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2026-04-06 Nathaniel Shead <nathanieloshead@gmail.com>
PR libstdc++/124268
* doc/invoke.texi: Note that -Wexpose-global-module-tu-local
also applies to 'export using' declarations.
2026-04-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* doc/install.texi (Specific, amd64-*-solaris2*, i?86-*-solaris2*)
(sparc-sun-solaris2*, sparc64-*-solaris2*, sparcv9-*-solaris2*)
(x86_64-*-solaris2*): Remove. Fold into ...
(Specific, *-*-solaris2*): ... this.
Rewrite.
2026-04-04 Sandra Loosemore <sloosemore@baylibre.com>
* doc/invoke.texi (Picolibc Options): Copy-edit for markup, use
of proper names, etc.
2026-04-04 Sandra Loosemore <sloosemore@baylibre.com>
* doc/invoke.texi (GCC Command Options): Move Picolibc Options
section to Target-Specific Options.
(Option Summary): Likewise.
2026-04-04 Sandra Loosemore <sloosemore@baylibre.com>
* doc/extend.texi (Common Attributes): Fix cross-reference for
renamed "Submodel Options" -> "Target-Specific Options".
* doc/invoke.texi (Invoking GCC): Likewise for the menu.
(Option Summary): Likewise for the use here.
(Submodel Options): Rename to Target-Specific Options. Leave
an anchor with the old name. Add better index entries. Rewrite
introductory text.
(Precompiled Headers): Fix another cross-reference.
2026-04-04 Sandra Loosemore <sloosemore@baylibre.com>
PR target/107337
* doc/invoke.texi (x86 Options): Add CX16 feature to nocona,
alderlake, arrowlake, arrowlake-s, pantherlake, novalake,
bonnell, sierraforest, grandridge, clearwaterforest, and amdfam10
family processors.
2026-04-04 Richard Biener <rguenther@suse.de>
* doc/gccint.texi: Add named pattern index with @mdindex.
* doc/md.texi (Standard Pattern Names For Generation): Split
table into two using subsections, splitting out vectorizer
related standard patterns. Use @mdindex for all standard
pattern names.
2026-04-04 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (xtensa_legitimize_address):
Add code to legitimize the displacement of 64 kilobytes before and
after using two ADDMI instructions.
2026-04-04 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.md (negsf2):
Change define_insn to define_insn_and_split, and replace the
corresponding output template with the split pattern.
2026-04-04 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (TARGET_DIFFERENT_ADDR_DISPLACEMENT_P):
Remove.
2026-04-04 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (smalloffset_mem_p):
Rename it to smalloffset_address_p and remove the result check
of MEM_P().
(constantpool_address_p): Change from static scope to global.
* config/xtensa/xtensa-protos.h (smalloffset_mem_p):
Rename it to smalloffset_address_p.
(constantpool_address_p): New function prototype.
* config/xtensa/constraints.md (R):
Change the call in (match_test "...") from smalloffset_mem_p()
to smalloffset_address_p().
(T, U): Change the call in (match_test "...") from
constantpool_mem_p() to constantpool_address_p().
2026-04-03 Sandra Loosemore <sloosemore@baylibre.com>
PR c/123234
* doc/extend.texi (Decimal Float): Clarify that GCC really does
support only the older N1312 draft as documented here, not the
standard C23 functionality yet.
2026-04-03 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/124754
* tree-ssa-strlen.cc (strlen_pass::handle_builtin_strcpy): Make
sure both get_stridx calls are done before first get_strinfo call.
(strlen_pass::handle_builtin_memcpy): Likewise.
(strlen_pass::handle_builtin_strcat): Likewise.
2026-04-03 Sandra Loosemore <sloosemore@baylibre.com>
PR debug/94491
* doc/invoke.texi (Debugging Options): Explicitly document what
-g2 does instead of just saying it's the default.
2026-04-03 Sandra Loosemore <sloosemore@baylibre.com>
PR other/94182
* doc/implement-c.texi (Characters implementation): Add
cross-reference to more detailed discussion about signedness.
* doc/invoke.texi (C Dialect Options): Combine -fsigned-char
and -funsigned-char table entries since the following discussion
applies to both. Add an anchor so other things can point at it.
(Warning Options): Add cross-references to the above two places.
Clarify that the warning is given regardless of whether char is
signed or unsigned.
2026-04-02 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/124746
* tree-ssa-phiprop.cc (propagate_with_phi): Treat
and aggregate copy as it is a trapping load.
2026-04-02 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* tree-ssa-phiprop.cc (propagate_with_phi): Move the
check for load from ptr before the checks of domination.
2026-04-02 Lulu Cheng <chenglulu@loongson.cn>
* config/loongarch/loongarch-protos.h
(loongarch_parse_fmv_features): Modify parameter type.
* config/loongarch/loongarch-target-attr.cc
(loongarch_parse_fmv_features): Some errors have been
changed to warnings.
* config/loongarch/loongarch.cc
(loongarch_process_target_version_attr): Update parameters.
(loongarch_check_target_clone_version): Likewise.
(loongarch_option_same_function_versions): Likewise.
(TARGET_CHECK_TARGET_CLONE_VERSION): Define.
2026-04-01 Tamar Christina <tamar.christina@arm.com>
Roger Sayle <roger@nextmovesoftware.com>
PR target/123238
* config/aarch64/aarch64.cc (aarch64_rtx_costs) <case NE/EQ>:
Provide improved costs for scalar and vector comparisons.
2026-04-01 Roger Sayle <roger@nextmovesoftware.com>
PR target/123238
* expr.cc (convert_tree_comp_to_rtx): Make global.
* expr.h (convert_tree_comp_to_rtx): Prototype here.
* internal-fn.cc (expand_vec_cond_mask_optab_fn): Use rtx_costs
to determine whether swapping operands would result in better
code.
* config/i386/i386-expand.cc (ix86_expand_int_vec_cmp): On
AVX512 targets use a ternlog instead of a comparison to negate
the mask (requires one instruction instead of two).
* config/i386/i386.cc (ix86_rtx_costs): Refactor code for UNSPEC.
Provide costs for UNSPEC_BLENDV and UNSPEC_MOVMSK. Provide
costs for comparison operators of integer vector modes.
2026-04-01 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/124696
* lra-constraints.cc (simplify_operand_subreg): Reload
paradoxical subreg only if it requires more than one hard reg.
2026-04-01 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* config/s390/s390.cc (print_operand): Use fputs instead of
fprintf.
2026-04-01 Sandra Loosemore <sloosemore@baylibre.com>
PR preprocessor/70917
* doc/invoke.texi (Environment Variables): Clarify that LC_ALL,
LC_CTYPE, LC_MESSAGES, and LANG affect only diagnostics and
informational output from GCC, not the encodings of input and
output files. Remove separate bit-rotten entry for LANG.
2026-04-01 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/124742
* tree-ssa-forwprop.cc (optimize_aggr_zeroprop): Exit
if the vdef on the stmt is NULL.
2026-04-01 H.J. Lu <hjl.tools@gmail.com>
PR middle-end/124697
* function.cc (assign_parm_adjust_stack_rtl): Force a local copy
if the current alignment is less than the minimum of
BIGGEST_ALIGNMENT and MAX_SUPPORTED_STACK_ALIGNMENT.
2026-04-01 Richard Biener <rguenther@suse.de>
Sandra Loosemore <sloosemore@baylibre.com>
PR middle-end/124634
* doc/ifn.texi: New file.
* doc/gccint.texi: Include ifn.texi.
* Makefile.in (TEXI_GCCINT_FILES): Add ifn.texi.
2026-04-01 Sandra Loosemore <sloosemore@baylibre.com>
PR c/61896
* doc/cppopts.texi (-finput-charset=): Remove long-obsolete
locale discussion. Document behavior about ill-formed inputs.
2026-04-01 Sandra Loosemore <sloosemore@baylibre.com>
* doc/poly-int.texi: Add copyright notice.
* doc/specs.texi: Likewise.
2026-03-31 Eric Botcazou <ebotcazou@adacore.com>
* tree-ssa-dse.cc (compute_trims): Bail out if ref->size is not
byte aligned either.
2026-03-31 Mikael Morin <mikael@gcc.gnu.org>
Christopher Albert <albert@tugraz.at>
PR fortran/121185
PR fortran/124661
* tree-inline.cc (debug_find_tree, debug_find_tree_1): Move
and rename functions...
* tree.cc (find_tree, find_tree_1): ... here.
* tree-inline.h (debug_find_tree): Move renamed declaration...
* tree.h (find_tree): ... here.
2026-03-31 H.J. Lu <hjl.tools@gmail.com>
PR target/124165
PR target/124684
* config/i386/i386.cc (ix86_symbolic_const_load_p_1): Renamed to
...
(ix86_need_alignment_p_1): This.
(ix86_symbolic_const_load_p): Renamed to ...
(ix86_need_alignment_p): This.
(ix86_find_max_used_stack_alignment): Call ix86_access_stack_p
only if the INSN needs alignment > stack alignment.
2026-03-31 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
* config/aarch64/aarch64-sys-regs.def: Copy from Binutils.
2026-03-31 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
* config/aarch64/aarch64-option-extensions.def (poe2):
New CLI extension option.
(tev): Likewise.
(tlbid): Likewise.
(gcie): Likewise.
(mpamv2): Likewise.
(lscp): Likewise.
(mops-go): Likewise.
(sve2p3): Likewise.
(sme2p3): Likewise.
(f16f32dot): Likewise.
(sve-b16mm): Likewise.
(mtetc): Likewise.
(f16f32mm): Likewise.
(f16mm): Likewise.
* doc/invoke.texi (poe2): Document option.
(tev): Likewise.
(tlbid): Likewise.
(gcie): Likewise.
(mpamv2): Likewise.
(lscp): Likewise.
(mops-go): Likewise.
(sve2p3): Likewise.
(sme2p3): Likewise.
(f16f32dot): Likewise.
(sve-b16mm): Likewise.
(mtetc): Likewise.
(f16f32mm): Likewise.
(f16mm): Likewise.
2026-03-31 Wu Haotian <rigoligo03@gmail.com>
* config.gcc: removed linux.h and t-linux for loongarch*-*-elf* targets
2026-03-30 H.J. Lu <hjl.tools@gmail.com>
Richard Biener <rguenther@suse.de>
PR target/120839
PR middle-end/124671
* function.cc (assign_parm_adjust_stack_rtl): Get the parameter
as argument. Adjust alignment check forcing a local copy.
(assign_parms): Adjust.
* config/i386/i386.cc (ix86_argument_passed_on_stack_p): New.
(ix86_update_stack_alignment): Ignore argument passed on stack.
2026-03-30 Vineet Gupta <vineet.gupta@linux.dev>
* config/bpf/bpf.md (zero_extendhidi2): Add alternates for
alu32 and use 'W' for reg operands.
(zero_extendqidi2): Ditto.
2026-03-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/124692
* tree-cfg.cc (replace_uses_by): Call update_stmt after
substitution and before folding.
2026-03-30 Saurabh Jha <saurabh.jha@arm.com>
Evgeny Karpov <evgeny.karpov@arm.com>
* config/aarch64/aarch64.cc
(aarch64_scalar_mode_supported_p): Only return true on TFmode if
TARGET_LONG_DOUBLE_128 is set.
2026-03-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/88576
* tree-ssa-alias.cc (check_fnspec): Remove flag_errno_math check.
* ipa-modref.cc (modref_access_analysis::process_fnspec):
Likewise.
2026-03-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/124677
* tree-vect-loop.cc (vectorizable_recurr): Skip vector
stmts for the def.
2026-03-30 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
* config/aarch64/aarch64-cores.def (AARCH64_CORE): Add Apple M5
cores.
* config/aarch64/aarch64-tune.md: Regenerate.
* doc/invoke.texi: Add apple-m5 core to the ones listed
for arch and tune selections.
2026-03-30 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR target/102309
* config/arm/arm.cc (arm_constant_limit): Allways allow at least
one insn when loading a constant.
2026-03-29 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/124674
* config/riscv/riscv-modes.def: Create OImode.
2026-03-27 Vineet Gupta <vineet.gupta@linux.dev>
PR target/124670
* config/bpf/bpf.md (zero_extendsidi2): Use 'W' in asm template.
2026-03-27 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/124649
* regcprop.cc (maybe_mode_change): Return early
for unordered modes.
2026-03-27 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/124613
* config/riscv/riscv-vector-builtins.cc (rvv_switcher::rvv_switcher):
Add riscv_registering_builtins.
(rvv_switcher::~rvv_switcher): Set riscv_registering_builtins to
false.
* config/riscv/riscv.cc (riscv_vector_mode_supported_p): Use
riscv_registering_builtins.
* config/riscv/riscv.h: Declare.
2026-03-27 Richard Biener <rguenther@suse.de>
PR debug/124644
* dwarf2out.cc (dwarf2out_abstract_function): Only
add DW_AT_artificial if the decl isn't DECL_ARTIFICIAL.
2026-03-27 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
* Makefile.in: (PLUGIN_HEADERS): Add $(srcdir)/topics/*.h.
(install-plugin): Preserve directory structure for topics
headers.
2026-03-25 Richard Biener <rguenther@suse.de>
PR gcov-profile/121074
* coverage.h (coverage_init_file): Declare.
(coverage_finish_file): Likewise.
* coverage.cc (coverage_init_file): New function, split
out actual file opening and writing from ...
(coverage_init): ... here.
(coverage_finish_file): Likewise for file closing, from ...
(coverage_finish): ... here.
* tree-profile.cc (tree_profiling): Call coverage_init_file
and coverage_finish_file here.
2026-03-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/124627
* tree-inline.cc (copy_debug_stmts): Only copy debug
stmts that are still in the IL.
2026-03-25 Alexandre Oliva <oliva@adacore.com>
* gcc-diagnostic-spec.cc (nowarn_spec_t::nowarn_spec_t): Map
OPT_Wuse_after_free like OPT_Wuse_after_free_.
2026-03-25 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/i386/i386.cc (ix86_in_large_data_p): Check for .lbss etc.
(x86_64_elf_section_type_flags): Clear SECTION_NOTYPE for .lbss etc.
* config/i386/x86-64.h (MACH_DEP_SECTION_ASM_FLAG): Define.
* config/i386/sol2.h [HAVE_SOLARIS_AS]
(MACH_DEP_SECTION_ASM_FLAG): Redefine as 'h'.
2026-03-25 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* cgraph.cc (cgraph_edge::get_next_speculative_id): Use
next_speculative_call_target in get_next_speculative_id.
2026-03-24 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/124572
* lra-eliminations.cc (lra_eliminate): Push new reload insns for
eliminations in insns.
2026-03-24 Christopher Bazley <chris.bazley@arm.com>
* doc/rtl.texi: Fix example of the SSA form.
2026-03-24 Alfie Richards <alfie.richards@arm.com>
* tree-vect-stmts.cc (vectorizable_load): Swap order of failure
message checks.
2026-03-23 Stefan Weigl-Bosker <stefan@s00.xyz>
* omp-general.h: Fix typos.
2026-03-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/124599
* tree-ssa-pre.cc (compute_avail): Make the VUSE in the
PRE reference expression part of the value again.
(phi_translate_1): Likewise.
2026-03-23 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/124547
* configure.ac: After config.gcc inclusion use or set only gas instead
of gas_flag and gnu_ld instead of gnu_ld_flag.
* config.gcc: Document possibility of gas_flag or gnu_ld_flag being
empty.
* acinclude.m4 (gcc_GAS_FLAGS): Use gas instead of gas_flag.
(gcc_AC_INITFINI_ARRAY): Likewise. Use gnu_ld instead of gnu_ld_flag.
* configure: Regenerate.
2026-03-22 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/124597
* config/i386/i386-builtins.cc (ix86_init_builtins_va_builtins_abi):
Also add nothrow and leaf attributes to the va builtins.
2026-03-22 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/124597
* gimple-fold.cc (gimple_fold_builtin_stdarg): Correct the
eh_update argument to gsi_replace for the VA_END case.
2026-03-21 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/123852
* config/sh/sh.md (movsicc_t_false): Add the SImode
on the if_then_else.
(movsicc_t_true): Likewise.
(negsi_cond): Likewise.
(negdi_cond): Add the DImode on the if_then_else.
(bst_m2a): Add the QImode on the if_then_else.
2026-03-20 Tobias Burnus <tburnus@baylibre.com>
Sandra Loosemore <sloosemore@baylibre.com>
PR c/122866
* gimplify.cc (omp_instantiate_mapper): Give a sorry if there are
iterators.
2026-03-20 Kwok Cheung Yeung <kcyeung@baylibre.com>
Sandra Loosemore <sloosemore@baylibre.com>
* gimplify.cc (gimplify_omp_workshare): Handle iterators in
"target data".
2026-03-20 Kyrylo Tkachov <ktkachov@nvidia.com>
* config/aarch64/tuning_models/olympus.h (olympus_tunings): Set
loop_align to 64:16.
2026-03-20 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (gen_int_relational):
Specify the table array "info" and the pointer to its elements
as const.
2026-03-20 Jakub Jelinek <jakub@redhat.com>
PR target/124565
* config/i386/i386.cc (ix86_build_builtin_va_list_64): Set TREE_PUBLIC
on type_decl.
2026-03-20 Jakub Jelinek <jakub@redhat.com>
PR target/124566
* config/sh/sh.cc (sh_build_builtin_va_list): Set TREE_PUBLIC
on type_decl.
2026-03-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/124578
* tree-ssa-sccvn.cc (vn_reference_eq): Consistently check
fields from vro2.
2026-03-20 Yangyu Chen <cyy@cyyself.name>
* config/aarch64/aarch64.cc (aarch64_generate_version_dispatcher_body):
Check DECL_VIRTUAL_P for virtual functions for LTO handling.
* config/i386/i386-features.cc (ix86_generate_version_dispatcher_body):
Ditto.
* config/riscv/riscv.cc (riscv_generate_version_dispatcher_body): Ditto.
* config/rs6000/rs6000.cc (rs6000_generate_version_dispatcher_body):
Ditto.
* config/loongarch/loongarch.cc
(loongarch_generate_version_dispatcher_body): Ditto.
2026-03-19 Jakub Jelinek <jakub@redhat.com>
PR target/124565
* config/alpha/alpha.cc (alpha_build_builtin_va_list): Set TREE_PUBLIC
on type_decl.
2026-03-19 Dhruv Chawla <dhruvc@nvidia.com>
* common.opt.urls: Added missing entry.
2026-03-18 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/124041
PR rtl-optimization/124439
* lra-constraints.cc (process_alt_operands): Check hard reg subreg
mode by hard_regno_mode_ok.
(curr_insn_transform): Always subsitute equivalence for hard reg
subreg.
2026-03-18 Richard Biener <rguenther@suse.de>
PR tree-optimization/124555
* match.pd ((A - B) >=/> 0 ? (A - B) : (B - A) -> abs (A - B)):
Guard the vector case with target_supports_op_p checks.
((A - B) <=/< 0 ? (A - B) : (B - A) -> -abs (A - B)): Likewise.
((type)A >=/> 0 ? A : -A -> abs (A)): Likewise.
((type)A <=/< 0 ? A : -A -> -abs (A)): Likewise.
2026-03-18 Dhruv Chawla <dhruvc@nvidia.com>
* Makefile.in (all.fda): Add `--print-autofdo-gcov-version` to
profile_merger invocation.
* auto-profile.cc (AUTO_PROFILE_VERSION): Move from here ...
* auto-profile.h (AUTO_PROFILE_VERSION): ... to here.
* common.opt: Add -print-autofdo-gcov-version and
--print-autofdo-gcov-version.
* doc/invoke.texi: Document the options.
* gcc.cc: Add include for auto-profile.h.
(driver_handle_option): Add OPT_print_autofdo_gcov_version.
(driver::maybe_print_and_exit): Handle the option.
2026-03-18 Richard Biener <rguenther@suse.de>
PR middle-end/124552
* function.cc (free_after_compilation): Free the copyid
allocator.
2026-03-18 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/124547
* configure.ac (--with-gnu-ld): Set gnu_ld_flag= instead of
gnu_ld_flag=no if not explicitly specified.
(--with-gnu-as): Similarly for gas_flag.
(DEFAULT_ASSEMBLER): Use wording without GNU as whenever gas_flag
is not yes rather than when it is no.
* configure: Regenerate.
2026-03-18 Richard Biener <rguenther@suse.de>
* common.opt (fpost-ipa-mem-report): Fix typo.
2026-03-18 Richard Biener <rguenther@suse.de>
* ipa-cp.cc (gather_edges_for_value): Return an auto_vec.
(decide_about_value): Simplify, fixing leak of callers.
2026-03-18 Prachi Godbole <pgodbole@nvidia.com>
PR target/123749
* ipa-locality-cloning.cc (partition_callchain): Start new partition
if no. of insns exceeds size and if there are nodes to process.
2026-03-18 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config/sparc/t-rtems: Add leon5 multilibs.
2026-03-17 Alice Carlotti <alice.carlotti@arm.com>
* config/aarch64/aarch64-sve2.md (@aarch64_pred_revd<mode>):
Remove movprfx alternative.
(@cond_revd<mode>): Likewise.
2026-03-17 Philipp Tomsich <philipp.tomsich@vrull.eu>
PR rtl-optimization/124476
* avoid-store-forwarding.cc
(store_forwarding_analyzer::process_store_forwarding): Replace
bitmap_all_bits_in_range_p with bitmap_any_bit_in_range_p and
return false on partial overlap. Remove redundant-store vectors
and their associated removal, dump, and deletion logic.
2026-03-17 Richard Biener <rguenther@suse.de>
* tree-vect-slp.cc (vect_analyze_slp): Release BST map when
returning.
2026-03-17 Richard Biener <rguenther@suse.de>
* tree-vect-loop.cc (_loop_vec_info::_loop_vec_info):
Initialize loop_iv_cond given it's no longer always
initialized ...
(vect_create_loop_vinfo): ... here. Fix formatting.
2026-03-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/122380
* tree-ssa-sccvn.h (copy_reference_ops_from_ref): Declare.
(vn_reference_compute_hash): Likewise.
(vn_reference_eq): Add parameter indicating lexical equivalence,
defaulted to false.
* tree-ssa-sccvn.cc (vn_reference_eq): Likewise.
(print_vn_reference_ops): Print alias type and alignment.
(vn_reference_compute_hash): Export.
(copy_reference_ops_from_ref): Likewise.
* tree-ssa-pre.cc (pre_expr_d::equal): Use lexical equivalence.
(get_or_alloc_expr_for_reference): Also get value-id, upon
zero assign a new value-id if the expression is unknown.
(expr_cmp): New helper.
(prefer): Likewise.
(pre_expr_DFS): Get expression exclusion bitmap and honor it.
(sorted_array_from_bitmap_set): If done for insertion, do limited
canonexpr() via pairwise prefer on expression pairs with the same
value, populating an exclution bitmap.
(phi_translate_1): Do not use the VN hashtable expressions
or insert there. Instead maintain a PRE view of expressions.
(clean): Adjust.
(do_hoist_insertion): Likewise.
(insert): Likewise.
(compute_avail): Use gimple_could_trap_p_1
on the original stmt rather than vn_reference_may_trap on
the VN leader. Use the original stmt operands for the PRE
view of reference expressions, only use the value number from the VN
tables. Remove no longer effective workarounds for semantically
different references with same value.
(fini_pre): Release operand vectors for PRE IL reference
expressions.
2026-03-17 Yangyu Chen <cyy@cyyself.name>
* config/i386/i386-features.cc (make_resolver_func): Use
symtab->change_decl_assembler_name instead of
SET_DECL_ASSEMBLER_NAME to properly update the symbol table.
2026-03-16 Jose E. Marchesi <jemarch@gnu.org>
* doc/install.texi (Configuration): Fix copy pasto
--enable-objc-gc to --enable-algol68-gc.
2026-03-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/124528
* tree-scalar-evolution.cc (scev_dfs::add_to_evolution):
Perform the negation in an unsigned type if we cannot make
sure it will not cause UB.
2026-03-16 Kito Cheng <kito.cheng@sifive.com>
* doc/invoke.texi: Add experimental warning for RISC-V
big-endian support.
2026-03-16 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc
(constantsynth_method_lshr_mi12b): New.
(constantsynth_methods): Add constantsynth_method_lshr_mi12b.
2026-03-14 Jakub Jelinek <jakub@redhat.com>
PR other/124508
* config/loongarch/genopts/gen-evolution.awk: Rename copyright_header
routine so that update-copyright.py isn't upset about it.
2026-03-13 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/124454
* regcprop.cc (pass_cprop_hardreg::execute): If something
changed and non-call exceptions is on, call purge_all_dead_edges
and cleanup_cfg.
2026-03-13 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/117182
* lra-constraints.cc (curr_insn_transform): Don't change an output
operand by constant or invariant equivalence.
2026-03-13 Andre Vieira <andre.simoesdiasvieira@arm.com>
* config/arm/arm.cc (TARGET_C_BITINT_TYPE_INFO): New Macro.
(arm_return_in_memory): Return true for any _BitInt(N) where N > 64.
(arm_needs_doubleword_align): Return true for any _BitInt(N) where N > 32.
(arm_bitint_type_info): New.
* config/arm/arm-protos.h (arm_bitint_type_info): New declaration.
2026-03-13 Saurabh Jha <saurabh.jha@arm.com>
PR target/122953
* config/aarch64/aarch64-c.cc
(TARGET_AARCH64_MS_ABI): Explicitly set it to 0 if not on mingw.
(aarch64_define_unconditional_macros): Remove __ARM_PCS_AAPCS64
from here.
(aarch64_update_cpp_builtins): Define __ARM_PCS_AAPCS64 if not
on Windows ABI.
---
Hey,
Regression tested on aarch64-linux-gnu and found no regressions.
Built for arch64-w64-mingw32, ran target dependent tests, and
found no regressions.
Ok for master?
Thanks,
Saurabh
2026-03-13 Jakub Jelinek <jakub@redhat.com>
* tree-profile.cc (struct conds_ctx): Formatting fixes.
Rename B1, B2, G1, G2 and G3 members to b1, b2, g1, g2 and g3.
Adjust all uses.
(topological_cmp, topological_src_cmp, index_of, single_p,
single_edge, contract_edge_up): Formatting fixes.
(struct outcomes): Likewise.
(conditional_succs, condition_index, condition_uid,
masking_vectors, emit_assign, emit_bitwise_op): Likewise.
(make_top_index_visit, make_top_index): Likewise. Rename
L argument to l.
(paths_between): Formatting fixes.
(struct condcov): Likewise.
(cov_length, cov_blocks, cov_masks, cov_maps, cov_free): Likewise.
(find_conditions): Likewise. Don't start warning_at message with
uppercase letter.
(struct counters): Formatting fixes.
(find_counters, resolve_counter, resolve_counters,
instrument_decisions): Likewise.
(init_ic_make_global_vars): Comment formatting fixes.
(gimple_init_gcov_profiler): Formatting fixes.
2026-03-13 Jørgen Kvalsvik <j@lambda.is>
PR ipa/124462
* tree-profile.cc (masking_vectors): Skip blocks with less than
2 non-complex incoming edges.
2026-03-13 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (constantsynth_pass1):
Change the comparison between src and SET_SRC(pat) to be performed
using rtx_equal_p rather than between references (pointer values)
directly, and adjust the destination of changes in validate_change
to eliminate the need to call gen_rtx_SET.
(constantsynth_pass2):
Fill in missing spacing in one place and changes dump file output
slightly.
2026-03-13 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (xtensa_split_operand_pair)
Move the common code from the split part of movd[if]_internal
MD patterns into this function, since this function is only
called from the split part of that patterns.
Also, during non-debug optimization, re-register new literal
pool entries with the split values themselves instead of
splitting the memory reference of the source numeric constant
placed in the pool.
(split_DI_SF_DF_const):
Rename to convert_SF_const and remove the split function of
D[IF]mode constant assignment.
(do_largeconst2):
Change the call from split_DI_SF_DF_const to convert_SF_const.
* config/xtensa/xtensa.md (movdi_internal, movdf_internal):
Reduce their split parts to just a call to xtensa_split_operand_pair.
2026-03-13 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (FPreg_neg_scaled_simm12b_1):
Change the test to determine whether REAL_VALUE_TYPE is a non-
zero finite value to whether it is normal.
(FPreg_neg_scaled_simm12b):
Place the call to FPreg_neg_scaled_simm12b_1 last in the
expression to improve performance, and change the dump file
output slightly.
2026-03-13 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa-passes.def (pass_xtensa_largeconst):
Rename to pass_xtensa_largeconst1.
(pass_xtensa_largeconst2): New target-specific pass.
* config/xtensa/xtensa-protos.h (make_pass_xtensa_largeconst):
Rename to make_pass_xtensa_largeconst1.
(make_pass_xtensa_largeconst2): New function prototype.
* config/xtensa/xtensa.cc (litpool_set_src_1):
Change to process large numeric constant assignments to DImode
as well as [SH]Imode.
(do_largeconst):
Rename it to do_largeconst1 and leave only the mandatory insn
transformation process.
(do_largeconst2): New function that inherits the optional insn
transformation processes from the old do_largeconst.
(rest_of_handle_largeconst):
Rename to rest_of_handle_largeconst1 and change to call
do_largeconst1.
(rest_of_handle_largeconst2): New function that calls
do_largeconst2.
