diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-24.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-24.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-24.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-24.c new file mode 100644 index 000000000..0edd51f85 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-24.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +void f (const char *c, int *i) +{ + *i = 42; + __builtin_memcpy (i + 1, c, sizeof (int)); + if (*i != 42) __builtin_abort(); +} + +extern void keepit (); +void g (const char *c, int *i) +{ + *i = 33; + __builtin_memcpy (i - 1, c, 3 * sizeof (int)); + if (*i != 33) keepit(); +} + +/* { dg-final { scan-tree-dump-not "abort" "optimized" } } */ +/* { dg-final { scan-tree-dump "keepit" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ + |