Transforms/InstCombine/InstCombineCasts.cpp

172   Instruction *Res = 0;
188     Res = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
202     Res = CastInst::CreateIntegerCast(I->getOperand(0), Ty,
208     Res = SelectInst::Create(I->getOperand(0), True, False);
218     Res = NPN;
226   Res->takeName(I);
227   return InsertNewInstWith(Res, *I);
253   unsigned Res = CastInst::isEliminableCastPair(firstOp, secondOp, SrcTy, MidTy,
259   if ((Res == Instruction::IntToPtr && SrcTy != DstIntPtrTy) ||
260       (Res == Instruction::PtrToInt && DstTy != SrcIntPtrTy))
261     Res = 0;
263   return Instruction::CastOps(Res);
459     Value *Res = EvaluateInDifferentType(Src, DestTy, false);
460     assert(Res->getType() == DestTy);
461     return ReplaceInstUsesWith(CI, Res);
563           Constant *Res = ConstantInt::get(Type::getInt1Ty(CI.getContext()),
565           Res = ConstantExpr::getZExt(Res, CI.getType());
566           return ReplaceInstUsesWith(CI, Res);
788     Value *Res = EvaluateInDifferentType(Src, DestTy, false);
789     assert(Res->getType() == DestTy);
796     if (MaskedValueIsZero(Res, APInt::getHighBitsSet(DestBitSize,
798       return ReplaceInstUsesWith(CI, Res);
801     Constant *C = ConstantInt::get(Res->getType(),
803     return BinaryOperator::CreateAnd(Res, C);
1085     Value *Res = EvaluateInDifferentType(Src, DestTy, true);
1086     assert(Res->getType() == DestTy);
1093     if (ComputeNumSignBits(Res) > DestBitSize - SrcBitSize)
1094       return ReplaceInstUsesWith(CI, Res);
1098     return BinaryOperator::CreateAShr(Builder->CreateShl(Res, ShAmt, "sext"),
1111       Value *Res = Builder->CreateShl(TI->getOperand(0), ShAmt, "sext");
1112       return BinaryOperator::CreateAShr(Res, ShAmt);