On Thu, 30 Apr 2020 at 22:27, Tom N <nospam@xxxxxxxxxxxxxxx> wrote: > > The man page for -fsanitize=undefined lists a bunch of sub-options (eg. -fsanitize=shift, -fsanitize=shift-exponent, etc). If I include -fsanitize=undefined does it enable all of the sub-options, or none, or something in between? If it doesn't enable all sub-options, is there an easy way to do that short of specifying all of them? The man page says: "Unlike other similar options, -fsanitize=float-divide-by-zero is not enabled by -fsanitize=undefined" and "Unlike other similar options, -fsanitize=float-cast-overflow is not enabled by -fsanitize=undefined" So it seems reasonable to assume that all the other suboptions are enabled by -fsanitize=undefined, and if you want *all* of them then use -fsanitize=undefined -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow
