Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/strlenopt-16g.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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/* This test needs runtime that provides stpcpy function. */ /* { dg-do run { target *-*-linux* *-*-gnu* *-*-uclinux* } } */ /* { 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 "strlen1" } } */ /* { dg-final { scan-tree-dump-times "memcpy \\(" 0 "strlen1" } } */ /* { dg-final { scan-tree-dump-times "mempcpy \\(" 0 "strlen1" } } */ /* { dg-final { scan-tree-dump-times "strcpy \\(" 0 "strlen1" } } */ /* { dg-final { scan-tree-dump-times "strcat \\(" 0 "strlen1" } } */ /* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen1" } } */ /* { dg-final { scan-tree-dump-times "stpcpy \\(" 1 "strlen1" } } */