[all-commits] [llvm/llvm-project] 373180: [SLP]Fix PR104422: Wrong value truncation

[Alexey Bataev via All-commits]

  Branch: refs/heads/release/19.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 373180b440d04dc3cc0f6111b06684d18779d7c8
      https://github.com/llvm/llvm-project/commit/373180b440d04dc3cc0f6111b06684d18779d7c8
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-09-13 (Fri, 13 Sep 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/operand-is-reduced-val.ll

  Log Message:
  -----------
  [SLP]Fix PR104422: Wrong value truncation

The minbitwidth restrictions can be skipped only for immediate reduced
values, for other nodes still need to check if external users allow
bitwidth reduction.

Fixes https://github.com/llvm/llvm-project/issues/104422

(cherry picked from commit 56140a8258a3498cfcd9f0f05c182457d43cbfd2)



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