diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2008-03-25 20:07:13 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-03-25 20:07:13 +0000 |
| commit | e5cd803324dd81ea77ff22796f919cda8de5181d (patch) | |
| tree | bae780720ba296a7baea44957888c442f8cb9628 /test | |
| parent | 01b2df658cfa070e564d40186092a23fc2c6f273 (diff) | |
| download | external_llvm-e5cd803324dd81ea77ff22796f919cda8de5181d.zip external_llvm-e5cd803324dd81ea77ff22796f919cda8de5181d.tar.gz external_llvm-e5cd803324dd81ea77ff22796f919cda8de5181d.tar.bz2 | |
Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48791 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/xor-undef.ll | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/xor-undef.ll b/test/Transforms/InstCombine/xor-undef.ll new file mode 100644 index 0000000..c090223 --- /dev/null +++ b/test/Transforms/InstCombine/xor-undef.ll @@ -0,0 +1,6 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep zeroinitializer + +define <2 x i64> @f() { + %tmp = xor <2 x i64> undef, undef + ret <2 x i64> %tmp +} |