[all-commits] [llvm/llvm-project] 2b6277: [ConstraintElimination] Decompose or instruction i...

[Zain Jaffal via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2b62774b653affb7e5ef35e25745e80612b990a9
      https://github.com/llvm/llvm-project/commit/2b62774b653affb7e5ef35e25745e80612b990a9
  Author: Zain Jaffal <z_jaffal at apple.com>
  Date:   2023-03-07 (Tue, 07 Mar 2023)

  Changed paths:
    M llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
    M llvm/test/Transforms/ConstraintElimination/or.ll

  Log Message:
  -----------
  [ConstraintElimination] Decompose or instruction if the constant operand < 2^known_zero_bits of the first operand.

The or operation can be represented as an add instruction.

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D142546