[Bug target/29256] [4.4/4.5/4.6/4.7 regression] loop performance regression

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Jan 12 12:28:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29256

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |powerpc-*-*
          Component|middle-end                  |target

--- Comment #41 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-12 12:26:59 UTC ---
Seems to be more-or-less target dependent, so adding a list of targets
affected.

For powerpc we still use N induction variables after unrolling instead of just
one.  Which I suppose was the point of this regression report.



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