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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-10-02 10:37:37 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-10-02 10:37:37 +0000 |
| commit | 99fb091f65b3fd527781806ef79f3f3db01e1b9a (patch) | |
| tree | a02283a60cd07f6668b5c5969463879e3e32f85c /llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp | |
| parent | 9b0f5688b9b2773a7a2b6b9ece722e970be6a827 (diff) | |
| download | bcm5719-llvm-99fb091f65b3fd527781806ef79f3f3db01e1b9a.tar.gz bcm5719-llvm-99fb091f65b3fd527781806ef79f3f3db01e1b9a.zip | |
Add a new icmp+select optz'n. Also shows off the load(cst) folding added in
r140966.
llvm-svn: 140969
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp index ae42d526ae7..91e60a4fb24 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp @@ -482,10 +482,16 @@ Instruction *InstCombiner::visitSelectInstWithICmp(SelectInst &SI, if (SimplifyWithOpReplaced(FalseVal, CmpLHS, CmpRHS, TD) == TrueVal || SimplifyWithOpReplaced(FalseVal, CmpRHS, CmpLHS, TD) == TrueVal) return ReplaceInstUsesWith(SI, FalseVal); + if (SimplifyWithOpReplaced(TrueVal, CmpLHS, CmpRHS, TD) == FalseVal || + SimplifyWithOpReplaced(TrueVal, CmpRHS, CmpLHS, TD) == FalseVal) + return ReplaceInstUsesWith(SI, FalseVal); } else if (Pred == ICmpInst::ICMP_NE) { if (SimplifyWithOpReplaced(TrueVal, CmpLHS, CmpRHS, TD) == FalseVal || SimplifyWithOpReplaced(TrueVal, CmpRHS, CmpLHS, TD) == FalseVal) return ReplaceInstUsesWith(SI, TrueVal); + if (SimplifyWithOpReplaced(FalseVal, CmpLHS, CmpRHS, TD) == TrueVal || + SimplifyWithOpReplaced(FalseVal, CmpRHS, CmpLHS, TD) == TrueVal) + return ReplaceInstUsesWith(SI, TrueVal); } // NOTE: if we wanted to, this is where to detect integer MIN/MAX |
