[all-commits] [llvm/llvm-project] 940e03: [clang] Also disable scalable vectorisation for ve...

[Gaëtan Bossu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 940e03584de8bfbcd86fc25de9a738d067d3a342
      https://github.com/llvm/llvm-project/commit/940e03584de8bfbcd86fc25de9a738d067d3a342
  Author: Gaëtan Bossu <gaetan.bossu at arm.com>
  Date:   2026-09-29 (Tue, 29 Sep 2026)

  Changed paths:
    M clang/lib/CodeGen/CGLoopInfo.cpp
    M clang/test/CodeGenCXX/pragma-loop-predicate.cpp
    M clang/test/CodeGenCXX/pragma-loop-safety.cpp
    M clang/test/CodeGenCXX/pragma-loop.cpp

  Log Message:
  -----------
  [clang] Also disable scalable vectorisation for vectorize(disable) (#227254)

This ensures that #pragma clang loop vectorize(disable) also disables
scalable vectorisation. Only setting the width to 1 could potentially
enable LoopVectorizer to vectorize with VF = vscale x 1. Especially with
the -scalable-vectorization=preferred option.



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