https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113247
Li Pan <pan2.li at intel dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pan2.li at intel dot com --- Comment #8 from Li Pan <pan2.li at intel dot com> --- The performance ratio of sha-test compared to scalar is about -2.2% when build with -mtune=generic-ooo. Aka the option -mtune=generic-ooo makes the ratio (compares to scalar) from -70% to -2.2%. I suppose the negative ratio may be caused by the part mentioned by Juzhe.