Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/strlenopt-67.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | |
children |
line wrap: on
line source
/* PR tree-optimization/90989 - incorrrect strlen result after second strcpy into the same destination. { dg-do compile } { dg-options "-O2 -Wall -fdump-tree-optimized" } */ // #include "strlenopt.h" char a[4]; int f4 (void) { char b[4]; __builtin_strcpy (b, "12"); int i = __builtin_strcmp (a, b); __builtin_strcpy (b, "123"); if (__builtin_strlen (b) != 3) __builtin_abort (); return i; } int f6 (void) { char b[6]; __builtin_strcpy (b, "1234"); int i = __builtin_strcmp (a, b); __builtin_strcpy (b, "12345"); if (__builtin_strlen (b) != 5) __builtin_abort (); return i; } int f8 (void) { char b[8]; __builtin_strcpy (b, "1234"); int i = __builtin_strcmp (a, b); __builtin_strcpy (b, "1234567"); if (__builtin_strlen (b) != 7) __builtin_abort (); return i; } /* { dg-final { scan-tree-dump-times "abort|strlen" 0 "optimized" } } */