Displaying 1 result from an estimated 1 matches for "m_add".
Did you mean:
g_add
2015 Apr 15
2
[LLVMdev] Instruction combiner multiplication canonicalization
...flow property.
Please confirm my understanding.
<File: InstCombineMulDivRem.cpp >
168 Instruction *InstCombiner::visitMul(BinaryOperator &I) {
268 // Canonicalize (X+C1)*CI -> X*CI+C1*CI.
269 {
270 Value *X;
271 Constant *C1;
272 if (match(Op0, m_OneUse(m_Add(m_Value(X), m_Constant(C1))))) {
273 Value *Mul = Builder->CreateMul(C1, Op1);
274 // Only go forward with the transform if C1*CI simplifies to a tidier
275 // constant.
276 if (!match(Mul, m_Mul(m_Value(), m_Value())))
277 return BinaryOperator::Cr...