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alpha: Fix duplicate !tlsgd!62 assemble error [PR115526]

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Add missing "cannot_copy" attribute to instructions that have to
stay in 1-1 correspondence with another insn.

	PR target/115526

gcc/ChangeLog:

	* config/alpha/alpha.md (movdi_er_high_g): Add cannot_copy attribute.
	(movdi_er_tlsgd): Ditto.
	(movdi_er_tlsldm): Ditto.
	(call_value_osf_<tls>): Ditto.

gcc/testsuite/ChangeLog:

	* gcc.target/alpha/pr115526.c: New test.
This commit is contained in:
Uros Bizjak
2024-07-17 18:11:26 +02:00
parent 3412b6e994
commit 0841fd4c42
2 changed files with 53 additions and 3 deletions
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10
gcc/config/alpha/alpha.md
View File

@@ -3902,7 +3902,8 @@
else
return "ldq %0,%2(%1)\t\t!literal!%3";
}
[(set_attr "type" "ldsym")])
[(set_attr "type" "ldsym")
(set_attr "cannot_copy" "true")])
(define_split
[(set (match_operand:DI 0 "register_operand")
@@ -3926,7 +3927,8 @@
return "lda %0,%2(%1)\t\t!tlsgd";
else
return "lda %0,%2(%1)\t\t!tlsgd!%3";
})
}
[(set_attr "cannot_copy" "true")])
(define_insn "movdi_er_tlsldm"
[(set (match_operand:DI 0 "register_operand" "=r")
@@ -3939,7 +3941,8 @@
return "lda %0,%&(%1)\t\t!tlsldm";
else
return "lda %0,%&(%1)\t\t!tlsldm!%2";
})
}
[(set_attr "cannot_copy" "true")])
(define_insn "*movdi_er_gotdtp"
[(set (match_operand:DI 0 "register_operand" "=r")
@@ -5908,6 +5911,7 @@
"HAVE_AS_TLS"
"ldq $27,%1($29)\t\t!literal!%2\;jsr $26,($27),%1\t\t!lituse_<tls>!%2\;ldah $29,0($26)\t\t!gpdisp!%*\;lda $29,0($29)\t\t!gpdisp!%*"
[(set_attr "type" "jsr")
(set_attr "cannot_copy" "true")
(set_attr "length" "16")])
;; We must use peep2 instead of a split because we need accurate life

46
gcc/testsuite/gcc.target/alpha/pr115526.c Normal file
View File

@@ -0,0 +1,46 @@
/* PR target/115526 */
/* { dg-do assemble } */
/* { dg-options "-O2 -Wno-attributes -fvisibility=hidden -fPIC -mcpu=ev4" } */
struct _ts {
struct _dtoa_state *interp;
};
struct Bigint {
int k;
} *_Py_dg_strtod_bs;
struct _dtoa_state {
struct Bigint p5s;
struct Bigint *freelist[];
};
extern _Thread_local struct _ts _Py_tss_tstate;
typedef struct Bigint Bigint;
int pow5mult_k;
long _Py_dg_strtod_ndigits;
void PyMem_Free();
void Bfree(Bigint *v) {
if (v)
{
if (v->k)
PyMem_Free();
else {
struct _dtoa_state *interp = _Py_tss_tstate.interp;
interp->freelist[v->k] = v;
}
}
}
static Bigint *pow5mult(Bigint *b) {
for (;;) {
if (pow5mult_k & 1) {
Bfree(b);
if (b == 0)
return 0;
}
if (!(pow5mult_k >>= 1))
break;
}
return 0;
}
void _Py_dg_strtod() {
if (_Py_dg_strtod_ndigits)
pow5mult(_Py_dg_strtod_bs);
}