[all-commits] [llvm/llvm-project] fd0871: [SandboxVec][Legality] Diamond reuse multi input (...

[vporpo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fd087135efe1b62b506c3caef3fef83242a8e504
      https://github.com/llvm/llvm-project/commit/fd087135efe1b62b506c3caef3fef83242a8e504
  Author: vporpo <vporpodas at google.com>
  Date:   2025-01-22 (Wed, 22 Jan 2025)

  Changed paths:
    M llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/Legality.h
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/Legality.cpp
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/Passes/BottomUpVec.cpp
    M llvm/test/Transforms/SandboxVectorizer/bottomup_basic.ll

  Log Message:
  -----------
  [SandboxVec][Legality] Diamond reuse multi input (#123426)

This patch implements the diamond pattern where we are vectorizing
toward the top of the diamond from both edges, but the second edge may
use elements from a different vector or just scalar values. This
requires some additional packing code (see lit test).



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