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re PR tree-optimization/39839 (loop invariant motion causes stack spill) 

2010-07-22  Sandra Loosemore  <sandra@codesourcery.com>

	PR tree-optimization/39839

	gcc/testsuite/
	* gcc.target/arm/pr39839.c: New test case.

From-SVN: r162438
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Sandra Loosemore 2010-07-22 22:18:07 -04:00 committed by Sandra Loosemore
parent 944be25bc5
commit 9d3493e63d
2 changed files with 29 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-07-22 Sandra Loosemore <sandra@codesourcery.com>
PR tree-optimization/39839
* gcc.target/arm/pr39839.c: New test case.
2010-07-22 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/unchecked_convert5b.adb: New test.

24
gcc/testsuite/gcc.target/arm/pr39839.c Normal file
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/* { dg-options "-mthumb -Os -march=armv5te -mthumb-interwork -fpic" } */
/* { dg-require-effective-target arm_thumb1_ok } */
/* { dg-final { scan-assembler-not "str\[\\t \]*r.,\[\\t \]*.sp," } } */
struct S
{
int count;
char *addr;
};
void func(const char*, const char*, int, const char*);
/* This function should not need to spill to the stack. */
void test(struct S *p)
{
int off = p->count;
while (p->count >= 0)
{
const char *s = "xyz";
if (*p->addr) s = "pqr";
func("abcde", p->addr + off, off, s);
p->count--;
}
}