(pass_data_xtensa_largeconst)
Rename to pass_data_xtensa_largeconst1.
(pass_xtensa_largeconst):
Rename to pass_xtensa_largeconst1 and change to call
rest_of_handle_largeconst1.
(pass_data_xtensa_largeconst2): New opt_pass data.
(pass_xtensa_largeconst2):
New rtl_opt_pass that runs rest_of_handle_largeconst2 when non-
debug optimizations are enabled.
(make_pass_xtensa_largeconst):
Rename to make_pass_xtensa_largeconst1.
(make_pass_xtensa_largeconst2): New function definition.
2026-03-13 Jakub Jelinek <jakub@redhat.com>
PR target/124461
* config/i386/i386.md (movrs<mode>): Use <imodesuffix> only for
-masm=att, not for -masm=intel.
2026-03-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/123822
* simplify-rtx.cc (simplify_context::simplify_subreg): Check the
mode of the part to be non-VOIDmode before calling gen_rtx_SUBREG.
2026-03-12 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/124452
* lra-constraints.cc (curr_insn_transform): Move return on the
postponed insn before any reload generation.
2026-03-12 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Revert:
2026-02-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (gnu_ld_flag): Move $gcc_cv_ld --version check into
AC_ARG_WITH(gnu-ld).
(gcc_cv_ld): Set before gnu_ld_flag.
(gas_flag): Move $gcc_cv_ld --version check into AC_ARG_WITH(gnu-ld).
(gcc_cv_as): Set before gas_flag.
* configure: Regenerate.
2026-03-12 Martin Jambor <mjambor@suse.cz>
PR objc/124260
* ipa-prop.cc (ipa_analyze_var_static_initializer): Skip a constructor
entry if its index is NULL.
2026-03-12 Richard Biener <rguenther@suse.de>
PR bootstrap/124406
* ipa-pure-const.cc (skip_function_for_local_pure_const):
Do not analyze interposable functions when LTO is enabled.
2026-03-12 H.J. Lu <hjl.tools@gmail.com>
PR target/122925
PR target/119979
* config/sh/sh.cc (TARGET_PROMOTE_PROTOTYPES): Removed.
2026-03-12 Philipp Tomsich <philipp.tomsich@vrull.eu>
* fold-mem-offsets.cc (do_analysis): Revise comment.
2026-03-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR middle-end/120030
* symtab.cc (symtab_node::set_init_priority): Better
handle the case of setting the priority back to default.
(cgraph_node::set_fini_priority): Likewise.
2026-03-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* doc/extend.texi (constructor/destructor): Add documentation
about multiple attributes here.
2026-03-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* doc/extend.texi (constructor/destructor): Document
the priority when none is supplied.
2026-03-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/124409
* doc/install.texi: Increment the required binutils for
riscv to 2.40.
2026-03-12 Marek Polacek <polacek@redhat.com>
PR c++/124397
* diagnostic.h (emitting_diagnostic_p): New.
* diagnostics/context.h (context::emitting_diagnostic_p): New.
2026-03-11 Jakub Jelinek <jakub@redhat.com>
PR target/124436
* genautomata.cc (output_dfa_insn_code_func): Use
MIN (INT_MAX, 2U * uid) instead of 2 * uid in dfa_insn_code_enlarge.
2026-03-11 H.J. Lu <hjl.tools@gmail.com>
PR target/124407
* config/i386/i386-features.cc (ix86_place_single_vector_set):
Handle non-int load with integer constant.
(ix86_broadcast_inner): Convert const0_rtx to non-int mode.
2026-03-11 Richard Sandiford <rdsandiford@googlemail.com>
PR middle-end/124435
* expr.cc (store_field_updates_msb_p): Use GET_MODE_BITSIZE
instead of GET_MODE_SIZE. Handle the two endiannesses separately.
2026-03-11 Jeff Law <jeffrey.law@oss.qualcomm.com>
Revert:
2026-02-27 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR tree-optimization/90036
* tree-ssa-scopedtables.cc (avail_exprs_stack::record_cond): Always
record the new hash table entry.
2026-03-11 Jeff Law <jeffrey.law@oss.qualcomm.com>
Revert:
2026-02-28 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR tree-optimization/90036
* tree-ssa-dom.cc (back_propagate_equivalences): Accept new
argument for available expression stack. Lookup equivalences
in the expression hash table too. If an expression hash a
known constant value, record it and recurse.
(record_temporary_equivalences): Back propagate for a subset of
edge equivalences.
2026-03-11 Richard Earnshaw <rearnsha@arm.com>
PR target/123271
* config/arm/arm.md (subvsi3_intmin): Renamed to ...
(sub_cmpVsi3_intmin): ... this.
(subvsi3): Renamed to ...
(sub_cmpVsi3): ... this.
(subvsi3_imm1): Renamed to ...
(sub_cmpVsi3_imm1): ... this.
(usubvsi3_borrow): Renamed to ...
(usub_cmpVsi3_borrow): ... this.
(usubvsi3_borrow_imm): Renamed to ...
(usub_cmpVsi3_borrow_imm): ... this.
(subvsi3_borrow): Renamed to ...
(sub_cmpVsi3_borrow): ... this.
(subvsi3_borrow_imm): Renamed to ...
(sub_cmpVsi3_borrow_imm): ... this.
2026-03-11 Arsen Arsenović <aarsenovic@baylibre.com>
* config/gcn/gcn.cc (gcn_addr_space_convert): Use
SHARED_BASE_REG to find flat address space base of LDS.
2026-03-11 Arsen Arsenović <aarsenovic@baylibre.com>
PR target/124044
* config/gcn/gcn.cc (gcn_addr_space_resolve_default): New
function. Converts from ADDR_SPACE_DEFAULT to
DEFAULT_ADDR_SPACE.
(gcn_addr_space_convert): Resolve from_type and to_type address
spaces.
2026-03-11 Arsen Arsenović <aarsenovic@baylibre.com>
* config/gcn/gcn.cc (gcn_regno_reg_class): Handle
MEMORY_APERTURE_REGS.
(gcn_hard_regno_rename_ok): Return false for memory aperture
regs.
(gcn_memory_move_cost): Handle memory aperture regs the same as
general registers.
(gcn_hard_regno_nregs): Handle MEMORY_APERTURE_REGS.
* config/gcn/gcn.h (SHARED_BASE_REG): Define.
(SHARED_LIMT_REG): Ditto.
(PRIVATE_BASE_REG): Ditto.
(PRIVATE_LIMT_REG): Ditto.
(MEMORY_APERTURE_REG_P): New macro. Evaluates to non-zero if
parameter is one of the above registers.
(SSRC_REGNO_P): Also evaluate to non-zero for aperture regs, as
they can be sources to scalar instructions.
(enum reg_class): New class: MEMORY_APERTURE_REGS.
(REG_CLASS_NAMES): Provide name for that class.
(MEMORY_APERTURE_REGS_MASK): New helper macro. Value of
NAMED_REG_MASK2 for each of the memory aperture regs.
(REG_CLASS_CONTENTS): Add the above registers to
MEMORY_APERTURE_REGS, SGPR_VOP_SRC_REGS, and SGPR_SRC_REGS.
2026-03-11 Philipp Tomsich <philipp.tomsich@vrull.eu>
* fold-mem-offsets.cc (do_check_validity): fix wrong mode
and rename arguments to avoid future confusion
2026-03-10 Yangyu Chen <cyy@cyyself.name>
* config/riscv/riscv.cc (riscv_check_target_clone_version):
Fix TARGET_CHECK_TARGET_CLONE_VERSION implementation.
2026-03-10 Richard Biener <rguenther@suse.de>
* tree-vect-loop.cc (vect_get_datarefs_in_loop): Add function
level comment.
(vect_analyze_loop_2): Fix comment.
2026-03-10 Jan Hubicka <jh@suse.cz>
Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/120987
* ipa-modref.cc (ipa_merge_modref_summary_after_inlining): Mask
off non const/pure/novops related flags when combining of outer
functions.
2026-03-09 Jonathan Wakely <jwakely@redhat.com>
PR translation/124422
* config/loongarch/loongarch-target-attr.cc
(loongarch_parse_fmv_features): Fix spelling in diagnostics.
* params.opt (max-devirt-targets): Fix typo in description.
2026-03-09 Martin Jambor <mjambor@suse.cz>
PR ipa/124291
* ipa-cp.cc (ipcp_val_replacement_ok_p): Allow more precise
contexts that what the clone was originally intended for.
2026-03-09 Dhruv Chawla <dhruvc@nvidia.com>
PR gcov-profile/124075
* config/aarch64/gcc-auto-profile: Add "-o perf.data" to perf
record invocation.
* config/i386/gcc-auto-profile: Likewise.
2026-03-09 Dhruv Chawla <dhruvc@nvidia.com>
PR gcov-profile/123923
* config/aarch64/gcc-auto-profile: Add --inherit to perf record flags.
* config/i386/gcc-auto-profile: Likewise.
2026-03-09 Richard Sandiford <rdsandiford@googlemail.com>
PR middle-end/118608
* rtlanal.cc (truncated_to_mode): Revert a change made on 2026-02-03.
* config/mips/mips.md (*extenddi_truncate<mode>): Likewise.
2026-03-09 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.md (movdi_internal, movdf_internal, *btrue,
*ubtrue, movsicc_internal0, movsicc_internal1, movsfcc_internal0,
movsfcc_internal1):
Rewrite in compact syntax.
2026-03-08 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/124403
* config/riscv/riscv.cc (riscv_get_vls_cc_attr): Fix formating
of the diagnostic.
2026-03-07 Sandra Loosemore <sloosemore@baylibre.com>
PR driver/69367
PR driver/69849
* Makefile.in (TEXI_GCCINT_FILES): Add specs.texi.
* doc/gccint.texi: Include it.
* doc/install.texi: Fix cross-references.
* doc/invoke.texi: Likewise.
(Option Summary): Reclassify -specs/--specs as a developer option.
(Overall Options): Move -specs= documentation to...
(Developer Options): ...here.
(Spec Files): Move entire section to....
* doc/specs.texi: ....new file.
* common.opt.urls: Regenerated.
2026-03-07 Jørgen Kvalsvik <j@lambda.is>
* tree-profile.cc (struct conds_ctx): Add edges.
(topological_src_cmp): New function.
(masking_vectors): New search strategy.
2026-03-07 Robin Dapp <rdapp@oss.qualcomm.com>
PR rtl-optimization/121649
* cse.cc (find_sets_in_insn): Only use non-reg vec_select
simplifications.
2026-03-06 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/124126
* config/aarch64/aarch64-builtins.cc (aarch64_init_ls64_builtins_types): Copy
the array type before setting the mode.
2026-03-06 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/124135
* tree-inline.cc (expand_call_inline): If both gimple_call_lhs (stmt)
and use_retvar aren't gimple regs but have gimple reg type, use
separate load of use_retva into SSA_NAME and then store of it
into gimple_call_lhs (stmt).
2026-03-06 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/124358
* match.pd ((ptr) (x p+ y) p+ z -> (ptr) (x p+ (y + z))): Simplify
into (ptr) x p+ (y + z) instead.
2026-03-05 Victor Do Nascimento <victor.donascimento@arm.com>
PR tree-optimization/124037
* tree-vect-stmts.cc (get_load_store_type): Fix
alignment_support_scheme categorization for early
break VMAT_ELEMENTWISE accesses.
2026-03-05 Richard Biener <rguenther@suse.de>
* tree-vect-loop.cc (vectorizable_live_operation): Fix typo.
2026-03-05 Richard Biener <rguenther@suse.de>
PR tree-optimization/98064
* tree-vect-loop.cc (vectorizable_live_operation): Do
not restrict replacing uses in a LC PHI.
2026-03-05 Jakub Jelinek <jakub@redhat.com>
* config/i386/i386.md (swap<mode>): Swap operand order for
-masm=intel.
2026-03-05 Xi Ruoyao <xry111@xry111.site>
PR target/123807
PR middle-end/124250
* config/loongarch/loongarch.cc
(loongarch_expand_vector_init_same): Revert r16-7163 change.
2026-03-05 Jakub Jelinek <jakub@redhat.com>
PR target/124349
* config/i386/sse.md (iptrssebvec_2): New define_mode_attr.
(cvthf82ph<mode><mask_name>): Use it for -masm=intel input
operand.
2026-03-05 Jakub Jelinek <jakub@redhat.com>
PR target/124367
* config/i386/sse.md (*andnot<mode>3): Use 0x44 rather than $0x44
for -masm=intel.
2026-03-05 Jakub Jelinek <jakub@redhat.com>
PR target/124366
* config/i386/i386.md (@wrss<mode>, @wruss<mode>): Swap operand
order for -masm=intel.
2026-03-04 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/119568
* tree-ssa-math-opts.cc (convert_plusminus_to_widen): Reject different
mode classes.
2026-03-04 Robin Dapp <rdapp@oss.qualcomm.com>
PR rtl-optimization/124041
* lra-constraints.cc (curr_insn_transform): Check if hardreg is
valid in subreg context.
2026-03-04 Philipp Tomsich <philipp.tomsich@vrull.eu>
PR rtl-optimization/124351
* avoid-store-forwarding.cc (process_store_forwarding): Add
bitmap_clear after allocating forwarded_bytes.
2026-03-04 Jakub Jelinek <jakub@redhat.com>
PR target/124341
* config/i386/sse.md (vcvt<convertfp8_pack><mode><mask_name>): Use
<mask_operand3> rather than <mask_operand2> for -masm=intel.
2026-03-04 Jakub Jelinek <jakub@redhat.com>
PR target/124349
* config/i386/sse.md (avx10_2_comisbf16_v8bf): Use %w1 instead of %1
for -masm=intel.
2026-03-03 H.J. Lu <hjl.tools@gmail.com>
PR target/124165
* config/i386/i386-protos.h (symbolic_reference_mentioned_p):
Change the argument type from rtx to const_rtx.
* config/i386/i386.cc (symbolic_reference_mentioned_p): Likewise.
(ix86_access_stack_p): Add 2 auto_bitmap[] arguments. Cache
the register BB domination result.
(ix86_symbolic_const_load_p_1): New.
(ix86_symbolic_const_load_p): Likewise.
(ix86_find_max_used_stack_alignment): If there is no symbolic
constant load into the register, don't call ix86_access_stack_p.
2026-03-03 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/115042
* lra-int.h (lra_postponed_insns): New.
* lra.cc (lra_set_insn_deleted, lra_asm_insn_error): Clear
postponed insn flag.
(lra_process_new_insns): Propagate postponed insn flag for asm
gotos.
(lra_postponed_insns): New.
(lra): Initialize lra_postponed_insns. Push postponed insns on
the stack.
* lra-constraints.cc (postpone_insns): New function.
(curr_insn_transform): Use it to postpone processing reload insn
constraints. Skip processing postponed insns.
2026-03-03 Richard Biener <rguenther@suse.de>
PR middle-end/45273
* predict.cc (combine_predictions_for_insn): Use int64_t
math instead of double.
2026-03-03 Jakub Jelinek <jakub@redhat.com>
PR target/124336
* config/i386/i386.cc (output_adjust_stack_and_probe): Use
or{b} rather than or%z0 and BYTE PTR rather than DWORD PTR.
(output_probe_stack_range): Likewise.
* config/i386/i386.md (probe_stack): Pass just 2 arguments
to gen_probe_stack_1, first adjust_address to QImode, second
const0_rtx.
(@probe_stack_1_<mode>): Remove.
(probe_stack_1): New define_insn.
2026-03-03 Jonathan Wakely <jwakely@redhat.com>
* fold-const.cc: Fix "Conveinece" typo in comment.
2026-03-03 Richard Biener <rguenther@suse.de>
* tree-vect-slp.cc (vect_make_slp_decision): Do not call
vect_mark_slp_stmts.
* tree-vect-data-refs.cc (vect_enhance_data_refs_alignment):
We are always doing SLP.
(vect_supportable_dr_alignment): Likewise.
* tree-vect-loop.cc (vect_analyze_loop_2): No need to reset
STMT_SLP_TYPE.
2026-03-03 Jonathan Yong <10walls@gmail.com>
* Makefile.in: the libgdiagnostics shared object for mingw
should be based on host name, not target name.
2026-03-03 Richard Sandiford <rdsandiford@googlemail.com>
Artemiy Volkov <artemiy.volkov@arm.com>
PR rtl-optimization/123786
* rtl-ssa/functions.h (function_info::live_out_value): Delete.
(function_info::create_degenerate_phi): New overload.
* rtl-ssa/blocks.cc (all_uses_are_live_out_uses): Delete.
(function_info::live_out_value): Likewise.
(function_info::replace_phi): Keep live-out uses if they are followed
by a definition in the same EBB.
(function_info::create_degenerate_phi): New overload, extracted
from create_reg_use.
(function_info::add_phi_nodes): Ensure that there is a phi for
every live input that is redefined by a second or subsequent
block in the EBB. Record that such phis need live-out uses.
(function_info::record_block_live_out): Use look_through_degenerate_phi
rather than live_out_value when setting phi inputs. Remove use of
live_out_value for live-out uses. Inline the old handling of
bb_mem_live_out.
(function_info::start_block): Move append_bb call to...
(function_info::create_ebbs): ...here.
* rtl-ssa/insns.cc (function_info::create_reg_use): Use the new
create_degenerate_phi overload.
2026-03-03 Jakub Jelinek <jakub@redhat.com>
PR target/124315
* config/i386/sse.md (avx512f_vmfmadd_<mode>_mask3<round_name>,
avx512f_vmfmsub_<mode>_mask3<round_name>,
avx512f_vmfnmadd_<mode>_mask3<round_name>,
avx512f_vmfnmsub_<mode>_mask3<round_name>): Use %<iptr>1 instead of
%<iptr>3 in -masm=intel syntax.
2026-03-03 Jakub Jelinek <jakub@redhat.com>
PR target/124335
* config/i386/sse.md (*avx512f_load<mode>_mask): Use %{%3%} instead of
%{3%} for -masm=intel syntax.
2026-03-03 Jakub Jelinek <jakub@redhat.com>
* config/i386/sse.md (avx512fp16_mov<mode>): Rename pattern to...
(*avx512fp16_mov<mode>): ... this.
2026-03-02 Sandra Loosemore <sloosemore@baylibre.com>
PR c++/102397
* doc/extend.texi (Attributes): Explicitly say that all attributes
work in both syntaxes and examples may show either form.
(Common Attributes): Convert some examples to use the new syntax.
2026-03-02 Filip Kastl <fkastl@suse.cz>
PR target/123926
* config/sparc/sparc.h (HAVE_AS_TLS): Default to 0.
2026-03-02 Alfie Richards <alfie.richards@arm.com>
PR target/124167
* attribs.cc (make_dispatcher_decl): Change node->definition
to inherit from the node its called on.
* ipa.cc (remote_unreachable_nodes): Move FMV logic out of
(!in_boundary_p) if block.
2026-03-02 Cupertino Miranda <cupertino.miranda@oracle.com>
PR target/113453
* config/bpf/bpf-protos.h (bpf_output_call): Change prototype.
* config/bpf/bpf.cc (bpf_output_call): Change to adapt operands
and return
the instruction template instead of immediately emit asm and
not allow proper final expected execution flow.
(bpf_output_line_info): Add function to introduce line info
entries in respective structures
(bpf_asm_out_unwind_emit): Add function as hook to
TARGET_ASM_UNWIND_EMIT. This hook is called before any
instruction is emitted.
* config/bpf/bpf.md: Change calls to bpf_output_call.
* config/bpf/btfext-out.cc (struct btf_ext_lineinfo): Add fields
to struct.
(bpf_create_lineinfo, btf_add_line_info_for): Add support
function to insert line_info data in respective structures.
(output_btfext_line_info): Function to emit line_info data in
.BTF.ext section.
(btf_ext_output): Call output_btfext_line_info.
* config/bpf/btfext-out.h: Add prototype for
btf_add_line_info_for.
2026-03-02 Jakub Jelinek <jakub@redhat.com>
PR target/124294
* config/i386/sse.md (avx512fp16_mov<mode>): Fix ordering of operands
for -masm=intel for the avx10_2 alternative. Fix up indentation in
the insn condition.
(vec_set<mode>_0): Fix comment typo, higer -> higher.
2026-03-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR target/57261
* configure.ac (gcc_cv_ld_as_needed) <i?86-*-solaris2* |
x86_64-*-solaris2*>: Don't disable.
* configure: Regenerate.
2026-03-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (solaris_ld): New check.
Test solaris_ld instead of gnu_ld_flag.
* configure: Regenerate.
* config.in: Regenerate.
* config/i386/sol2.h: Switch to HAVE_SOLARIS_LD.
* config/sol2.h: Likewise.
* config/sparc/sol2.h: Likewise.
* config/sparc/sparc.md: Likewise.
2026-03-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (solaris_as): New check.
* configure: Regenerate.
* config.in: Regenerate.
* config/i386/i386.cc: Switch to HAVE_SOLARIS_AS.
* config/i386/sol2.h: Likewise.
* config/sol2.h: Likewise.
* config/sparc/sol2.h: Likewise.
* config/sparc/sparc.cc: Likewise.
* config/sparc/sparc.md: Likewise.
2026-02-28 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR tree-optimization/90036
* tree-ssa-dom.cc (back_propagate_equivalences): Accept new
argument for available expression stack. Lookup equivalences
in the expression hash table too. If an expression hash a
known constant value, record it and recurse.
(record_temporary_equivalences): Back propagate for a subset of
edge equivalences.
2026-02-28 David Malcolm <dmalcolm@redhat.com>
PR target/124094
* config/aarch64/aarch64-generate-json-tuning-routines.py
(generate_field_code): Add "ctxt, " arg to function call when
operation is "parse".
(generate_function): Add "gcc_json_context &ctxt, " param to
function decl when operation is "parse".
* config/aarch64/aarch64-json-tunings-parser-generated.inc:
Regenerate, passing around a gcc_json_context &.
* config/aarch64/aarch64-json-tunings-parser.cc: Include
"json-diagnostic.h".
(WARNING_OPT) New macro.
(PARSE_INTEGER_FIELD): Add "ctxt" param and pass it around.
(PARSE_UNSIGNED_INTEGER_FIELD): Likewise.
(PARSE_BOOLEAN_FIELD): Likewise.
(PARSE_STRING_FIELD): Likewise.
(PARSE_OBJECT): Likewise.
(PARSE_ARRAY_FIELD): Likewise.
(PARSE_ENUM_FIELD): Likewise.
(parse_func_type): Likewise.
(parse_object_helper): Likewise. Use json_error rather than error.
(inform_about_wrong_kind_of_json_value): New.
(extract_string): Add "ctxt" param. Replace "warning" with a pair
of calls to json_warning and
inform_about_wrong_kind_of_json_value, tweaking wording
accordingly.
(extract_integer): Likewise.
(extract_unsigned_integer): Likewise.
(parse_enum_field): Likewise.
(validate_and_traverse): Replace "warning" and "error" with
"json_warning" and "json_error".
(check_version_compatibility): Use WARNING_OPT. Add
auto_diagnostic_group to group the error and note.
(aarch64_load_tuning_params_from_json_string): Add "js_filename"
param. Use gcc_json_context to capture location info. Use it
when reporting errors to get file/line/column info. Replace check
on root being non-null with assertion, as this is guaranteed if
error is non-null. Replace warning with json_warning.
(aarch64_load_tuning_params_from_json): Pass data_filename to
aarch64_load_tuning_params_from_json_string for use when reporting
diagnostics.
(selftest::test_json_integers): Add a placeholder filename.
(selftest::test_json_boolean): Likewise.
(selftest::test_json_strings): Likewise.
(selftest::test_json_enums): Likewise.
2026-02-28 David Malcolm <dmalcolm@redhat.com>
* Makefile.in (OBJS-libcommon): Add json-diagnostic.o.
* diagnostics/client-data-hooks.h
(class client_data_hooks_decorator): New.
* diagnostics/context.cc (context::set_client_data_hooks): Return
the old hooks.
* diagnostics/context.h (context::set_client_data_hooks): Update
decl likewise.
* json-diagnostic.cc: New file.
* json-diagnostic.h: New file.
2026-02-28 David Malcolm <dmalcolm@redhat.com>
* config/aarch64/aarch64-json-tunings-parser.cc: Define
INCLUDE_MAP.
* json-parsing.cc: Likewise.
* json-parsing.h (class simple_location_map): New class, moved and
renamed from...
* libsarifreplay.cc (class replayer_location_map): ...here.
(sarif_replayer::m_json_location_map): Update for renaming of
class.
2026-02-28 David Malcolm <dmalcolm@redhat.com>
* Makefile.in (OBJS-libcommon):
Add diagnostics/physical-location-maker.o.
* diagnostics/physical-location-maker.cc: New file, adapted from
material in libgdiagnostics.cc.
* diagnostics/physical-location-maker.h: New file, adapted from
material in libgdiagnostics.cc.
* libgdiagnostics.cc: Include
"diagnostics/physical-location-maker.h".
(diagnostic_manager::diagnostic_manager): Initialize
m_phys_loc_maker.
(diagnostic_manager::new_location_from_file_and_line): Split out
into physical_location_maker.
(diagnostic_manager::new_location_from_file_line_column):
Likewise.
(diagnostic_manager::ensure_linemap_for_file_and_line): Likewise.
(diagnostic_manager::m_phys_loc_maker): New field.
2026-02-28 David Malcolm <dmalcolm@redhat.com>
* diagnostics/html-sink.cc
(html_builder::make_element_for_diagnostic): Update for logical
location strings being returned as label_text rather than
const char *.
* diagnostics/logical-locations.h
(logical_locations::manager::get_short_name): Return label_text
rather than const char *.
(logical_locations::manager::get_name_with_scope): Likewise.
(logical_locations::manager::get_internal_name): Likewise.
* diagnostics/sarif-sink.cc
(sarif_builder::ensure_sarif_logical_location_for): Update for
logical location strings being returned as label_text rather than
const char *.
(sarif_builder::make_minimal_sarif_logical_location): Likewise.
* diagnostics/selftest-logical-locations.cc
(test_manager::get_short_name): Likewise.
(test_manager::get_name_with_scope): Likewise.
(test_manager::get_internal_name): Likewise.
(selftest_logical_locations_cc_tests): Likewise.
* diagnostics/selftest-logical-locations.h
(test_manager::get_short_name): Likewise.
(test_manager::get_name_with_scope): Likewise.
(test_manager::get_internal_name): Likewise.
* diagnostics/state-graphs-to-dot.cc
(state_diagram::on_node_in_table): Likewise.
* libgdiagnostics.cc
(impl_logical_location_manager::get_short_name): Likewise.
(impl_logical_location_manager::get_name_with_scope): Likewise.
(impl_logical_location_manager::get_internal_name): Likewise.
* tree-logical-location.cc
(tree_logical_location_manager::get_short_name): Likewise.
(tree_logical_location_manager::get_name_with_scope): Likewise.
(tree_logical_location_manager::get_internal_name): Likewise.
* tree-logical-location.h
(tree_logical_location_manager::get_short_name): Likewise.
(tree_logical_location_manager::get_name_with_scope): Likewise.
(tree_logical_location_manager::get_internal_name): Likewise.
2026-02-28 Sandra Loosemore <sloosemore@baylibre.com>
PR c/87591
* doc/extend.texi (Attributes): Document __attribute keyword.
(Attribute Syntax): Here too.
2026-02-28 Sandra Loosemore <sloosemore@baylibre.com>
* doc/extend.texi (Attributes): Rename the node "GNU Attribute
Syntax" node back to "Attribute Syntax"; fix references. Add
@anchor for sections recently merged away at the new location of
the material they used to contain.
2026-02-28 Kwok Cheung Yeung <kcyeung@baylibre.com>
PR middle-end/113436
* omp-low.cc (lower_omp_target): Merge branches for allocating memory
for private clauses. Add handling for references when allocator
clause not specified.
2026-02-27 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/124142
* tree-vect-data-refs.cc (vect_analyze_early_break_dependences):
For early break require masking when operation can trap.
2026-02-27 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR tree-optimization/90036
* tree-ssa-scopedtables.cc (avail_exprs_stack::record_cond): Always
record the new hash table entry.
2026-02-27 Xi Ruoyao <xry111@xry111.site>
PR middle-end/124280
* optabs.cc (expand_vector_broadcast): Allow broadcasting QImode
to BImode vector.
2026-02-27 Vladimir N. Makarov <vmakarov@redhat.com>
Revert:
2026-02-26 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/115042
* lra-int.h (lra_constraint_insn_stack_clear): New prototype.
* lra.cc (lra_constraint_insn_stack2): New vector.
(lra_constraint_insn_stack_clear): New function.
(lra): Initialize/finalize lra_constraint_insn_stack2.
* lra-constraints.cc (lra_constraints): Use
lra_constraint_insn_stack_clear to postpone processing new reload
insns.
2026-02-27 Martin Jambor <mjambor@suse.cz>
PR ipa/123229
* ipa-prop.cc (update_indirect_edges_after_inlining): Reset parameter
index associated with an indirect edge if the inlined edge does not
have any jump functions.
2026-02-27 Soumya AR <soumyaa@nvidia.com>
* config/aarch64/aarch64-json-tunings-parser.cc (parse_object_helper):
Zero-initialize objects that are NULL in the base tunings, if provided
in JSON tunings.
* config/aarch64/aarch64-protos.h (struct sve_vec_cost): Add default
constructor.
