diff options
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineShifts.cpp')
-rw-r--r-- | lib/Transforms/InstCombine/InstCombineShifts.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineShifts.cpp b/lib/Transforms/InstCombine/InstCombineShifts.cpp index 5504cb2ef8..cc6665c947 100644 --- a/lib/Transforms/InstCombine/InstCombineShifts.cpp +++ b/lib/Transforms/InstCombine/InstCombineShifts.cpp @@ -686,6 +686,9 @@ Instruction *InstCombiner::FoldShiftByConstant(Value *Op0, Constant *Op1, } Instruction *InstCombiner::visitShl(BinaryOperator &I) { + if (Value *V = SimplifyVectorOp(I)) + return ReplaceInstUsesWith(I, V); + if (Value *V = SimplifyShlInst(I.getOperand(0), I.getOperand(1), I.hasNoSignedWrap(), I.hasNoUnsignedWrap(), DL)) @@ -724,6 +727,9 @@ Instruction *InstCombiner::visitShl(BinaryOperator &I) { } Instruction *InstCombiner::visitLShr(BinaryOperator &I) { + if (Value *V = SimplifyVectorOp(I)) + return ReplaceInstUsesWith(I, V); + if (Value *V = SimplifyLShrInst(I.getOperand(0), I.getOperand(1), I.isExact(), DL)) return ReplaceInstUsesWith(I, V); @@ -764,6 +770,9 @@ Instruction *InstCombiner::visitLShr(BinaryOperator &I) { } Instruction *InstCombiner::visitAShr(BinaryOperator &I) { + if (Value *V = SimplifyVectorOp(I)) + return ReplaceInstUsesWith(I, V); + if (Value *V = SimplifyAShrInst(I.getOperand(0), I.getOperand(1), I.isExact(), DL)) return ReplaceInstUsesWith(I, V); |