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This patch continues the work of making ACLE intrinsics use VNx16BI for svbool_t results. It deals with the non-widening integer forms of svcmp*. The handling of the PTEST patterns is similar to that for the earlier svwhile* patch. Unfortunately, on its own, this triggers a failure in the pred_clobber_*.c tests. The problem is that, after the patch, we have a comparison instruction followed by a move into p0. Combine combines the instructions together, so that the destination of the comparison is the hard register p0 rather than a pseudo. This defeats IRA's make_early_clobber_and_input_conflicts, which requires the source and destination to be pseudo registers. Before the patch, there was a subreg move between the comparison and the move into p0, so it was that subreg move that ended up with a hard register destination. Arguably the fix for PR87600 should be extended to destination registers as well as source registers, but in the meantime, the patch just disables combine for these tests. The tests are really testing the constraints and register allocation. gcc/ * config/aarch64/aarch64-sve.md (@aarch64_pred_cmp<cmp_op><mode>_acle) (*aarch64_pred_cmp<cmp_op><mode>_acle, *cmp<cmp_op><mode>_acle_cc) (*cmp<cmp_op><mode>_acle_and): New patterns that yield VNx16BI results for all element types. * config/aarch64/aarch64-sve-builtins-base.cc (svcmp_impl::expand): Use them. (svcmp_wide_impl::expand): Likewise when implementing an svcmp_wide against an in-range constant. gcc/testsuite/ * gcc.target/aarch64/sve/pred_clobber_1.c: Disable combine. * gcc.target/aarch64/sve/pred_clobber_2.c: Likewise. * gcc.target/aarch64/sve/pred_clobber_3.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpeq_2.c: Add more cases. * gcc.target/aarch64/sve/acle/general/cmpeq_4.c: New test. * gcc.target/aarch64/sve/acle/general/cmpge_1.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpge_2.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpge_3.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpge_4.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpgt_1.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpgt_2.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpgt_3.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpgt_4.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmple_1.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmple_2.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmple_3.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmple_4.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmplt_1.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmplt_2.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmplt_3.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmplt_4.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpne_1.c: Likewise. * gcc.target/aarch64/sve/acle/general/cmpne_2.c: Likewise.
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