56   case Instruction::Trunc:  in EvaluateInDifferentType()
183         (CI.getOpcode() == Instruction::Trunc &&  in commonCastTransforms()
341   case Instruction::Trunc:  in canEvaluateTruncated()
393 static Instruction *foldVecTruncToExtElt(TruncInst &Trunc,  in foldVecTruncToExtElt()  argument
395   Value *TruncOp = Trunc.getOperand(0);  in foldVecTruncToExtElt()
396   Type *DestType = Trunc.getType();  in foldVecTruncToExtElt()
433 Instruction *InstCombinerImpl::narrowFunnelShift(TruncInst &Trunc) {  in narrowFunnelShift()  argument
434   assert((isa<VectorType>(Trunc.getSrcTy()) ||  in narrowFunnelShift()
435           shouldChangeType(Trunc.getSrcTy(), Trunc.getType())) &&  in narrowFunnelShift()
440   Type *DestTy = Trunc.getType();  in narrowFunnelShift()
442   unsigned WideWidth = Trunc.getSrcTy()->getScalarSizeInBits();  in narrowFunnelShift()
449   if (!match(Trunc.getOperand(0), m_OneUse(m_Or(m_BinOp(Or0), m_BinOp(Or1)))))  in narrowFunnelShift()
515   if (!MaskedValueIsZero(ShVal1, HiBitMask, 0, &Trunc))  in narrowFunnelShift()
530   Function *F = Intrinsic::getDeclaration(Trunc.getModule(), IID, DestTy);  in narrowFunnelShift()
536 Instruction *InstCombinerImpl::narrowBinOp(TruncInst &Trunc) {  in narrowBinOp()  argument
537   Type *SrcTy = Trunc.getSrcTy();  in narrowBinOp()
538   Type *DestTy = Trunc.getType();  in narrowBinOp()
546   if (!match(Trunc.getOperand(0), m_OneUse(m_BinOp(BinOp))))  in narrowBinOp()
595         auto *OldShift = cast<Instruction>(Trunc.getOperand(0));  in narrowBinOp()
613   if (Instruction *NarrowOr = narrowFunnelShift(Trunc))  in narrowBinOp()
622 static Instruction *shrinkSplatShuffle(TruncInst &Trunc,  in shrinkSplatShuffle()  argument
624   auto *Shuf = dyn_cast<ShuffleVectorInst>(Trunc.getOperand(0));  in shrinkSplatShuffle()
630     Value *NarrowOp = Builder.CreateTrunc(Shuf->getOperand(0), Trunc.getType());  in shrinkSplatShuffle()
642 static Instruction *shrinkInsertElt(CastInst &Trunc,  in shrinkInsertElt()  argument
644   Instruction::CastOps Opcode = Trunc.getOpcode();  in shrinkInsertElt()
645   assert((Opcode == Instruction::Trunc || Opcode == Instruction::FPTrunc) &&  in shrinkInsertElt()
648   auto *InsElt = dyn_cast<InsertElementInst>(Trunc.getOperand(0));  in shrinkInsertElt()
652   Type *DestTy = Trunc.getType();  in shrinkInsertElt()
669 Instruction *InstCombinerImpl::visitTrunc(TruncInst &Trunc) {  in visitTrunc()  argument
670   if (Instruction *Result = commonCastTransforms(Trunc))  in visitTrunc()
673   Value *Src = Trunc.getOperand(0);  in visitTrunc()
674   Type *DestTy = Trunc.getType(), *SrcTy = Src->getType();  in visitTrunc()
683       canEvaluateTruncated(Src, DestTy, *this, &Trunc)) {  in visitTrunc()
690                << Trunc << '\n');  in visitTrunc()
693     return replaceInstUsesWith(Trunc, Res);  in visitTrunc()
704           canEvaluateTruncated(Src, NewDestTy, *this, &Trunc)) {  in visitTrunc()
708                    << Trunc << '\n');  in visitTrunc()
726   if (SimplifyDemandedInstructionBits(Trunc))  in visitTrunc()
727     return &Trunc;  in visitTrunc()
779         return ConstantFoldCastOperand(Instruction::Trunc, ShAmt, A->getType(),  in visitTrunc()
801   if (Instruction *I = narrowBinOp(Trunc))  in visitTrunc()
804   if (Instruction *I = shrinkSplatShuffle(Trunc, Builder))  in visitTrunc()
807   if (Instruction *I = shrinkInsertElt(Trunc, Builder))  in visitTrunc()
827   if (Instruction *I = foldVecTruncToExtElt(Trunc, *this))  in visitTrunc()
868           Builder.CreateIntrinsic(Intrinsic::ctlz, {Trunc.getType()}, {A, B});  in visitTrunc()
874     if (Trunc.getFunction() &&  in visitTrunc()
875         Trunc.getFunction()->hasFnAttribute(Attribute::VScaleRange)) {  in visitTrunc()
877           Trunc.getFunction()->getFnAttribute(Attribute::VScaleRange);  in visitTrunc()
881           return replaceInstUsesWith(Trunc, VScale);  in visitTrunc()
1004   case Instruction::Trunc: // zext(trunc(x)) -> trunc(x) or zext(x)  in canEvaluateZExtd()
1184       Value *Trunc = Builder.CreateTrunc(A, DestTy);  in visitZExt()  local
1186       return BinaryOperator::CreateAnd(Trunc,  in visitZExt()
1187                                        ConstantInt::get(Trunc->getType(),  in visitZExt()
1354   case Instruction::Trunc: // sext(trunc(x)) -> trunc(x) or sext(x)  in canEvaluateSExtd()