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| author | Christian Bruel <christian.bruel@st.com> | 2007-08-22 16:38:16 +0200 |
|---|---|---|
| committer | Christian Bruel <chrbr@gcc.gnu.org> | 2007-08-22 16:38:16 +0200 |
| commit | 81d2fb0294c4804ec559bb6f796fb8c79bea06a2 (patch) | |
| tree | e4a372adecd095b7b82017b726220ef5440be287 /gcc/testsuite/gcc.dg/fold-sub.c | |
| parent | fcdb5d68deffd7e82c3362e210e64dec78a66d62 (diff) | |
| download | gcc-81d2fb0294c4804ec559bb6f796fb8c79bea06a2.zip gcc-81d2fb0294c4804ec559bb6f796fb8c79bea06a2.tar.gz gcc-81d2fb0294c4804ec559bb6f796fb8c79bea06a2.tar.bz2 | |
fixed -ffinite-math-only A-A missing optimisation
Co-Authored-By: Richard Guenther <rguenther@suse.de>
From-SVN: r127705
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 0000000..28a8dd5 --- /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" } } */ |