Re: [Patch, xtensa] Add LOCAL_REGNO to the xtensa backend.

On Tue, Jan 14, 2014 at 7:14 AM, Felix Yang wrote: > Hi Sterling, > > The xtensa backend uses register windows, and we need to define > LOCAL_REGNO for it. Hi Felix, How does this change the produced code? In particular, please identify a problem this patch is solving. I know that the docume

[Patch, xtensa] Add LOCAL_REGNO to the xtensa backend.

Hi Sterling, The xtensa backend uses register windows, and we need to define LOCAL_REGNO for it. The dataflow may not be accurate with this macro. This patch passed the cases in testsuite/gcc.c-torture/execute dir. Please apply it if OK for trunk. Thanks. Index: gcc/ChangeLog