(struct aarch64_simd_vec_issue_info): Likewise.
(struct aarch64_sve_vec_issue_info): Likewise.
2026-02-27 Martin Jambor <mjambor@suse.cz>
PR ipa/123629
* ipa-polymorphic-call.cc
(ipa_polymorphic_call_context::meet_with): When an outer context is
NULL, call make_speculative on the other one.
2026-02-27 Tamar Christina <tamar.christina@arm.com>
PR target/124162
* config/aarch64/aarch64-sve.md (cond_vec_cbranch_any,
cond_vec_cbranch_all): Drop partial vectors support.
2026-02-27 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/117935
* tree-ssa-phiopt.cc (contains_hot_cold_predict): New function.
(match_simplify_replacement): Return early if early_p and one of
the middle bb(s) have a hot/cold predict statement.
2026-02-26 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/115042
* lra-int.h (lra_constraint_insn_stack_clear): New prototype.
* lra.cc (lra_constraint_insn_stack2): New vector.
(lra_constraint_insn_stack_clear): New function.
(lra): Initialize/finalize lra_constraint_insn_stack2.
* lra-constraints.cc (lra_constraints): Use
lra_constraint_insn_stack_clear to postpone processing new reload
insns.
2026-02-26 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/122448
* config/riscv/riscv-vsetvl.cc (compute_reaching_defintion):
Rename...
(compute_reaching_definition): ...To this.
(pre_vsetvl::compute_vsetvl_def_data): Compute reaching
definitions for vsetvl VL -> vsetvl AVL.
(pre_vsetvl::compute_transparent): Include VL uses.
(pre_vsetvl::fuse_local_vsetvl_info): Initialize m_reg_use_loc.
(pre_vsetvl::earliest_fuse_vsetvl_info): Don't hoist if any
successor would use VL.
2026-02-26 Xi Ruoyao <xry111@xry111.site>
PR middle-end/124250
PR target/123807
* optabs.cc (expand_vector_broadcast): Add a checking assert to
verify the precondition about the input modes.
(expand_binop): Extend the shift amount if it's narrower than
the element of the shifted vector.
2026-02-26 Roger Sayle <roger@nextmovesoftware.com>
PR target/124194
* config/i386/sse.md (*<avx512>_cmp<mode>3_dup_op): Also return
CONSTM1_RTX for the case cmp_imm == 7 (predicate TRUE).
2026-02-26 Roger Sayle <roger@nextmovesoftware.com>
PR c/119651
PR c/123472
* fold-const.cc (tree_nonzero_bits): Rename the original as a
static function taking an additional precision parameter. Make
this implementation robust to error_mark_node. Preserve the
original API by checking for error_operand_p before invoking the
static helper function.
2026-02-26 H.J. Lu <hjl.tools@gmail.com>
PR target/119979
PR target/120888
* targhooks.cc (default_promote_function_mode_sign_extend): New.
* targhooks.h (default_promote_function_mode_sign_extend):
Likewise.
* config/mcore/mcore.cc (TARGET_PROMOTE_FUNCTION_MODE): Use
default_promote_function_mode_sign_extend.
(TARGET_PROMOTE_PROTOTYPES): Removed.
* config/xtensa/xtensa.cc (xtensa_promote_function_mode): Removed.
(TARGET_PROMOTE_FUNCTION_MODE): Use
default_promote_function_mode_sign_extend.
2026-02-25 Philipp Tomsich <philipp.tomsich@vrull.eu>
* avoid-store-forwarding.cc
(store_forwarding_analyzer::process_store_forwarding): Use
auto_sbitmap for forwarded_bytes to ensure it is freed on all
return paths.
2026-02-25 Philipp Tomsich <philipp.tomsich@vrull.eu>
* avoid-store-forwarding.cc
(store_forwarding_analyzer::update_stats): Use stats_sf_avoided
for the "avoided" counter.
2026-02-25 Philipp Tomsich <philipp.tomsich@vrull.eu>
* avoid-store-forwarding.cc: Move config.h before
avoid-store-forwarding.h; place avoid-store-forwarding.h
after rtl.h; remove unused cselib.h include.
* avoid-store-forwarding.h: Remove includes of config.h,
system.h, coretypes.h, backend.h, rtl.h.
2026-02-25 Cupertino Miranda <cupertino.miranda@oracle.com>
PR target/120241
* config/bpf/core-builtins.cc
(is_attr_preserve_access): Correct for pointer types.
(maybe_get_base_for_field_expr, core_access_index_map,
core_access_clean, core_is_access_index, core_mark_as_access_index):
Remove.
(make_gimple_core_safe_access_index): Remove function.
(struct walker_data): New struct to pass data to tree walker.
(callback_should_do_core_access, should_do_core_access): Add
function to identify expressions that should not be converted to
CO-RE.
(core_make_builtins): Add callback tree walker function to
convert expressions to CO-RE.
(callback_find_next_split_location, core_should_split_expr,
find_next_split_location, gimple_core_early_split_expr): Add
function to split expressions in CO-RE and non-CO-RE
expressions.
(execute_lower_bpf_core): Adapt to new code.
* config/bpf/bpf.opt: Add option Wco-re.
* doc/invoke.texi: Add documentation for Wco-re.
2026-02-25 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/110091
* ipa-split.cc (split_function): Find the bb
which is used for return in the outlined function.
Move the clobbers that are at the end of that bb
to be after the new call.
2026-02-25 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/110091
* ipa-split.cc (split_function): Split after
the clobbers/debug stmts rather than after the labels.
2026-02-25 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.md (spaceshipsi4):
New RTL generation pattern.
2026-02-25 Richard Biener <rguenther@suse.de>
PR target/120234
* config/i386/i386.cc (ix86_vector_costs::add_stmt_cost):
For constructor elements always look through a conversion.
Rewrite load and vector extraction matching to be more obvious.
Allow arbitrary conversions from the vector extract to elide
costing of a gpr<->xmm move.
2026-02-25 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/123285
* config/aarch64/aarch64-early-ra.cc (early_ra::form_chains): Process clobbers
and ABI clobbers before starting to form the chain.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR other/88472
* Makefile.in (ATTR_URLS_HTML_DEPS): Point at new index file.
* attr-urls.def: Regenerated.
* gcc-attribute-urlifier.cc (test_attribute_urlifier): Adjust
URLs to match formatting in the new index.
* regenerate-attr-urls.py (parse_html_line_attribute_index):
Update pattern to match formatting in the new combined index.
Don't segregate entries into separate function/variable/etc
arrays.
(INDEX_REL_PATH): Point at the new index file.
(class TestParsingIndex): Update patterns in self-tests to match
the current formatting.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR other/88472
* doc/extend.texi (Common Attributes): Change @cindex entries for
attributes to @atindex. Add some additional @cindex entries.
(AArch64 Attributes): Likewise.
(AMD GCN Attributes): Likewise.
(ARC Attributes): Likewise.
(ARM Attributes): Likewise.
(AVR Attributes): Likewise.
(Blackfin Attributes): Likewise.
(BPF Attributes): Likewise.
(C-SKY Attributes): Likewise.
(Epiphany Attributes): Likewise.
(H8/300 Attributes): Likewise.
(IA-64 Attributes): Likewise.
(LoongArch Attributes): Likewise.
(M32C Attributes): Likewise.
(M32R/D Attributes): Likewise.
(m68k Attributes): Likewise.
(MicroBlaze Attributes): Likewise.
(Microsoft Windows Attributes): Likewise.
(MIPS Attributes): Likewise.
(MSP430 Attributes): Likewise.
(NDS32 Attributes): Likewise.
(Nvidia PTX Attributes): Likewise.
(PowerPC Attributes): Likewise.
(RISC-V Attributes): Likewise.
(RL78 Attributes): Likewise.
(RX Attributes): Likewise.
(S/390 Attributes): Likewise.
(SH Attributes): Likewise.
(Symbian OS Attributes): Likewise.
(V850 Attributes): Likewise.
(Visium Attributes): Likewise.
(x86 Attributes): Likewise.
(Xstormy16 Attributes): Likewise.
(C++ Attributes): Likewise.
* doc/gcc.texi: Define a new "at" index for attributes.
(Attribute Index): New appendix.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR other/88472
* doc/extend.texi (Common Attributes): Document the "naked"
attribute here.
(ARC Attributes): Delete entry for "naked".
(ARM Attributes): Likewise.
(AVR Attributes): Likewise.
(BPF Attributes): Likewise.
(C-SKY Attributes): Likewise.
(MCORE Attributes): Delete entire section since "naked" was
the only thing listed.
(MSP430 Attributes): Delete entry for "naked".
(NDS32 Attributes): Likewise.
(RISC-V Attributes): Likewise.
(RL78 Attributes): Likewise.
(RX Attributes): Likewise.
(x86 Attributes): Likewise.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR other/88472
* doc/extend.texi (Common Attributes): Consolidate documentation
for "cold" and "hot" attributes, including the C++-specific
behavior.
(C++ Attributes): Likewise, just point to the main entry.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
* doc/extend.texi (RISC-V Attributes): Format and index options
for the "target" attribute consistently with the documentation
for other back ends.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
* doc/extend.texi (Common Attributes): Add LoongArch to lists of
targets supporting target_clones and target_version.
(LoongArch Attributes): Copy-edit for grammar and markup. Wrap
excessively long lines. Rearrange the introductory material for
the target attribute. Correct index entries for target attribute
options.
(Function Multiversioning): Add LoongArch to list of targets
supporting this feature. Fix nearby typo.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
* doc/extend.texi (AArch64 Attributes): Reorganize material in this
section, correct terminology and formatting.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
* doc/extend.texi (Attributes): General copy-editing.
(C++ Attributes): Likewise.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR other/88472
* doc/extend.texi (Attributes): Start each attribute's
documentation with a short paragraph describing what it applies to.
(C++ Attributes): Likewise.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR other/88472
* doc/extend.texi (Attributes): Merge respective subsections of
Function Attributes, Variable Attributes, Type Attributes,
Label Attributes, Enumerator Attributes, and Statement Attributes
into new sections Common Attributes and Target-Specific Attributes.
Fix cross-references.
* doc/invoke.texi: Fix cross-references.
* doc/trouble.texi: Likewise.
2026-02-24 Sandra Loosemore <sloosemore@baylibre.com>
PR c++/102397
* doc/extend.texi (Attributes): Rewrite and expand discussion
of standard vs legacy syntax, with several examples.
(Attribute Syntax): Rename section to...
(GNU Attribute Syntax): ...this. Prune discussion of standard
attribute syntax. Fix cross-references.
2026-02-24 Robin Dapp <rdapp@oss.qualcomm.com>
* config/riscv/vector.md: Change 'X' to 'r' in _lra insns.
2026-02-24 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/124147
* config/riscv/autovec.md: Work around fractional-LMUL modes for
TARGET_XTHEADVECTOR.
* config/riscv/riscv-protos.h (get_m1_mode): Export.
* config/riscv/riscv-v.cc (get_m1_mode): Allow to get a VLS m1
vector.
2026-02-24 Robin Dapp <rdapp@oss.qualcomm.com>
PR rtl-optimization/123381
* lra-constraints.cc (process_alt_operands): Detect cycles in
three-operand moves with clobber.
(curr_insn_transform): Don't write back a scratch operand.
2026-02-24 Wilco Dijkstra <wilco.dijkstra@arm.com>
PR target/121240
* config/aarch64/aarch64-simd.md (mov<mode>): Expand vector constants
early.
* config/aarch64/aarch64.cc (aarch64_select_rtx_section): Force
vector immediates <= 16 bytes to constdata.
2026-02-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/123117
PR target/120234
* tree-ssa-forwprop.cc (simplify_vector_constructor): Fix
sign conversion check guarding unpacking.
2026-02-24 Martin Jambor <mjambor@suse.cz>
PR ipa/123629
* ipa-cp.cc (ipcp_val_replacement_ok_p): Also verify that the
vector of known contexts has sufficient length.
2026-02-23 Sandra Loosemore <sloosemore@baylibre.com>
PR translation/118988
* params.opt (-param=cycle-accurate-model=): Fix wording of help
string.
(-param=phiopt-factor-max-stmts-live=): Likewise.
2026-02-23 Sandra Loosemore <sloosemore@baylibre.com>
* config/gcn/gcn.md (addsi3): Disparage vector alternative.
(addptrdi3): Reverse order of vector and scalar alternatives
to prefer the latter.
(subsi3): Disparage vector alternatives.
(mulsi3): Likewise.
(muldi3): Likewise.
(bitunop <expander>si2): Likewise.
(vec_and_scalar_com <expander>si3): Likewise.
(vec_and_scalar_nocom <expander>si3): Likewise.
(one_cmpldi2): Likewise.
(vec_and_scalar64_com <expander>di3): Likwise.
(vec_and_scalar64_nocom <expander>di3): Likwise.
2026-02-23 Paul-Antoine Arras <parras@baylibre.com>
PR fortran/120505
* gimplify.cc (omp_accumulate_sibling_list): When the containing struct
is a Fortran array descriptor, sort mapped components by offset.
2026-02-23 Paul-Antoine Arras <parras@baylibre.com>
PR fortran/120505
* gimplify.cc (omp_mapped_by_containing_struct): Handle Fortran array
descriptors.
(omp_build_struct_sibling_lists): Allow attach_detach bias to be
adjusted on non-target regions.
(gimplify_adjust_omp_clauses): Remove GIMPLE-only nodes.
* tree-pretty-print.cc (dump_omp_clause): Handle
OMP_CLAUSE_MAP_SIZE_NEEDS_ADJUSTMENT and OMP_CLAUSE_MAP_GIMPLE_ONLY.
* tree.h (OMP_CLAUSE_MAP_SIZE_NEEDS_ADJUSTMENT,
OMP_CLAUSE_MAP_GIMPLE_ONLY): Define.
2026-02-23 Alice Carlotti <alice.carlotti@arm.com>
* config/aarch64/aarch64.cc (aarch64_override_options_internal):
Remove +sme+nosve sorry, and remove SVE from nosme workaround.
* doc/invoke.texi: Remove SVE2 requirement from +sme.
2026-02-23 Alice Carlotti <alice.carlotti@arm.com>
* config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins):
Replace TARGET_SVE{2} with explicit feature flag checks.
* config/aarch64/aarch64.cc
(aarch64_adjust_generic_arch_tuning): Add SME to SVE2 check.
* config/aarch64/aarch64.h (TARGET_SVE): Adjust condition.
(TARGET_SVE2): Ditto.
2026-02-23 Alice Carlotti <alice.carlotti@arm.com>
* config/aarch64/aarch64-sme.md (UNSPEC_GET_CURRENT_VG): New
enum value.
(aarch64_get_current_vg): New insn.
* config/aarch64/aarch64.cc (aarch64_save_callee_saves): Use
__arm_get_current_vg if cntd is unavailable.
2026-02-22 Roger Sayle <roger@nextmovesoftware.com>
PR c/123716
* tree.cc (tree_nop_conversion_p): Move sanity checks on
inner_type to here...
(tree_nop_conversion): ... from here.
2026-02-22 Nathaniel Shead <nathanieloshead@gmail.com>
PR c++/120974
* gcc.cc (join_spec_func): Escape special characters.
2026-02-21 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.cc (constantsynth_pass1):
Add the case where the assignment destination is a stack pointer
to the exclusion criteria for processing.
2026-02-21 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR rtl-optimization/123994
* rtl-ssa/changes.cc (function_info::verify_insn_changes): Bullet
proof loop to not fault if we run off the end of the insn chain.
2026-02-21 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/124147
* config/riscv/riscv.cc (riscv_same_function_versions): Use nullptr_t rather
than UNKNOWN_LOCATION for pointer argument.
2026-02-20 Kwok Cheung Yeung <kcyeung@baylibre.com>
PR middle-end/113436
* omp-low.cc (omp_lower_target): Do not check for variable-length
variables in private clauses by reference when allocating memory.
2026-02-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/124068
* tree-vect-patterns.cc (target_has_vecop_for_code): Move
earlier, add defaulted optab_subtype parameter.
(vect_recog_over_widening_pattern): Check that the target
supports the narrowed operation before committing to the
pattern.
2026-02-20 Martin Jambor <mjambor@suse.cz>
PR ipa/122856
* ipa-cp.cc (self_recursive_pass_through_p): Test jump function type first.
(self_recursive_ancestor_p): New function.
(find_scalar_values_for_callers_subset): Test also for self-recursive
ancestor jump functions.
(push_agg_values_for_index_from_edge): Likewise.
2026-02-20 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/121103
* gimple-fold.cc (gimple_fold_call): Don't simplify
noreturn functions.
* tree-ssa-dse.cc (dse_optimize_stmt): Don't handle
calls to noreturn functions.
2026-02-19 jlaw <jeffreyalaw@gmail.com>
PR tree-optimization/124108
* match.pd (reassociating XOR to expose rotations): Check
type_has_mode_precision_p before simplifying.
2026-02-19 Jakub Jelinek <jakub@redhat.com>
* config/i386/i386.cc (avx_vpermilp_parallel): Use IN_RANGE
macro.
2026-02-19 Pan Li <pan2.li@intel.com>
* config/riscv/autovec-opt.md (*literal_v<ieee_fmaxmin_op>_vf_<mode>):
Add new pattern for vfmax/min combine to fx.
2026-02-18 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/116053
* regcprop.cc (copyprop_hardreg_forward_1): Use delete_insn_and_edges
instead of delete_insn.
2026-02-18 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/120169
* lra-int.h (lra_process_new_insns): Modify the prototype.
* lra.cc (lra_process_new_insns): Add arg fixup_reg_args_size with
implicit value. Move REG_ARGS_SIZE note if necessary.
* lra-constraints.cc (curr_insn_transform): Pass the new arg value.
2026-02-18 Richard Biener <rguenther@suse.de>
PR target/123137
* config/i386/i386-features.cc (ix86_emit_tls_call): Improve
local FLAGS_REG liveness calculation.
2026-02-18 Jakub Jelinek <jakub@redhat.com>
PR target/124138
* config/i386/i386.cc (avx_vpermilp_parallel): Verify
ipar[2] and ipar[3] aren't larger than 3.
2026-02-18 H.J. Lu <hjl.tools@gmail.com>
PR target/124098
* config/i386/i386.cc (ix86_access_stack_p): New.
(ix86_find_max_used_stack_alignment): Update stack alignment only
if stack is used.
2026-02-17 H.J. Lu <hjl.tools@gmail.com>
PR target/124136
* config/i386/i386-features.cc (ix86_check_flags_reg): Don't
mark clobbered FLAGS_REG as live.
2026-02-17 Richard Earnshaw <rearnsha@arm.com>
PR target/124134
* config/arm/arm.md (movsfcc): FAIL if using restricted IT
blocks and we lack VSEL.
(movdfcc): Likewise.
2026-02-17 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/124048
* config/riscv/zicond.md (conditional AND patterns): Fix missed
flipping the condition's test in RTL output.
2026-02-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/124130
* tree-inline.cc (copy_edges_for_bb): Fixup noreturn calls
with abnormal edge source.
2026-02-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/124132
* tree-ssa-loop-split.cc (compute_new_first_bound): Fix
bound difference computation.
2026-02-17 Jakub Jelinek <jakub@redhat.com>
PR target/120233
* gimple-ssa-store-merging.cc (find_bswap_or_nop_2): New function.
(find_bswap_or_nop): Move CONSTRUCTOR handling to above function,
call it instead of find_bswap_or_nop_1.
(bswap_replace): Handle VEC_PACK_TRUNC_EXPR like CONSTRUCTOR.
(maybe_optimize_vector_constructor): Likewise.
(pass_optimize_bswap::execute): Likewise.
(get_status_for_store_merging): Likewise.
(pass_store_merging::execute): Likewise.
2026-02-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR libstdc++/113450
PR libstdc++/123176
* config/sol2.h (INT8_TYPE): Change to signed char.
(INT_LEAST8_TYPE): Likewise.
(INT_FAST8_TYPE): Likewise.
2026-02-15 Iain Sandoe <iain@sandoe.co.uk>
* json.cc (pointer::token::print): Cast the value to pp_scalar
with (fmt_size_t).
2026-02-15 Jan Hubicka <hubicka@ucw.cz>
* ipa-devirt.cc (ipa_devirt): Improve statistics for multi-target
devirtualization; do not simple-call devirtualize already devirtualized calls.
2026-02-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac <sparc*-*-*> (gcc_cv_as_sparc_fmaf): Remove.
(gcc_cv_as_sparc_sparc4): Remove.
(gcc_cv_as_sparc_sparc): Remove.
(gcc_cv_as_sparc_sparc6): Remove.
* configure: Regenerate.
* config.in: Regenerate.
* config/sparc/sparc.h (AS_NIAGARA3_FLAG) Remove. Replace uses by
definition.
(AS_NIAGARA4_FLAG): Likewise.
(AS_NIAGARA7_FLAG): Likewise.
(AS_M8_FLAG): Likewise.
* config/sparc/sol2.h [!HAVE_AS_SPARC4]: Remove.
(AS_SPARC32_FLAG): Remove.
(AS_SPARC64_FLAG): Remove.
(AS_NIAGARA3_FLAG) Replace uses by definition.
(AS_NIAGARA4_FLAG): Likewise.
(AS_NIAGARA7_FLAG): Likewise.
(AS_M8_FLAG): Likewise.
* config/sparc/sparc.cc (sparc_option_override):
[!HAVE_AS_FMAF_HPC_VIS3]: Remove.
[!HAVE_AS_SPARC4]: Likewise.
[!HAVE_AS_SPARC5_VIS4]: Likewise.
[!HAVE_AS_SPARC6]: Likewise.
2026-02-15 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/124099
* tree-ssa-forwprop.cc (optimize_agr_copyprop_return): Don't do anything
if the return is already result decl or a deference of result decl.
Also reject non local var decls.
2026-02-14 Jakub Jelinek <jakub@redhat.com>
PR cobol/122839
* doc/install.texi (COBOL-Specific Options): New.
2026-02-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac <sparc*-*-*> (gcc_cv_as_sparc_gotdata_op): Remove.
* configure: Regenerate.
* config.in: Regenerate.
* config/sparc/sparc.md [!HAVE_AS_SPARC_GOTDATA_OP]: Remove.
2026-02-14 Kalvis Duckmanton <kalvisd@gmail.com>
PR target/112400
* config/vax/vax.md (casesi1): Wrap naked operand 1 with a USE
where used with the insn split to.
(*casesi1): Likewise naked incoming operand 1.
2026-02-14 Maciej W. Rozycki <macro@orcam.me.uk>
* config/vax/vax.cc (nonindexed_address_p): Move incoming RTX's
operand 0 access to the actual use places.
2026-02-14 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/124086
* tree-complex.cc (extract_component): Extend the check
for ssa names for VCE to include invariants.
2026-02-13 David Malcolm <dmalcolm@redhat.com>
* json-parsing.cc (selftest::assert_json_pointer_eq): New.
(ASSERT_JSON_POINTER_EQ): New.
(selftest::test_parse_object): Add tests of JSON pointer.
(selftest::test_pointer_escaping): New test.
(selftest::json_parser_cc_tests): Call it.
* json.cc (json::pointer::token::print): New.
(json::value::print_pointer): New.
* json.h (json::pointer::token::print): New decl.
(json::value::print_pointer): New decl.
* libsarifreplay.cc: Include pretty-print.h.
(make_logical_location_from_jv): Use
json::pointer::token::print for short_name.
2026-02-13 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/124079
* lra-constraints.cc (get_matching_reload_reg_subreg): Add new arg
rclass. Use another condition to use lowpart_subreg. Use lra_constraint_offset
to calculate the subreg offset.
(get_reload_reg, match_reload): Pass the new arg.
2026-02-13 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/95825
* tree-ssa-forwprop.cc (optimize_agr_copyprop_return): New function.
(optimize_agr_copyprop): Call optimize_agr_copyprop_return
for return statements.
2026-02-13 David Malcolm <dmalcolm@redhat.com>
PR diagnostics/124014
* diagnostics/html-sink.cc (html_builder::get_logical_loc_mgr):
New.
(html_builder::m_logical_loc_mgr): Drop field.
(html_builder::html_builder): Drop initialization of
m_logical_loc_mgr.
(html_builder::maybe_make_state_diagram): Use get_logical_loc_mgr
rather than m_logical_loc_mgr.
(html_builder::make_element_for_diagnostic): Likewise.
2026-02-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/99959
* tree-sra.cc (create_access_replacement): Guard DECL_NONLOCAL_FRAME
access.
2026-02-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/99959
* tree-sra.cc (create_access_replacement): Always create
debug expressions for DECL_NONLOCAL_FRAME bases.
2026-02-13 Dhruv Chawla <dhruvc@nvidia.com>
* Makefile.in (all.fda): Bump profile_merger gcov_version to 3.
2026-02-12 Hans-Peter Nilsson <hp@axis.com>
* config/cris/cris.cc (cris_reduce_compare): Add forcing the first
operand to be a register, unless the second operand is 0, to scope.
* config/cris/cris.md ("*cstore<mode><code>4")
("*cbranch<mode><code>4"): Add guards to condition, for either operand
to be a register unless the last operand is zero.
2026-02-12 Hans-Peter Nilsson <hp@axis.com>
* config/cris/cris.md (BWDSF): New mode_iterator replacing SISF.
All callers changed.
("*movhi_internal<setcc><setnz><setnzvc>"): Anonymized from
"<acc><anz><anzvc>movhi<setcc><setnz><setnzvc>" to make it a
match-only pattern. Add conditions to guard from source and
destination both being memory operands.
("*movstricthi_internal", "*movstrictqi_internal"): Similarly
for "movstricthi" and "movstrictqi".
("movstrict<mode>"): Add common expander for BW, forcing one operand
to be a register or source being zero.
2026-02-12 Hans-Peter Nilsson <hp@axis.com>
* config/cris/cris.md (SISF): New mode_iterator for SI and SF.
("mov<mode>"): Make "movsi" a define_expand to include SFmode by
means of the SISF iterator and adjust to also handle SFmode.
("*movsf_internal"): Anonymize "movsf"; make it a match-only pattern.
Add conditions to guard from source and destination both being memory
operands.
2026-02-12 Kwok Cheung Yeung <kcyeung@baylibre.com>
PR middle-end/113436
* omp-low.cc (is_variable_sized): Add extra is_ref argument. Check
referenced type if true.
(lower_omp_target): Call lower_private_allocate to generate code to
allocate memory for firstprivate/private clauses with allocators, and
insert code after dependent variables have been initialized.
Construct calls to free allocate memory and insert after target block.
Adjust decl values for clause variables. Copy value of firstprivate
variables to allocated memory.
2026-02-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/124062
* ifcvt.cc (noce_try_cond_arith): Check the conditional code
for UNKNOWN.
2026-02-12 Soumya AR <soumyaa@nvidia.com>
* config/aarch64/aarch64-json-schema.h: Include inherited members for
SVE vector costs.
* config/aarch64/aarch64-json-tunings-parser-generated.inc
(parse_vec_costs_sve): Regenerate.
* config/aarch64/aarch64-json-tunings-parser.cc
(aarch64_load_tuning_params_from_json_string): Clear dispatch scheduling
flag if dispatch_constraints is NULL.
* config/aarch64/aarch64-json-tunings-printer-generated.inc
(serialize_vec_costs_sve): Regenerate.
2026-02-11 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/121191
* lra-constraints.cc (get_matching_reload_reg_subreg): New.
(get_reload_reg, match_reload): Use it.
2026-02-11 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/124038
* tree-ssa-math-opts.cc (strip_nop_view_converts): Remove.
(convert_mult_to_fma): Undo stripping.
2026-02-11 Jakub Jelinek <jakub@redhat.com>
PR middle-end/124056
* cfgexpand.cc (expand_asm_stmt): If after_md_seq is non-NULL, emit
it at the start of after_rtl_seq instead of after fallthru_label.
2026-02-11 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/116600
PR middle-end/123386
* cfgrtl.cc (force_nonfallthru_and_redirect): Don't do any
asm goto adjustments early, only note in asm_goto_edge if
any labels point originally to e->dest head. After jumpblock
creation don't add an extra edge for asm_goto_edge, instead
adjust those labels pointing to former e->dest head to point
to jumpblock instead.
2026-02-10 Dimitry Andric <dimitry@andric.com>
PR libfortran/123366
* configure.ac: Move restoring of CXXFLAGS/LDFLAGS for zstd test to
the correct place.
* configure: Regenerate.
2026-02-10 Alice Carlotti <alice.carlotti@arm.com>
PR target/123624
* config/aarch64/aarch64-protos.h
(aarch64_use_simple_return_insn_p): New.
* config/aarch64/aarch64.cc
(aarch64_use_simple_return_insn_p): New, used...
* config/aarch64/aarch64.md (simple_return): ...here.
2026-02-10 Alice Carlotti <alice.carlotti@arm.com>
* config.gcc: Improve aarch64 --with-arch checks.
2026-02-10 Alfie Richards <alfie.richards@arm.com>
* tree-vect-data-refs.cc (vect_analyze_data_refs_alignment):
Update signature and comment.
* tree-vect-loop.cc (vect_analyze_loop_2): Update comment for
vect_analyze_data_refs_alignment and remove control flow.
* tree-vectorizer.h (vect_analyze_data_refs_alignment): Update
signature.
