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| author | Chris Lattner <sabre@nondot.org> | 2009-05-30 18:43:04 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-05-30 18:43:04 +0000 |
| commit | 0e98e4d299e76ab627d53c976f0f84b449106d15 (patch) | |
| tree | dbfcbeed288cbb5b81e63ec68b152df08b7f8d7e /test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll | |
| parent | 1e8c7a687de7bf10bd3cc7cbf73fa2b82f091cb4 (diff) | |
| download | external_llvm-0e98e4d299e76ab627d53c976f0f84b449106d15.zip external_llvm-0e98e4d299e76ab627d53c976f0f84b449106d15.tar.gz external_llvm-0e98e4d299e76ab627d53c976f0f84b449106d15.tar.bz2 | |
fix PR4284, a bug in simplifylibcalls handling memcmp. Patch by
Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72625 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll b/test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll new file mode 100644 index 0000000..f720993 --- /dev/null +++ b/test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll @@ -0,0 +1,14 @@ +; RUN: llvm-as < %s | opt -simplify-libcalls -instcombine | llvm-dis | grep {ret i32 -65} +; PR4284 + +define i32 @test() nounwind { +entry: + %c0 = alloca i8, align 1 ; <i8*> [#uses=2] + %c2 = alloca i8, align 1 ; <i8*> [#uses=2] + store i8 64, i8* %c0 + store i8 -127, i8* %c2 + %call = call i32 @memcmp(i8* %c0, i8* %c2, i32 1) ; <i32> [#uses=1] + ret i32 %call +} + +declare i32 @memcmp(i8*, i8*, i32) |