[Bug libstdc++/51798] [4.7 regression] libstdc++ atomicity performance regression due to __sync_fetch_and_add

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Jan 27 11:37:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51798

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-27 11:17:35 UTC ---
Created attachment 26480
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26480
gcc47-pr51798.patch

This is one of the few remaining P1s, so in order to speed this up, is this
patch what we are considering now?  If yes, I'll go ahead and test it on
i?86/x86_64/ppc/ppc64/s390/s390x.



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