https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69564
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jason at gcc dot gnu.org --- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to vincenzo Innocente from comment #3) > > Any reason you are using the c++ driver here? > Because I am interested in C++ performance > never imagined that the c++ front-end could make a difference on such a > code... > From my point of view it is even a more severe regression than just "lto" Yeah, didn't try to figure out whether the C vs. C++ thing is a regression. But I suspect the change to the C++ loop lowering. Certainly needs closer investigation.