[PATCH] D76439: [SDAG] fix crash in getNegatedExpression() from altered number of uses

[qshanz via Phabricator via llvm-commits]

steven.zhang added a comment.

We need to update the cost. For now, it returns the first operand immediately if it is not expensive. But it could be neutral. And we will have problems if the cost of second operand is cheap. Because we should return cheap, but now, it is neutral.


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  https://reviews.llvm.org/D76439/new/

https://reviews.llvm.org/D76439