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re PR rtl-optimization/46865 (Using -save-temps (or ccache, distcc) produces different results with multiline macros containing asm code)

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PR rtl-optimization/46865
	* rtl.c (rtx_equal_p_cb, rtx_equal_p): For last operand of
	ASM_OPERANDS and ASM_INPUT if integers are different,
	call locator_eq.
	* jump.c (rtx_renumbered_equal_p): Likewise.

	* gcc.target/i386/pr46865-1.c: New test.
	* gcc.target/i386/pr46865-2.c: New test.

From-SVN: r167686
This commit is contained in:
Jakub Jelinek 2010-12-10 13:43:45 +01:00 committed by Jakub Jelinek
parent 6391db6814
commit fee457233e
6 changed files with 98 additions and 3 deletions
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6
gcc/ChangeLog
View File

@ -1,5 +1,11 @@
2010-12-10 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/46865
* rtl.c (rtx_equal_p_cb, rtx_equal_p): For last operand of
ASM_OPERANDS and ASM_INPUT if integers are different,
call locator_eq.
* jump.c (rtx_renumbered_equal_p): Likewise.
PR tree-optimization/46864
* tree-ssa-loop-im.c (loop_suitable_for_sm): Return false even
when there are EDGE_EH exit edges.

8
gcc/jump.c
View File

@ -1727,7 +1727,13 @@ rtx_renumbered_equal_p (const_rtx x, const_rtx y)
case 'i':
if (XINT (x, i) != XINT (y, i))
return 0;
{
if (((code == ASM_OPERANDS && i == 6)
|| (code == ASM_INPUT && i == 1))
&& locator_eq (XINT (x, i), XINT (y, i)))
break;
return 0;
}
break;
case 't':

20
gcc/rtl.c
View File

@ -431,7 +431,15 @@ rtx_equal_p_cb (const_rtx x, const_rtx y, rtx_equal_p_callback_function cb)
case 'n':
case 'i':
if (XINT (x, i) != XINT (y, i))
return 0;
{
#ifndef GENERATOR_FILE
if (((code == ASM_OPERANDS && i == 6)
|| (code == ASM_INPUT && i == 1))
&& locator_eq (XINT (x, i), XINT (y, i)))
break;
#endif
return 0;
}
break;
case 'V':
@ -555,7 +563,15 @@ rtx_equal_p (const_rtx x, const_rtx y)
case 'n':
case 'i':
if (XINT (x, i) != XINT (y, i))
return 0;
{
#ifndef GENERATOR_FILE
if (((code == ASM_OPERANDS && i == 6)
|| (code == ASM_INPUT && i == 1))
&& locator_eq (XINT (x, i), XINT (y, i)))
break;
#endif
return 0;
}
break;
case 'V':

4
gcc/testsuite/ChangeLog
View File

@ -1,5 +1,9 @@
2010-12-10 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/46865
* gcc.target/i386/pr46865-1.c: New test.
* gcc.target/i386/pr46865-2.c: New test.
PR tree-optimization/46864
* g++.dg/opt/pr46864.C: New test.

31
gcc/testsuite/gcc.target/i386/pr46865-1.c Normal file
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@ -0,0 +1,31 @@
/* PR rtl-optimization/46865 */
/* { dg-do compile } */
/* { dg-options "-O2" } */
extern unsigned long f;
#define m1(f) \
if (f & 1) \
asm volatile ("nop /* asmnop */\n"); \
else \
asm volatile ("nop /* asmnop */\n");
#define m2(f) \
if (f & 1) \
asm volatile ("nop /* asmnop */\n" : : "i" (6) : "cx"); \
else \
asm volatile ("nop /* asmnop */\n" : : "i" (6) : "cx");
void
foo (void)
{
m1 (f);
}
void
bar (void)
{
m2 (f);
}
/* { dg-final { scan-assembler-times "asmnop" 2 } } */

32
gcc/testsuite/gcc.target/i386/pr46865-2.c Normal file
View File

@ -0,0 +1,32 @@
/* PR rtl-optimization/46865 */
/* { dg-do compile } */
/* { dg-options "-O2 -save-temps" } */
extern unsigned long f;
#define m1(f) \
if (f & 1) \
asm volatile ("nop /* asmnop */\n"); \
else \
asm volatile ("nop /* asmnop */\n");
#define m2(f) \
if (f & 1) \
asm volatile ("nop /* asmnop */\n" : : "i" (6) : "cx"); \
else \
asm volatile ("nop /* asmnop */\n" : : "i" (6) : "cx");
void
foo (void)
{
m1 (f);
}
void
bar (void)
{
m2 (f);
}
/* { dg-final { scan-assembler-times "asmnop" 2 } } */
/* { dg-final { cleanup-saved-temps } } */