2026-02-10 Juergen Christ <jchrist@linux.ibm.com>
PR tree-optimization/122297
* tree-vect-loop.cc (vectorize_fold_left_reduction): Adjust.
(vectorizable_induction): Adjust.
(vectorizable_live_operation_1): Adjust.
(vect_get_loop_len): Provide parameter to select bias-adjusted
length.
(vect_gen_loop_len_mask): Adjust.
(vect_update_ivs_after_vectorizer_for_early_breaks): Adjust.
* tree-vect-stmts.cc (vect_get_strided_load_store_ops): Adjust.
(vectorizable_call): Adjust.
(vectorizable_operation): Adjust.
(vectorizable_store): Adjust.
(vectorizable_load): Adjust.
(vectorizable_condition): Adjust.
* tree-vectorizer.h (vect_get_loop_len): Add parameter.
2026-02-10 Kyrylo Tkachov <ktkachov@nvidia.com>
* config/aarch64/tuning_models/olympus.h (olympus_sve_vector_cost):
Set align_load_cost to 6.
2026-02-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/107690
* tree-ssa-ifcombine.cc (ifcombine_ifandif): Do not merge
possibly analyzable exit conditions.
2026-02-09 David Malcolm <dmalcolm@redhat.com>
PR diagnostics/124014
* diagnostics/sarif-sink.cc
(sarif_builder::get_logical_location_manager): Reimplement, to
eliminate m_logical_loc_mgr.
(sarif_builder::m_logical_loc_mgr): Drop field.
(sarif_builder::sarif_builder): Update for removed field.
(sarif_builder::set_any_logical_locs_arr): Likewise.
(sarif_builder::ensure_sarif_logical_location_for): Likewise.
(sarif_builder::make_minimal_sarif_logical_location): Likewise.
2026-02-09 David Faust <david.faust@oracle.com>
PR target/123556
* config/bpf/bpf.h (SLOW_BYTE_ACCESS): Set to 0, update comment.
2026-02-09 Eric Botcazou <ebotcazou@adacore.com>
PR target/80881
* attribs.cc (handle_dll_attribute): If TARGET_WIN32_TLS is 1,
issue an error if either attribute is set on a TLS variable.
2026-02-09 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR other/123841
PR target/123926
* acinclude.m4 (gcc_GAS_FLAGS): Handle non-Darwin/Solaris as cases
alike on x86 and SPARC.
* configure: Regenerate.
2026-02-09 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/123796
* lra-int.h (lra_pointer_equiv_set_add): Add prototype.
(lra_pointer_equiv_set_in, lra_finish_equiv): Ditto.
* lra.cc (lra_emit_move): Set up pointer flag of the destination
if necessary.
(lra): Call lra_finish_equiv.
* lra-constraints.cc: Include hash-set.h.
(pointer_equiv_set, lra_pointer_equiv_set_add): New.
(lra_pointer_equiv_set_in, lra_finish_equiv): New.
(get_equiv_with_elimination): Propagate pointer flag by adding to
pointer_equiv_set.
(process_addr_reg, curr_insn_transform): Ditto.
2026-02-09 Richard Biener <rguenther@suse.de>
* doc/analyzer.texi (State Tracking): Fix typo.
2026-02-09 Richard Biener <rguenther@suse.de>
PR tree-optimization/123225
* tree-vect-loop.cc (vect_analyze_loop_costing): For uncounted
loops reject not trivially profitable loops that have no
estimate on the number of scalar iterations.
2026-02-09 Richard Biener <rguenther@suse.de>
PR tree-optimization/124034
* tree-vect-stmts.cc (process_use): Never force induction
latch defs relevant when doing early break vectorization.
2026-02-09 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* doc/invoke.texi (-mconst16/-mno-const16):
Remove the clause "The CONST16 instruction is currently not a
standard option from Tensilica."
2026-02-09 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/117217
* tree-sra.cc (propagate_subaccesses_from_rhs): Do not propagate
bit-field children.
(propagate_subaccesses_from_lhs): Likewise.
2026-02-09 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/123911
* config/riscv/riscv.cc (riscv_legitimize_move): Elide nop moves to
avoid infinite recursion.
2026-02-07 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123672
* tree-ssa-forwprop.cc (recognise_vec_perm_simplify_seq): Use std::swap
instead of fetching gimple_assign_rhs{1,2} again. Change type of lanes
vector from auto_vec<unsigned int> to auto_vec<bool> and store true
instead of 1 into it. Fix comment typo and formatting fix.
(can_blend_vec_perm_simplify_seqs_p): Put end of comment on the same
line as the last sentence in it.
(calc_perm_vec_perm_simplify_seqs): Change lane_assignment type from
auto_vec<int> to auto_vec<unsigned> and store 2 + l_orig into it
instead of true. Fix comment typo and formatting fix. Set use_seq1
to line_assignment[i] < 2 instead of line_assignment[i] != 2. Replace
bogus computation of index for !use_seq with using
line_assignment[i] - 2. Set l1 to l1 % nelts and similarly for l2.
2026-02-07 Jakub Jelinek <jakub@redhat.com>
* optabs.cc (expand_vec_perm_const): Comment spelling fix,
permuation -> permutation.
* config/arm/arm.cc (arm_evpc_neon_vtbl): Likewise.
* config/loongarch/loongarch.cc (loongarch_try_expand_lsx_vshuf_const):
Comment spelling fix, permuatation -> permutation.
(loongarch_is_elem_duplicate): Likewise. Comment spelling fix,
permuation -> permutation.
2026-02-07 Richard Biener <rguenther@suse.de>
* config/i386/i386.cc (ix86_vector_costs::add_stmt_cost):
Remove double and triple accounting of GPR -> XMM moves
in construction of AVX and AVX512 vectors.
2026-02-07 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* cse.cc (invalidate_from_sets_and_clobbers): Consider any hard
register referred to by any single register constraint
potentially being clobbered.
2026-02-07 Roger Sayle <roger@nextmovesoftware.com>
PR middle-end/123826
PR tree-optimization/123958
PR c++/124002
* tree-ssa-math-opts.cc (math_opts_dom_walker::after_dom_children):
Delete code that (mis)handled conversion of pow(x,2.0) to x*x.
2026-02-07 Roger Sayle <roger@nextmovesoftware.com>
Andrew Pinski <andrew.pinski@oss.qualcomm.com>
Jeff Law <jeffrey.law@oss.qualcomm.com>
PR rtl-optimization/123833
* recog.cc (cancel_changes): Update the recog_data cache if it
holds the instruction being changed.
2026-02-06 Richard Ball <Richard.Ball@arm.com>
* config/aarch64/aarch64-builtins.cc
(enum aarch64_builtins): Add ptr and generic variants.
(aarch64_init_pcdphint_builtins): Likewise.
(aarch64_general_expand_builtin): Add ptr variant.
(aarch64_resolve_overloaded_builtin_stshh): Function to handle
overloaded atomic_store_with_stshh.
(aarch64_resolve_overloaded_builtin_general): Add call to stshh function.
* config/aarch64/aarch64-c.cc
(aarch64_resolve_overloaded_builtin): Allow fndecl to return.
* config/aarch64/arm_acle.h
(__atomic_store_with_stshh): Remove __Generic.
2026-02-06 Martin Jambor <mjambor@suse.cz>
PR ipa/106260
* ipa-cp.cc (initialize_node_lattices): Replace assert that there are
callers with handling that situation when -fno-toplevel_reorder.
2026-02-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (gnu_ld_flag): Move $gcc_cv_ld --version check into
AC_ARG_WITH(gnu-ld).
(gcc_cv_ld): Set before gnu_ld_flag.
(gas_flag): Move $gcc_cv_ld --version check into AC_ARG_WITH(gnu-ld).
(gcc_cv_as): Set before gas_flag.
* configure: Regenerate.
2026-02-06 Jakub Jelinek <jakub@redhat.com>
PR c/101312
* alias.cc (get_alias_set): Allow TYPE_CANONICAL (mv) to be
not its own TYPE_MAIN_VARIANT, as long as its TYPE_MAIN_VARIANT
has TYPE_CANONICAL equal to itself.
* tree.cc (verify_type): Likewise.
2026-02-06 Daniel Barboza <daniel.barboza@oss.qualcomm.com>
PR tree-optimization/114969
* match.pd (`(A | (convert?)(A != 0)) EQ|NE 0`): New pattern.
2026-02-06 Andrew Stubbs <ams@baylibre.com>
* config/gcn/gcn-valu.md (*mov<mode>_exec_match): Delete.
(*mov<mode>_exec_match): Likewise.
(*mov<mode>): Delete unaligned register support, and convert to new
constraint syntax.
(mov<mode>_exec): Likewise.
(@mov<mode>_sgprbase): Likewise.
* config/gcn/gcn.md (*movbi): Likewise.
2026-02-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/114274
* tree-switch-conversion.cc (switch_conversion::build_one_array):
Use UNKNOWN_LOCATION for the CSWTCH decl.
2026-02-06 Jakub Jelinek <jakub@redhat.com>
PR c++/123977
* tree.cc (build_function_type): Pass no_named_args_stdarg_p
as last argument to recursive call.
2026-02-06 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123940
* tree-ssa-math-opts.cc (convert_mult_to_fma): Check
multiplication result is an addend.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* attribs.cc: Replace CONST_CAST with const_cast<>.
* builtins.cc: Likewise.
* collect2.cc: Likewise.
* config/bpf/core-builtins.cc: Likewise.
* config/gcn/mkoffload.cc: Likewise.
* config/nvptx/mkoffload.cc: Likewise.
* config/nvptx/nvptx.cc: Likewise.
* ctfc.cc: Likewise.
* dumpfile.cc: Likewise.
* gcc.cc: Likewise.
* gcov.cc: Likewise.
* gengtype-parse.cc: Likewise.
* gengtype-state.cc: Likewise.
* gengtype.cc: Likewise.
* genoutput.cc: Likewise.
* ggc-page.cc: Likewise.
* godump.cc: Likewise.
* lto-section-in.cc: Likewise.
* lto-wrapper.cc: Likewise.
* omp-offload.cc: Likewise.
* passes.cc: Likewise.
* plugin.cc: Likewise.
* prefix.cc: Likewise.
* pretty-print.cc: Likewise.
* selftest.cc: Likewise.
* statistics.cc: Likewise.
* stringpool.cc: Likewise.
* tree.h: Likewise.
* tree-profile.cc: Likewise.
* vec.h: Likewise.
* system.h (CONST_CAST2): Remove.
(CONST_CAST): Likewise.
* tsystem.h (CONST_CAST2): Remove.
(CONST_CAST): Likewise.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* tree.h: Replace CONST_CAST2 with const_cast<>.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* attribs.cc: Replace CONST_CAST_TREE with const_cast<tree>.
* config/aarch64/aarch64.cc: Likewise.
* config/arm/arm.cc: Likewise.
* config/darwin.cc: Likewise.
* fold-const.cc: Likewise.
* gimple-expr.cc: Likewise.
* print-rtl.cc: Likewise.
* tree-object-size.cc: Likewise.
* tree.cc: Likewise.
* varasm.cc: Likewise.
* tree.h: Likewise.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* gimple.h: Replace CONST_CAST_GIMPLE with const_cast<gimple *>.
* system.h (CONST_CAST_GIMPLE): Remove.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* system.h: Remove.
* tracer.cc: Replace CONST_CAST_BB with
const_cast<basic_block>.
* tree-cfg.cc: Likewise.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* alias.cc: Replace CONST_CAST_RTX with const_cast<rtx>.
* config/i386/x86-tune-sched-bd.cc: Likewise.
* config/rs6000/rs6000.cc: Likewise.
* recog.cc: Likewise.
* sel-sched-ir.cc: Likewise.
* var-tracking.cc: Likewise.
* varasm.cc: Likewise.
* system.h (CONST_CAST_RTX): Remove.
2026-02-06 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* config/aarch64/aarch64.cc: Replace CONST_CAST_RTX_INSN with
const_cast<struct rtx_insn *>.
* rtlanal.cc: Likewise.
* sched-deps.cc: Likewise.
* system.h (CONST_CAST_RTX_INSN): Remove.
2026-02-05 David Malcolm <dmalcolm@redhat.com>
* value-range.cc (irange_bitmask::irange_bitmask): Fix typo in
comment.
* value-range.h (class vrange): Update leading comment to refer
to "subsets" rather than "ranges". Allude to the available
subclasses. Warn that the classes can be over-approximations and
thus can introduce imprecision.
(class irange_bitmask): Updating leading comment to refer to
knowledge about a "value", rather than a "range". Reword
description of MASK and VALUE to clarify implementation, and
add an example.
(class irange): Update leading comment to refer to a
"subset of possible values" rather than a "range", and
that subclasses have responsibility for storage.
(class nan_state): Rewrite leading comment.
(class frange final): Update leading comment to refer to
subsets of possible values, rather than ranges, and to
consistently use "Nan" when capitalizing.
2026-02-05 Michal Jires <mjires@suse.cz>
PR testsuite/123559
* cgraphunit.cc (check_global_declaration): Suppress OPT_Wunused.
2026-02-05 Jakub Jelinek <jakub@redhat.com>
Revert:
2026-01-28 Jakub Jelinek <jakub@redhat.com>
PR c/101312
* langhooks.h (struct lang_hooks_for_types): Remove
copy_lang_qualifiers. Add build_lang_qualified_type.
* langhooks.cc (lhd_build_lang_qualified_type): New function.
* langhooks-def.h (lhd_build_lang_qualified_type): Declare.
(LANG_HOOKS_COPY_LANG_QUALIFIERS): Remove.
(LANG_HOOKS_BUILD_LANG_QUALIFIED_TYPE): Add.
(LANG_HOOKS_FOR_TYPES_INITIALIZER): Use
LANG_HOOKS_BUILD_LANG_QUALIFIED_TYPE instead of
LANG_HOOKS_COPY_LANG_QUALIFIERS.
* attribs.cc (build_type_attribute_qual_variant): Use
lang_hooks.types.build_lang_qualified_type instead of
build_qualified_type and/or build_qualified_type with
optional lang_hooks.types.copy_lang_qualifiers call.
(attr_access::array_as_string): Use "array " attribute instead of
"array". If attribute has been created or intended quals differ
from quals of build_array_type, use copy_node and adjust quals and
attributes on the copy, print and then ggc_free.
2026-02-05 Richard Biener <rguenther@suse.de>
PR tree-optimization/123986
* tree-vect-slp.cc (vect_slp_analyze_operations): When
rolling back analyzed nodes, release node specific data
and reset SLP_TREE_TYPE.
2026-02-05 Richard Biener <rguenther@suse.de>
PR tree-optimization/123983
* tree-vect-loop-manip.cc (vect_update_ivs_after_vectorizer):
Only update the PHI argument on the requested edge.
2026-02-05 Richard Earnshaw <rearnsha@arm.com>
PR target/123604
* compare-elim.cc (find_flags_uses_in_insn): Handle COND_EXEC.
* config/arm/arm.cc (TARGET_FLAGS_REGNUM): Define.
2026-02-05 Jakub Jelinek <jakub@redhat.com>
PR middle-end/123978
* range-op.h (OP_WIDEN_MULT_SIGNED_UNSIGNED): Define.
(OP_WIDEN_PLUS_SIGNED, OP_WIDEN_PLUS_UNSIGNED,
RANGE_OP_TABLE_SIZE): Renumber.
* gimple-range-op.cc (imple_range_op_handler::maybe_non_standard):
Use 3 different classes instead of 2 for WIDEN_MULT_EXPR, one
for both operands signed, one for both operands unsigned and
one for operands with different signedness. In the last case
canonicalize to first operand signed second unsigned.
* range-op.cc (operator_widen_mult_signed::wi_fold): Use
TYPE_PRECISION (type) rather than wi::get_precision (whatever) * 2,
use SIGNED for all wide_int::from calls.
(operator_widen_mult_unsigned::wi_fold): Similarly but use UNSIGNED
for all wide_int::from calls.
(class operator_widen_mult_signed_unsigned): New type.
(operator_widen_mult_signed_unsigned::wi_fold): Define.
2026-02-05 Jan Hubicka <hubicka@ucw.cz>
PR ipa/123226
* cgraph.cc (cgraph_update_edges_for_call_stmt_node): Fix handling
of multi-target speculations resolved at clone materialization time
2026-02-05 xiezhiheng <xiezhiheng@huawei.com>
liyunfei <liyunfei33@huawei.com>
* config/aarch64/aarch64-cores.def (AARCH64_CORE): Add hip12 core
* config/aarch64/aarch64-cost-tables.h: Add hip12_extra_costs
* config/aarch64/aarch64-tune.md: Regenerate
* config/aarch64/aarch64.cc: Include hip12 tuning model
* doc/invoke.texi: Document -mcpu=hip12
* config/aarch64/tuning_models/hip12.h: New file.
2026-02-05 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123870
PR target/123969
* config/riscv/vector.md: Add vlds to "no ratio" for
theadvector.
2026-02-05 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123971
* config/riscv/riscv.cc (riscv_vector_mode_supported_any_target_p):
Remove TARGET_XTHEADVECTOR.
2026-02-05 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123925
* tree-ssa-forwprop.cc (simplify_vector_constructor):
Add nop-conversion handling for maybe_ident.
2026-02-05 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123910
* config/riscv/riscv-string.cc (riscv_expand_block_move):
Remove !xtheadvector guard.
(use_vector_stringop_p): Guard small LMULs.
(check_vectorise_memory_operation): Ditto.
2026-02-05 Richard Biener <rguenther@suse.de>
PR tree-optimization/121726
* tree-sra.cc (build_ref_for_offset): Add force_ref_all
parameter and use ptr_type_node as alias pointer type in
that case.
(build_ref_for_model): Add force_ref_all parameter and
pass it through, forcing build_ref_for_offset.
(generate_subtree_copies): Likewise.
(sra_modify_call_arg): Force ref-all accesses.
2026-02-05 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/123898
* tree-ssa-math-opts.cc (strip_nop_view_converts): New.
(convert_mult_to_fma): Use it.
2026-02-05 Alexandre Oliva <oliva@adacore.com>
* simplify-rtx.cc (negated_ops_p): New.
(simplify_context::simplify_binary_operation_1): Use it.
2026-02-05 Pan Li <pan2.li@intel.com>
* config/riscv/riscv-opts.h (VR2FPR_COST_UNPROVIDED): Add new
sentinel for unprovided cost.
* config/riscv/riscv-protos.h (get_vr2fr_cost): Add new func
decl.
* config/riscv/riscv-vector-costs.cc (costs::adjust_stmt_cost):
Leverage new func to get cost of vr2fpr.
* config/riscv/riscv.cc (riscv_register_move_cost): Ditto.
(get_vr2fr_cost): Add new func to wrap access to the cost
of the vr2fpr.
* config/riscv/riscv.opt: Add new param vr2fpr-cost.
2026-02-05 Pan Li <pan2.li@intel.com>
* config/riscv/riscv-opts.h (GPR2VR_COST_UNPROVIDED): Depend on
default unprovided value.
(FPR2VR_COST_UNPROVIDED): Ditto.
(VR2GPR_COST_UNPROVIDED): Ditto.
(COST_UNPROVIDED): Add new default unprovided value.
* config/riscv/riscv-protos.h (get_vr2gr_cost): Add new func
decl.
* config/riscv/riscv-vector-costs.cc (costs::adjust_stmt_cost):
Leverage new func to get cost of vr2gpr.
* config/riscv/riscv.cc (riscv_register_move_cost): Ditto.
(get_vr2gr_cost): Add new func to wrap access to the cost
of the vr2gpr.
* config/riscv/riscv.opt: Add new param vr2gpr-cost.
2026-02-04 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/123922
* lra-assigns.cc (lra_split_hard_reg_for): Allocate and free
update_hard_regno_preference_check. Clear non_reload_pseudos for
successful spilling too.
2026-02-04 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR middle-end/121661
* tree-complex.cc (extract_component): Create gimple
assign statements directly rather than call force_gimple_operand_gsi.
2026-02-04 Sandra Loosemore <sloosemore@baylibre.com>
PR translation/89915
* doc/params.texi: Copy-edit text throughout the file.
* params.opt: Likewise in documentation strings.
2026-02-04 Sandra Loosemore <sloosemore@baylibre.com>
PR target/123245
PR translation/89915
* doc/invoke.texi (Warning Options): Remove discussion of parameters
from -Winterference-size documentation.
(Static Analyzer Options): Ditto for -Wanalyzer-symbol-too-complex,
the list of things the analyzer has specific knowledge of, and
-fanalyzer-call-summaries.
(Optimize Options): Ditto for -finline-limit and fipa-cp-clone.
(Instrumentation Options): Likewise for -fsanitize=kernel-hwaddress
and -fharden-control-flow-redundancy.
(C++ Compiled Module Interface): Likewise for discussion of limits
on number of open files.
2026-02-04 Sandra Loosemore <sloosemore@baylibre.com>
PR target/123245
PR translation/89915
* Makefile.in (TEXI_GCCINT_FILES): Add params.texi.
* doc/gccint.texi (pa): New index.
(Top): Add new Parameters and Parameters Index nodes to menu.
Include params.texi.
(Parameter Index): New.
* doc/invoke.texi (Option Summary): Move --param from Optimization
Options to Developer Options.
(Optimization Options): Move parameter documentation to params.texi.
(Developer Options): Add abbreviated discussion of --param here.
(LoongArch Options): Move parameter documentation to params.texi.
(RISC-V Options): Likewise.
(RS/6000 and PowerPC Options): Likewise.
* doc/params.texi: New file.
2026-02-04 Yangyu Chen <cyy@cyyself.name>
* config/riscv/riscv-target-attr.cc
(riscv_target_attr_parser::parse_arch): Fix nullptr dereference
when parsing invalid arch string.
2026-02-04 Jakub Jelinek <jakub@redhat.com>
PR c++/123818
* tree.cc (simple_cst_equal) <case CONSTRUCTOR>: Return -1 if some
recursive call returns -1. Also compare indexes.
2026-02-04 Jakub Jelinek <jakub@redhat.com>
PR middle-end/122689
* gimple-lower-bitint.cc (gimple_lower_bitint): For the PHI handling
if min_prec == prec, break after emitting assignment from c.
2026-02-04 Prachi Godbole <pgodbole@nvidia.com>
* params.opt: Change default param value.
2026-02-03 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR other/123841
* acinclude.m4 (gcc_GAS_FLAGS): Check $gas_flag, $gnu_ld_flag
instead of $gas, $gnu_ld.
* configure.ac: Likewise.
(gas_flag): Determine if not already set.
(gnu_ld_flag): Likewise.
(ld_32_opt): Only set after gnu_ld_flag is set.
(ld_64_opt): Likewise.
* configure: Regenerate.
2026-02-03 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR other/123841
* acinclude.m4 (gcc_GAS_FLAGS): Handle Darwin as cases separately.
* configure: Regenerate.
2026-02-03 Roger Sayle <roger@nextmovesoftware.com>
PR middle-end/118608
* expr.cc (store_field_updates_msb_p): New helper function that
now also handles BYTES_BIG_ENDIAN targets.
(expand_assignment): Use the above function when deciding to emit
a required sign/zero extension.
* rtlanal.cc (truncated_to_mode): Call targetm.mode_rep_extended
to check whether an explicit TRUNCATE is required (i.e. performs
an extension) on this target.
* config/mips/mips.md (*extenddi_truncate<mode>): Handle all
SUBDI modes, not just SHORT modes.
2026-02-03 Roger Sayle <roger@nextmovesoftware.com>
PR middle-end/123826
* tree-ssa-math-opts.cc (gimple_expand_builtin_pow): Add test
for flag_errno_math.
* fold-const-call.cc (fold_const_pow): Reorganize, eliminating
call to real_powi, and letting do_mpfr_arg2 do all the heavy
lifting.
2026-02-03 Alfie Richards <alfie.richards@arm.com>
PR target/123548
* config/aarch64/aarch64-builtins.cc
(aarch64_builtins): Rename AARCH64_PL<X> to
AARCH64_PREFETCH_PL<X>.
(aarch64_init_prefetch_builtin): Rename to...
(aarch64_init_prefetch_builtins): ...this and change builtin
names.
(AARCH64_INIT_PREFETCH_BUILTIN): Change to not add
"__builtin_aarch64__" prefix and to register builtins.
(handle_arm_acle_h): Add call to aarch64_init_prefetch_builtins.
(aarch64_init_pcdphint_builtins): Move __pldir code to init
prefetch builtins.
(aarch64_general_init_builtins): Remove call to
aarch64_init_prefetch_builtin.
(aarch64_expand_prefetch_builtin): Update names of PL<X>
builtins.`
* config/aarch64/arm_acle.h
(__pld): Remove
(__pli): Likewise.
(__plix): Likewise.
(__pldx): Likewise.
(__pldir): Likewise.
2026-02-03 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR rtl-optimization/123322
* combine.cc (try_combine): Consider an IF_THEN_ELSE "good" when
evaluating if 4 insn combinations should be tried.
* config/riscv/iterators.md (zero_is_neutral_op): New iterator.
(zero_is_neutral_op_c): Likewise.
(any_shift_rotate): Likewise.
* config/riscv/riscv.cc (riscv_rtx_costs): Recognize the conditional
AND RTL and cost is appropriately.
* config/riscv/zicond.md: Add patterns to rewrite general conditional
move sequences into simpler forms.
2026-02-03 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac (gcc_cv_header_afunix_h): New test.
(HAVE_AFUNIX_H): New AC_DEFINE.
* diagnostics/sarif-sink.cc: Conditionally include afunix.h
if it's available, else fall back to internal definition.
2026-02-03 Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
PR middle-end/123892
* collect2.cc: Migrate from CONST_CAST2() macro to
const_cast<>() C++ expression.
* config/sparc/driver-sparc.cc: Likewise.
* gcc-ar.cc: Likewise.
* gcc.cc: Likewise.
* toplev.cc: Likewise.
* tree-nested.cc: Likewise.
2026-02-03 Richard Biener <rguenther@suse.de>
PR ipa/123416
* ipa-modref.cc (ipa_merge_modref_summary_after_inlining):
Fix typo in condtion for load merging when no callee summary.
2026-02-03 Xi Ruoyao <xry111@xry111.site>
Revert:
2025-11-08 Lulu Cheng <chenglulu@loongson.cn>
PR target/122097
* config/loongarch/loongarch.cc
(loongarch_const_vector_same_bytes_p): Add processing for
floating-point vector data.
2026-02-03 Xi Ruoyao <xry111@xry111.site>
* config/loongarch/predicates.md (const_vector_neg_fp_operand):
New define_predicate.
(reg_or_vector_neg_fp_operand): New define_predicate.
* config/loongarch/lasx.md (copysign<mode>3): Remove.
(xorsign<mode>3): Remove.
* config/loongarch/lsx.md (copysign<mode>3): Remove.
(@xorsign<mode>3): Remove.
* config/loongarch/simd.md (copysign<mode>3): New define_expand.
(@xorsign<mode>3): New define_expand.
(and<mode>3): Only allow IVEC instead of ALLVEC.
(ior<mode>3): Likewise.
(xor<mode>3): Likewise.
* config/loongarch/loongarch.cc (loongarch_print_operand): No
longer allow floating-point vector constants for %V.
(loongarch_const_vector_bitimm_set_p): Always return false for
floating-point vector constants.
(loongarch_build_signbit_mask): Factor out force_reg.
(loongarch_emit_swrsqrtsf): Use integer vector mode instead of
floating-point vector mode when masking zero inputs.
2026-02-02 David Malcolm <dmalcolm@redhat.com>
PR diagnostics/110522
* gcc.cc (driver_handle_option): Use
get_diagnostic_file_output_basename for
OPT_fdiagnostics_format_.
* opts-diagnostic.cc (get_base_filename): Likewise.
(get_diagnostic_file_output_basename): New.
* opts-diagnostic.h (get_diagnostic_file_output_basename): New
decl.
* opts.cc (maybe_prepend_dump_dir_name): New, based on code in
finish_options.
(finish_options): Move code for determining prepended
dump_base_name to maybe_prepend_dump_dir_name and call it.
(common_handle_option): Use get_diagnostic_file_output_basename
for OPT_fdiagnostics_format_.
* opts.h (maybe_prepend_dump_dir_name): New decl.
2026-02-02 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/123294
* ifcvt.cc (noce_emit_store_flag): Reject modes
greater than MAX_FIXED_MODE_SIZE.
2026-02-02 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/123897
* tree-ssa-math-opts.cc (convert_mult_to_fma_1): Use type of variable
being folded.
2026-02-02 Tamar Christina <tamar.christina@arm.com>
PR target/121290
* config/aarch64/aarch64.cc (aarch64_vector_costs::add_stmt_cost):
Remove else.
2026-02-02 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/121104
* tree-ssa-math-opts.cc (match_uaddc_usubc): Punt if
lhs of ovf1 or ovf2 doesn't have element type compatible with type.
2026-02-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/123755
* tree-vect-stmts.cc (vectorizable_call): Adjust len-masking
condition. Simplify code generation.
2026-01-31 Keith Packard <keithp@keithp.com>
* config/picolibc-spec.h (LIBC_LINK_SPEC): Use find-file for test
and access to picolibc.ld.
2026-01-31 Richard Biener <rguenther@suse.de>
PR middle-end/123887
* match.pd ((a ? x : y) !=/== (b ? x : y)): Make sure
x and y have no side-effects before evaluating them
unconditionally.
