diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-2.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-2.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-2.c new file mode 100644 index 000000000..5e5302486 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-2.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-dce2" } */ + +/* We should notice constantness of this function. */ +static int __attribute__((noinline)) t(int a) +{ + return a+1; +} +void q(void) +{ + int i = t(1); + if (!i) + i = t(1); +} +/* There should be no IF conditionals. */ +/* { dg-final { scan-tree-dump-times "if " 0 "dce2"} } */ +/* { dg-final { cleanup-tree-dump "dce2" } } */ |