diff options
| author | Chris Lattner <sabre@nondot.org> | 2005-01-01 16:13:19 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-01-01 16:13:19 +0000 |
| commit | e768ff2cdca504c42b5bf1ab9c7c57b54be381a3 (patch) | |
| tree | cb9adcfda959b358246265f4f0d3882722a46989 /test/Transforms/InstCombine | |
| parent | 05b402ce9fc3594fafeccaf46b0bd6cf8698ab3d (diff) | |
| download | external_llvm-e768ff2cdca504c42b5bf1ab9c7c57b54be381a3.zip external_llvm-e768ff2cdca504c42b5bf1ab9c7c57b54be381a3.tar.gz external_llvm-e768ff2cdca504c42b5bf1ab9c7c57b54be381a3.tar.bz2 | |
Add a bunch of tests for ANDs that should be eliminated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19216 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine')
| -rw-r--r-- | test/Transforms/InstCombine/and.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/and.ll b/test/Transforms/InstCombine/and.ll index 67b34a3..b217c7e 100644 --- a/test/Transforms/InstCombine/and.ll +++ b/test/Transforms/InstCombine/and.ll @@ -179,3 +179,16 @@ ubyte %test27(ubyte %A) { %E = add ubyte %D, 16 ret ubyte %E } + +int %test28(int %X) { ;; This is juse a zero extending shr. + %Y = shr int %X, ubyte 24 ;; Sign extend + %Z = and int %Y, 255 ;; Mask out sign bits + ret int %Z +} + +int %test29(ubyte %X) { + %Y = cast ubyte %X to int + %Z = and int %Y, 255 ;; Zero extend makes this unneeded. + ret int %Z +} + |