[all-commits] [llvm/llvm-project] 57b9c1: VectorCombine: fix logical error after m_Trunc mat...

[Ramkumar Ramachandra via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 57b9c15227ec15a5e2abf4587d7d0ad536cff9e6
      https://github.com/llvm/llvm-project/commit/57b9c15227ec15a5e2abf4587d7d0ad536cff9e6
  Author: Ramkumar Ramachandra <r at artagnon.com>
  Date:   2024-05-08 (Wed, 08 May 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/test/Transforms/VectorCombine/pr88796.ll

  Log Message:
  -----------
  VectorCombine: fix logical error after m_Trunc match (#91201)

The matcher m_Trunc() matches an Operator with a given Opcode, which
could either be an Instruction or ConstExpr.
VectorCombine::foldTruncFromReductions() incorrectly assumes that the
pattern matched is always an Instruction, and attempts a cast. Fix this.

Fixes #88796.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications