[all-commits] [llvm/llvm-project] 6dfd8d: [asan] Rewrite Windows/heaprealloc_alloc_zero chec...

[Thurston Dang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6dfd8d0ab46e64d0c30d2b9c60f212b50171fc9d
      https://github.com/llvm/llvm-project/commit/6dfd8d0ab46e64d0c30d2b9c60f212b50171fc9d
  Author: Thurston Dang <thurston at google.com>
  Date:   2025-08-30 (Sat, 30 Aug 2025)

  Changed paths:
    M compiler-rt/test/asan/TestCases/Windows/heaprealloc_alloc_zero.cpp

  Log Message:
  -----------
  [asan] Rewrite Windows/heaprealloc_alloc_zero check to avoid dereference (#156211)

The test currently checks that 1-byte is allocated when malloc(0) is
called, by dereferencing the pointer.
https://github.com/llvm/llvm-project/pull/155943 changed ASan to
consider the dereference to be a heap buffer overflow. This patch
changes the test to check the allocated size is still 1-byte, but not
dereference the pointer.

This aims to fix the breakage reported in
https://github.com/llvm/llvm-project/pull/155943#issuecomment-3239543505

It also enables the test for 64-bit Windows.



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