On Wed, May 13, 2015 at 1:29 PM, Segher Boessenkool <seg...@kernel.crashing.org> wrote: > On Wed, May 13, 2015 at 01:25:16PM -0400, David Edelsohn wrote: >> > PR rtl-optimization/30967 >> > * config/rs6000/rs6000.c (rs6000_rtx_costs): Don't consider >> > destination mode for the cost of scc patterns. >> >> Okay. >> >> Should this be applied to GCC 5 branch? > > [ Testing is still in progress. ] > > It should be prefectly safe to backport; OTOH, it is just one of very > many cases where we generate an extra sign-extend, so I don't think it > is particularly useful. Your choice :-)
The other prereqs are backported, so probably should backport this also. Fixing this is a process, not an event. - David
