https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88784
--- Comment #15 from rguenther at suse dot de <rguenther at suse dot de> --- On Fri, 24 May 2019, ffengqi at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88784 > > --- Comment #14 from Qi Feng <ffengqi at gcc dot gnu.org> --- > Checking .original and .optimized file is just a quick method I use to check > whether an optimization happened (if not happen in first and last pass, > probably it didn't happen). I didn't mean or think the transform should > happen > in these passes. > > Using the second pattern, the result of transform already showed in .original > file, so I think it maybe happened earlier (like in GENERIC). > > And I tried the first pattern again using a totally clean debug build > (bootstrap disabled), still didn't see the transformation happen. I don't > know > what went wrong. :( > > (I tested it on a ppc64le machine, don't know if that matters) It can matter because we might have gimplified the && to control flow.
