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re PR tree-optimization/33619 (TER breaks some inline-asm code (again))

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PR tree-optimization/33619
	* tree-ssa-ter.c (is_replaceable_p): Return false for all
	calls.

	* gcc.dg/pr33619.c: New test.

From-SVN: r129350
This commit is contained in:
Jakub Jelinek 2007-10-15 17:14:46 +02:00
parent fc632f6e0f
commit e0b55676cc
4 changed files with 59 additions and 10 deletions
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9
gcc/ChangeLog
View File

@ -1,6 +1,12 @@
2007-10-15 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/33619
* tree-ssa-ter.c (is_replaceable_p): Return false for all
calls.
2007-10-15 David Edelsohn <edelsohn@gnu.org>
* config.gcc (powerpc-ibm-aix5*): Install altivec.h
* config.gcc (powerpc-ibm-aix5*): Install altivec.h.
2007-10-15 Richard Guenther <rguenther@suse.de>
@ -12,7 +18,6 @@
2007-10-15 Maxim Kuvyrkov <maxim@codesourcery.com>
PR target/33133
* haifa-sched.c (process_insn_forw_deps_be_in_spec): Check if
speculation type of insn can be changed before trying to do that.

6
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2007-10-15 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/33619
* gcc.dg/pr33619.c: New test.
2007-10-15 David Edelsohn <edelsohn@gnu.org>
lib/target-supports.exp (check_vmx_hw_available): Add -maltivec
@ -13,7 +18,6 @@
2007-10-15 Maxim Kuvyrkov <maxim@codesourcery.com>
PR target/33133
* gcc.c-torture/compile/pr33133.c: New test.
2007-10-14 Jerry DeLisle <jvdelisle@gcc.gnu.org>

45
gcc/testsuite/gcc.dg/pr33619.c Normal file
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@ -0,0 +1,45 @@
/* PR tree-optimization/33619 */
/* { dg-do run } */
/* { dg-options "-O2" } */
#ifdef __powerpc__
# define REG1 __asm__ ("3")
# define REG2 __asm__ ("4")
#elif defined __x86_64__
# define REG1 __asm__ ("rdi")
# define REG2 __asm__ ("rsi")
#else
# define REG1
# define REG2
#endif
static inline void
bar (unsigned long x, int y)
{
register unsigned long p1 REG1 = x;
register unsigned long p2 REG2 = y;
__asm__ volatile ("" : "=r" (p1), "=r" (p2) : "0" (p1), "1" (p2) : "memory");
if (p1 != 0xdeadUL || p2 != 0xbefUL)
__builtin_abort ();
}
__attribute__((const, noinline)) int
baz (int x)
{
return x;
}
__attribute__((noinline)) void
foo (unsigned long *x, int y)
{
unsigned long a = *x;
bar (a, baz (y));
}
int
main (void)
{
unsigned long a = 0xdeadUL;
foo (&a, 0xbefUL);
return 0;
}

9
gcc/tree-ssa-ter.c
View File

@ -402,14 +402,9 @@ is_replaceable_p (tree stmt)
&& DECL_HARD_REGISTER (GENERIC_TREE_OPERAND (stmt, 1)))
return false;
/* Calls to functions with side-effects cannot be replaced. */
/* No function calls can be replaced. */
if ((call_expr = get_call_expr_in (stmt)) != NULL_TREE)
{
int call_flags = call_expr_flags (call_expr);
if (TREE_SIDE_EFFECTS (call_expr)
&& !(call_flags & (ECF_PURE | ECF_CONST | ECF_NORETURN)))
return false;
}
return false;
/* Leave any stmt with volatile operands alone as well. */
if (stmt_ann (stmt)->has_volatile_ops)