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reduce indentation

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llvm-svn: 92766
This commit is contained in:
Chris Lattner 2010-01-05 20:56:24 +00:00
parent 5781312f77
commit e293a03aff
1 changed files with 18 additions and 15 deletions
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33
lib/Transforms/InstCombine/InstCombineAddSub.cpp
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@ -35,20 +35,23 @@ static Constant *SubOne(ConstantInt *C) {
// Otherwise, return null.
//
static inline Value *dyn_castFoldableMul(Value *V, ConstantInt *&CST) {
if (V->hasOneUse() && V->getType()->isInteger())
if (Instruction *I = dyn_cast<Instruction>(V)) {
if (I->getOpcode() == Instruction::Mul)
if ((CST = dyn_cast<ConstantInt>(I->getOperand(1))))
return I->getOperand(0);
if (I->getOpcode() == Instruction::Shl)
if ((CST = dyn_cast<ConstantInt>(I->getOperand(1)))) {
// The multiplier is really 1 << CST.
uint32_t BitWidth = cast<IntegerType>(V->getType())->getBitWidth();
uint32_t CSTVal = CST->getLimitedValue(BitWidth);
CST = ConstantInt::get(V->getType()->getContext(),
APInt(BitWidth, 1).shl(CSTVal));
return I->getOperand(0);
}
if (!V->hasOneUse() || !V->getType()->isInteger())
return 0;
Instruction *I = dyn_cast<Instruction>(V);
if (I == 0) return 0;
if (I->getOpcode() == Instruction::Mul)
if ((CST = dyn_cast<ConstantInt>(I->getOperand(1))))
return I->getOperand(0);
if (I->getOpcode() == Instruction::Shl)
if ((CST = dyn_cast<ConstantInt>(I->getOperand(1)))) {
// The multiplier is really 1 << CST.
uint32_t BitWidth = cast<IntegerType>(V->getType())->getBitWidth();
uint32_t CSTVal = CST->getLimitedValue(BitWidth);
CST = ConstantInt::get(V->getType()->getContext(),
APInt(BitWidth, 1).shl(CSTVal));
return I->getOperand(0);
}
return 0;
}
@ -345,7 +348,7 @@ Instruction *InstCombiner::visitAdd(BinaryOperator &I) {
RHSConv->getOperand(0))) {
// Insert the new integer add.
Value *NewAdd = Builder->CreateNSWAdd(LHSConv->getOperand(0),
RHSConv->getOperand(0), "addconv");
RHSConv->getOperand(0), "addconv");
return new SExtInst(NewAdd, I.getType());
}
}