MemorySanitizer is a compile-time instrumentation layer in clang but not GCC. Along with AddressSanitizer mostly makes the run-time instrumentation of Valgrind redundant. It is a bit more difficult to set up, as a result of working with uninstrumented libraries will lead into false positives. ON is imagined to work ‘out of the box’. This job will probably be saved open until all assessments pass and MemorySanitizer may be enabled on CI systems. These directions are for clang-10. Word: to make use of different clang (tested with clang-8, clang-9, clang-11, clang-13), simply change 10 with the foremost model of the compiler above. RelWithDebInfo is implied. Ok, this is nearly minimal. Join and Spider are disabled due to test failures that weren't investigated yet. MDEV-34921 was tested in this manner. OFF; it's enabled by default and seems to break operations like memcpy() with RelWithDebInfo but not Debug. 1 besides when working code in a debugger. On some occasions, it might cause truncation of the diagnostic messages. PATH to a script like the following. http://frp-old.com:41879/isidracrayton

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