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Fix c/2728 

From-SVN: r42195
This commit is contained in:
Bernd Schmidt 2001-05-17 11:26:04 +00:00 committed by Bernd Schmidt
parent 8d2b611685
commit 2e2ed7d22d
2 changed files with 11 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-05-17 Bernd Schmidt <bernds@redhat.com>
* stmt.c (expand_asm_operands): For inout operands, make sure
the substitution of '=' for '+' makes it into the rtl.
2001-05-17 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* gcc.texi (gccbug): Refer to the web pages for detailed information

8
gcc/stmt.c
View File

@ -1328,6 +1328,8 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
rtx *real_output_rtx = (rtx *) alloca (noutputs * sizeof (rtx));
enum machine_mode *inout_mode
= (enum machine_mode *) alloca (noutputs * sizeof (enum machine_mode));
const char **output_constraints
= alloca (noutputs * sizeof (const char *));
/* The insn we have emitted. */
rtx insn;
int old_generating_concat_p = generating_concat_p;
@ -1426,6 +1428,7 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
message. */
constraint = TREE_STRING_POINTER (TREE_PURPOSE (tail));
output_constraints[i] = constraint;
c_len = strlen (constraint);
/* Allow the `=' or `+' to not be at the beginning of the string,
@ -1455,6 +1458,7 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
memcpy (buf + 1, constraint, j);
memcpy (buf + 1 + j, p + 1, c_len - j); /* not -j-1 - copy null */
constraint = ggc_alloc_string (buf, c_len);
output_constraints[i] = constraint;
if (j)
warning (
@ -1824,7 +1828,7 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
if (noutputs == 1 && nclobbers == 0)
{
ASM_OPERANDS_OUTPUT_CONSTRAINT (body)
= TREE_STRING_POINTER (TREE_PURPOSE (outputs));
= output_constraints[0];
insn = emit_insn (gen_rtx_SET (VOIDmode, output_rtx[0], body));
}
@ -1853,7 +1857,7 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line)
gen_rtx_ASM_OPERANDS
(GET_MODE (output_rtx[i]),
TREE_STRING_POINTER (string),
TREE_STRING_POINTER (TREE_PURPOSE (tail)),
output_constraints[i],
i, argvec, constraints,
filename, line));