https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96337
--- Comment #5 from Jan Hubicka <hubicka at gcc dot gnu.org> --- OK, I started with checking Himeno where phoronix reports 4377->2681 on my notebook (Intel(R) Core(TM) i7-6600U CPU) there may be around 1-5% regression that is not inliner related GCC 10 Loop executed for 7445 times Gosa : 2.924613e-08 MFLOPS measured : 2346.645663 cpu : 50.172505 Score based on Pentium III 600MHz using Fortran 77: 28.617630 GCC 9 Loop executed for 8253 times Gosa : 9.062229e-09 MFLOPS measured : 2454.019320 cpu : 53.184180 Score based on Pentium III 600MHz using Fortran 77: 29.927065 The internal loops and inlining looks almost identical.