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| author | Chris Lattner <sabre@nondot.org> | 2006-03-14 06:54:32 +0000 |
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| committer | Chris Lattner <sabre@nondot.org> | 2006-03-14 06:54:32 +0000 |
| commit | 000c7c4c7b9481fb596fb2a2db9d163b800a8a09 (patch) | |
| tree | c09aa8bce5bcfa4744bf027561d664e9c80e14cf /test/Transforms/Reassociate/shift-factor.ll | |
| parent | 09a053a777056ea3e246a6b2fc3df139c6dff9f1 (diff) | |
| download | llvm-000c7c4c7b9481fb596fb2a2db9d163b800a8a09.tar.gz llvm-000c7c4c7b9481fb596fb2a2db9d163b800a8a09.tar.bz2 llvm-000c7c4c7b9481fb596fb2a2db9d163b800a8a09.tar.xz | |
Test that we can reassociate (x<<1)+(y<<1) -> (X+Y)<<1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26752 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/Reassociate/shift-factor.ll')
| -rw-r--r-- | test/Transforms/Reassociate/shift-factor.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/Transforms/Reassociate/shift-factor.ll b/test/Transforms/Reassociate/shift-factor.ll new file mode 100644 index 0000000000..b0499f5cb2 --- /dev/null +++ b/test/Transforms/Reassociate/shift-factor.ll @@ -0,0 +1,11 @@ +; There should be exactly one shift and one add left. +; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep shl | wc -l | grep 1 && +; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep add | wc -l | grep 1 + +int %test(int %X, int %Y) { + %tmp.2 = shl int %X, ubyte 1 ; <int> [#uses=1] + %tmp.6 = shl int %Y, ubyte 1 ; <int> [#uses=1] + %tmp.4 = add int %tmp.6, %tmp.2 ; <int> [#uses=1] + ret int %tmp.4 +} + |