2026-01-31 Gerald Pfeifer <gerald@pfeifer.com>
* doc/install.texi (Binaries): Switch delorie.com to https.
2026-01-30 Richard Biener <rguenther@suse.de>
PR middle-end/123887
* match.pd ((zero_one ==/!= 0) ? .. z <op> y .. -> zero_one * z ..):
Check evaluating z unconditionally has no side-effects, like
trapping.
2026-01-30 Richard Biener <rguenther@suse.de>
PR debug/123886
* dwarf2out.cc (sym_off_pair::sym): Remove GTY((skip)).
2026-01-30 Michal Jires <mjires@suse.cz>
* doc/extend.texi: Mention flto-toplevel-asm-heuristics.
* doc/invoke.texi: Add flto-toplevel-asm-heuristics.
2026-01-30 Richard Biener <rguenther@suse.de>
PR debug/110885
* dwarf2out.cc (generate_skeleton_bottom_up): Generate the
skeleton ancestor tree when moving a new child to the parent
even for template instantiations.
2026-01-30 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123864
* match.pd (__builtin_mul_overflow_p (x, cst, (stype) 0) ->
x > stype_max / cst || x < stype_min / cst): Only check
integer_minus_onep for signed types.
2026-01-30 Jakub Jelinek <jakub@redhat.com>
PR c++/123790
* fold-const.cc (fold_convert_const): Handle conversion of
integer_zerop to NULLPTR_TYPE.
(fold_convert_loc): Likewise.
2026-01-30 Jørgen Kvalsvik <j@lambda.is>
PR gcov-profile/123855
* path-coverage.cc (flush_on_edges): Only look up SSA name def
stmt when counter is non-const.
2026-01-30 Jørgen Kvalsvik <j@lambda.is>
* gcov-dump.cc (tag_paths): New function.
2026-01-30 Jørgen Kvalsvik <j@lambda.is>
* common.opt: ftest-coverage enabled by fpath-coverage or
fcondition-coverage
2026-01-30 Jørgen Kvalsvik <j@lambda.is>
* gcov-dump.cc (tag_conditions): Read position before blocks,
terms.
2026-01-30 Jørgen Kvalsvik <j@lambda.is>
PR gcov-profile/121084
PR gcov-profile/121123
PR gcov-profile/121409
* profile.cc (branch_prob): Record seen_locations without
discriminators.
2026-01-30 Jakub Jelinek <jakub@redhat.com>
PR middle-end/123876
* omp-low.cc (diagnose_sb_2): Handle GIMPLE_ASM.
2026-01-30 Alex Coplan <alex.coplan@arm.com>
PR target/123206
* config/aarch64/aarch64-builtins.cc (struct aarch64_pragma_builtins_data):
Declare array as CONSTEXPR.
* config/aarch64/aarch64-simd-pragma-builtins.def: Update
incorrect uses of TARGET_SIMD to use AARCH64_FL_SIMD instead.
2026-01-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/109410
* tree-ssa-reassoc.cc (build_and_add_sum): Use
gsi_start_nondebug_after_labels_bb to look for a possible
returns-twice call.
2026-01-30 Iain Buclaw <ibuclaw@gdcproject.org>
* config/darwin-d.cc (darwin_d_os_builtins): Add Apple.
2026-01-30 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/122170
* ifcvt.cc (noce_can_force_operand): Don't only check if
there is an optab for the code check the entry for the
mode is non-null. Handle non integral div by checking
optab like force_operand does.
2026-01-30 Lulu Cheng <chenglulu@loongson.cn>
* config/loongarch/loongarch-ftypes.def: Remove unused type.
2026-01-30 Lulu Cheng <chenglulu@loongson.cn>
PR target/123766
* config/loongarch/loongarch-builtins.cc
(loongarch_build_vpointer_type): New function. Return a type
for 'volatile void *'.
(LARCH_ATYPE_VPOINTER): New macro.
* config/loongarch/loongarch-ftypes.def: Change the pointer
type of the store class function from CVPOINTER to VPOINTER.
2026-01-30 Lulu Cheng <chenglulu@loongson.cn>
PR target/123807
* config/loongarch/loongarch.cc
(loongarch_expand_vector_init_same): When same is MEM and
GET_MODE(same) != imode, first load the data from memory
and then process it further.
2026-01-30 mengqinggang <mengqinggang@loongson.cn>
* config/loongarch/loongarch.md: Delete movsf TARGET_HARD_FLOAT
condition.
2026-01-29 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR middle-end/123869
* optabs.cc (expand_unop): Move the NEG optab
handling before the widening code.
Move the ABS bitwise expansion from expand_abs_nojump
to before the widening code.
(expand_abs_nojump): Remove the bitwise expansion trial
since expand_unop is called right above.
2026-01-29 Roger Sayle <roger@nextmovesoftware.com>
* expr.cc (emit_group_load_1): Don't call force_reg if orig_src
is already a CONCAT.
2026-01-29 Sandra Loosemore <sloosemore@baylibre.com>
* doc/options.texi (Options): Point to the "user experience"
documentation.
* doc/ux.texi (Guidelines for Options): Add some.
2026-01-29 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123806
* config/riscv/riscv-string.cc (expand_rawmemchr): Use unified
vl_read.
(expand_strcmp): Ditto.
* config/riscv/riscv-vector-builtins-bases.cc:
* config/riscv/riscv-vector-builtins.cc (function_expander::use_fof_load_insn):
Only emit the store and not the VL read.
* config/riscv/riscv-vsetvl.cc (get_fof_set_vl_reg): New
function.
(init_rtl_ssa): New wrapper.
(finish_rtl_ssa): Ditto.
(emit_fof_read_vls): Emit read_vl after each fault-only-first
load.
(pass_vsetvl::simple_vsetvl): Call emit_fof_read_vls ().
(pass_vsetvl::lazy_vsetvl): Ditto.
* config/riscv/vector-iterators.md: Add read_vl unspec.
* config/riscv/vector.md (read_vlsi): Unify.
(@read_vl<mode>): Ditto.
(read_vldi_zero_extend): Ditto.
(@pred_fault_load_set_vl<V_VLS:mode><P:mode>): New FoF variant
that saves VL in a register.
(@pred_fault_load_set_vl<VT:mode><P:mode>): Ditto.
2026-01-29 Filip Kastl <fkastl@suse.cz>
* gimple-ssa-pta-constraints.cc (make_param_constraints): Adjust
comment: The function only creates varinfos for the parameters,
the return value and the static chain.
2026-01-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/122537
* tree-ssa-loop-niter.cc (number_of_iterations_lt_to_ne): Register
may_be_zero condition when the IV may overflow.
2026-01-29 Sangamesh Mallayya <swamy.sangamesh@gmail.com>
* diagnostics/sarif-sink.cc: Move config.h at the begining.
2026-01-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/123596
* tree-eh.cc (sink_clobbers): Create a virtual PHI when
one is required but not present, queuing arguments
for renaming.
2026-01-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/116747
* tree-ssa-phiopt.cc (cond_if_else_store_replacement): Avoid
duplicate stmts in the set of store pairs to process.
2026-01-28 Uros Bizjak <ubizjak@gmail.com>
PR target/36503
* config/i386/i386.md (*<insn:any_shift><mode:SWI48>3_sub):
Also allow operands[3] & (<mode_bitsize>-1) == (<mode_bitsize>-1)
in insn condition. Emit NOT RTX instead of NEG RTX in this case.
(*<insn:any_shift><mode:SWI48>3_sub_1): Ditto.
2026-01-28 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123824
* config/riscv/riscv.cc (riscv_vls_mode_fits_in_gprs_p): New
helper.
(riscv_pass_vls_aggregate_in_gpr): Use helper and distribute
half-fitting vector to GPR and stack.
(riscv_pass_aggregate_in_vr): Reformat comment.
(riscv_get_arg_info): Use helper.
(riscv_pass_by_reference): Ditto.
2026-01-28 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/121571
* lra-constraints.cc (process_alt_operands): Reprocess asm insn
when there are no enough regs for the asm-insn.
2026-01-28 Richard Biener <rguenther@suse.de>
PR middle-end/123575
* match.pd (abs ((T)x) -> absu (x)): For vector type
arguments require the resulting operation is supported.
2026-01-28 Richard Biener <rguenther@suse.de>
PR ipa/111036
* match.pd (__builtin_constant_p ((T)x)): Strip nop-conversions
from __builtin_constant_p arguments.
2026-01-28 Richard Biener <rguenther@suse.de>
PR rtl-optimization/106859
* var-tracking.cc (val_store): Dump -1 as UID if setting_insn
is NULL.
2026-01-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/123537
* match.pd (REDUC (@0 & @1) -> @0[I] & @1[I]): Restrict
allowed conversions.
2026-01-28 Karl Meakin <karl.meakin@arm.com>
* doc/invoke.texi: Document `+sve-bfscale` flag.
* config/aarch64/aarch64.h (TARGET_SVE_BFSCALE): New macro.
* config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins):
Define `__AARCH64_FEATURE_SVE_BFSCALE`.
* config/aarch64/aarch64-sve-builtins-base.cc: Skip constant
folding for floating-point or unpredicated multiplications.
* config/aarch64/aarch64-sve-builtins-sve2.def: New `SVE_FUNCTION`s.
* config/aarch64/aarch64-sve.md: Modify insns for
`SVE_COND_FP_BINARY_INT` to handle BF16 modes.
* config/aarch64/aarch64-sve2.md
(@aarch64_sve_<optab><mode>, @aarch64_sve_<optab><mode>_single): New insn for `BFSCALE`.
Modify insns for `UNSPEC_FSCALE` to handle BF16 modes.
* config/aarch64/iterators.md (SVE_FULL_F_SCALAR): Add `VNx8BF` to iterator.
(SVE_FULL_F_BFSCALE): New iterator.
(SVE_Fx24_BFSCALE): New iterator.
(SVE_BFx24): New iterator.
(UNSPEC_FMUL): New unspec.
(V_INT_EQUIV): Add entries for BF16 modes.
(b): Add entries for scalar float modes.
(is_bf16): Add entries for BF16 modes and reformat.
(SVSCALE_SINGLE_INTARG): Likewise.
(SVSCALE_INTARG): Likewise.
(SVE_FP_MULL): New iterator.
2026-01-28 Pengfei Li <Pengfei.Li2@arm.com>
PR middle-end/123447
* expr.cc (expand_expr_real_1): Increase stack slot alignment
for STRICT_ALIGNMENT targets.
2026-01-28 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR target/123016
* tree-vect-stmts.cc (vectorizable_simd_clone_call): use
'build_truth_vector_type_for_mode' to reconstruct mask's vectype for
non-scalar masks.
2026-01-28 Jakub Jelinek <jakub@redhat.com>
PR c/101312
* langhooks.h (struct lang_hooks_for_types): Remove
copy_lang_qualifiers. Add build_lang_qualified_type.
* langhooks.cc (lhd_build_lang_qualified_type): New function.
* langhooks-def.h (lhd_build_lang_qualified_type): Declare.
(LANG_HOOKS_COPY_LANG_QUALIFIERS): Remove.
(LANG_HOOKS_BUILD_LANG_QUALIFIED_TYPE): Add.
(LANG_HOOKS_FOR_TYPES_INITIALIZER): Use
LANG_HOOKS_BUILD_LANG_QUALIFIED_TYPE instead of
LANG_HOOKS_COPY_LANG_QUALIFIERS.
* attribs.cc (build_type_attribute_qual_variant): Use
lang_hooks.types.build_lang_qualified_type instead of
build_qualified_type and/or build_qualified_type with
optional lang_hooks.types.copy_lang_qualifiers call.
(attr_access::array_as_string): Use "array " attribute instead of
"array". If attribute has been created or intended quals differ
from quals of build_array_type, use copy_node and adjust quals and
attributes on the copy, print and then ggc_free.
2026-01-28 Jakub Jelinek <jakub@redhat.com>
PR c++/123837
* ipa-free-lang-data.cc (find_decls_types_r): Remove C++ annotations
from {DECL,TYPE}_ATRIBUTES.
2026-01-28 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123849
* gimple-ssa-warn-access.cc (new_delete_mismatch_p): Handle
DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE like DEMANGLE_COMPONENT_BUILTIN_TYPE.
2026-01-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/110043
* pointer-query.cc (get_offset_range): Fail for integer
types with precision larger than ptrdiff_type_node.
2026-01-28 Hongyu Wang <hongyu.wang@intel.com>
PR target/123779
* config/i386/sse.md (*sse4_1_<code>v8qiv8hi2<mask_name>_2):
Rename to ...
(*sse4_1_<code>v8qiv8hi2_2): ... this, and drop mask conditions.
(*avx2_<code>v8qiv8si2<mask_name>_2): Rename to ...
(*avx2_<code>v8qiv8si2_2): ... this, and likewise.
(*sse4_1_<code>v4qiv4si2<mask_name>_2): Rename to ...
(*sse4_1_<code>v4qiv4si2_2): ... this, and likewise.
(*sse4_1_<code>v4hiv4si2<mask_name>_2): Rename to ...
(*sse4_1_<code>v4hiv4si2_2): ... this, and likewise.
(*avx2_<code>v4qiv4di2<mask_name>_2): Rename to ...
(*avx2_<code>v4qiv4di2_2): ... this, and likewise.
(*avx2_<code>v4hiv4di2<mask_name>_2): Rename to ...
(*avx2_<code>v4hiv4di2_2): ... this, and likewise.
(*sse4_1_<code>v2hiv2di2<mask_name>_2): Rename to ...
(*sse4_1_<code>v2hiv2di2_2): ... this, and likewise.
(*sse4_1_<code>v2siv2di2<mask_name>_2): Rename to ...
(*sse4_1_<code>v2siv2di2_2): ... this, and likewise.
(*avx512f_<code>v8qiv8di2<mask_name>_2): Rename to ...
(*avx512f_<code>v8qiv8di2_2): ... this.
(*avx512vl_<code>v8qiv8hi2_mask_2): New define_insn_and_split.
(*avx512vl_<code>v8qiv8si2_mask_2): Likewise.
(*avx512vl_<code>v4qiv4si2_mask_2): Likewise.
(*avx512vl_<code>v4hiv4si2_mask_2): Likewise.
(*avx512f_<code>v8qiv8di2_mask_2): Likewise.
(*avx512vl_<code>v4qiv4di2_mask_2): Likewise.
(*avx512vl_<code>v4hiv4di2_mask_2): Likewise.
(*avx512vl_<code>v2hiv2di2_mask_2): Likewise.
(*avx512vl_<code>v2siv2di2_mask_2): Likewise.
2026-01-28 Nina Ranns <dinka.ranns@gmail.com>
Iain Sandoe <iain@sandoe.co.uk>
Ville Voutilainen <ville.voutilainen@gmail.com>
* doc/invoke.texi: Document -fcontracts-client-check= and
-fcontracts-definition-check=.
2026-01-28 Nina Ranns <dinka.ranns@gmail.com>
Iain Sandoe <iain@sandoe.co.uk>
Ville Voutilainen <ville.voutilainen@gmail.com>
* doc/invoke.texi: Document -fcontract-checks-outlined and
-fcontract-disable-optimized-checks.
2026-01-28 Nina Ranns <dinka.ranns@gmail.com>
Iain Sandoe <iain@sandoe.co.uk>
* tree-core.h (struct tree_base): Update tree flag usage comment.
2026-01-28 Nina Ranns <dinka.ranns@gmail.com>
Iain Sandoe <iain@sandoe.co.uk>
* tree.h (CONST_WRAPPER_P): New.
2026-01-28 Nina Ranns <dinka.ranns@gmail.com>
Iain Sandoe <iain@sandoe.co.uk>
* doc/invoke.texi: Document -fcontracts-conservative-ipa.
2026-01-28 Iain Sandoe <iain@sandoe.co.uk>
Nina Ranns <dinka.ranns@gmail.com>
Ville Voutilainen <ville.voutilainen@gmail.com>
* config/darwin.h (ASM_GENERATE_INTERNAL_LABEL): Add cases for contract
constant data that need to be in independent link-time 'atoms'.
* doc/invoke.texi: Document -fcontracts and
-fcontract-evaluation-semantic=.
2026-01-28 Iain Sandoe <iain@sandoe.co.uk>
Nina Ranns <dinka.ranns@gmail.com>
* doc/invoke.texi: Remove documentation of contracts options.
2026-01-27 Jakub Jelinek <jakub@redhat.com>
PR other/123841
* acinclude.m4 (gcc_GAS_FLAGS) <i?86-*-* | x86_64-*-*>: Set
gcc_cv_as_flags irrespective of $gas_flag.
* configure: Regenerate.
2026-01-27 David Malcolm <dmalcolm@redhat.com>
PR analyzer/122623
* doc/invoke.texi (-fanalyzer-assume-nothrow): New option.
2026-01-27 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR middle-end/97898
* omp-expand.cc (expand_omp_for_static_chunk): Don't
conditionalize the call to force_gimple_operand_gsi on DECL_P/TREE_ADDRESSABLE
but rather pass that as the 3rd argument.
2026-01-27 Jan Hubicka <hubicka@ucw.cz>
PR ipa/123619
* ipa-polymorphic-call.cc
(ipa_polymorphic_call_context::possible_dynamic_type_change): Remove impossible
speuculation.
2026-01-27 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (ld_32_opt, ld_64_opt): Set.
(ld_ix86_gld_32_opt): Replace by ld_32_opt.
(ld_ix86_gld_64_opt): Replace by ld_64_opt.
Replace -melf_x86_64 by ld_64_opt.
* configure: Regenerate.
2026-01-27 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* acinclude.m4 (gcc_cv_as_flags) Provide Solaris settings.
Apply Linux/x86 gas settings on all x86 gas targets, too.
(as_32_opt, as_64_opt): Set on all x86 gas targets.
* configure.ac: Consistenly use as_32_opt, as_64_opt instead of
as_ix86_gas_{32,64}_opt or hardcoded --64.
<sparc*-*-*>: Simplify setting TLS test code.
* configure: Regenerate.
2026-01-27 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (fw_as_opt): Set.
Replace --fatal-warnings by $fw_as_opt.
(tls_as_opt): Remove --fatal-warnings.
(gcc_cv_as_tls): Use $fw_as_opt.
* configure: Regenerate.
2026-01-27 Richard Biener <rguenther@suse.de>
PR ipa/116296
* ipa-modref-tree.cc (modref_access_node::contains): Use
poly_offset_int for the param offset difference and the
overlap computation.
2026-01-27 Richard Biener <rguenther@suse.de>
PR debug/123376
* dwarf2out.cc (tree_add_const_value_attribute): Walk all
initializers for early mangling of referenced decls.
(mangle_referenced_decls): Also walk subtrees of CONSTRUCTORS.
2026-01-27 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123799
* tree-ssa-forwprop.cc (simplify_vector_constructor): Pun
conversion element type with integer type.
2026-01-27 Wilco Dijkstra <wilco.dijkstra@arm.com>
PR target/123791
* config/aarch64/aarch64.cc (aarch64_cannot_force_const_mem):
Always return true for symbols and labels except for large model.
(aarch64_select_rtx_section): Force .rodata for constants only.
2026-01-27 Wilco Dijkstra <wilco.dijkstra@arm.com>
PR target/123792
* config/aarch64/aarch64.md (aarch64_<optab>_reg_minus<mode>3):
Add support for invert in shift count.
2026-01-27 Tobias Burnus <tburnus@baylibre.com>
* doc/install.texi (gcn): Require Newlib 4.6.0+, replacing 4.3.0+
requirement with long list of recommended fixes up to post-4.5.0.
2026-01-27 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122749
* tree-ssa-math-opts.cc (convert_mult_to_fma_1, convert_mult_to_fma):
Unwrap converts around addend.
2026-01-26 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123820
* gimple-ssa-strength-reduction.cc (create_add_on_incoming_edge): Use
the correct type for the stride (lhs if non-pointer).
2026-01-26 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR middle-end/123709
* final.cc (output_asm_operand_names): Skip over
opnum which is MAX_RECOG_OPERANDS (invalid).
(output_asm_insn): Increase opoutput and oporder size
by 1. For out of range operands, set the opnum to
MAX_RECOG_OPERANDS.
2026-01-26 Filip Kastl <fkastl@suse.cz>
* doc/invoke.texi: Document --param auto-profile-reorder-only.
* params.opt: Fix spelling.
2026-01-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/122474
* tree-vectorizer.h (vect_reduc_info_s::neutral_op): New.
(VECT_REDUC_INFO_NEUTRAL_OP): New.
* tree-vect-loop.cc (vectorizable_reduction): Adjust condition
guarding the check for .VEC_SHL_INSERT.
2026-01-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/123755
* tree-vect-stmts.cc (vectorizable_call): Fixup LEN masking
of unconditional but possibly trapping calls.
2026-01-26 Victor Do Nascimento <victor.donascimento@arm.com>
PR tree-optimization/123657
* tree-vect-loop.cc (vect_analyze_loop_form): Add
chrec_dont_know check.
2026-01-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/123794
* tree-vect-slp.cc (vect_remove_slp_scalar_calls): Unlink
VOPs for all calls.
2026-01-26 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
PR tree-optimization/123628
* tree-if-conv.cc (if_convertible_simdclone_stmt_p): New.
(if_convertible_stmt_p, predicate_statements): Use it.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
* gcc-urlifier.cc (test_gcc_urlifier): Match either positive
or negative option URLS.
2026-01-25 Roger Sayle <roger@nextmovesoftware.com>
PR middle-end/122348
* expr.cc (store_constructor): Ignore fields where DECL_SIZE
is NULL_TREE, i.e. flexible array members.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
* common.opt.urls: Regenerated.
* config/alpha/alpha.opt.urls: Regenerated.
* config/arc/arc.opt.urls: Regenerated.
* config/arm/arm.opt.urls: Regenerated.
* config/avr/avr.opt.urls: Regenerated.
* config/bpf/bpf.opt.urls: Regenerated.
* config/cris/cris.opt.urls: Regenerated.
* config/lynx.opt.urls: Regenerated.
* config/m68k/m68k.opt.urls: Regenerated.
* config/mcore/mcore.opt.urls: Regenerated.
* config/mingw/cygming.opt.urls: Regenerated.
* config/mips/mips.opt.urls: Regenerated.
* config/mips/sde.opt.urls: Regenerated.
* config/mmix/mmix.opt.urls: Regenerated.
* config/nvptx/nvptx.opt.urls: Regenerated.
* config/rs6000/linux64.opt.urls: Regenerated.
* config/rs6000/rs6000.opt.urls: Regenerated.
* config/rs6000/sysv4.opt.urls: Regenerated.
* config/sh/sh.opt.urls: Regenerated.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
* doc/invoke.texi (Option Summary): Fix whitespace in @gccoptlist
tables.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/cppopts.texi: Add missing @opindex entries for
-fno-* options.
* doc/invoke.texi: Likewise.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/cppwarnopts.texi: Add missing @opindex entries for
-Wno-* options.
* doc/invoke.texi: Likewise.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/cppdiropts.texi: Document -imultiarch.
* doc/invoke.texi (Option Summary) <Optimization Options>: Add
-flto-toplevel-asm-heuristics.
<Program Instrumentation Options>: Remove -fbounds-check.
<Directory Options>: Add -imultiarch.
<ARC Options>: Add -mbitops, -mcmem, -munaligned-access.
<ARM Options>: Add -mvectorize-with-neon-quad and
-mvectorize-with-neon-double.
<AVR Options>: Add -mrmw and -mstrict-X.
<CRIS Options>: Fix typo in -mmax-stackframe.
<Cygwin and MinGW Options>: Add -muse-libstdc-wrappers.
<M680x0 Options>: Add several missing CPU options, plus -mxtls.
<MIPS Options>: Add -mno-data-in-code and -mcode-xonly.
<MMIX Options>: Add mset-data-start, -mset-program-start, and
-mno-set-program-start.
<Nvidia PTX Options>: Add -msoft-stack-reserve-local.
<RS/6000 and PowerPC Options>: Add -mprofile-kernel, -mbit-word,
-mno-splat-word-constant, -mno-splat-float-constant,
-mno-ieee128-constant, and -mno-warn-altivec-long.
(Optimization Options): Document -flto-toplevel-asm-heuristics.
(ARC Options): Document -mbitops and -mcmem.
(ARM Options): Add index entries for mbe32,
m[no-]fix-cortex-a57-aes-1742098, m[no-]fix-cortex-a72-aes-1655431.
Document -mvectorize-with-neon-quad and -mvectorize-with-neon-double.
(AVR Options): Document -mpmem-wrap-around.
(CRIS Options): Fix typo in -mmax-stackframe.
(Cygwin and MinGW Options): Document -muse-libstdc-wrappers.
(DEC Alpha Options): Fix typo in -mfp-regs.
(eBPF Options): Add @opindex for -mframe-limit.
(HPPA Options): Fix typos in -mno-disable-fpregs and -mno-gas
index entries.
(m680x0 Options): Document -m68302, -m68332, -m68851, and -mfidoa.
Document -mnoshort and -mnortd aliases. Document -mxtls.
(MCore Options): Fix typos in -m[no-]relax-immediates.
(MIPS Options): Document -mno-data-in-code and -mcode-xonly.
(MMIX Options): Document -mset-data-start, -mset-program-start, and
-mno-set-program-start.
(Nvidia PTX Options): Document -msoft-stack-reserve-local.
(RS/6000 and PowerPC Options): Document -mprofile-kernel,
-mbit-word, -msplat-word-constant, -msplat-float-constant,
-mieee128-constant, and -mwarn-altivec-long.
(SH Options): Add index entry for -m2e. Document -m4-400.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* common.opt (fbounds-check): Mark as Undocumented, expand comments
to explain why.
* config/frv/frv.opt (msched-lookahead=): Mark unused option as
Undocumented.
* config/m68k/m68k.opt (m68851): Add RejectNegative.
* config/nvptx/nvptx.opt (minit-regs=): Mark as Undocumented. It's
not currently documented and seems to have been introduced as a
stopgap to experiment with different implementation strategies.
* config/rs6000/476.opt (mpreserve-link-stack): Mark as Undocumented.
It seems to be an internal option that is enabled by default on the
cpu that can benefit from it.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* common.opt (gtoggle): Mark RejectNegative.
* doc/invoke.texi (Option Summary) <Debugging Options>: Remove
redundant -gno- forms from the list.
(Debugging Options): Add @opindex for -gno- option forms.
Copy-edit option descriptions to avoid future tense and use of
implementor jargon.
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/67300
* common.opt (foffload-abi, foffload-abi-host-opts): Mark
"Undocumented".
2026-01-25 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/invoke.texi (Option Summary) <LynxOS Options>: New.
(LynxOS Options): New section.
2026-01-24 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123803
* gimple-ssa-strength-reduction.cc (replace_rhs_if_not_dup): For
pointer lhs use sizetype.
2026-01-23 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123780
* config/riscv/vector.md: Correct output template.
2026-01-23 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123767
* tree-vect-stmts.cc (vectorizable_store): Only scale offset
once.
(vectorizable_load): Ditto.
2026-01-23 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123778
* genmatch.cc (parser::parse_expr): Peek on the next
token after eating the `!` or `^`.
* match.pd (`(op (cnd @0 @1 @2) @3)`, `(op @3 (cnd @0 @1 @2))`):
Add the type to resulting op.
2026-01-23 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/120258
PR tree-optimization/106883
* gimple-ssa-strength-reduction.cc (replace_mult_candidate): Allow for
basis_name and bump_tree not to be the same type as the lhs.
Rewrite added multiply for undefined overflow.
(create_add_on_incoming_edge): Allow for init
to be a different type from the wanted type.
Rewrite added add for undefined overflow.
(replace_rhs_if_not_dup): Rewrite replaced stmts
for undefined overflow.
(replace_one_candidate): Allow for basis_name and
rhs2 to be a different type from lhs.
2026-01-23 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/106883
* gimple-ssa-strength-reduction.cc (create_add_on_incoming_edge): Rewrite
the new addition on the edge too.
2026-01-23 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* gimple-ssa-strength-reduction.cc (introduce_cast_before_cand): Use
gimple_convert instead of manually creating the gimple_assign.
2026-01-23 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/121347
PR tree-optimization/106883
* gimple-ssa-strength-reduction.cc (insert_initializers): Rewrite
newly inserted statements for undefinedness (overflow).
2026-01-23 Peter Bergner <bergner@tenstorrent.com>
PR target/123492
* config/riscv/riscv-cores.def (RISCV_CORE): Add zvfbfmin to
tt-ascalon-d8.
2026-01-23 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123776
* gimple-fold.cc (gimple_fold_partial_load_store): Copy
the vdef from the old statement to the new statement of a
load that is also a store to non gimple_reg.
2026-01-23 Richard Sandiford <rdsandiford@googlemail.com>
PR rtl-optimization/80357
PR rtl-optimization/94014
PR rtl-optimization/123144
* haifa-sched.cc (model_recompute): Ignore dying uses of registers
that are not assumed to be live.
2026-01-23 Richard Biener <rguenther@suse.de>
* match.pd ((convert (vec_cond ...))): Make sure the
resulting vec_cond can be expanded.
2026-01-23 Richard Biener <rguenther@suse.de>
PR middle-end/123775
* match.pd ((view_convert (vec_cond ...))): Make sure the
resulting vec_cond can be expanded.
