[PATCH] D151394: [LSR] Treat URem as uninteresting

[Peixin Qiao via Phabricator via llvm-commits]

peixin created this revision.
peixin added reviewers: nikic, reames.
peixin added projects: All, LLVM.
Herald added subscribers: StephenFan, javed.absar, hiraditya.
peixin requested review of this revision.
Herald added a subscriber: llvm-commits.

The URem instruction should be uninteresting and be treated as the user.
There is no URem SCEV expression, and the URem operation is analyzed as
Add SCEV. So, we need to check the opcode of URem instruction in the
instruction interesting check function.

Fix https://github.com/llvm/llvm-project/issues/62852.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D151394

Files:
  llvm/lib/Analysis/IVUsers.cpp
  llvm/test/Transforms/LoopStrengthReduce/scaling-factor-incompat-type.ll
  llvm/test/Transforms/LoopStrengthReduce/urem-use-type-conversion.ll

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