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| 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 | d34af7875b682d519038295b04ab4e15f237ccdf (patch) | |
| tree | bae780720ba296a7baea44957888c442f8cb9628 /test | |
| parent | 1cf962b8749900a0b5b623366b72c34e08cd6a15 (diff) | |
| download | llvm-d34af7875b682d519038295b04ab4e15f237ccdf.tar.gz llvm-d34af7875b682d519038295b04ab4e15f237ccdf.tar.bz2 llvm-d34af7875b682d519038295b04ab4e15f237ccdf.tar.xz | |
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 0000000000..c090223b53 --- /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 +} |