[all-commits] [llvm/llvm-project] e202db: [SLP]Initial support for copyable elements (non-sc...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e202dba288edd47f1b370cc43aa8cd36a924e7c1
      https://github.com/llvm/llvm-project/commit/e202dba288edd47f1b370cc43aa8cd36a924e7c1
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2025-07-21 (Mon, 21 Jul 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/buildvector-schedule-for-subvector.ll
    M llvm/test/Transforms/SLPVectorizer/X86/full-match-with-poison-scalar.ll
    M llvm/test/Transforms/SLPVectorizer/X86/node-outside-used-only.ll
    M llvm/test/Transforms/SLPVectorizer/X86/non-schedulable-instructions-become-schedulable.ll
    M llvm/test/Transforms/SLPVectorizer/X86/pr47642.ll
    M llvm/test/Transforms/SLPVectorizer/alternate-non-profitable.ll

  Log Message:
  -----------
  [SLP]Initial support for copyable elements (non-schedulable only)

Adds initial support for copyable elements. This patch only models adds
and model copyable elements as add <element>, 0, i.e. uses identity
constants for missing lanes.
Only support for elements, which do not require scheduling, is added to
reduce size of the patch.

Reviewers: RKSimon, hiraditya

Reviewed By: RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/140279



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