================ @@ -8,11 +8,18 @@ MemorySanitizer Introduction ============ -MemorySanitizer is a detector of uninitialized reads. It consists of a +MemorySanitizer is a detector of uninitialized memory use. It consists of a compiler instrumentation module and a run-time library. Typical slowdown introduced by MemorySanitizer is **3x**. +Here is a not comprehensive list cases when MemorySanitizer will report an error: + +* A code uses uninitialized value in a conditional branch. +* Uninitialized pointer was used for memory accesses. +* Uninitialized value passed or returned from a function call, when it considered an undefined behavior. The check can be disabled with ``-fno-sanitize-memory-param-retval``. ---------------- thurstond wrote:
Nit: "which is"? https://github.com/llvm/llvm-project/pull/101105 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