2026-01-23 Kyrylo Tkachov <ktkachov@nvidia.com>
Revert:
2026-01-20 Kyrylo Tkachov <ktkachov@nvidia.com>
PR target/123584
* config/aarch64/aarch64-sve2.md (@aarch64_sve2_xar<mode>): Use
aarch64_simd_rshift_imm predicate for rotate amount.
2026-01-23 Jakub Jelinek <jakub@redhat.com>
PR middle-end/123703
* builtins.cc (fold_builtin_abs): Return NULL_TREE if type is not
integral.
2026-01-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/123771
* tree-vect-loop.cc (vectorizable_induction): Convert step
also for VLA vectors.
2026-01-23 Richard Biener <rguenther@suse.de>
* config/i386/i386.cc (ix86_vector_costs::finish_cost):
Avoid selecting masked epilogs for in-order reductions.
2026-01-23 Hongyu Wang <hongyu.wang@intel.com>
* config/i386/sse.md (avx2_vbroadcasti128_<mode>): Constraint
alternative 0 with jm and add gpr16 attr to avoid egpr usage.
2026-01-22 Richard Earnshaw <rearnsha@arm.com>
PR target/123742
* config/arm/neon.md (*smin<mode>3_neon): Renamed to ...
(*smin<VDQWH:mode>3_neon): ... this. Add HFmode support.
(*smax<mode>3_neon): Renamed to ...
(*smax<VDQWH:mode>3_neon): ... this. Add HFmode support.
2026-01-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/123741
* tree-vect-stmts.cc (vectorizable_store): Add missing check
on loop vectorization.
2026-01-22 Jonathan Wakely <jwakely@redhat.com>
* tree-vrp.cc (remove_unreachable::fully_replaceable): Fix typo
in comment.
2026-01-22 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123731
* tree-ssa-forwprop.cc (simplify_vector_constructor): Handle nop
conversion between during extraction.
2026-01-22 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/122869
* config/riscv/riscv-vector-builtins-bases.cc (fold_fault_load):
Remove
* config/riscv/riscv-vector-builtins.cc (function_expander::use_contiguous_load_insn):
Use new helper.
(function_expander::prepare_contiguous_load_insn): New helper.
(function_expander::use_fof_load_insn): New function to emit FoF
loads.
* config/riscv/riscv-vector-builtins.h: Declare new functions.
2026-01-22 Robin Dapp <rdapp@oss.qualcomm.com>
PR target/123279
* config/riscv/riscv-vector-builtins-functions.def (REQUIRED_EXTENSIONS):
Add VECTOR_EXT_NO_XTHEAD.
(vlm): Move to VECTOR_EXT_NO_XTHEAD.
(vsm): Ditto.
(vzext): Ditto.
(vsext): Ditto.
(vaaddu): Ditto.
(vaadd): Ditto.
(vasubu): Ditto.
(vasub): Ditto.
(vfrsqrt7): Ditto.
(vfrec7): Ditto.
(vfrec7_frm): Ditto.
(vfslide1up): Ditto.
(vfslide1down): Ditto.
(vluxei8): Ditto.
(vluxei16): Ditto.
(vluxei32): Ditto.
(vluxei64): Ditto.
(vsuxei8): Ditto.
(vsuxei16): Ditto.
(vsuxei32): Ditto.
(vsuxei64): Ditto.
(vluxseg): Ditto.
(vsuxseg): Ditto.
(vrgatherei16): Ditto.
(vlseg): Keep.
(vsseg): Keep.
(vlsseg): Keep.
(vssseg): Keep.
(vloxseg): Keep.
(vsoxseg): Keep.
(vlsegff): Keep.
* config/riscv/riscv-vector-builtins.cc (GTY): Split
registered_functions into multiple partitions.
(is_fractional_lmul): New function.
(xthvector_unsupported_p): Ditto.
(get_builtin_partition): Ditto.
(function_builder::add_function): Use new functions.
(lookup_registered_function): Ditto.
(builtin_decl): Use lookup_registered_function.
(gimple_fold_builtin): Ditto.
(expand_builtin): Ditto.
(check_builtin_call): Ditto.
(resolve_overloaded_builtin): Ditto.
* config/riscv/riscv-vector-builtins.h (enum required_ext):
(enum rvv_builtin_partition): New enum.
(required_ext_to_isa_name): Add NO_XTHEAD.
(required_extensions_specified): Ditto.
* config/riscv/riscv-vector-switch.def (ENTRY): Remove
XTheadVector.
(TUPLE_ENTRY): Ditto.
* config/riscv/riscv.cc (riscv_expand_mult_with_const_int): Fix
whitespace.
(riscv_legitimize_poly_move): Ditto.
(riscv_vector_fractional_lmul_p): New function.
(riscv_validate_vector_type): Use new function.
2026-01-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/123755
* tree-vect-stmts.cc (vectorizable_call): Register mask when
the call could trap.
2026-01-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/123756
* tree-vect-loop.cc (vect_transform_reduction): Remove
bogus assert.
2026-01-22 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123736
* tree-ssa-loop-unswitch.cc (hoist_guard): Guard dump message
on dump_file && (dump_flags & TDF_DETAILS) condition.
2026-01-22 David Malcolm <dmalcolm@redhat.com>
PR diagnostics/122622
* diagnostics/paths-output.cc: Include "diagnostics/file-cache.h".
(event_range::print_as_text): Generalize the fallback logic for
special locations to also cover the case where source-printing
will fail, and show the location for that case.
(event_range::print_as_html): Likewise.
(event_range::can_print_source_p): New.
2026-01-22 liuhongt <hongtao.liu@intel.com>
PR target/123631
* config/i386/i386-expand.cc (ix86_vector_duplicate_value):
Don't force CONST_INT to reg !TARGET_PREFER_BCST_FROM_INTEGER,
force it to mem instead.
* config/i386/i386.h (TARGET_PREFER_BCST_FROM_INTEGER): New macro.
* config/i386/x86-tune.def
(X86_TUNE_PREFER_BCST_FROM_INTEGER): New tune.
2026-01-21 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
PR target/122781
* config/s390/vector.md: Don't emulate vec_cmpgtu for 128-bit
integers for VXE3.
2026-01-20 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR rtl-optimization/123380
* combine.cc (gen_lowpart_for_combine): Don't try to create a
paradoxical SUBREG if it's going to be rejected by validate_subreg.
2026-01-20 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/123626
* config/riscv/vector.md (vxrm_mode): Handle CALL_INSNs, which set
the attribute to the new VXRM_MODE_CLOBBER state.
* config/riscv/riscv.cc (riscv_emit_mode_set): Don't emit code when
VXRM's state changes to VXRM_MODE_CLOBBER.
2026-01-20 Andrew MacLeod <amacleod@redhat.com>
PR tree-optimization/123314
* gimple-range.cc (gimple_ranger::range_on_entry): Do not check
ranger cache for an SSA_NAME with no BB.
(gimple_ranger::prefill_stmt_dependencies): Stop filling
dependencies when an out-of IL name is encountered.
2026-01-20 supers1ngular <supers1ngular@baylibre.com>
* doc/extend.texi: Swap samp fields to fix overfull hbox.
* doc/invoke.texi: Ditto.
2026-01-20 Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
PR c++/123639
* doc/invoke.texi: Add @item for -Wsfinae-incomplete.
2026-01-20 Nathan Sidwell <nathan@acm.org>
* diagnostics/context.cc (context::action_after_output): Print
invocation on ICE.
2026-01-20 David Malcolm <dmalcolm@redhat.com>
PR sarif-replay/123056
* libsarifreplay.cc (struct embedded_link): Move decl earlier.
(sarif_replayer::append_embeddded_link): New.
(sarif_replayer::make_plain_text_within_result_message): Move the
link-replay logic to the above, and skip the link part of
intra-sarif links.
2026-01-20 Georg-Johann Lay <avr@gjlay.de>
* config/avr/avr.cc (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P):
Return true when WITH_AVRLIBC.
2026-01-20 Alfie Richards <alfie.richards@arm.com>
* config/aarch64/aarch64.md: Update comment.
* config/aarch64/aarch64-simd.md: Change comment to refer to
aarch64.md.
* config/aarch64/aarch64-sme.md: Likewise.
* config/aarch64/aarch64-sve.md: Likewise.
* config/aarch64/aarch64-sve2.md: Likewise.
* config/aarch64/aarch64-sve-builtins.def: Update comment.
* config/aarch64/aarch64-sve-builtins-base.def: Update to refer
to aarch64-sve-builtins.def.
* config/aarch64/aarch64-sve-builtins-sme.def: Likewise.
* config/aarch64/aarch64-sve-builtins-sve2.def: Likewise.
2026-01-20 Jakub Jelinek <jakub@redhat.com>
PR target/123724
* config/aarch64/aarch64.cc (aarch64_possible_by_lane_insn_p): Ignore
debug stmts.
2026-01-20 Roger Sayle <roger@nextmovesoftware.com>
PR rtl-optimization/123585
* simplify-rtx.cc (simplify_context::simplify_binary_operation_1)
<case VEC_SELECT>: Correct gcc_assert when optimizing a vec_select
of a vec_select with differing vector lengths.
2026-01-20 Kyrylo Tkachov <ktkachov@nvidia.com>
PR target/123584
* config/aarch64/aarch64-sve2.md (@aarch64_sve2_xar<mode>): Use
aarch64_simd_rshift_imm predicate for rotate amount.
2026-01-20 Kyrylo Tkachov <ktkachov@nvidia.com>
PR target/123584
* config/aarch64/aarch64-simd.md (aarch64_xarqv2di): Leave zero
rotate amounts as zero during expansion.
(*aarch64_xarqv2di_insn): Account for zero rotate amounts. Print #
in rotate immediate.
2026-01-20 Prachi Godbole <pgodbole@nvidia.com>
* flag-types.h (enum lto_locality_heuristics): New enum.
* ipa-locality-cloning.cc (struct templ_info): New struct.
(struct locality_info): Add templ_info field.
(templ_hash_map): New hash_map.
(callee_templ_cmp): Ditto.
(static_profile_templ_cmp): Ditto.
(sort_templ_hashes_cmp): Ditto.
(order_templ_hashes): Ditto.
(locality_dc_template_p): Ditto.
(populate_templ_info): Ditto.
(create_locality_info): Call populate_templ_info.
(partition_callchain): Call callee_templ_cmp.
(locality_determine_static_order): Populate and sort templ_hash_map.
(locality_partition_and_clone): Handle lto_locality_heuristics.
(lc_execute): Initialize templ_hash_map.
* params.opt: New param.
2026-01-20 Prachi Godbole <pgodbole@nvidia.com>
* ipa-locality-cloning.cc (struct locality_callee_info): New struct.
(struct locality_info): Ditto.
(loc_infos): Ditto.
(get_locality_info): New function.
(sort_all_callees_default): Ditto.
(callee_default_cmp): Ditto.
(populate_callee_locality_info): Ditto.
(populate_caller_locality_info): Ditto.
(create_locality_info): Ditto.
(adjust_recursive_callees): Access node_to_clone by reference.
(inline_clones): Access node_to_clone and clone_to_node by reference.
(clone_node_as_needed): Ditto.
(accumulate_incoming_edge_frequency): Remove function.
(clone_node_p): New function.
(partition_callchain): Refactor the function.
(is_entry_node_p): Call local_p ().
(locality_determine_ipa_order): Call create_locality_info ().
(locality_determine_static_order): Ditto.
(locality_partition_and_clone): Update call to partition_callchain ()
according prototype.
(lc_execute): Allocate and free node_to_ch_info, node_to_clone,
clone_to_node.
2026-01-20 Richard Biener <rguenther@suse.de>
PR middle-end/123697
* gimple-fold.cc (gimple_fold_partial_load_store): Use an
empty CTOR for a zero else value in .MASK_LOAD_LANES.
2026-01-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/123729
* tree-vect-loop.cc (vect_create_epilog_for_reduction): Set
SSA_NAME_OCCURS_IN_ABNORMAL_PHI if the reduction flows
across an abnomal edge.
2026-01-20 Richard Biener <rguenther@suse.de>
* tree-phinodes.h (phi_arg_index_from_use): Use gphi *.
(phi_arg_edge_from_use): New helper composing
phi_arg_index_from_use and gimple_phi_arg_edge.
2026-01-19 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR rtl-optimization/121787
* config/riscv/riscv-vsetvl.cc (pre_vsetvl): Adjust call to
loop_optimizer_init to avoid making CFG changes.
2026-01-19 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/sol2.opt.urls: Regenerate.
* config/darwin.opt.urls: Likewise.
* config/dragonfly.opt.urls: Likewise.
* config/freebsd.opt.urls: Likewise.
* config/gnu-user.opt.urls: Likewise.
* config/hpux11.opt.urls: Likewise.
* config/i386/cygwin.opt.urls: Likewise.
* config/mingw/mingw.opt.urls: Likewise.
* config/netbsd.opt.urls: Likewise.
* config/openbsd.opt.urls: Likewise.
* config/rs6000/aix64.opt.urls: Likewise.
* config/rtems.opt.urls: Likewise.
2026-01-19 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/sol2.h (CPP_SUBTARGET_SPEC): Remove.
* config/sol2.opt (pthread): Ignore.
(pthreads): Likewise.
* config/i386/sol2.h (CPP_SPEC): Remove.
(SUBTARGET_CPU_EXTRA_SPECS): Remove cpp_subtarget.
* doc/invoke.texi (Solaris 2 Options, pthread): Remove.
2026-01-19 Jeff Law <jeffrey.law@oss.qualcomm.com>
Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/113666
* fold-const-call.cc (fold_const_vec_extract): New function.
(fold_const_call, case CFN_VEC_EXTRACT): Call it.
* match.pd (IFN_VEC_EXTRACT): Handle extraction from a uniform
vector.
2026-01-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/123061
PR tree-optimization/123636
* tree-ssa-loop-im.cc (fill_always_executed_in_1): Change
outer-to-inner to inner-to-outer iteration. Update inner
loop state only when always executed in an immediately
nested loop.
2026-01-19 Tobias Burnus <tburnus@baylibre.com>
* doc/install.texi (GCN): gfx9-4-generic requires LLVM 20.
2026-01-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/123602
* tree-ssa-pre.cc (find_or_generate_expression): Do not
generate references to abnormal SSA names.
2026-01-19 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* config.gcc: Deprecate -m31.
* doc/invoke.texi: Deprecate -m31.
2026-01-19 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123656
* tree-vect-generic.cc (expand_vector_mult): Fix up alg_sub_factor
handling. Fix up formatting in alg_add_t_m2 handling.
2026-01-19 Richard Biener <rguenther@suse.de>
PR target/123603
* config/i386/i386.opt (-param=ix86-vect-compare-costs=): Add.
* config/i386/i386.cc (ix86_autovectorize_vector_modes): Honor it.
* doc/invoke.texi (ix86-vect-compare-costs): Document.
2026-01-19 Lulu Cheng <chenglulu@loongson.cn>
PR target/117575
* config/loongarch/lasx.md: Modify the range of operand1.
2026-01-18 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123645
* tree-ssa-phiopt.cc (cond_removal_in_builtin_zero_pattern): Rewrite
the canonicalization of the args code based on e1/e2 being edges into
the join block.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
* config/darwin.opt.urls: Regenerated.
* config/dragonfly.opt.urls: Regenerated.
* config/freebsd.opt.urls: Regenerated.
* config/gnu-user.opt.urls: Regenerated.
* config/hpux11.opt.urls: Regenerated.
* config/i386/cygwin.opt.urls: Regenerated.
* config/i386/i386.opt.urls: Regenerated.
* config/mingw/mingw.opt.urls: Regenerated.
* config/nds32/nds32.opt.urls: Regenerated.
* config/netbsd.opt.urls: Regenerated.
* config/nvptx/nvptx.opt.urls: Regenerated.
* config/openbsd.opt.urls: Regenerated.
* config/pru/pru.opt.urls: Regenerated.
* config/riscv/riscv.opt.urls: Regenerated.
* config/rl78/rl78.opt.urls: Regenerated.
* config/rs6000/aix64.opt.urls: Regenerated.
* config/rs6000/rs6000.opt.urls: Regenerated.
* config/rs6000/sysv4.opt.urls: Regenerated.
* config/rtems.opt.urls: Regenerated.
* config/rx/rx.opt.urls: Regenerated.
* config/s390/s390.opt.urls: Regenerated.
* config/s390/tpf.opt.urls: Regenerated.
* config/sh/sh.opt.urls: Regenerated.
* config/sol2.opt.urls: Regenerated.
* config/sparc/sparc.opt.urls: Regenerated.
* config/v850/v850.opt.urls: Regenerated.
* config/vax/vax.opt.urls: Regenerated.
* config/vxworks.opt.urls: Regenerated.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/nds32/nds32.opt: Tidy documentation strings.
(mbig-endian, mlittle-endian): Remove "Undocumented" flag since
these are, in fact, documented.
* doc/invoke.texi (Option Summary) <NDS32 Options>: Document
-EB, -EL, -mabi, -mfloat-abi, -malways-align, -malign-functions,
-mfp-as-gp, -mext-dsp, -mext-fpu-fma, -mext-fpu-sp, -mext-fpu-dp,
-misr-vector-size, -misr-secure, -mcpu, -mconfig-fpu,
-mconfig-mul, -mconfig-register-ports, -mrelax-hint,
-msched-prolog-epilog, -mno-ret-in-naked-func, -malways-save-lp,
-munaligned-access, and -minline-asm-r15.
(NDS32 Options): Likewise.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/xtensa/uclinux.opt (elf2flt, elf2flt=): Mark as Undocumented.
* config/xtensa/xtensa.opt (mlra): Likewise.
* doc/invoke.texi (Option Summary) <Xtensa Options>: Remove
redundant negative forms plus obsolete -mfused-madd option.
(Xtensa Options): Likewise undocument -mfused-madd. List
negative form of -mforce-no-pic.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/i386/i386.opt (malign-functions): Mark undocumented/unused
option as Undocumented.
(malign-jumps): Likewise.
(malign-loops): Likewise.
(mbranch-cost, mforce-drap): Mark undocumented options likely
intended for developer use only as Undocumented.
(mstv): Correct sense of option in doc string.
(mavx512cd): Remove extra "and" from doc string.
(mavx512dq): Likewise.
(mavx512bw): Likewise.
(mavx512vl): Likewise.
(mavx512ifma): Likewise.
(mavx512bvmi): Likewise.
* doc/invoke.texi (Options Summary) <x86 Options>: Add
missing options. Correct whitespace and re-wrap long lines.
Remove -mthreads which is now classed as a MinGW option.
(Cygwin and MinGW Options): Replace existing documentation of
-mthreads with the more detailed text moved from x86 Options.
(x86 Options): Move introductory text about ISA extensions before
the individual options instead of after. Document them all
individually instead of as a group, and move immediately after
-march/-mtune documentation. Rewrap long lines. Document
interaction between SSE and AVX with -mfpmath=sse. Move -masm
documentation farther down instead of grouped with options
affecting floating-point behavior. Add missing @opindex
entries. Rewrite the -mdaz-ftz documentation. Document
-mstack-arg-probe. Copy-editing. Document -mstv. Remove
obsolete warning about -mskip-rax-setup in very old GCC versions.
Rewrite the -mapx-inline-asm-use-gpr32 documentation.
Document -mgather and -mscatter. Split -miamcu documentation
from -m32/-m64/etc. Rewrite -munroll-only-small-loops documentation.
Document -mdispatch-scheduler.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/invoke.texi (Option Summary) <VxWorks Options>: Add -mvthreads.
(VxWorks Options): Likewise.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/vms/vms.opt (map): Mark as Undocumented.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/visium/visium.opt (menable-trampolines): Mark Undocumented.
* doc/invoke.texi (Options Summary) <Visium Options>: Remove
redundant -mno- option.
(Visium Options): Copy-editing to put in active voice and add markup.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/vax/elf.opt (mno-asm-pic): Mark as Undocumented.
* doc/invoke.texi (Option Summary) <VAX Options>: Add
-mvaxc-alignment and -mqmath.
(VAX Options): Likewise.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/v850/v850.opt: Copy-edit documentation strings.
(mdebug): Make Undocumented.
(mno-strict-align): Add RejectNegative.
(mUS-bit-set): Make Undocumented.
* doc/invoke.texi (Option Summary) <V850 Options>: Remove
redundant -mno- forms from list. Add missing entries.
(V850 Options): Add @opindex for negative forms. Combine
entries for -mapp-regs and -mno-app-regs. Document -msmall-sld,
-mno-strict-align, and -mjump-tables-in-data-section.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/invoke.texi (Option Summary) <SPARC Options>: Remove
redundant -mno- forms from the list. Add -mptr32 and -mptr64.
(SPARC Options): Document -mptr32 and -mptr64.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* doc/invoke.texi (Option Summary) <Solaris 2 Options>:
Remove redundant negative option forms from list. List both
-pthread and -pthreads.
(Solaris 2 Options): Index and list the negative forms here.
Combine the two @table environments. Document both -pthread
and -pthreads.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/sh/sh.opt (mhitachi, mpadstruct): Mark obsolete options
as Undocumented.
* doc/invoke.texi (Option Summary) <SH Options>: Add missing
entries for -m4-* and other options. Remove redundant -mno- entries
and obsolete options. Add missing options -mfdpic, -mlra.
(SH Options): Combine entries for -mrenesas and -mno-renesas.
Index and list -mno- forms for other options that have them.
Remove documentation for obsolete options -mpadstruct and
-mfused-madd. Add documentation for -mlra. Copy-edit and wrap long
lines throughout the section.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/s390/s390.opt (mbranch-cost): Mark as Undocumented.
* config/s390/tpf.opt (mtpf-trace-hook-prologue-check=): Likewise.
(mtpf-trace-hook-prologue-target=): Likewise.
(mtpf-trace-hook-epilogue-check=): Likewise.
(mtpf-trace-hook-epilogue-target=): Likewise.
* doc/invoke.texi (Option Summary) <S/390 and zSeries Options>:
Remove redundant -mno- entries and add missing options. Make
entries with arguments match the syntax in the main documentation.
(S/390 and zSeries Options): Light copy-editing. Wrap overly-long
lines. Add missing @opindex entries. Add documention for
-mmain, -mno-pic-data-is-text-relative, -mindirect-branch,
-mindirect-branch-jump, -mindirect-branch-call,
-mfunction-return, -mfunction-return-mem, -mfunction-return-reg,
-mindirect-branch-table, -mfentry, -mrecord-mcount, -mnop-mcount,
-mpreserve-args, and -munaligned-symbols.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/rx/rx.opt (mgcc-abi, mrx-abi): Mark as Undocumented.
* doc/invoke.texi (Option Summary) <RX Options>: Remove redundant
entries for -mno-forms, correct name of -msmall-data-limit option,
add -mlra, clean up formatting.
(RX Options): Minor copy-editing, add -mlra.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
* config/rs6000/darwin.opt (Waltivec-long-deprecated): Mark as
Undocumented.
(faltivec, ffix-and-continue, findirect-data): Likewise.
* config/rs6000/rs6000.opt (mvrsave): Likewise.
* config/rs6000/sysv4.opt (mno-toc, mtoc, mno-traceback): Likewise.
(mshlib, mnewlib): Likewise.
* doc/invoke.texi (Option Summary) <RS/6000 and PowerPC Options>:
Document only one form of each option. Add missing options.
Correct whitespace.
(RS/6000 and PowerPC Options): Separately document -mpowerpc-gpopt,
-mpowerpc-gfxopt, -mpowerpc64, -mmfcrf, -mpopcntb, -mpopcntd,
-mfprnd, -mcmpb, and -mhard-dfp and move their documentation after
-mcpu=. Remove documentation for -mtoc which is unimplemented.
Add missing @opindex entries. Minor copy-editing and whitespace
fixes.
2026-01-17 Sandra Loosemore <sloosemore@baylibre.com>
PR other/122243
PR target/71340
* doc/invoke.texi (Option Summary) <RL78 Options>: Remove
never-implemented -m64bit-doubles and -m32bit-doubles options.
Add missing entries for -mrelax, -mes0, -mmul=rl78, -mcpu=rl78,
and -mrl78.
(RL78 Options): Likewise. Add missing @opindex entries.
Light copy-editing.
2026-01-17 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123513
* tree.cc (valid_new_delete_pair_p): If new_name[3] or delete_name[3]
is 'I', return false with *pcertain set to false rather than true.
2026-01-16 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* hierarchical_discriminator.cc (init_copyid_allocator): Walks the function
body to find existing max copyids per location.
(record_existing_copyid): New.
2026-01-16 Alice Carlotti <alice.carlotti@arm.com>
PR target/123460
* config.gcc: Accept hyphens in aarch64 --with-arch extensions.
2026-01-16 David Malcolm <dmalcolm@redhat.com>
PR analyzer/123145
* timevar.def (TV_ANALYZER_SUPERGRAPH): Rename to...
(TV_ANALYZER_SUPERGRAPH_CREATION): ...this.
(TV_ANALYZER_SUPERGRAPH_FIXUP_LOCATIONS): New.
(TV_ANALYZER_SUPERGRAPH_SIMPLIFY): New.
(TV_ANALYZER_SUPERGRAPH_SORTING): New.
2026-01-16 Vladimir N. Makarov <vmakarov@redhat.com>
PR target/123092
* lra-constraints.cc (lra_constraints): Push insn on processing
stack after equivalence substitution.
2026-01-16 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR pch/110746
* config/host-freebsd.cc: New file.
* config.host <*-*-freebsd*>: Use it.
* config/x-freebsd: New file.
2026-01-16 Martin Jambor <mjambor@suse.cz>
PR ipa/123412
* ipa-cp.cc (devirtualization_time_bonus): Do add the indirect
edge frequency at least once even for targets which cannot be
inlined.
2026-01-16 Jakub Jelinek <jakub@redhat.com>
PR target/123607
* config/i386/i386.md (movhf_mask): Change constraint on
match_operand 2's second alternative from 0C to 0.
2026-01-16 Lulu Cheng <chenglulu@loongson.cn>
PR target/123521
* config/loongarch/loongarch.cc
(loongarch_expand_vector_init_same): Fixed a bug in the
vector initialization section..
2026-01-16 David Guillen Fandos <david@davidgf.net>
* config/mips/mips.h (ISA_HAS_FMIN_FMAX): Add R5900;
note that, R5900 is not IEEE754 fully compatiable.
2026-01-15 Marek Polacek <polacek@redhat.com>
Jakub Jelinek <jakub@redhat.com>
PR c++/120775
PR c++/123081
PR c++/122634
* attribs.cc (attribute_value_equal): Return false if either attribute
is ATTR_UNIQUE_VALUE_P.
(merge_attributes): Handle lists with ATTR_UNIQUE_VALUE_P values.
* doc/invoke.texi: Document -freflection.
* dwarf2out.cc (is_base_type) <case default>: Check
TREE_CODE >= LAST_AND_UNUSED_TREE_CODE instead of is_cxx_auto.
(gen_type_die_with_usage): For TREE_CODE >= LAST_AND_UNUSED_TREE_CODE
trees use use DW_TAG_unspecified_type.
* tree-core.h (struct tree_base): Update a comment.
* tree.h (ATTR_UNIQUE_VALUE_P): Define.
(BINFO_BASE_ACCESSES): Update the comment.
2026-01-15 Peter Damianov <peter0x44@disroot.org>
PR driver/123504
* config/i386/cygming.h (EXTRA_DEFAULT_COMPILERS): Comment out
.res spec to allow COFF files with .res extension to pass
through to the linker.
* config/aarch64/cygming.h (EXTRA_DEFAULT_COMPILERS): Likewise.
2026-01-15 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* ira-lives.cc (ira_implicitly_set_insn_hard_regs): Honor hard
register constraints.
* ira.cc (ira_setup_alts): Ditto.
2026-01-15 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* doc/extend.texi: Document current limitations of hard register
constraints.
* stmt.cc (parse_output_constraint): Reject multiple hard
register constraints or a combination of hard register
constraints and regular register constraints in one alternative.
(parse_input_constraint): Ditto.
2026-01-15 Alfie Richards <alfie.richards@arm.com>
* config/aarch64/aarch64-simd.md: Add comment.
* config/aarch64/aarch64-sme.md: Likewise.
* config/aarch64/aarch64-sve-builtins-base.def: Likewise.
* config/aarch64/aarch64-sve-builtins-sme.def: Likewise.
* config/aarch64/aarch64-sve-builtins-sve2.def: Likewise.
* config/aarch64/aarch64-sve-builtins.def: Likewise.
* config/aarch64/aarch64-sve.md: Likewise.
* config/aarch64/aarch64-sve2.md: Likewise.
* config/aarch64/aarch64.md: Likewise.
2026-01-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/sparc/sparc.h (TARGET_SUN_TLS): Remove.
* config/sparc/sol2.h (TARGET_SUN_TLS): Likewise.
* config/sparc/sparc.cc (TARGET_ASM_OUTPUT_DWARF_DTPREL): Guard
with HAVE_GNU_AS.
(sparc_tls_got): Guard with !HAVE_GNU_AS.
(sparc_legitimize_tls_address): Likewise.
* config/sparc/sparc.md ("tls_delay_slot"): Likewise.
("@tie_add<P:mode>"): Likewise.
2026-01-15 Jakub Jelinek <jakub@redhat.com>
PR debug/121045
* tree-pretty-print.h (dump_location): Add new dump_flags_t
argument defaulted to TDF_NONE.
