[Bug rtl-optimization/69847] Spec 2006 403.gcc slows down with -mlra vs. reload on PowerPC

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69847

--- Comment #17 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Vlad, the patch checks out very well on powerpc64le.  403.gcc no longer
degrades.  We are seeing some very nice improvements from LRA over reload on a
few benchmarks (435.gromacs leads the way with +9.5%).  Everything in CPU2006
is positive or noise except for 401.bzip2, which shows about a 2% degradation. 
We'll look into that separately to see if it's real and open another bug if
there is anything to report.

Once the patch is in place, I think we will be ready to switch the POWER server
targets to use LRA by default.

Thanks!  Excellent results.

Bill