diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr20318.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr20318.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr20318.c b/gcc/testsuite/gcc.dg/tree-ssa/pr20318.c new file mode 100644 index 00000000000..1b302aedefa --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr20318.c @@ -0,0 +1,19 @@ +/* { dg-do compile { target { ! keeps_null_pointer_checks } } } */ +/* { dg-options "-O2 -fdump-tree-original -fdump-tree-vrp1" } */ + +extern int* f(int) __attribute__((returns_nonnull)); +extern void eliminate (); +void g () { + if (f (2) == 0) + eliminate (); +} +void h () { + int *p = f (2); + if (p == 0) + eliminate (); +} + +/* { dg-final { scan-tree-dump-times "== 0" 1 "original" } } */ +/* { dg-final { scan-tree-dump-times "Folding predicate\[^\\n\]*to 0" 1 "vrp1" } } */ +/* { dg-final { cleanup-tree-dump "original" } } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ |