Hi. I would like to use this thread to slightly describe differences in GCC and LLVM. I compared options support by both and:
UBSAN: 1) gcc: error: unrecognized argument to -fsanitize= option: ‘nullability-arg’ gcc: error: unrecognized argument to -fsanitize= option: ‘nullability-assign’ gcc: error: unrecognized argument to -fsanitize= option: ‘nullability-return’ I guess it's covered by -fsanitize=nonnull-attribute and -fsanitize=returns-nonnull-attribute. One can't have in GCC a local variable with non-null attribute (nullability-assign), right? 2) unsigned-integer-overflow As documented, not being a real UBSAN. Do we want that or seen as not useful? 3) function Indirect function pointer comparison using RTTI in C++. Would it be useful? Ideas? ASAN: For ASAN, there's quite up-to-date page: https://github.com/google/sanitizers/wiki/AddressSanitizerClangVsGCC-(5.0-vs-7.1) The page is quite up-to-date. Currently we should cover all what LLVM supports. Am I right? Or is there any interesting feature we miss? Thanks for ideas, Martin
