[Bug rtl-optimization/68920] [6 Regression] Undesirable if-conversion for a rarely taken branch

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68920

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The cost model really has to be tuned so that this never hits on x86_64/i686,
even for two insns this will be already undesirable even for around 50%
probability, for likely or unlikely probability conditional moves are
undesirable even for a single instruction.