https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102473
--- Comment #15 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to H.J. Lu from comment #14) > (In reply to Hongtao.liu from comment #13) > > (In reply to H.J. Lu from comment #12) > > > Are glibc regressions real? Please show the affected glibc assembly codes > > > before and after. > > > > Assembly codes is the same, but DSB coverage drop down. before my commit > > front-end bound of libc-2.31.so is 1.2%, after my commit front-end bound > > raise up to 21.9%, use -falign-functions=64 doesn't help. > > > > The below code is copy from one of libc functions which has big front-end > > bounds > > > > Which functions in glibc get lower DSB coverage? About a dozen small functions have been affected, no symbol info, the second column is time(seconds) func@0x5eed4 1.77755 func@0x58de4 1.53788 func@0x76f20 0.963671 func@0x5ea50 0.758953 func@0x83750 0.349518 func@0x60d59 0.284607 func@0x799e4 0.164773 func@0x59b64 0.15978 func@0x8f070 0.1448
