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/* PR rtl-optimization/52714
Check that combine manages to remove the "stack == 0" test.
Without ICEing. */
/* { dg-do compile } */
/* { dg-options "-O1" } */
int __re_compile_fastmap(unsigned char *p)
{
unsigned char **stack;
unsigned size;
unsigned avail;
stack = __builtin_alloca(5 * sizeof(unsigned char*));
if (stack == 0)
return -2;
size = 5;
avail = 0;
for (;;) {
switch (*p++) {
case 0:
if (avail == size)
return -2;
stack[avail++] = p;
}
}
return 0;
}
/* { dg-final { scan-assembler-not {\mtst\.l %sp\M} } } */
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