diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp')
-rw-r--r-- | contrib/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp b/contrib/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp index 6629ca840a67..58f0763bb0c0 100644 --- a/contrib/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp +++ b/contrib/llvm-project/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp @@ -103,6 +103,16 @@ Value *InstCombinerImpl::EvaluateInDifferentType(Value *V, Type *Ty, } } break; + case Instruction::ShuffleVector: { + auto *ScalarTy = cast<VectorType>(Ty)->getElementType(); + auto *VTy = cast<VectorType>(I->getOperand(0)->getType()); + auto *FixedTy = VectorType::get(ScalarTy, VTy->getElementCount()); + Value *Op0 = EvaluateInDifferentType(I->getOperand(0), FixedTy, isSigned); + Value *Op1 = EvaluateInDifferentType(I->getOperand(1), FixedTy, isSigned); + Res = new ShuffleVectorInst(Op0, Op1, + cast<ShuffleVectorInst>(I)->getShuffleMask()); + break; + } default: // TODO: Can handle more cases here. llvm_unreachable("Unreachable!"); @@ -363,6 +373,9 @@ static bool canEvaluateTruncated(Value *V, Type *Ty, InstCombinerImpl &IC, I->getOpcode() == Instruction::FPToSI); return Ty->getScalarSizeInBits() >= MinBitWidth; } + case Instruction::ShuffleVector: + return canEvaluateTruncated(I->getOperand(0), Ty, IC, CxtI) && + canEvaluateTruncated(I->getOperand(1), Ty, IC, CxtI); default: // TODO: Can handle more cases here. break; |