diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/fold-sub.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/fold-sub.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-sub.c b/gcc/testsuite/gcc.dg/fold-sub.c new file mode 100644 index 000000000..28a8dd51f --- /dev/null +++ b/gcc/testsuite/gcc.dg/fold-sub.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-ffinite-math-only -fdump-tree-gimple" } */ + +float f(float x) +{ + return x - x; +} + +/* Substraction should be turned into 0. */ + +/* { dg-final { scan-tree-dump-not " - " "gimple" } } */ +/* { dg-final { cleanup-tree-dump "gimple" } } */ |