[compiler-rt] [ASan][Windows] Fix memmove/memcpy interception on x64 (PR #192060)

via llvm-commits llvm-commits at lists.llvm.org
Tue Apr 14 08:06:32 PDT 2026


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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,inc -- compiler-rt/lib/asan/asan_allocator.cpp compiler-rt/lib/asan/asan_win_static_runtime_thunk.cpp compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_memintrinsics.inc --diff_from_common_commit
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View the diff from clang-format here.
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``````````diff
diff --git a/compiler-rt/lib/asan/asan_allocator.cpp b/compiler-rt/lib/asan/asan_allocator.cpp
index d42282ad2..8cee66bdd 100644
--- a/compiler-rt/lib/asan/asan_allocator.cpp
+++ b/compiler-rt/lib/asan/asan_allocator.cpp
@@ -806,7 +806,8 @@ struct Allocator {
       uptr memcpy_size = Min(new_size, m->UsedSize());
       // If realloc() races with free(), we may start copying freed memory.
       // However, we will report racy double-free later anyway.
-      // Avoid intercepted CRT memcpy/memmove (see sanitizer_allocator_combined.h).
+      // Avoid intercepted CRT memcpy/memmove (see
+      // sanitizer_allocator_combined.h).
       internal_memcpy(new_ptr, old_ptr, memcpy_size);
       Deallocate(old_ptr, 0, 0, stack, FROM_MALLOC);
     }

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https://github.com/llvm/llvm-project/pull/192060


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