[all-commits] [llvm/llvm-project] 594669: [msan] Handle NEON vector load (#130457)

[Thurston Dang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5946696d6769e8190eb9e0860b5cac85eafd7951
      https://github.com/llvm/llvm-project/commit/5946696d6769e8190eb9e0860b5cac85eafd7951
  Author: Thurston Dang <thurston at google.com>
  Date:   2025-03-19 (Wed, 19 Mar 2025)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
    M llvm/test/Instrumentation/MemorySanitizer/AArch64/arm64-ld1.ll

  Log Message:
  -----------
  [msan] Handle NEON vector load (#130457)

This adds an explicit handler for:
- llvm.aarch64.neon.ld1x2, llvm.aarch64.neon.ld1x3,
llvm.aarch64.neon.ld1x4
- llvm.aarch64.neon.ld2, llvm.aarch64.neon.ld3, llvm.aarch64.neon.ld4
- llvm.aarch64.neon.ld2lane, llvm.aarch64.neon.ld3lane,
llvm.aarch64.neon.ld4lane
- llvm.aarch64.neon.ld2r, llvm.aarch64.neon.ld3r, llvm.aarch64.neon.ld4r
instead of relying on the default strict handler.

Updates the tests from https://github.com/llvm/llvm-project/pull/125267



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