[PATCH] D71568: [InstCombine] `select + mul` -> `select + shl` with power of twos.

[Danila Kutenin via Phabricator via llvm-commits]

danlark created this revision.
danlark added reviewers: spatel, lebedev.ri.
danlark added a project: LLVM.
danlark added parent revisions: D71567:  [InstCombine] Add tests for `select + mul` for power of twos. NFC, D71561: [InstCombine] Refactor FoldUDivAction for future usage with multiplication. NFC.

Now select + mul transforms to select + shl with power of twos known in select.

Patch by Danila Kutenin. email:danilak at google.com, github:danlark1@ . I don't have commit rights.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71568

Files:
  llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
  llvm/test/Transforms/InstCombine/mul.ll

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