On Sat, Feb 15, 2014 at 2:28 PM, Jakub Jelinek <ja...@redhat.com> wrote: > On Sat, Feb 15, 2014 at 02:23:24PM +0530, Prathamesh Kulkarni wrote: >> This patch folds strchr (e, 0) to e + strlen (e), if e has no side-effects. >> Bootstrapped, regtested on x86_64-unknown-linux-gnu >> Ok for trunk ? > > Why do you think it is a good idea? It is often very much the opposite. I maybe completely wrong, but since strchr(p, 0), matches each character of p with c until '\0' is found, I thought it would be faster to call strlen, since strlen would just skip over characters upto '\0'. Also, I saw this committed in llvm trunk recently, and thought it might be a good idea: http://llvm-reviews.chandlerc.com/rL200736
> > Jakub
