On Fri, Mar 18, 2011 at 2:05 PM, Richard Henderson <r...@redhat.com> wrote: > On 03/18/2011 01:56 PM, H.J. Lu wrote: >> On Fri, Mar 18, 2011 at 12:51 PM, Eric Botcazou <ebotca...@adacore.com> >> wrote: >>>> Is this patch OK for trunk? >>> >>> This has always worked for the other ports AFAIK so I don't think we should >>> disable it without evaluating the impact on them. If reload has so many >>> problems with x32, maybe more fundamental changes should be made to the x86 >>> back-end to support it. >>> >> >> X32 port exposed many issues in GCC middle-end and RTL optimizations. >> The other ports never generate such asm statements combine has to deal with. >> Do you have any suggestions how to fix it in backend? > > How about analyzing the problem properly? > > All you posted was a patch, with no explanation of how the problem occurred. > Without that, no one can say whether this is the x32 port really tickling a > latent bug in the compiler, or whether it's a bug in your port. >
See analysis in: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47502 -- H.J.
