Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/strlenopt-26.c @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 1830386684a0 |
line wrap: on
line source
/* { 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"; fn1 (p, q); return 0; } /* { dg-final { scan-tree-dump-times "strlen \\(" 2 "strlen" } } */ /* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen" } } */