[Bug lto/49700] LTO compile time hog

Joost.VandeVondele at mat dot ethz.ch gcc-bugzilla@gcc.gnu.org
Tue May 8 18:59:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49700

Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |FIXED

--- Comment #9 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2012-05-08 18:52:12 UTC ---
trying 4.7.X instead it actually looks very reasonable now.

Using -flto=jobserver -fuse-linker-plugin -ftime-report -O3 -march=native
-ffast-math -g -ffree-form

I get CP2K to build in 4min on a 32 cores server. The time report also looks
OK. I'll close this PR as fixed (to issue with 4.8 is tracked in PR 45586).



More information about the Gcc-bugs mailing list