On Tue, 2012-10-30 at 01:09 -0600, Michael Buro wrote: > Recently I came across http://embed.cs.utah.edu/ioc/ which describes a > sophisticated integer overflow checker for Clang. The reported results > obtained by analyzing C/C++ open source projects make a convincing > case for implementing such functionality in gcc/g++ as well. Is > somebody looking into this?
Not sure, but we've still got a half-broken -ftrapv :) E.g. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35412 Or like on SH, some of the arithmetic ops get expanded to libcalls and some (afair SImode plus and minus) end up as normal ops. Cheers, Oleg
