[all-commits] [llvm/llvm-project] 9e6d2c: [ConstraintElim] Move after first instcombine run.

Florian Hahn via All-commits all-commits at lists.llvm.org
Tue Jan 3 05:25:27 PST 2023


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9e6d2c82d6aa40c5cd81443603e2d1ddbdccb65e
      https://github.com/llvm/llvm-project/commit/9e6d2c82d6aa40c5cd81443603e2d1ddbdccb65e
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2023-01-03 (Tue, 03 Jan 2023)

  Changed paths:
    M llvm/lib/Passes/PassBuilderPipelines.cpp

  Log Message:
  -----------
  [ConstraintElim] Move after first instcombine run.

Running ConstraintEliminiation after the first InstCombine run results
in slightly more simplifications on average.

There are is a tiny number of regressions, mostly due to CVP eliminating
a condition that ConstraintElimination would use, but in most cases
there's a slight improvement or no change.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D140853




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