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variable names start with a capital letter; NFC 

llvm-svn: 265968
This commit is contained in:
Sanjay Patel 2016-04-11 17:25:23 +00:00
parent 9b1b7f0803
commit 4b9c682acf
1 changed files with 9 additions and 9 deletions
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18
llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
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@ -110,7 +110,7 @@ static bool canEvaluateShiftedShift(unsigned FirstShiftAmt,
/// where the client will ask if E can be computed shifted right by 64-bits. If
/// this succeeds, the GetShiftedValue function will be called to produce the
/// value.
static bool CanEvaluateShifted(Value *V, unsigned NumBits, bool isLeftShift,
static bool CanEvaluateShifted(Value *V, unsigned NumBits, bool IsLeftShift,
InstCombiner &IC, Instruction *CxtI) {
// We can always evaluate constants shifted.
if (isa<Constant>(V))
@ -124,8 +124,8 @@ static bool CanEvaluateShifted(Value *V, unsigned NumBits, bool isLeftShift,
// the value which means that we don't care if the shift has multiple uses.
// TODO: Handle opposite shift by exact value.
ConstantInt *CI = nullptr;
if ((isLeftShift && match(I, m_LShr(m_Value(), m_ConstantInt(CI)))) ||
(!isLeftShift && match(I, m_Shl(m_Value(), m_ConstantInt(CI))))) {
if ((IsLeftShift && match(I, m_LShr(m_Value(), m_ConstantInt(CI)))) ||
(!IsLeftShift && match(I, m_Shl(m_Value(), m_ConstantInt(CI))))) {
if (CI->getZExtValue() == NumBits) {
// TODO: Check that the input bits are already zero with MaskedValueIsZero
#if 0
@ -154,19 +154,19 @@ static bool CanEvaluateShifted(Value *V, unsigned NumBits, bool isLeftShift,
case Instruction::Or:
case Instruction::Xor:
// Bitwise operators can all arbitrarily be arbitrarily evaluated shifted.
return CanEvaluateShifted(I->getOperand(0), NumBits, isLeftShift, IC, I) &&
CanEvaluateShifted(I->getOperand(1), NumBits, isLeftShift, IC, I);
return CanEvaluateShifted(I->getOperand(0), NumBits, IsLeftShift, IC, I) &&
CanEvaluateShifted(I->getOperand(1), NumBits, IsLeftShift, IC, I);
case Instruction::Shl:
case Instruction::LShr:
return canEvaluateShiftedShift(NumBits, isLeftShift, I, IC, CxtI);
return canEvaluateShiftedShift(NumBits, IsLeftShift, I, IC, CxtI);
case Instruction::Select: {
SelectInst *SI = cast<SelectInst>(I);
Value *TrueVal = SI->getTrueValue();
Value *FalseVal = SI->getFalseValue();
return CanEvaluateShifted(TrueVal, NumBits, isLeftShift, IC, SI) &&
CanEvaluateShifted(FalseVal, NumBits, isLeftShift, IC, SI);
return CanEvaluateShifted(TrueVal, NumBits, IsLeftShift, IC, SI) &&
CanEvaluateShifted(FalseVal, NumBits, IsLeftShift, IC, SI);
}
case Instruction::PHI: {
// We can change a phi if we can change all operands. Note that we never
@ -174,7 +174,7 @@ static bool CanEvaluateShifted(Value *V, unsigned NumBits, bool isLeftShift,
// instructions with a single use.
PHINode *PN = cast<PHINode>(I);
for (Value *IncValue : PN->incoming_values())
if (!CanEvaluateShifted(IncValue, NumBits, isLeftShift, IC, PN))
if (!CanEvaluateShifted(IncValue, NumBits, IsLeftShift, IC, PN))
return false;
return true;
}