Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/strlenopt-26.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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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" } } */