This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [RS6000] powerpc64le -ffixed-cr2 -ffixed-cr3 -ffixed-cr4 ICE


On Tue, May 03, 2016 at 10:22:02AM -0500, Segher Boessenkool wrote:
> Have you tested if save and restore are correct now?  I.e. not touching
> the fixed ones.

It doesn't matter if we save more cr fields than needed, and I think
the epilogue restores are good.  Restores done by the unwinder won't
be correct except for ELFv2, because on other ABIs we emit a single
save of cr2 to .eh_frame to mean the whole cr is saved.  There's not
much we can do about that.

-- 
Alan Modra
Australia Development Lab, IBM


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]