[PATCH] D141086: [SDAG] try to avoid multiply for X*Y==0

[Dave Green via Phabricator via llvm-commits]

dmgreen accepted this revision.
dmgreen added a comment.

Sounds OK. Thanks

I think we can save an extra instruction on the i8/i16 cases that use a tst if we fold an and/or into a csel. I'll see if I can put together a patch.


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