* tree-pretty-print.cc (dump_location): Add flags argument. Don't
print discriminator if TDF_COMPARE_DEBUG bit is set in flags.
(dump_block_node, dump_generic_node): Pass through flags to
dump_location.
* gimple-pretty-print.cc (dump_gimple_phi, pp_gimple_stmt_1,
dump_implicit_edges): Likewise.
(gimple_dump_bb_as_sarif_properties): Pass dump_flags to
dump_location.
* print-rtl.cc (rtx_writer::print_rtx_operand_code_L): If dump_flags
has TDF_COMPARE_DEBUG bit set, don't print discriminators.
2026-01-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/i386/sol2.h [!HAVE_GNU_AS] (ASM_CPU32_DEFAULT_SPEC): Use -m32.
(ASM_CPU64_DEFAULT_SPEC): Use -m64.
2026-01-15 Josef Melcr <josef.melcr@suse.com>
PR ipa/122852
* cgraph.cc (cgraph_node::verify_node): Verify that callback
edges are unreachable when the carrying edge is unreachable.
* ipa-fnsummary.cc (redirect_to_unreachable): Redirect callback
edges to unreachable when redirecting the carrying edge.
2026-01-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (gcc_cv_as_sparc_ua_pcrel): Remove.
(gcc_cv_as_sparc_ua_pcrel_hidden): Likewise.
* configure: Regenerate.
* config.in: Regenerate.
* config/sparc/sparc.h (ASM_PREFERRED_EH_DATA_FORMAT): Remove
!HAVE_AS_SPARC_UA_PCREL, !HAVE_AS_SPARC_UA_PCREL_HIDDEN support.
* config/sparc/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Remove.
* config/sparc/sparc.cc (TARGET_ASM_OUTPUT_DWARF_DTPREL): Remove
HAVE_AS_SPARC_UA_PCREL guard.
2026-01-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/sparc/sparc.h (TARGET_TLS): Define as HAVE_AS_TLS.
Update comment.
(TARGET_SUN_TLS): Define as 0.
(TARGET_GNU_TLS): Remove.
* config/sparc/freebsd.h (TARGET_SUN_TLS): Remove.
(TARGET_GNU_TLS): Remove.
* config/sparc/linux.h: Likewise.
* config/sparc/linux64.h: Likewise.
* config/sparc/sol2.h (TARGET_SUN_TLS): Redefine as 1.
Guard with HAVE_AS_TLS && !HAVE_GNU_AS.
(TARGET_GNU_TLS): Remove.
* config/sparc/sparc.cc (TARGET_ASM_OUTPUT_DWARF_DTPREL): Use
!TARGET_SUN_TLS in guard.
with !TARGET_SUN_TLS only.
* config/sparc/sparc.md ("tls_delay_slot"): Guard with
!TARGET_SUN_TLS.
2026-01-15 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR target/38118
* config/sparc/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Remove.
2026-01-15 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* cfgloopmanip.cc (duplicate_loop_body_to_header_edge): Assign
hierarchical discriminators for loop unrolling.
* cfgloopmanip.h (DLTHE_RECORD_HIERARCHICAL_DISCRIMINATOR): New flag.
* tree-ssa-loop-ivcanon.cc (try_unroll_loop_completely): Pass flag
to enable hierarchical discriminator assignment.
(try_peel_loop): Likewise.
2026-01-15 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* gimple-loop-versioning.cc (loop_versioning::version_loop): Assign
copyid discriminators to distinguish different loop versions.
2026-01-15 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* tree-vect-loop-manip.cc (vect_loop_versioning): Assign copyid
discriminators for vectorized and scalar loop versions.
* tree-vect-loop.cc (vect_transform_loop): Assign copyid
discriminators for vectorized and scalar loop versions.
2026-01-15 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* Makefile.in: Add hierarchical_discriminator.o to OBJS.
* hierarchical_discriminator.cc: New file.
* hierarchical_discriminator.h: New file.
* function.h (copyid_alloc): New.
* input.cc (location_with_discriminator_components): New function.
(get_discriminator_components_from_loc): Likewise.
* input.h (DISCR_BASE_BITS): New constant.
(DISCR_MULTIPLICITY_BITS): Likewise.
(DISCR_COPYID_BITS): Likewise.
(DISCR_UNUSED_BITS): Likewise.
(DISCR_BASE_MASK): Likewise.
(DISCR_MULTIPLICITY_MASK): Likewise.
(DISCR_COPYID_MASK): Likewise.
(DISCR_BASE_SHIFT): Likewise.
(DISCR_MULTIPLICITY_SHIFT): Likewise.
(DISCR_COPYID_SHIFT): Likewise.
(DISCR_BASE_MAX): Likewise.
(DISCR_MULTIPLICITY_MAX): Likewise.
(DISCR_COPYID_MAX): Likewise.
(location_with_discriminator_components): New function declaration.
(get_discriminator_components_from_loc): Likewise.
2026-01-15 DengJianbo <dengjianbo@loongson.cn>
* config/loongarch/loongarch.md: Remove condition in template
movdi_symbolic_off64.
2026-01-14 Peter Bergner <bergner@tenstorrent.com>
PR target/123092
* config/riscv/constraints.md (ZD): Disable when xmipscbop is disabled.
2026-01-14 Martin Jambor <mjambor@suse.cz>
PR ipa/123542
* ipa-cp.cc (ipa_value_from_jfunc): Always use
ipacp_value_safe_for_type. Bail out if parm_type is NULL.
2026-01-14 Wilco Dijkstra <wilco.dijkstra@arm.com>
PR target/121240
* config/aarch64/aarch64.md (mov<mode>): Expand FP immediates early.
* config/aarch64/aarch64.cc (aarch64_select_rtx_section): Force
immediates <= 8 bytes to constdata.
(aarch64_rtx_costs): Increase cost of CONST_DOUBLE loaded from memory.
2026-01-14 Wilco Dijkstra <wilco.dijkstra@arm.com>
PR target/114528
* config/aarch64/aarch64.cc (aarch64_check_mov_add_imm12):
New function to check and emit MOV+ADD/SUB immediates.
(aarch64_internal_mov_immediate): Add support for MOV+ADD/SUB
immediates.
2026-01-14 Tejas Belagod <tejas.belagod@arm.com>
PR middle-end/123392
* cfgexpand.cc (expand_debug_expr): Handle variable-length initializer
for CONSTRUCTOR.
2026-01-14 Jakub Jelinek <jakub@redhat.com>
PR middle-end/123115
* defaults.h (EH_RETURN_DATA_REGNO): Add void (N) to the macro
definition inside of a comma expression before INVALID_REGNUM.
2026-01-14 Jakub Jelinek <jakub@redhat.com>
PR target/120250
* combine.cc (recog_for_combine): Don't try to put SET_SRC
into a constant pool if SET_DEST is pc_rtx.
2026-01-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/123190
* tree-vectorizer.h (vect_load_store_data): Add n_loads member.
* tree-vect-stmts.cc (get_load_store_type): Record the
number of required loads for permuted loads.
(vectorizable_load): Make use of this when costing loads
for VMAT_CONTIGUOUS[_REVERSE].
2026-01-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/123190
* tree-vect-loop.cc (vect_analyze_loop_costing): Allow
vectorizing loops with a single scalar iteration iff the
vectorization factor is 1.
2026-01-14 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/123544
* simplify-rtx.cc (simplify_context::simplify_binary_operation_1)
<case AND>: Don't canonicalize (subreg (lshiftrt (x cnt)) low) into
(lshiftrt (subreg x low) cnt) if the SUBREG is paradoxical.
2026-01-14 Prathamesh Kulkarni <prathameshk@nvidia.com>
* auto-profile.cc: (string_table::filenames): New method.
(function_instance::timestamp_): New member.
(function_instance::timestamp): New accessor for timestamp_ member.
(function_instance::set_timestamp): New function.
(function_instance::prop_timestamp): Likewise.
(function_instance::prop_timestamp_1): Likewise.
(function_instance::function_instance): Initialize timestamp_ to 0.
(function_instance::read_function_instance): Adjust prototype by
replacing head_count with toplevel param with default value true, and
stream in head_count and timestamp values from gcov file.
(autofdo::timestamp_info_map): New std::map.
(autofdo_source_profile::get_function_instance_by_decl): New argument
filename with default value NULL.
(autofdo_source_profile::read): Populate timestamp_info_map and
propagate timestamp to inlined instances from toplevel function.
(afdo_annotate_cfg): Assign node->tp_first_run based on
timestamp_info_map and bail out of annotation if
param_auto_profile_reorder_only is enabled.
* params.opt: New param auto-profile-reorder-only.
2026-01-14 Lili Cui <lili.cui@intel.com>
* config/i386/x86-tune.def (X86_TUNE_ALIGN_TIGHT_LOOPS):
disable tight loop alignment for m_CORE_ATOM.
2026-01-14 Daniel Barboza <daniel.barboza@oss.qualcomm.com>
* match.pd: remove 'fold_overflow_warning' references.
* tree.h (TYPE_OVERFLOW_UNDEFINED): remove note telling
that we must use warn_strict_overflow for every optimization
based on TYPE_OVERFLOW_UNDEFINED.
2026-01-13 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* match.pd (`(T1)(a bit_op (T2)b)`): Remove redundant
type checks.
2026-01-13 Pengxuan Zheng <pengxuan.zheng@oss.qualcomm.com>
PR tree-optimization/123109
* fold-const.cc (fold_binary_loc): Remove (X >> C) NE/EQ 0 -> X LT/GE 0
folding.
* match.pd (`(X >> C) NE/EQ 0 -> X LT/GE 0`): New pattern.
2026-01-13 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/119402
* match.pd (`(a*zero_one_valued_p) & b`): New pattern.
2026-01-13 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/123312
* ifcvt.cc (noce_try_cond_zero_arith): Rename to ...
(noce_try_cond_arith): This. For AND try `cmp ? a : -1`
also to see which one cost less.
(noce_process_if_block): Handle the rename.
2026-01-13 Jonathan Yong <10walls@gmail.com>
* config/i386/winnt-utf8.manifest: enable longPathAware.
2026-01-13 Jonathan Yong <10walls@gmail.com>
PR driver/108865
* config/i386/winnt-utf8.manifest: correct XML tags
2026-01-13 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR tree-optimization/123530
* match.pd (reassociating xor to enable rotations): Verify constants
fit into a uhwi before trying to extract them as a uhwi.
2026-01-13 Richard Biener <rguenther@suse.de>
PR middle-end/123573
* fold-const.cc (fold_vec_perm): Actually check, not assert,
that input and output vector element numbers agree.
* match.pd (vec_perm @0 @1 @2): Make sure element numbers
are the same when folding to an input vector and wrap that
inside a VIEW_CONVERT_EXPR.
2026-01-13 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123525
* tree-ssa-forwprop.cc (simplify_vector_constructor): Use
converted source type for conversion bit field ref.
2026-01-13 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123301
* tree-if-conv.cc (convert_scalar_cond_reduction):
Disallow vector types.
2026-01-13 Robin Dapp <rdapp@oss.qualcomm.com>
PR rtl-optimization/123501
PR rtl-optimization/123444
* rtlanal.cc (nonzero_bits1): Use operand mode instead of
operation mode.
2026-01-13 Jakub Jelinek <jakub@redhat.com>
PR libstdc++/123396
* configure.ac (gcc_cv_ld_use_as_needed_ldscript): New test.
(USE_LD_AS_NEEDED_LDSCRIPT): New AC_DEFINE.
* gcc.cc (LINK_LIBATOMIC_SPEC): Use "-latomic_asneeded" instead
of LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
if USE_LD_AS_NEEDED_LDSCRIPT is defined.
(init_gcc_specs): Use "-lgcc_s_asneeded" instead of
LD_AS_NEEDED_OPTION " -lgcc_s " LD_NO_AS_NEEDED_OPTION
if USE_LD_AS_NEEDED_LDSCRIPT is defined.
* config.in: Regenerate.
* configure: Regenerate.
2026-01-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/123539
* tree-vect-loop.cc (vect_create_epilog_for_reduction):
Use the compute vectype to pun down to smaller or element
size for by-element reductions.
2026-01-13 Kito Cheng <kito.cheng@sifive.com>
* tree-ssa-sccvn.cc (vn_walk_cb_data::push_partial_def): Use
build_bitint_type for BITINT_TYPE when maxsizei exceeds
MAX_FIXED_MODE_SIZE.
2026-01-13 Kito Cheng <kito.cheng@sifive.com>
PR target/117581
* config/riscv/riscv.cc (riscv_bitint_type_info): New function.
(TARGET_C_BITINT_TYPE_INFO): Define.
2026-01-13 liuhongt <hongtao.liu@intel.com>
PR target/123484
* config/i386/mmx.md (divv4hf3): Add TARGET_MMX_WITH_SSE to
the condition.
(cmlav4hf4): Ditto.
(cmla_conjv4hf4): Ditto.
(cmulv4hf3): Ditto.
(cmul_conjv4hf3): Ditto.
2026-01-12 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/122845
PR tree-optimization/122843
* match.pd (`(T1)(a bit_op (T2)b)`): Also
simplify if T1 is the same type as b and T2 is wider
type than T1.
2026-01-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/123528
* tree-vect-patterns.cc (vect_recog_bool_pattern): Restore
INTEGRAL_TYPE_P check but also allow SCALAR_FLOAT_TYPE_P.
2026-01-12 Martin Jambor <mjambor@suse.cz>
PR ipa/123543
* ipa-cp.cc (propagate_bits_across_jump_function): Fix test for
recipient_only_p.
2026-01-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/122830
PR tree-optimization/122824
* tree-ssa-sccvn.cc (vn_reference_lookup_3): Generalize
aggregate copy handling when no variable offsets are
involved.
2026-01-12 Richard Biener <rguenther@suse.de>
* tree-ssa-sccvn.cc (vn_reference_lookup_3): Only tentatively
accumulate extra_off when tentatively consuming components
during aggregate copy handling.
2026-01-12 Richard Biener <rguenther@suse.de>
PR middle-end/123175
* match.pd (vec_perm @0 @1 @2): Fixup for inputs having a
different number of elements than the result.
* tree-vect-generic.cc (lower_vec_perm): Likewise.
2026-01-12 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/123523
* simplify-rtx.cc (simplify_const_binary_operation): Use
DImode for VOIDmode shift and truncation counts if int_mode
is narrower than HOST_BITS_PER_WIDE_INT rather than
word_mode if int_mode it is narrower than BITS_PER_WORD.
2026-01-12 Dhruv Chawla <dhruvc@nvidia.com>
* auto-profile.cc (autofdo_source_profile::offline_unrealized_inlines):
Add missing check for in_map.
2026-01-11 Michal Jires <mjires@suse.cz>
* asm-toplevel.cc (mark_fragile_ref_by_asm):
Add marked_local to handle symbol as local.
(ipa_asm_heuristics): New.
(class pass_ipa_asm): New.
(make_pass_ipa_asm_lgen): New.
(make_pass_ipa_asm_wpa): New.
* common.opt: New flto-toplevel-asm-heuristics.
* passes.def: New asm passes.
* timevar.def (TV_IPA_LTO_ASM): New.
* tree-pass.h (make_pass_ipa_asm_lgen): New.
(make_pass_ipa_asm_wpa): New.
2026-01-11 Michal Jires <mjires@suse.cz>
* asm-toplevel.cc (mark_fragile_ref_by_asm): New.
(struct constraint_data): New.
(walk_through_constraints): Handle .local definitions.
(analyze_toplevel_extended_asm): Propagate constraint_data.
2026-01-11 Michal Jires <mjires@suse.cz>
* cgraph.h: Add must_remain_in_tu_*.
* cgraphclones.cc (cgraph_node::create_clone): Propagate
must_remain_in_tu_body.
* cif-code.def (MUST_REMAIN_IN_TU): New.
* ipa-icf.cc (sem_function::equals_wpa): Check
must_remain_in_tu_*
(sem_variable::equals_wpa): Likewise.
* ipa-inline-transform.cc (inline_call): Propagate
must_remain_in_tu_body.
* ipa-inline.cc (can_inline_edge_p): Check
must_remain_in_tu_body.
* lto-cgraph.cc (lto_output_node): Output must_remain_in_tu_*
(lto_output_varpool_node): Likewise.
(input_overwrite_node): Input must_remain_in_tu_*.
(input_varpool_node): Likewise.
* tree.cc (decl_address_ip_invariant_p): Check
must_remain_in_tu_name.
* varpool.cc (varpool_node::ctor_useable_for_folding_p): Check
must_remain_in_tu_body.
2026-01-11 Michal Jires <mjires@suse.cz>
* lto-cgraph.cc (compute_ltrans_boundary): Add symbols
referenced from asm_nodes.
* lto-streamer-out.cc (lto_output): Move adding asm_nodes
to...
* passes.cc (ipa_write_summaries): ...here.
2026-01-11 Michal Jires <mjires@suse.cz>
* ipa-free-lang-data.cc (find_decls_types_in_asm): New.
(free_lang_data_in_cgraph): Use find_decls_types_in_asm.
* lto-cgraph.cc (input_cgraph_1): Move asm to..
(input_toplevel_asms): ..here.
* lto-streamer-in.cc (lto_input_toplevel_asms):
Allow extended asm.
* lto-streamer-out.cc (lto_output_toplevel_asms):
Allow extended asm.
(lto_output_toplevel_asms): Allow ASM_EXPR.
* lto-streamer.h (input_toplevel_asms): New.
2026-01-11 Michal Jires <mjires@suse.cz>
PR ipa/122458
* Makefile.in: Add new file.
* cgraph.h (analyze_toplevel_extended_asm): New.
* cgraphunit.cc (symbol_table::finalize_compilation_unit):
Call analyze_toplevel_extended_asm.
* asm-toplevel.cc: New file.
2026-01-11 Michal Jires <mjires@suse.cz>
* cgraph.cc (cgraph_node_cannot_be_local_p_1): Check ref_by_asm.
(cgraph_node::verify_node): Likewise.
* cgraph.h (cgraph_node::only_called_directly_or_aliased_p):
Likewise.
(cgraph_node::can_remove_if_no_direct_calls_and_refs_p):
Likewise.
(varpool_node::can_remove_if_no_refs_p): Likewise.
(varpool_node::all_refs_explicit_p): Likewise.
* cgraphunit.cc (symtab_node::needed_p): Likewise.
(analyze_functions): Likewise.
* gimple-ssa-pta-constraints.cc (refered_from_nonlocal_fn):
Likewise.
(refered_from_nonlocal_var): Likewise.
(ipa_create_global_variable_infos): Likewise.
* ipa-comdats.cc (ipa_comdats): Likewise.
* ipa-visibility.cc (cgraph_externally_visible_p): Likewise.
(varpool_node::externally_visible_p): Likewise.
* ipa.cc (symbol_table::remove_unreachable_nodes): Likewise.
* lto-cgraph.cc (lto_output_node): Output ref_by_asm.
(lto_output_varpool_node): Likewise.
(input_overwrite_node): Input ref_by_asm.
(input_varpool_node): Likewise.
* symtab.cc (address_matters_1): Check ref_by_asm.
2026-01-11 Hans-Peter Nilsson <hp@axis.com>
* config/cris/cris.cc (cris_rtx_costs) <POST_INC>: Handle POST_INC
as ZERO_EXTEND and SIGN_EXTEND, i.e. as an operator without cost.
2026-01-10 Jeff Law <jeffrey.law@oss.qualcomm.com>
* config/mcore/mcore.h (ASM_OUT_ADDR_DIFF_ELT): Remove.
2026-01-10 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* config/s390/s390-modes.def (FLOAT_MODE): Add HF mode.
(VECTOR_MODE): Add V{1,2,4,8,16}HF modes.
* config/s390/s390.cc (s390_scalar_mode_supported_p): For 64-bit
targets z10 and newer support HF mode.
(s390_vector_mode_supported_p): Add HF mode.
(s390_register_move_cost): Keep HF mode operands in registers.
(s390_legitimate_constant_p): Support zero constant.
(s390_secondary_reload): For GPR to FPR moves a secondary reload
register is required.
(s390_secondary_memory_needed): GPR<->FPR moves don't require
secondary memory.
(s390_libgcc_floating_mode_supported_p): For 64-bit targets z10
and newer support HF mode.
(s390_hard_regno_mode_ok): Allow HF mode for FPRs and VRs.
(s390_function_arg_float): Consider HF mode, too.
(s390_excess_precision): For EXCESS_PRECISION_TYPE_FLOAT16
return FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16.
(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define.
* config/s390/s390.md (movhf): Define.
(reload_half_gprtofpr_z10): Define.
(signbithf2): Define.
* config/s390/vector.md: Add new vector modes to various
iterators.
2026-01-10 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123417
* tree-cfgcleanup.cc (maybe_remove_forwarder_block): Always
protect latches.
2026-01-10 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123431
* gimple-range-op.cc (gimple_range_op_handler::maybe_builtin_call):
Punt if type-generic builtins with a single argument don't have
exactly one argument. For returns_arg punt if call doesn't have
at least one argument.
2026-01-09 Robin Dapp <rdapp@oss.qualcomm.com>
PR tree-optimization/123414
* tree-ssa-forwprop.cc (simplify_vector_constructor):
Use ssizetype as mask type.
2026-01-09 Jakub Jelinek <jakub@redhat.com>
* config/loongarch/genopts/gen-evolution.awk: Update
copyright year.
(copyright_header): Separate parts of Copyright word
with " " so that it doesn't get matched by update-copyright.py.
(gen_full_header, gen_full_source, gen_full_def): Include
2026 year in the ranges.
2026-01-09 David Malcolm <dmalcolm@redhat.com>
* channels.h (gcc::topics::analyzer_events::subscriber): New
forward decl.
(compiler_channels::analyzer_events_channel): New field.
* doc/plugins.texi (PLUGIN_ANALYZER_INIT): Delete.
* plugin.cc (register_callback): Delete PLUGIN_ANALYZER_INIT.
(invoke_plugin_callbacks_full): Likewise.
* plugin.def (PLUGIN_ANALYZER_INIT): Delete this event.
2026-01-09 David Malcolm <dmalcolm@redhat.com>
* Makefile.in (OBJS): Add tree-diagnostic-cfg.o.
(OBJS-libcommon): Add custom-sarif-properties/cfg.o,
diagnostics/digraphs-to-dot.o, and
diagnostics/digraphs-to-dot-from-cfg.o.
* cfghooks.cc: Define INCLUDE_VECTOR. Add includes of
"diagnostics/sarif-sink.h" and "custom-sarif-properties/cfg.h".
(dump_bb_as_sarif_properties): New.
* cfghooks.h (diagnostics::sarif_builder): New forward decl.
(json::object): New forward decl.
(cfg_hooks::dump_bb_as_sarif_properties): New callback field.
(dump_bb_as_sarif_properties): New decl.
* cfgrtl.cc (rtl_cfg_hooks): Populate the new callback
field with rtl_dump_bb_as_sarif_properties.
(cfg_layout_rtl_cfg_hooks): Likewise.
* custom-sarif-properties/cfg.cc: New file.
* custom-sarif-properties/cfg.h: New file.
* diagnostics/digraphs-to-dot-from-cfg.cc: New file, partly
adapted from gcc/graph.cc.
* diagnostics/digraphs-to-dot.cc: New file.
* diagnostics/digraphs-to-dot.h: New file, based on material in...
* diagnostics/digraphs.cc: Include
"diagnostics/digraphs-to-dot.h".
(class conversion_to_dot): Rework and move to above.
(make_dot_graph_from_diagnostic_graph): Likewise.
(make_dot_node_from_digraph_node): Likewise.
(make_dot_edge_from_digraph_edge): Likewise.
(conversion_to_dot::get_dot_id_for_node): Likewise.
(conversion_to_dot::has_edges_p): Likewise.
(digraph::make_dot_graph): Use to_dot::converter::make and invoke
the result to make the dot graph.
* diagnostics/digraphs.h (digraph:get_all_nodes): New accessor.
* diagnostics/html-sink.cc
(html_builder::m_per_logical_loc_graphs): New field.
(html_builder::add_graph_for_logical_loc): New.
(html_sink::report_digraph_for_logical_location): New.
* diagnostics/sarif-sink.cc (sarif_array_of_unique::get_element):
New.
(sarif_builder::report_digraph_for_logical_location): New.
(sarif_sink::report_digraph_for_logical_location): New.
* diagnostics/sink.h: Include "diagnostics/logical-locations.h".
(sink::report_digraph_for_logical_location): New vfunc.
* diagnostics/text-sink.h
(text_sink::report_digraph_for_logical_location): New.
* doc/invoke.texi (fdiagnostics-add-output): Clarify wording.
Distinguish between scheme-specific vs GCC-specific keys, and add
"cfgs" as the first example of the latter.
* gimple-pretty-print.cc: Include "cfghooks.h", "json.h", and
"custom-sarif-properties/cfg.h".
(gimple_dump_bb_as_sarif_properties): New.
* gimple-pretty-print.h (diagnostics::sarif_builder): New forward
decl.
(json::object): Likewise.
(gimple_dump_bb_as_sarif_properties): New.
* graphviz.cc (get_compass_pt_from_string): New
* graphviz.h (get_compass_pt_from_string): New decl.
* libsarifreplay.cc (sarif_replayer::handle_graph_object): Fix
overlong line.
* opts-common.cc: Define INCLUDE_VECTOR.
* opts-diagnostic.cc: Define INCLUDE_LIST. Include
"diagnostics/sarif-sink.h", "tree-diagnostic-sink-extensions.h",
"opts-diagnostic.h", and "pub-sub.h".
(class gcc_extra_keys): New class.
(opt_spec_context::opt_spec_context): Add "client_keys" param and
pass to dc_spec_context.
(handle_gcc_specific_keys): New.
(try_to_make_sink): New.
(gcc_extension_factory::singleton): New.
(handle_OPT_fdiagnostics_add_output_): Rework to use
try_to_make_sink.
(handle_OPT_fdiagnostics_set_output_): Likewise.
* opts-diagnostic.h: Include "diagnostics/sink.h".
(class gcc_extension_factory): New.
* opts.cc: Define INCLUDE_LIST.
* print-rtl.cc: Include "dumpfile.h", "cfghooks.h", "json.h", and
"custom-sarif-properties/cfg.h".
(rtl_dump_bb_as_sarif_properties): New.
* print-rtl.h (diagnostics::sarif_builder): New forward decl.
(json::object): Likewise.
(rtl_dump_bb_as_sarif_properties): New decl.
* tree-cfg.cc (gimple_cfg_hooks): Use
gimple_dump_bb_as_sarif_properties for new callback field.
* tree-diagnostic-cfg.cc: New file, based on material in graph.cc.
* tree-diagnostic-sink-extensions.h: New file.
* tree-diagnostic.cc: Define INCLUDE_LIST. Include
"tree-diagnostic-sink-extensions.h".
(compiler_ext_factory): New.
(tree_diagnostics_defaults): Set gcc_extension_factory::singleton
to be compiler_ext_factory.
2026-01-09 David Malcolm <dmalcolm@redhat.com>
* channels.h: New file.
* context.cc: Define INCLUDE_LIST. Include "channels.h".
(gcc::context::context): Create m_channels.
(gcc::context::~context): Delete it.
* context.h (struct compiler_channels): New forward decl.
(gcc::context::get_channels): New accessor.
(gcc::context::m_channels): New field.
* passes.cc: Define INCLUDE_LIST. Include "topics/pass-events.h"
and "channels.h".
(execute_one_pass): If the global context's pass_events_channel
has subscribers, publish before_pass and after_pass events to it.
* topics/pass-events.h: New file.
2026-01-09 David Malcolm <dmalcolm@redhat.com>
* Makefile.in (OBJS-libcommon): Add pub-sub.o.
* pub-sub.cc: New file.
* pub-sub.h: New file.
* selftest-run-tests.cc (selftest::run_tests): Call
selftest::pub_sub_cc_tests.
* selftest.h (selftest::pub_sub_cc_tests): New decl.
2026-01-09 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR target/123457
* config/aarch64/aarch64-sve-builtins.cc (struct registered_function_hasher):
Change base class to ggc_ptr_hash.
(initial_indexes): Mark with GTY.
(function_table): Likewise.
(handle_arm_sve_h): Allocate function_table from ggc instead of heap.
2026-01-09 Jakub Jelinek <jakub@redhat.com>
* doc/invoke.texi (-x): Add c++-system-module, objc-cpp-output,
objc++-cpp-output, adascil, adawhy, modula-2, modula-2-cpp-output,
rust, algol68 and lto as further possible option arguments.
2026-01-09 Vladimir N. Makarov <vmakarov@redhat.com>
PR rtl-optimization/123121
* lra-remat.cc (bad_for_rematerialization_p): Consider div/mod ops.
(operand_to_remat): Exclude rematerialization of insns with
multiple sets.
2026-01-09 Peter Bergner <bergner@tenstorrent.com>
PR target/123492
* config/riscv/riscv-cores.def (RISCV_CORE)<tt-ascalon-d8>: Add missing
extensions via use of rva23s64 profile and adding zkr, smaia, smmpm,
smnpm, smrnmi, smstateen, ssaia, ssstrict, svadu.
2026-01-09 Martin Jambor <mjambor@suse.cz>
* ipa-cp.h (class ipcp_bits_lattice): New members set_recipient_only,
recipient_only_p and m_recipient_only.
