[Bug gcov-profile/94369] 505.mcf_r is 6-7% slower at -Ofast -march=native with PGO+LTO than with just LTO

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94369

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The profile looks unconclusive, the # samples differ but evenly increase.  The
overall number of samples is missing - does that increase by 6-7%?