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/* { dg-do run } */
/* { dg-options "-O2 -fdump-tree-strlen" } */
#include "strlenopt.h"
__attribute__((noinline, noclone)) size_t
fn1 (char *p, const char *r)
{
size_t len1 = strlen (r);
char *q = strchr (p, '\0');
*q = '\0';
return len1 - strlen (r); // This strlen should be optimized into len1.
}
int
main (void)
{
char p[] = "foobar";
const char *volatile q = "xyzzy";
return fn1 (p, q);
}
/* { dg-final { scan-tree-dump-times "strlen \\(" 2 "strlen1" } } */
/* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen1" } } */
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