[all-commits] [llvm/llvm-project] 743632: Revert "[clang] [ARM] Explicitly enable NEON for W...

[Martin Storsjö via All-commits]

  Branch: refs/heads/release/20.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 7436329bfee9b2af90e6954e4a6f4be21137b8f1
      https://github.com/llvm/llvm-project/commit/7436329bfee9b2af90e6954e4a6f4be21137b8f1
  Author: Martin Storsjö <martin at martin.st>
  Date:   2025-04-11 (Fri, 11 Apr 2025)

  Changed paths:
    M clang/lib/Driver/ToolChains/Arch/ARM.cpp
    M clang/test/Driver/arm-mfpu.c
    M clang/test/Preprocessor/arm-target-features.c

  Log Message:
  -----------
  Revert "[clang] [ARM] Explicitly enable NEON for Windows/Darwin targets (#122095)"

This reverts commit 8fa0f0efce5fb81eb422e6d7eec74c66dafef4a3.

This change broke assembling for e.g. "armv7s-apple-darwin" triples,
which should enable VFPv4 by default (and did that before this
change), but after this change, only NEON/VFPv3 were available.

This is being fixed properly in latest git main as part of
https://github.com/llvm/llvm-project/pull/130623 (possibly as a
split out change), but any proper fix here seems to have too
much potential surprises for an existing release branch.



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