(class ipcp_vr_lattice): Likewise.
(ipcp_vr_lattice::init): Initialize also m_recipient_only.
* ipa-cp.cc (ipcp_bits_lattice::print): Adjust printting to also
print the new flag.
(ipcp_vr_lattice::print): Likewise.
(ipcp_vr_lattice::set_recipient_only): New function.
(ipcp_bits_lattice::set_recipient_only): Likewise.
(set_all_contains_variable): New parameter MAKE_SIMPLE_RECIPIENTS, set
bits and vr lattices to recibient only insted to bottom when it is
true.
(initialize_node_lattices): Pass true to the second parameter of
set_all_contains_variable.
(propagate_bits_across_jump_function): Treat recipient_only source
lattices like bottom.
(propagate_vr_across_jump_function): Likewise.
(ipcp_store_vr_results): Skip non-local nodes.
2026-01-09 Martin Jambor <mjambor@suse.cz>
* ipa-cp.cc (good_cloning_opportunity_p): Dump a message when
bailing out early too.
(find_more_scalar_values_for_callers_subset): Rename to
find_scalar_values_for_callers_subset, collect constants regardless of
what is already in the vector. Remove dumping.
(find_more_contexts_for_caller_subset): Rename to
find_contexts_for_caller_subset, collect contexts regardless of what
is already in the vector. Remove dumping.
(find_aggregate_values_for_callers_subset): Rename to
find_aggregate_values_for_callers_subset_gc, implement using new
functions.
(find_aggregate_values_for_callers_subset_1): New function.
(find_aggregate_values_for_callers_subset): Likewise.
(copy_known_vectors_add_val): Removed.
(dump_reestimation_message): New function.
(decide_about_value): Remove formal parameter avals, compute it
independently, and use it to estimate local cloning effects.
(struct cloning_opportunity_ranking): New type.
(compare_cloning_opportunities): New function.
(cloning_opportunity_ranking_evaluation): Likewise.
(decide_whether_version_node): Pre-sort candidates for cloning before
really evaluating them. Calculate context independent values only
when considering versioning for all contexts.
(ipcp_val_agg_replacement_ok_p): Renamed to
ipcp_val_replacement_ok_p, check also non-aggregate values.
2026-01-09 Alexandre Oliva <oliva@gnu.org>
PR target/119430
* config/arm/arm.cc (arm_function_ok_for_sibcall): Disable
sibcalls for long-calls that use all call-clobbered
general-purpose registers, including the static chain.
2026-01-09 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* config/s390/s390.cc (print_operand): Align %cN with %N.
* config/s390/s390.md: Remove comment.
2026-01-09 Filip Kastl <fkastl@suse.cz>
PR c/123212
* opts.cc: Enable -fbit-tests and -fjump-tables at -Og.
2026-01-09 Alfie Richards <alfie.richards@arm.com>
* config/aarch64/aarch64-builtins.cc
(aarch64_expand_pragma_builtin): Add case for FMMLA.
* config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins):
Add new __ARM_FEATURE_X macros.
* config/aarch64/aarch64-simd-pragma-builtins.def
(vmmlaq_f16_mf8): New intrinsic.
(vmmlaq_f32_mf8): Likewise.
* config/aarch64/aarch64-simd.md
(@aarch64_<insn><VDQ_HSF_FMMLA:mode>): New instruction.
* config/aarch64/aarch64-sve-builtins-base.cc: Update mmla_impl
for new instructions.
* config/aarch64/aarch64-sve-builtins-shapes.cc
(struct mmla_def): Add support for the new widening forms.
* config/aarch64/aarch64-sve-builtins-sve2.def (svmmla) Add new
intrinsics.
* config/aarch64/aarch64-sve-builtins.cc (TYPES_cvt_narrow_s):
Fix comment.
* config/aarch64/aarch64-sve2.md
(@aarch64_sve2_<sve_fp_op><SVE_FULL_HSF_FMMLA:mode><VNx16QI_ONLY:mode>): New instruction.
(@aarch64_sve2_<sve_fp_op><VNx4SF_ONLY:mode><VNx8HF_ONLY:mode>): Likewise.
* config/aarch64/aarch64.h (TARGET_F8F32MM): New macro.
(TARGET_F8F16MM): Likewise.
(TARGET_SVE_F16F32MM): Likewise.
* config/aarch64/iterators.md (insn): Add fmmla entry.
(VDQ_HSF_FMMLA): New iterator.
(SVE_FULL_HSF_FMMLA): Likewise.
2026-01-09 Christophe Lyon <christophe.lyon@linaro.org>
* config/arm/arm-builtins.cc (arm_init_simd_builtin_types): Remove
TARGET_HAVE_MVE condition.
(class arm_target_switcher): New.
(arm_init_mve_builtins): Remove calls to
arm_init_simd_builtin_types and
arm_init_simd_builtin_scalar_types. Switch to MVE isa flags.
(arm_init_neon_builtins): Remove calls to
arm_init_simd_builtin_types and
arm_init_simd_builtin_scalar_types.
(arm_need_mve_mode_regs): New.
(arm_need_neon_mode_regs): New.
(arm_target_switcher::arm_target_switcher): New.
(arm_target_switcher::~arm_target_switcher): New.
(arm_init_builtins): Call arm_init_simd_builtin_scalar_types and
arm_init_simd_builtin_types. Always call arm_init_mve_builtins
and arm_init_neon_builtins.
2026-01-09 Jakub Jelinek <jakub@redhat.com>
PR target/123489
* config/i386/i386-builtin.def (__builtin_ia32_cvttsd2sis64_round,
__builtin_ia32_cvttsd2usis64_round, __builtin_ia32_cvttss2sis64_round,
__builtin_ia32_cvttss2usis64_round): Require OPTION_MASK_ISA_64BIT.
2026-01-09 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR rtl-optimization/123491
* ifcvt.cc (noce_try_cond_zero_arith): Reject non-scalar
integer modes for the inner mode of the subreg.
2026-01-09 Shreya Munnangi <smunnangi1@ventanamicro.com>
Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/121778
* match.pd: Add pattern to recognize rotate with one or more
bits flipped via xor.
* config/sh/sh.md (*rotcl); New variant which handles the output
we get after the match.pd change above.
2026-01-09 Jeff Law <jeffrey.law@oss.qualcomm.com>
* config/riscv/andes-23-series.md: Clamp reservations to 7c.
* config/riscv/andes-25-series.md: Likewise.
* config/riscv/andes-45-series.md: Likewise.
* config/riscv/generic.md: Likewise.
* config/riscv/mips-p8700.md: Likewise.
* config/riscv/sifive-7.md: Likewise.
* config/riscv/spacemit-x60.md: Likewise.
2026-01-09 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
PR gcov-profile/123019
* auto-profile.cc (auto_profile): Call execute_fixup_cfg.
2026-01-09 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
PR ipa/123383
* cgraph.cc (cgraph_edge::get_next_speculative_id): Check
lto_stmt_uid in get_next_speculative_id.
2026-01-08 Jakub Jelinek <jakub@redhat.com>
PR middle-end/111817
* stmt.cc (parse_input_constraint): For matching construct, goto
before the loop without changing j instead of break. Remove comment
about that problem.
2026-01-08 Robin Dapp <rdapp@ventanamicro.com>
PR target/122846
* config/riscv/riscv-opts.h (enum rvv_max_lmul_enum): Add
RVV_CONV_DYNAMIC.
(TARGET_MAX_LMUL): Ditto.
* config/riscv/riscv-string.cc (use_vector_stringop_p): Use
LMUL1 for RVV_CONV_DYNAMIC.
(expand_rawmemchr): Ditto.
(expand_strcmp): Ditto.
(check_vectorise_memory_operation): Ditto.
* config/riscv/riscv-vector-costs.cc (get_smallest_mode):
New function.
(compute_lmul_from_conversion_ratio): Calculate LMUL from
largest/smallest type.
(costs::has_unexpected_spills_p): Split.
(costs::compute_live_ranges_and_lmul): Compute smallest type and
call new function.
(costs::cleanup_live_range_data): New function.
(costs::compute_conversion_dynamic_lmul): New function.
(costs::record_potential_unexpected_spills): Use new function.
(costs::better_main_loop_than_p): Allow appropriate LMUL.
* config/riscv/riscv-vector-costs.h: Declare.
* config/riscv/riscv.opt: New option
-mrvv-max-lmul=conv-dynamic.
2026-01-08 Qing Zhao <qing.zhao@oracle.com>
* doc/extend.texi: Update doc to support pointers inside structures.
2026-01-08 Olivier Hainque <hainque@adacore.com>
Alexandre Oliva <oliva@adacore.com>
* config.gcc [x86_64-*-*]: Match *abi32 target, default to m32
abi. Accept 32 or m32 for --with-abi.
2026-01-08 Jonathan Wakely <jwakely@redhat.com>
* doc/invoke.texi (C++ Dialect Options): Fix typo in
documentation of -flang-info-module-cmi.
2026-01-08 Aleksandar Rakic <aleksandar.rakic@htecgroup.com>
* Makefile.in: Add with_multi_buildlist for multilib
configuration control. Pass an additional argument to
genmultilib indicating whether --with-multi-buildlist is set
(true or false). Use with_multi_buildlist to filter
multilib directories in fixinc_list.
* configure: Regenerate.
* configure.ac: Restrict the installed fixedincludes multilibs.
* configure.tgt: New file.
* doc/install.texi: Add --with-multi-buildlist configure option
for multilib filtering.
* genmultilib: Document the new eleventh argument indicating
whether --with-multi-buildlist configure option is set (true or
false). Update argument parsing to include this flag before
enable_multilib. Modify reuse rule validation:
- Keep the original error for reuse of nonexistent multilibs
when --with-multi-buildlist is not used.
- Suppress the error only when the new configure option is
active, allowing reuse rules to reference multilibs that are
intentionally excluded from the build.
2026-01-08 Tomas Glozar <tglozar@gmail.com>
* config/ia64/ia64.cc (MAX_VECT_LEN): Set to 16 from 8.
2026-01-08 Robin Dapp <rdapp.gcc@gmail.com>
PR target/123268
* gimple-match-exports.cc (convert_conditional_op): Check if
orig_op->type and type of else value match.
2026-01-08 Richard Sandiford <rdsandiford@googlemail.com>
Richard Biener <rguenther@suse.de>
PR tree-optimization/122793
* tree-vect-slp.cc (vect_add_slp_permutation): Document the existing
identity_offset parameter. Handle identities that take from the
second input rather than the first.
2026-01-08 Richard Biener <rguenther@suse.de>
PR tree-optimization/123310
* tree-ssa-sccvn.cc (vn_reference_lookup_3): Properly
test against unknown offset.
2026-01-08 Richard Biener <rguenther@suse.de>
PR tree-optimization/123298
* tree-ssa-alias.h (get_continuation_for_phi): Take a gphi *,
add is_backedge hook argument.
(walk_non_aliased_vuses): Add is_backedge hook argument.
* tree-ssa-alias.cc (maybe_skip_until): Adjust.
(get_continuation_for_phi): Use new hook to classify an
edge into the PHI as backedge.
(walk_non_aliased_vuses): Adjust.
* gimple-lower-bitint.cc (bitint_dom_walker::before_dom_children):
Likewise.
* ipa-prop.cc (determine_known_aggregate_parts): Likewise.
* tree-ssa-scopedtables.cc (avail_exprs_stack::lookup_avail_expr):
Likewise.
* tree-ssa-pre.cc (translate_vuse_through_block): Likewise.
* tree-ssa-sccvn.cc (vn_bb_to_rpo): Make BB to RPO order
mapping accessible from new hook.
(do_rpo_vn_1): Likewise.
(vn_is_backedge): New hook to classify edge.
(vn_reference_lookup_pieces): Adjust.
(vn_reference_lookup): Likewise.
2026-01-08 Richard Biener <rguenther@suse.de>
* tree-vect-stmts.cc (vectorizable_shift): Improve missing
optab or optab support messages.
(vectorizable_operation): Likewise.
2026-01-08 Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org>
* config/s390/s390.cc (s390_logical_operator_ok_p): Test for
volatile memory.
(s390_mem_constraint): Remove volatile condition.
* config/s390/s390.md (*andc_split_<mode>): Test for volatile
memory.
2026-01-08 Richard Biener <rguenther@suse.de>
PR middle-end/123107
* fold-const.cc (fold_binary_loc): Guard (v >> CST) == { 0, 0.. }
to v < { 0, 0.. } folding.
2026-01-08 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
PR tree-optimization/123382
* tree-if-conv.cc: Reject VEC_PERM_EXPR for factoring
if it is the mask and they are constant.
2026-01-08 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* cse.cc (cse_find_path): Change follow_jumps to bool.
2026-01-07 Tomas Glozar <tglozar@gmail.com>
PR target/121535
* config/ia64/ia64.cc (TARGET_ZERO_CALL_USED_REGS): Override
function with target-specific one.
(struct gcc_target): Move to end of file.
(ia64_zero_call_used_regs): Add target-specific function.
2026-01-07 Xinhui Yang <cyan@cyano.uk>
* config.gcc: limit -lunwind usage by testing if the system
libunwind is being used.
2026-01-07 Xi Ruoyao <xry111@xry111.site>
PR target/123320
* config/loongarch/loongarch.md (<optab><mode>3): Only expand
using psuedos when can_create_pseudo_p ().
(addsi3): Likewise.
2026-01-07 Andrew MacLeod <amacleod@redhat.com>
PR tree-optimization/123300
* gimple-range-gori.cc (gori_map::exports_and_deps): New.
* gimple-range-gori.h (exports_and_deps): New prototype.
(FOR_EACH_GORI_EXPORT_AND_DEP_NAME): New macro.
* tree-vrp.cc (remove_unreachable:remove_unreachable): Initialize
m_tmp bitmap.
(remove_unreachable:~remove_unreachable): Dispose of m_tmp bitmap.
(remove_unreachable:fully_replaceable): Move from static function
and check reachability of exports and dependencies.
2026-01-07 Andrew MacLeod <amacleod@redhat.com>
PR tree-optimization/123319
* value-range.cc (irange::intersect): If there is a bitmask, snap
subranges after creating them.
2026-01-07 Daniel Barboza <daniel.barboza@oss.qualcomm.com>
PR tree-optimization/102486
* match.pd (`popcount (X & -X) -> -X != 0`): New pattern.
2026-01-07 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/119291
PR rtl-optimization/121773
* combine.cc (try_combine): Check that SET_DEST (setN) is neither
modified_between_p nor reg_used_between_p instead of just not
reg_used_between_p or pc_rtx.
2026-01-07 Richard Earnshaw <rearnsha@arm.com>
PR target/123390
* config/arm/arm.cc (arm_gen_constant): Fix types of HWI literals.
(arm_const_double_prefer_rsbs_rsc): Likewise.
2026-01-07 Alfie Richards <alfie.richards@arm.com>
* config/aarch64/aarch64.cc (aarch64_parse_fmv_features): Add parsing
for priority arguments.
(aarch64_process_target_version_attr): Update call to
aarch64_parse_fmv_features.
(get_feature_mask_for_version): Update call to
aarch64_parse_fmv_features.
(aarch64_compare_version_priority): Add logic to order by priority if present.
(aarch64_functions_b_resolvable_from_a): Update call to
aarch64_parse_fmv_features.
(aarch64_mangle_decl_assembler_name): Update call to
aarch64_parse_fmv_features.
(dispatch_function_versions): Add logic to sort by priority.
(aarch64_same_function_versions): Add diagnostic if invalid use of
priority syntax.
(aarch64_merge_decl_attributes): Add logic to make suer priority
arguments are preserved.
(aarch64_check_target_clone_version): Update call to
aarch64_parse_fmv_features.
2026-01-07 Alfie Richards <alfie.richards@arm.com>
* target.def (TARGET_OPTION_SAME_FUNCTION_VERSIONS): Update
documentation.
* tree.cc (disjoint_version_decls): Change for new NULL parameter
to same_function_versions.
(diagnose_versioned_decls): Update to pass diagnostic location to
same_function_versions.
* doc/tm.texi: Regenerate.
* config/aarch64/aarch64.cc (aarch64_same_function_versions):
Update hook impl for new arguments.
* config/riscv/riscv.cc (riscv_same_function_versions): Update
hook impl for new arguments.
* config/loongarch/loongarch.cc
(loongarch_same_function_versions): Likewise
* hooks.cc (hook_stringslice_stringslice_unreachable): Changed
to...
(hook_stringslice_consttree_stringslice_consttree_unreachable):
...this and add extra arguments.
* hooks.h (hook_stringslice_stringslice_unreachable): Changed
to...
(hook_stringslice_consttree_stringslice_consttree_unreachable):
and add extra arguments.
2026-01-07 Martin Jambor <mjambor@suse.cz>
* params.opt (param_ipa_cp_sweeps): New.
* doc/invoke.texi (ipa-cp-sweeps): New.
* ipa-cp.cc (max_number_sweeps): New.
(get_max_overall_size): New parameter cur_sweep, use it and the total
number of sweeps from the NODE to calculate the result too.
(ipcp_propagate_stage): Get the maximum number of sweeps specified in
the corresponding parameter of any possibly affected node.
(good_cloning_opportunity_p): Add parameter cur_sweep, adjust the
threshold according to it.
(decide_about_value): New parameter cur_sweep, pass it to
get_max_overall_size and to good_cloning_opportunity_p.
(decide_whether_version_node): New parameter cur_sweep, pass it to
decide_about_value and get_max_overall_size. Make sure the node is
not dead.
(ipcp_decision_stage): Make multiple sweeps over the call-graph.
2026-01-07 Martin Jambor <mjambor@suse.cz>
* ipa-prop.h (ipa_node_params): Remove member do_clone_for_all_contexts.
(ipa_node_params::ipa_node_params): Do not initialize
do_clone_for_all_contexts.
* ipa-cp.cc (gather_context_independent_values): Remove parameter
calculate_aggs, calculate them always.
(estimate_local_effects): Move the decision whether to clone for
all context...
(decide_whether_version_node): ...here. Fix dumps.
(decide_about_value): Adjust alignment in dumps.
2026-01-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/123315
* tree-vect-loop.cc (vect_analyze_loop_2): Reset
LOOP_VINFO_USING_DECREMENTING_IV_P before retrying.
2026-01-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/123221
* tree-vect-loop.cc (vectorizable_reduction): When we did not
find the non-conversion reduction operation, bail.
2026-01-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/123316
* tree-vect-loop.cc (vectorizable_reduction): Detect missing
PHI patterns for bools.
2026-01-07 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR debug/123259
* toplev.cc (process_options): Guard CTF non-C warning by
-Wcomplain-wrong-lang.
* doc/invoke.texi (Warning Options, -Wno-complain-wrong-lang):
Document effect on -gctf/-gsctf.
2026-01-07 Siddhesh Poyarekar <siddhesh@gotplt.org>
PR tree-optimization/123374
* gimple-ssa-warn-access.cc (pass_waccess::set_pass_param): Add
a second parameter.
(pass_waccess::check_call): Skip access checks for waccess2.
(pass_waccess::execute): Drop initialization of
M_CHECK_DANGLING_P.
* passes.def: Adjust.
2026-01-06 Sebastian Huber <sebastian.huber@embedded-brains.de>
* tree-profile.cc (tree_profiling): Do not use atomic operations
if they are not available. Try to use at least partial atomic
updates as a fallback.
2026-01-06 Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
* config/xtensa/xtensa.h (EPILOGUE_USES): New macro definition.
* config/xtensa/xtensa.md (return):
Remove '(use (reg:SI A0_REG))' from the template description, and
reload_completed from the condition.
(sibcall_epilogue): Remove emitting '(use (reg:SI A0_REG))'.
2026-01-06 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
* tree-if-conv.cc (ifcvt_can_predicate): Add check for
normal builtins.
2026-01-06 Richard Ball <Richard.Ball@arm.com>
* config/aarch64/aarch64-builtins.cc
(enum aarch64_builtins): New builtin flag.
(aarch64_init_pcdphint_builtins): New builtin function.
(aarch64_expand_pldir_builtin): Expander for new intrinsic.
(aarch64_general_expand_builtin): Call new expander.
* config/aarch64/aarch64.md
(aarch64_pldir): New pattern for instrinsic.
* config/aarch64/arm_acle.h
(__attribute__): New call to builtin.
(__pldir): Likewise.
2026-01-06 Richard Ball <Richard.Ball@arm.com>
* config/aarch64/aarch64-builtins.cc
(enum aarch64_builtins): Add new flags.
(aarch64_init_pcdphint_builtins): Create new Builtin functions.
(aarch64_general_init_builtins): Call init for PCDPHINT.
(aarch64_expand_stshh_builtin): Expander for new intrinsic.
(aarch64_general_expand_builtin): Call new expander.
* config/aarch64/aarch64-c.cc
(aarch64_update_cpp_builtins): New feature.
* config/aarch64/aarch64.h (TARGET_PCDPHINT): Likewise.
* config/aarch64/arm_acle.h
(__atomic_store_with_stshh): Generic to call builtins.
* config/aarch64/atomics.md
(@aarch64_atomic_store_stshh<mode>): New pattern for intrinsic.
* config/aarch64/iterators.md: New UNSPEC.
2026-01-06 Eric Botcazou <ebotcazou@adacore.com>
PR target/121192
* expr.cc (store_constructor) <VECTOR_TYPE>: Disable the special
trick for uniform boolean vectors with integer modes and single-bit
mask entries on big-endian platforms.
2026-01-06 Eric Botcazou <ebotcazou@adacore.com>
* doc/install.texi (Prerequisites): Remove reference to Ada in
conjunction with GCC 9.5 and adjust its GCC version requirement.
2026-01-06 Jakub Jelinek <jakub@redhat.com>
Marco Falke <falke.marco@gmail.com>
PR tree-optimization/123351
* tree-object-size.cc (object_sizes_set_temp): Separate calls to
make_ssa_name to ensure deterministic execution order.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
* tree-vect-stmts.cc (vectorizable_call): Handle trapping math.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
* tree-if-conv.cc (ifcvt_can_predicate): Support gimple_call_builtin_p.
(if_convertible_stmt_p, predicate_rhs_code,
predicate_statements): Likewise.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
* match.pd: Add COND_FMA to COND_FMS rewrite rules.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
* doc/md.texi: Document them
* internal-fn.cc (FOR_EACH_COND_FN_PAIR, internal_fn_else_index): Add
SQRT, CEIL, FLOOR, ROUND and RINT.
* internal-fn.def (IFN_COND_SQRT, IFN_COND_CEIL, IFN_COND_FLOOR,
IFN_COND_ROUND, IFN_COND_RINT, IFN_COND_LEN_SQRT, IFN_COND_LEN_CEIL,
IFN_COND_LEN_FLOOR, IFN_COND_LEN_ROUND, IFN_COND_LEN_RINT): New.
* optabs.def (cond_rint_optab, cond_sqrt_optab, cond_round_optab,
cond_ceil_optab, cond_floor_optab, cond_len_rint_optab,
cond_len_sqrt_optab, cond_len_round_optab, cond_len_ceil_optab,
cond_len_floor_optab): New.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR tree-optimization/122103
* gimple.cc (gimple_could_trap_p_1): Handle __builtin_ calls.
2026-01-05 Jeff Law <jeffrey.law@oss.qualcomm.com>
* config/riscv/riscv-string.cc (expand_block_move): Restore using
inlined memcpy/memmove for unknown counts if the param hasn't been
specified.
(expand_vec_setmem): Similarly for memset.
2026-01-05 Pan Li <pan2.li@intel.com>
PR target/123317
* config/riscv/autovec-opt.md: Take zero_extend for
both the vwaddu and vwsubu wx pattern.
2026-01-05 Alice Carlotti <alice.carlotti@arm.com>
* config/aarch64/aarch64-sme.md
(aarch64_sme_write_zt): Add TARGET_STREAMING requirement.
(aarch64_sme_lut_zt): Ditto.
2026-01-05 Alice Carlotti <alice.carlotti@arm.com>
* doc/invoke.texi: Fix incorrect function name.
2026-01-05 Pan Li <pan2.li@intel.com>
* tree-vect-slp.cc (vec_slp_has_scalar_use): Adjust the
depth_limit from 2 to 3.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR target/121290
* config/aarch64/aarch64.cc (aarch64_possible_by_lane_insn_p): New.
(aarch64_vector_costs): Add m_num_dup_stmts and m_num_total_stmts.
(aarch64_vector_costs::add_stmt_cost): Use them.
(adjust_body_cost): Likewise.
2026-01-05 Tamar Christina <tamar.christina@arm.com>
PR target/123017
* config/aarch64/aarch64-json-schema.h: Add br_mispredict_factor.
* config/aarch64/aarch64-json-tunings-parser-generated.inc
(parse_branch_costs): Add br_mispredict_factor.
* config/aarch64/aarch64-json-tunings-printer-generated.inc
(serialize_branch_costs): Add br_mispredict_factor.
* config/aarch64/aarch64-protos.h (struct cpu_branch_cost): Add
br_mispredict_factor.
* config/aarch64/aarch64.cc (aarch64_max_noce_ifcvt_seq_cost,
aarch64_noce_conversion_profitable_p,
TARGET_MAX_NOCE_IFCVT_SEQ_COST,
TARGET_NOCE_CONVERSION_PROFITABLE_P): New.
* config/aarch64/tuning_models/generic.h (generic_branch_cost): Add
br_mispredict_factor.
* config/aarch64/tuning_models/generic_armv8_a.h: Remove
generic_armv8_a_branch_cost and use generic_branch_cost.
2026-01-04 Andrew Pinski <andrew.pinski@oss.qualcomm.com>
* configure: Regenerate.
2026-01-04 Jeff Law <jeffrey.law@oss.qualcomm.com>
* config/riscv/riscv.cc (riscv_conditional_register_usage): Revert
patch that made VXRM a global register.
2026-01-04 Keith Packard <keithp@keithp.com>
* config.gcc: Add clause for picolibc.
* config/picolibc-spec.h: New file.
* config/picolibc.opt: Likewise.
* config/picolibc.opt.urls: Likewise.
* configure.ac: Add support for --with-picolibc.
* configure: Rebuilt.
* doc/invoke.texi: Document picolibc options.
* doc/tm.texi.in (LIBC_CPP_SPEC): Document.
(LIBC_LINK_SPEC): Similarly.
* doc/tm.texi: Rebuilt.
* gcc.cc (LIBC_CPP_SPEC): Provide default definition.
(LIBC_LINK_SPEC): Likewise.
(cpp_spec): Include LIBC_CPP_SPEC.
(link_spec): Similarly for LIBC_LINK_SPEC.
2026-01-04 Jeff Law <jeffrey.law@oss.qualcomm.com>
* doc/contrib.texi: Add Kazumoto & Oleg.
2026-01-04 Richard Braun <rbraun@sceen.net>
* config/c6x/c6x-sched.md.in (mpydp_m_N__CROSS_,
mpyspdp_m_N__CROSS_, mpysp2dp_m_N__CROSS_): Update reservations.
* config/c6x/c6x-sched.md: Regenerated.
* config/c6x/c6x.md (m1dp, m1spdp, m2dp, m2spdp): New CPU units.
2026-01-04 Kalvis Duckmanton <kalvisd@gmail.com>
* config/host-netbsd.cc (netbsd_gt_pch_use_address): Support PCH
loading at addresses other than its preferred address.
* config/host-openbsd.cc (openbsd_gt_pch_use_address): Likewise.
2026-01-04 Daniel Barboza <daniel.barboza@oss.qualcomm.com>
PR tree-optimization/122608
* match.pd (`(c ? a : b) op d -> c ? (a op d) : (b op d)`): New
pattern.
(`d op (c ? a : b) -> c ? (d op a) : (d op b)`): Likewise
2026-01-04 Jeff Law <jeffrey.law@oss.qualcomm.com>
PR target/123010
* simplify-rtx.cc (simplify_binary_operation_1, case ASHIFT): Simplify
case where a left shift of the sign extracted field can be turned into
a sign extension of a left shift.
2026-01-03 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/123372
* tree-ssa-math-opts.cc
(build_saturation_binary_arith_call_and_replace): Pass type of op_0
rather than type of lhs as second argument to
direct_internal_fn_supported_p.
2026-01-02 Iain Sandoe <iain@sandoe.co.uk>
* config/aarch64/aarch64-sve-builtins-shapes.cc
(INCLUDE_ALGORITHM): Define.
2026-01-01 Kugan Vivekanandarajah <kvivekananda@nvidia.com>
* cgraph.cc (cgraph_edge::get_next_speculative_id): New.
* cgraph.h (cgraph_edge::get_next_speculative_id): New.
* ipa-devirt.cc (ipa_devirt): Use get_next_speculative_id
in make_speculative.
2026-01-01 Jakub Jelinek <jakub@redhat.com>
* gcc.cc (process_command): Update copyright notice dates.
* gcov-dump.cc (print_version): Ditto.
* gcov.cc (print_version): Ditto.
* gcov-tool.cc (print_version): Ditto.
* gengtype.cc (create_file): Ditto.
* doc/cpp.texi: Bump @copying's copyright year.
* doc/cppinternals.texi: Ditto.
* doc/gcc.texi: Ditto.
* doc/gccint.texi: Ditto.
* doc/gcov.texi: Ditto.
* doc/install.texi: Ditto.
* doc/invoke.texi: Ditto.
Copyright (C) 2026 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
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