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| author | Shih-wei Liao <sliao@google.com> | 2010-02-10 11:10:31 -0800 |
|---|---|---|
| committer | Shih-wei Liao <sliao@google.com> | 2010-02-10 11:10:31 -0800 |
| commit | e264f62ca09a8f65c87a46d562a4d0f9ec5d457e (patch) | |
| tree | 59e3d57ef656cef79afa708ae0a3daf25cd91fcf /test/Transforms/InstCombine/apint-and-xor-merge.ll | |
| download | external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.tar.gz external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.tar.bz2 external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.zip | |
Check in LLVM r95781.
Diffstat (limited to 'test/Transforms/InstCombine/apint-and-xor-merge.ll')
| -rw-r--r-- | test/Transforms/InstCombine/apint-and-xor-merge.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/apint-and-xor-merge.ll b/test/Transforms/InstCombine/apint-and-xor-merge.ll new file mode 100644 index 0000000000..8adffde362 --- /dev/null +++ b/test/Transforms/InstCombine/apint-and-xor-merge.ll @@ -0,0 +1,22 @@ +; This test case checks that the merge of and/xor can work on arbitrary +; precision integers. + +; RUN: opt < %s -instcombine -S | grep and | count 1 +; RUN: opt < %s -instcombine -S | grep xor | count 2 + +; (x &z ) ^ (y & z) -> (x ^ y) & z +define i57 @test1(i57 %x, i57 %y, i57 %z) { + %tmp3 = and i57 %z, %x + %tmp6 = and i57 %z, %y + %tmp7 = xor i57 %tmp3, %tmp6 + ret i57 %tmp7 +} + +; (x & y) ^ (x | y) -> x ^ y +define i23 @test2(i23 %x, i23 %y, i23 %z) { + %tmp3 = and i23 %y, %x + %tmp6 = or i23 %y, %x + %tmp7 = xor i23 %tmp3, %tmp6 + ret i23 %tmp7 +} + |