Seth Brenith 0c72c71900 Move branch inversion on ==0 into platform-agnostic reducer ... This change is based on a discussion from https://crrev.com/c/v8/v8/+/2053769/4/src/compiler/machine-operator-reducer.cc#1696 wherein Tobias suggested moving the folding away of ==0 operations out of the platform-specific instruction selectors and into the MachineOperatorReducer. I noticed that CommonOperatorReducer already handles some very similar cases, so I have tried putting the ==0 folding into CommonOperatorReducer instead. I'm happy to move it into MachineOperatorReducer if that's better; I still don't have a very good understanding of how roles are separated among reducers. Change-Id: Ia0285bd9fafeef29d87cc88654bd6d355d467e8f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2076498 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#66688}		2020-03-12 17:56:56 +00:00
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instruction-selector-arm-unittest.cc	Move branch inversion on ==0 into platform-agnostic reducer	2020-03-12 17:56:56 +00:00