On Mon, Sep 24, 2012 at 2:04 PM, Dinar Temirbulatov <dtemirbula...@gmail.com> wrote: > Hi, > I noticed some minor regression with singed integer operations in "the > proprietary" code since > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45232. Of course, I could > use "-fwrapv" flag but my question is: why we could not add overflow > checking in for example int_const_binop() at fold-const.c for signed > integers restore original behavior of the reassociation pass?
Because the compiler may not introduce expressions that may overflow. Richard. > thanks, Dinar.
