return Builder->CreateIntCast(Result, Ty, true);
}
-
Instruction *InstCombiner::visitSub(BinaryOperator &I) {
Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
// -(X >>u 31) -> (X >>s 31)
// -(X >>s 31) -> (X >>u 31)
if (C->isZero()) {
- Value *X; ConstantInt *CI;
+ Value *X;
+ ConstantInt *CI;
if (match(Op1, m_LShr(m_Value(X), m_ConstantInt(CI))) &&
// 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);
if (match(Op1, m_AShr(m_Value(X), m_ConstantInt(CI))) &&
// 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);
}
}
- { Value *Y;
+ {
+ Value *Y;
// X-(X+Y) == -Y X-(Y+X) == -Y
if (match(Op1, m_Add(m_Specific(Op0), m_Value(Y))) ||
match(Op1, m_Add(m_Value(Y), m_Specific(Op0))))