Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/strlenopt-16g.c @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 1830386684a0 |
line wrap: on
line source
/* This test needs runtime that provides stpcpy function. */ /* { dg-do run { target *-*-linux* *-*-gnu* } } */ /* { dg-options "-O2 -fdump-tree-strlen" } */ #define USE_GNU #include "strlenopt.h" __attribute__((noinline, noclone)) char * fn1 (char *p, const char *q) { /* This strcpy can be optimized into stpcpy. */ strcpy (p, q); /* And this strchr into the return value from it. */ return strchr (p, '\0'); } int main () { char buf[64]; const char *volatile q = "ABCDEFGH"; if (fn1 (buf, q) != buf + 8 || memcmp (buf, "ABCDEFGH", 9) != 0) abort (); return 0; } /* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen" } } */ /* { dg-final { scan-tree-dump-times "memcpy \\(" 0 "strlen" } } */ /* { dg-final { scan-tree-dump-times "mempcpy \\(" 0 "strlen" } } */ /* { dg-final { scan-tree-dump-times "strcpy \\(" 0 "strlen" } } */ /* { dg-final { scan-tree-dump-times "strcat \\(" 0 "strlen" } } */ /* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen" } } */ /* { dg-final { scan-tree-dump-times "stpcpy \\(" 1 "strlen" } } */