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Differential D5584 Diff 14338 lib/Transforms/InstCombine/InstCombineMulDivRem.cpp

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Show First 20 Lines • Show All 525 Lines • ▼ Show 20 Lines	if (AllowReassociate && isFiniteNonZeroFp(C)) {
RI->copyFastMathFlags(&I);		RI->copyFastMathFlags(&I);
return RI;		return RI;
}		}
}		}
}		}
}		}
}		}

		// sqrt(X) * sqrt(X) -> X
		if (AllowReassociate && (Op0 == Op1))
		if (IntrinsicInst *II = dyn_cast<IntrinsicInst>(Op0))
		if (II->getIntrinsicID() == Intrinsic::sqrt)
		return ReplaceInstUsesWith(I, II->getOperand(0));

// Under unsafe algebra do:		// Under unsafe algebra do:
// X * log2(0.5Y) = Xlog2(Y) - X		// X * log2(0.5Y) = Xlog2(Y) - X
if (AllowReassociate) {		if (AllowReassociate) {
Value *OpX = nullptr;		Value *OpX = nullptr;
Value *OpY = nullptr;		Value *OpY = nullptr;
IntrinsicInst *Log2;		IntrinsicInst *Log2;
detectLog2OfHalf(Op0, OpY, Log2);		detectLog2OfHalf(Op0, OpY, Log2);
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