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Simplify code by using value::takename

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34176 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-02-11 01:23:03 +00:00
parent 046800a712
commit 6934a04a8c
6 changed files with 61 additions and 71 deletions
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14
lib/Transforms/Scalar/Reassociate.cpp
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@ -189,9 +189,8 @@ static BinaryOperator *isReassociableOp(Value *V, unsigned Opcode) {
static Instruction *LowerNegateToMultiply(Instruction *Neg) {
Constant *Cst = ConstantInt::getAllOnesValue(Neg->getType());
std::string NegName = Neg->getName(); Neg->setName("");
Instruction *Res = BinaryOperator::createMul(Neg->getOperand(1), Cst, NegName,
Neg);
Instruction *Res = BinaryOperator::createMul(Neg->getOperand(1), Cst, "",Neg);
Res->takeName(Neg);
Neg->replaceAllUsesWith(Res);
Neg->eraseFromParent();
return Res;
@ -405,11 +404,10 @@ static Instruction *BreakUpSubtract(Instruction *Sub) {
// Calculate the negative value of Operand 1 of the sub instruction...
// and set it as the RHS of the add instruction we just made...
//
std::string Name = Sub->getName();
Sub->setName("");
Value *NegVal = NegateValue(Sub->getOperand(1), Sub);
Instruction *New =
BinaryOperator::createAdd(Sub->getOperand(0), NegVal, Name, Sub);
BinaryOperator::createAdd(Sub->getOperand(0), NegVal, "", Sub);
New->takeName(Sub);
// Everyone now refers to the add instruction.
Sub->replaceAllUsesWith(New);
@ -432,9 +430,9 @@ static Instruction *ConvertShiftToMul(Instruction *Shl) {
Constant *MulCst = ConstantInt::get(Shl->getType(), 1);
MulCst = ConstantExpr::getShl(MulCst, cast<Constant>(Shl->getOperand(1)));
std::string Name = Shl->getName(); Shl->setName("");
Instruction *Mul = BinaryOperator::createMul(Shl->getOperand(0), MulCst,
Name, Shl);
"", Shl);
Mul->takeName(Shl);
Shl->replaceAllUsesWith(Mul);
Shl->eraseFromParent();
return Mul;