[all-commits] [llvm/llvm-project] 7faa8c: [ConstraintElimination] Fix undefined behaviour in...

[Zain Jaffal via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7faa8c6ec6d4518663f49b0298c1762d90cb14f5
      https://github.com/llvm/llvm-project/commit/7faa8c6ec6d4518663f49b0298c1762d90cb14f5
  Author: Zain Jaffal <z_jaffal at apple.com>
  Date:   2023-03-09 (Thu, 09 Mar 2023)

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

  Log Message:
  -----------
  [ConstraintElimination] Fix undefined behaviour in shl decomposition

Add checks to prevent decomposing constants bigger than 64.
relates to https://github.com/llvm/llvm-project/issues/61127

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D145677