Roman Lebedev e465f9c303 [InstCombine] Negator: - (C - %x) --> %x - C (PR47997) ...

This relaxes one-use restriction on that `sub` fold,
since apparently the addition of Negator broke
preexisting `C-(C2-X) --> X+(C-C2)` (with C=0) fold.

2020-11-03 16:06:51 +03:00

21 KiB

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