diff options
Diffstat (limited to 'gcc-4.7/gcc/testsuite/gcc.target/i386/movsi-sm-1.c')
-rw-r--r-- | gcc-4.7/gcc/testsuite/gcc.target/i386/movsi-sm-1.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/testsuite/gcc.target/i386/movsi-sm-1.c b/gcc-4.7/gcc/testsuite/gcc.target/i386/movsi-sm-1.c new file mode 100644 index 000000000..35941405d --- /dev/null +++ b/gcc-4.7/gcc/testsuite/gcc.target/i386/movsi-sm-1.c @@ -0,0 +1,31 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -fgcse-sm -minline-all-stringops" } */ + +/* Store motion used to fail to recognize killed expressions within + parallels such as those generated for memory copying. */ + +static const char s[1024] __attribute__ ((__aligned__ (32))) + = "This is what we should get!"; + +int bug (int arg) { + char str[sizeof(s) > 4 ? sizeof(s) : 4] __attribute__ ((__aligned__ (32))); + + __builtin_memcpy (str, "Bug", 4); + + if (arg <= 2) + __builtin_memcpy (str, s, sizeof (s)); + + if (arg <= 1) + __builtin_memcpy (str, "Err", 4); + + __builtin_puts (str); + + return str[0] != s[0]; +} + +int main () { + if (bug (2)) + __builtin_abort (); + + return 0; +} |