[Bug middle-end/81441] slowdown due to -fpeel-loops and -ftracer added by -fprofile-use

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81441

Joost VandeVondele  changed:

   What|Removed |Added

 CC||Joost.VandeVondele at mat dot 
ethz
   ||.ch

--- Comment #2 from Joost VandeVondele  
---
No, this is profile-use after a profile-generate, so standard PGO setup. The
profile-generate is using the same benchmark for generation, so coverage should
be good.

[Bug middle-end/81441] slowdown due to -fpeel-loops and -ftracer added by -fprofile-use

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81441

Richard Biener  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Target||x86_64-*-*
 CC||hubicka at gcc dot gnu.org
Version|5.4.0   |7.1.0

--- Comment #1 from Richard Biener  ---
So this is -fprofile-use without previously profiling with -fprofile-generate? 
Esp. -ftracer depends on a usable profile to not go off limits.