[PATCH] D95141: [InstCombine] Remove unused llvm.experimental.noalias.scope.decl

[Jeroen Dobbelaere via Phabricator via llvm-commits]

jeroen.dobbelaere updated this revision to Diff 318768.
jeroen.dobbelaere edited the summary of this revision.
jeroen.dobbelaere added a comment.

Look at both !alias.scope and !noalias to decide when to omit a declaration.
During the analysis of !alias.scope and !nolias : when a 'list of scopes' was already analysed we do not need to go over it again.

See https://llvm-compile-time-tracker.com/index.php?config=O3&stat=instructions&branch=dobbelaj-snps/perf/D95141_20210123_02 for the compile time effect.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D95141/new/

https://reviews.llvm.org/D95141

Files:
  llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
  llvm/test/Transforms/Coroutines/coro-retcon-resume-values.ll
  llvm/test/Transforms/Coroutines/coro-retcon-value.ll
  llvm/test/Transforms/Coroutines/coro-retcon.ll
  llvm/test/Transforms/Coroutines/ex2.ll
  llvm/test/Transforms/Coroutines/ex3.ll
  llvm/test/Transforms/Coroutines/ex4.ll
  llvm/test/Transforms/InstCombine/noalias-scope-decl.ll
  llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll
  llvm/test/Transforms/PhaseOrdering/instcombine-sroa-inttoptr.ll

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