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re PR middle-end/38338 (__builtin_apply causes an ICE on x86)

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PR middle-end/38338
	* builtins.c (expand_builtin_apply_args): Put before parm_birth_insn
	only if internal_arg_pointer is a non-virtual pseudo.

	* gcc.dg/pr38338.c: New test.

From-SVN: r142480
This commit is contained in:
Jakub Jelinek 2008-12-05 17:52:16 +01:00 committed by Jakub Jelinek
parent c187a21f76
commit 1f21b6f4ad
4 changed files with 37 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-12-05 Jakub Jelinek <jakub@redhat.com>
PR middle-end/38338
* builtins.c (expand_builtin_apply_args): Put before parm_birth_insn
only if internal_arg_pointer is a non-virtual pseudo.
2008-12-05 Joseph Myers <joseph@codesourcery.com>
* config/rs6000/rs6000.md (move_from_CR_gt_bit): Enable for

10
gcc/builtins.c
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@ -1434,9 +1434,15 @@ expand_builtin_apply_args (void)
/* Put the insns after the NOTE that starts the function.
If this is inside a start_sequence, make the outer-level insn
chain current, so the code is placed at the start of the
function. */
function. If internal_arg_pointer is a non-virtual pseudo,
it needs to be placed after the function that initializes
that pseudo. */
push_topmost_sequence ();
emit_insn_before (seq, parm_birth_insn);
if (REG_P (crtl->args.internal_arg_pointer)
&& REGNO (crtl->args.internal_arg_pointer) > LAST_VIRTUAL_REGISTER)
emit_insn_before (seq, parm_birth_insn);
else
emit_insn_before (seq, NEXT_INSN (entry_of_function ()));
pop_topmost_sequence ();
return temp;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2008-12-05 Jakub Jelinek <jakub@redhat.com>
PR middle-end/38338
* gcc.dg/pr38338.c: New test.
2008-12-05 Joseph Myers <joseph@codesourcery.com>
* gcc.target/powerpc/20081204-1.c: New test.

18
gcc/testsuite/gcc.dg/pr38338.c Normal file
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@ -0,0 +1,18 @@
/* PR middle-end/38338 */
/* { dg-options "-O0" } */
/* { dg-options "-O0 -fPIC" { target fpic } } */
typedef void (*fnp) (void);
static char
foo (char x)
{
return x;
}
static void *
bar (char x)
{
void *args = __builtin_apply_args ();
return __builtin_apply ((fnp) foo, args, sizeof (void *));
}