[PATCH] D155218: [InstCombine] Optimize addition/subtraction operations of splats of vscale multiplied by a constant

[Nikita Popov via Phabricator via llvm-commits]

nikic requested changes to this revision.
nikic added reviewers: nikic, goldstein.w.n.
nikic added a comment.
Herald added a subscriber: StephenFan.

Please make sure to pre-commit test coverage (https://llvm.org/docs/TestingGuide.html#precommit-workflow-for-tests). This is also missing some tests, in particular multi-use and negative tests.

Why are the LoopVectorize changes seen here not regressions (caused by a multi-use transform)? Why does this transform only operate on multiplies of vscale?


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  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D155218/new/

https://reviews.llvm.org/D155218