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Format spacing and remove extra lines to comply with standards. NFC.

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Differential Revision: http://reviews.llvm.org/D5649
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219286 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Suyog Sarda 2014-10-08 08:37:49 +00:00
parent c720405b2a
commit 13ffdf88dc
1 changed files with 6 additions and 5 deletions
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11
lib/Transforms/InstCombine/InstCombineAddSub.cpp
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@ -1522,7 +1522,6 @@ Value *InstCombiner::OptimizePointerDifference(Value *LHS, Value *RHS,
return Builder->CreateIntCast(Result, Ty, true); return Builder->CreateIntCast(Result, Ty, true);
} }
Instruction *InstCombiner::visitSub(BinaryOperator &I) { Instruction *InstCombiner::visitSub(BinaryOperator &I) {
Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1); Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
@ -1595,21 +1594,23 @@ Instruction *InstCombiner::visitSub(BinaryOperator &I) {
// -(X >>u 31) -> (X >>s 31) // -(X >>u 31) -> (X >>s 31)
// -(X >>s 31) -> (X >>u 31) // -(X >>s 31) -> (X >>u 31)
if (C->isZero()) { if (C->isZero()) {
Value *X; ConstantInt *CI; Value *X;
ConstantInt *CI;
if (match(Op1, m_LShr(m_Value(X), m_ConstantInt(CI))) && if (match(Op1, m_LShr(m_Value(X), m_ConstantInt(CI))) &&
// Verify we are shifting out everything but the sign bit. // Verify we are shifting out everything but the sign bit.
CI->getValue() == I.getType()->getPrimitiveSizeInBits()-1) CI->getValue() == I.getType()->getPrimitiveSizeInBits() - 1)
return BinaryOperator::CreateAShr(X, CI); return BinaryOperator::CreateAShr(X, CI);
if (match(Op1, m_AShr(m_Value(X), m_ConstantInt(CI))) && if (match(Op1, m_AShr(m_Value(X), m_ConstantInt(CI))) &&
// Verify we are shifting out everything but the sign bit. // Verify we are shifting out everything but the sign bit.
CI->getValue() == I.getType()->getPrimitiveSizeInBits()-1) CI->getValue() == I.getType()->getPrimitiveSizeInBits() - 1)
return BinaryOperator::CreateLShr(X, CI); return BinaryOperator::CreateLShr(X, CI);
} }
} }
{ Value *Y; {
Value *Y;
// X-(X+Y) == -Y X-(Y+X) == -Y // X-(X+Y) == -Y X-(Y+X) == -Y
if (match(Op1, m_Add(m_Specific(Op0), m_Value(Y))) || if (match(Op1, m_Add(m_Specific(Op0), m_Value(Y))) ||
match(Op1, m_Add(m_Value(Y), m_Specific(Op0)))) match(Op1, m_Add(m_Value(Y), m_Specific(Op0))))