-fno-guess-branch-probability Do not guess branch probabilities using a randomized model.
Sometimes gcc will opt to use a randomized model to guess branch probabilities, when none are available from either profiling feedback (-fprofile-arcs) or __builtin_expect. This means that different runs of the compiler on the same program may produce different object code.
[^] # Re: Bof
Posté par pasBill pasGates . En réponse au journal Espionnage sous Linux ou délire paranoïaque ?. Évalué à 4.
C'etait le cas a l'epoque de gcc 3.x : http://gcc.gnu.org/onlinedocs/gcc-3.2/gcc/Optimize-Options.html
-fno-guess-branch-probability Do not guess branch probabilities using a randomized model.
Sometimes gcc will opt to use a randomized model to guess branch probabilities, when none are available from either profiling feedback (-fprofile-arcs) or __builtin_expect. This means that different runs of the compiler on the same program may produce different object code.