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| author | Chris Lattner <sabre@nondot.org> | 2008-05-09 05:19:28 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-05-09 05:19:28 +0000 |
| commit | 7d2cbd2d43c389c0d067d30683ffefb6e4edde66 (patch) | |
| tree | 71ad36f0d26b336f72cb92aa0fe7369fa7332503 /test/Transforms/InstCombine/sub.ll | |
| parent | 94019f8e064bf84085b44c35ab0c1efb76fb94f7 (diff) | |
| download | external_llvm-7d2cbd2d43c389c0d067d30683ffefb6e4edde66.zip external_llvm-7d2cbd2d43c389c0d067d30683ffefb6e4edde66.tar.gz external_llvm-7d2cbd2d43c389c0d067d30683ffefb6e4edde66.tar.bz2 | |
Implement PR2298. This transforms:
~x < ~y --> y < x
-x == -y --> x == y
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50882 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/sub.ll')
| -rw-r--r-- | test/Transforms/InstCombine/sub.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/sub.ll b/test/Transforms/InstCombine/sub.ll index 9ee8b06..da6d710 100644 --- a/test/Transforms/InstCombine/sub.ll +++ b/test/Transforms/InstCombine/sub.ll @@ -134,3 +134,13 @@ define i1 @test21(i32 %g, i32 %h) { %tmp.4 = icmp ne i32 %tmp.2, %g ; <i1> [#uses=1] ret i1 %tmp.4 } + +; PR2298 +define i8 @test22(i32 %a, i32 %b) zeroext nounwind { + %tmp2 = sub i32 0, %a ; <i32> [#uses=1] + %tmp4 = sub i32 0, %b ; <i32> [#uses=1] + %tmp5 = icmp eq i32 %tmp2, %tmp4 ; <i1> [#uses=1] + %retval89 = zext i1 %tmp5 to i8 ; <i8> [#uses=1] + ret i8 %retval89 +} + |