211   case Instruction::Trunc:  in EvaluateInDifferentType()
305         (CI.getOpcode() == Instruction::Trunc &&  in commonCastTransforms()
463   case Instruction::Trunc:  in canEvaluateTruncated()
500 static Instruction *foldVecTruncToExtElt(TruncInst &Trunc,  in foldVecTruncToExtElt()  argument
502   Value *TruncOp = Trunc.getOperand(0);  in foldVecTruncToExtElt()
503   Type *DestType = Trunc.getType();  in foldVecTruncToExtElt()
540 Instruction *InstCombinerImpl::narrowFunnelShift(TruncInst &Trunc) {  in narrowFunnelShift()  argument
541   assert((isa<VectorType>(Trunc.getSrcTy()) ||  in narrowFunnelShift()
542           shouldChangeType(Trunc.getSrcTy(), Trunc.getType())) &&  in narrowFunnelShift()
547   Type *DestTy = Trunc.getType();  in narrowFunnelShift()
549   unsigned WideWidth = Trunc.getSrcTy()->getScalarSizeInBits();  in narrowFunnelShift()
556   if (!match(Trunc.getOperand(0), m_OneUse(m_Or(m_BinOp(Or0), m_BinOp(Or1)))))  in narrowFunnelShift()
622   if (!MaskedValueIsZero(ShVal1, HiBitMask, 0, &Trunc))  in narrowFunnelShift()
635   Function *F = Intrinsic::getDeclaration(Trunc.getModule(), IID, DestTy);  in narrowFunnelShift()
641 Instruction *InstCombinerImpl::narrowBinOp(TruncInst &Trunc) {  in narrowBinOp()  argument
642   Type *SrcTy = Trunc.getSrcTy();  in narrowBinOp()
643   Type *DestTy = Trunc.getType();  in narrowBinOp()
651   if (!match(Trunc.getOperand(0), m_OneUse(m_BinOp(BinOp))))  in narrowBinOp()
700         auto *OldShift = cast<Instruction>(Trunc.getOperand(0));  in narrowBinOp()
716   if (Instruction *NarrowOr = narrowFunnelShift(Trunc))  in narrowBinOp()
725 static Instruction *shrinkSplatShuffle(TruncInst &Trunc,  in shrinkSplatShuffle()  argument
727   auto *Shuf = dyn_cast<ShuffleVectorInst>(Trunc.getOperand(0));  in shrinkSplatShuffle()
733     Value *NarrowOp = Builder.CreateTrunc(Shuf->getOperand(0), Trunc.getType());  in shrinkSplatShuffle()
745 static Instruction *shrinkInsertElt(CastInst &Trunc,  in shrinkInsertElt()  argument
747   Instruction::CastOps Opcode = Trunc.getOpcode();  in shrinkInsertElt()
748   assert((Opcode == Instruction::Trunc || Opcode == Instruction::FPTrunc) &&  in shrinkInsertElt()
751   auto *InsElt = dyn_cast<InsertElementInst>(Trunc.getOperand(0));  in shrinkInsertElt()
755   Type *DestTy = Trunc.getType();  in shrinkInsertElt()
772 Instruction *InstCombinerImpl::visitTrunc(TruncInst &Trunc) {  in visitTrunc()  argument
773   if (Instruction *Result = commonCastTransforms(Trunc))  in visitTrunc()
776   Value *Src = Trunc.getOperand(0);  in visitTrunc()
777   Type *DestTy = Trunc.getType(), *SrcTy = Src->getType();  in visitTrunc()
786       canEvaluateTruncated(Src, DestTy, *this, &Trunc)) {  in visitTrunc()
793                << Trunc << '\n');  in visitTrunc()
796     return replaceInstUsesWith(Trunc, Res);  in visitTrunc()
807           canEvaluateTruncated(Src, NewDestTy, *this, &Trunc)) {  in visitTrunc()
811                    << Trunc << '\n');  in visitTrunc()
829   if (SimplifyDemandedInstructionBits(Trunc))  in visitTrunc()
830     return &Trunc;  in visitTrunc()
900   if (Instruction *I = narrowBinOp(Trunc))  in visitTrunc()
903   if (Instruction *I = shrinkSplatShuffle(Trunc, Builder))  in visitTrunc()
906   if (Instruction *I = shrinkInsertElt(Trunc, Builder))  in visitTrunc()
926   if (Instruction *I = foldVecTruncToExtElt(Trunc, *this))  in visitTrunc()
967           Builder.CreateIntrinsic(Intrinsic::ctlz, {Trunc.getType()}, {A, B});  in visitTrunc()
973     if (Trunc.getFunction() &&  in visitTrunc()
974         Trunc.getFunction()->hasFnAttribute(Attribute::VScaleRange)) {  in visitTrunc()
976           Trunc.getFunction()->getFnAttribute(Attribute::VScaleRange);  in visitTrunc()
980           return replaceInstUsesWith(Trunc, VScale);  in visitTrunc()
1145   case Instruction::Trunc: // zext(trunc(x)) -> trunc(x) or zext(x)  in canEvaluateZExtd()
1317       Value *Trunc = Builder.CreateTrunc(A, CI.getType());  in visitZExt()  local
1319       return BinaryOperator::CreateAnd(Trunc,  in visitZExt()
1320                                        ConstantInt::get(Trunc->getType(),  in visitZExt()
1463   case Instruction::Trunc: // sext(trunc(x)) -> trunc(x) or sext(x)  in canEvaluateSExtd()