[all-commits] [llvm/llvm-project] 8c1dba: [VectorCombine] Allow shuffling between vectors th...

[hanbeom via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8c1dbac304d2f3d9e9685c1f4fd8b3e133360893
      https://github.com/llvm/llvm-project/commit/8c1dbac304d2f3d9e9685c1f4fd8b3e133360893
  Author: hanbeom <kese111 at gmail.com>
  Date:   2025-02-06 (Thu, 06 Feb 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    A llvm/test/Transforms/VectorCombine/X86/extract-insert-poison.ll
    A llvm/test/Transforms/VectorCombine/X86/extract-insert.ll
    M llvm/test/Transforms/VectorCombine/X86/load-inseltpoison.ll

  Log Message:
  -----------
  [VectorCombine] Allow shuffling between vectors the same type but different element sizes (#121216)

`foldInsExtVectorToShuffle` function combines the extract/insert of a vector into a vector through a shuffle. However, we only supported coupling between vectors of the same size.

This commit allows combining extract/insert for vectors of the same type but with different sizes by converting the length of the vectors.

Proof: https://alive2.llvm.org/ce/z/ELNLr7
Fixed https://github.com/llvm/llvm-project/issues/120772



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