[all-commits] [llvm/llvm-project] ba39a6: [msan] Instrument vtest instrinsics
Vitaly Buka via All-commits
all-commits at lists.llvm.org
Wed Sep 21 16:58:07 PDT 2022
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: ba39a6e14a528a14ce2e10c49893a5a5e0e7a4a4
https://github.com/llvm/llvm-project/commit/ba39a6e14a528a14ce2e10c49893a5a5e0e7a4a4
Author: Vitaly Buka <vitalybuka at google.com>
Date: 2022-09-21 (Wed, 21 Sep 2022)
Changed paths:
M llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
M llvm/test/Instrumentation/MemorySanitizer/avx-intrinsics-x86.ll
M llvm/test/Instrumentation/MemorySanitizer/sse41-intrinsics-x86.ll
Log Message:
-----------
[msan] Instrument vtest instrinsics
Instrumentation just ORs shadow of inputs.
I assume some result shadow bits can be reset if we go into specifics of particular checks,
but as-is it is still an improvement against existing default strict instruction handler, when
every set bit of input shadow is reported as an error.
Reviewed By: kda
Differential Revision: https://reviews.llvm.org/D134123
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