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re PR target/39496 (GCC uses non-standard calling conventions for static functions with -O0.)

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PR target/39496
	* config/i386/i386.c (ix86_function_regparm): Don't optimize local
	functions using regparm calling conventions when not optimizing.
	(ix86_function_sseregparm): Similarly for sseregparm calling
	conventions.

	* gcc.target/i386/pr39496.c: New test.
	* g++.dg/other/pr39496.C: New test.

From-SVN: r144955
This commit is contained in:
Jakub Jelinek 2009-03-19 11:25:43 +01:00 committed by Jakub Jelinek
parent 9e517d61f7
commit f57c2f04ae
5 changed files with 88 additions and 2 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2009-03-19 Jakub Jelinek <jakub@redhat.com>
PR target/39496
* config/i386/i386.c (ix86_function_regparm): Don't optimize local
functions using regparm calling conventions when not optimizing.
(ix86_function_sseregparm): Similarly for sseregparm calling
conventions.
2009-03-19 Li Feng <nemokingdom@gmail.com>
PR middle-end/39500

6
gcc/config/i386/i386.c
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@ -4309,7 +4309,9 @@ ix86_function_regparm (const_tree type, const_tree decl)
return 2;
/* Use register calling convention for local functions when possible. */
if (decl && TREE_CODE (decl) == FUNCTION_DECL
if (decl
&& TREE_CODE (decl) == FUNCTION_DECL
&& optimize
&& !profile_flag)
{
/* FIXME: remove this CONST_CAST when cgraph.[ch] is constified. */
@ -4394,7 +4396,7 @@ ix86_function_sseregparm (const_tree type, const_tree decl, bool warn)
/* For local functions, pass up to SSE_REGPARM_MAX SFmode
(and DFmode for SSE2) arguments in SSE registers. */
if (decl && TARGET_SSE_MATH && !profile_flag)
if (decl && TARGET_SSE_MATH && optimize && !profile_flag)
{
/* FIXME: remove this CONST_CAST when cgraph.[ch] is constified. */
struct cgraph_local_info *i = cgraph_local_info (CONST_CAST_TREE(decl));

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2009-03-19 Jakub Jelinek <jakub@redhat.com>
PR target/39496
* gcc.target/i386/pr39496.c: New test.
* g++.dg/other/pr39496.C: New test.
2009-03-19 Li Feng <nemokingdom@gmail.com>
PR middle-end/39500

35
gcc/testsuite/g++.dg/other/pr39496.C Normal file
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@ -0,0 +1,35 @@
// PR target/39496
// { dg-do compile { target { { i?86-*-linux* x86_64-*-linux* } && ilp32 } } }
// { dg-options "-O0 -fverbose-asm -fno-omit-frame-pointer -msse2 -mfpmath=sse" }
// Verify that {foo,bar}{,2}param are all passed on the stack, using
// normal calling conventions, when not optimizing.
// { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*fooparam," } }
// { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*barparam," } }
// { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*foo2param," } }
// { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*bar2param," } }
static inline int foo (int fooparam)
{
return fooparam;
}
static int bar (int barparam)
{
return foo (barparam);
}
static inline double foo2 (double foo2param)
{
return foo2param;
}
static double bar2 (double bar2param)
{
return foo2 (bar2param);
}
int
main ()
{
return bar (0) + bar2 (0.0);
}

35
gcc/testsuite/gcc.target/i386/pr39496.c Normal file
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@ -0,0 +1,35 @@
/* PR target/39496 */
/* { dg-do compile { target { { i?86-*-linux* x86_64-*-linux* } && ilp32 } } } */
/* { dg-options "-O0 -fverbose-asm -fno-omit-frame-pointer -msse2 -mfpmath=sse" } */
/* Verify that {foo,bar}{,2}param are all passed on the stack, using
normal calling conventions, when not optimizing. */
/* { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*fooparam," } } */
/* { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*barparam," } } */
/* { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*foo2param," } } */
/* { dg-final { scan-assembler "\[^0-9-\]8\\(%ebp\\),\[^\n\]*bar2param," } } */
static inline int foo (int fooparam)
{
return fooparam;
}
static int bar (int barparam)
{
return foo (barparam);
}
static inline double foo2 (double foo2param)
{
return foo2param;
}
static double bar2 (double bar2param)
{
return foo2 (bar2param);
}
int
main ()
{
return bar (0) + bar2 (0.0);
}