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| author | Michael Berg <michael_c_berg@apple.com> | 2018-08-16 20:59:45 +0000 |
|---|---|---|
| committer | Michael Berg <michael_c_berg@apple.com> | 2018-08-16 20:59:45 +0000 |
| commit | ed89d069f4d6be2913ef5a1ae8fd2f9b28ddaab2 (patch) | |
| tree | 3930f544b6ac26b2f941b3b4b839a3b53c15dfff /llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp | |
| parent | 5f50ffe83b3269d03b495daeb2a73ca9f87f39e3 (diff) | |
| download | bcm5719-llvm-ed89d069f4d6be2913ef5a1ae8fd2f9b28ddaab2.tar.gz bcm5719-llvm-ed89d069f4d6be2913ef5a1ae8fd2f9b28ddaab2.zip | |
add a missed case for binary op FMF propagation under select folds
llvm-svn: 339938
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp index dc8e8df421e..f1f2a6606e2 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp @@ -354,7 +354,9 @@ Instruction *InstCombiner::foldSelectOpOp(SelectInst &SI, Instruction *TI, Value *Op0 = MatchIsOpZero ? MatchOp : NewSI; Value *Op1 = MatchIsOpZero ? NewSI : MatchOp; if (auto *BO = dyn_cast<BinaryOperator>(TI)) { - return BinaryOperator::Create(BO->getOpcode(), Op0, Op1); + BinaryOperator *NewBO = BinaryOperator::Create(BO->getOpcode(), Op0, Op1); + NewBO->copyIRFlags(BO); + return NewBO; } if (auto *TGEP = dyn_cast<GetElementPtrInst>(TI)) { auto *FGEP = cast<GetElementPtrInst>(FI); |
