[all-commits] [llvm/llvm-project] bbde3f: [msan] Support vst1x_{2, 3, 4} and vst_{2, 3, 4} with ...

[Thurston Dang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bbde3f6e9df018975bc84fa23ba510360b6d715c
      https://github.com/llvm/llvm-project/commit/bbde3f6e9df018975bc84fa23ba510360b6d715c
  Author: Thurston Dang <thurston at google.com>
  Date:   2024-07-29 (Mon, 29 Jul 2024)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
    M llvm/test/Instrumentation/MemorySanitizer/AArch64/neon_vst.ll
    M llvm/test/Instrumentation/MemorySanitizer/AArch64/neon_vst_float.ll
    M llvm/test/Instrumentation/MemorySanitizer/AArch64/neon_vst_origins.ll

  Log Message:
  -----------
  [msan] Support vst1x_{2,3,4} and vst_{2,3,4} with floating-point parameters (#100644)

Cloning the vst_ intrinsics to apply them to the shadows did not work if
the arguments were floating-point, since the shadows are integers. This
patch changes MSan to create an intrinsic of the correct integer types.

Additionally, this patch adds support for vst1x_{2,3,4}; these can be
handled similarly to vst_{2,3,4}, since in all cases we are adapting the
corresponding intrinsic.
    
This also updates the tests.



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