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| author | Chris Lattner <sabre@nondot.org> | 2002-05-14 19:56:14 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2002-05-14 19:56:14 +0000 |
| commit | f54d0dea8faa11fbae4cf7d6505414564f4ddfa9 (patch) | |
| tree | 3ec35182a7e39b7aabb63f9fa8763284825c18cd | |
| parent | 86c25fd5560dd9df92ccfd37ffa2dba1a007eeae (diff) | |
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2628 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/Transforms/GCSE/2002-05-14-OperandSwap.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/GCSE/2002-05-14-OperandSwap.ll b/test/Transforms/GCSE/2002-05-14-OperandSwap.ll new file mode 100644 index 0000000000..a75e298f7f --- /dev/null +++ b/test/Transforms/GCSE/2002-05-14-OperandSwap.ll @@ -0,0 +1,18 @@ +; This entire chain of computation should be optimized away, but +; wasn't because the two multiplies were not detected as being identical. +; +; RUN: if as < %s | opt -gcse -instcombine -dce | dis | grep sub +; RUN: then exit 1 +; RUN: else exit 0 +; RUN: fi + +implementation ; Functions: + +uint "vnum_test4"(uint* %data) { + %reg1101 = load uint* %data, uint 1 + %reg1111 = load uint* %data, uint 3 + %reg109 = mul uint %reg1101, %reg1111 + %reg108 = mul uint %reg1111, %reg1101 + %reg121 = sub uint %reg108, %reg109 + ret uint %reg121 +} |