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Re: [PATCH] Make IPA-CP work on aggregates
> On Wed, Nov 07, 2012 at 03:39:15PM +0100, Martin Jambor wrote:
> > another bootstrap finishes. I'm not sure if it would be OK to commit
> > it now, given it is stage3, though. OTOH, I think it would be worth
> > it.
>
> I'm ok with getting that in now from RM POV, but not familiar with the
> code enough to review it. So, if somebody acks it (Honza?), it can be
> added.
>
> > 2012-11-07 Martin Jambor <mjambor@suse.cz>
> >
> > * ipa-prop.c (determine_known_aggregate_parts): Skip writes to
> > different declarations when tracking writes to a declaration.
> >
> > Index: src/gcc/ipa-prop.c
> > ===================================================================
> > --- src.orig/gcc/ipa-prop.c
> > +++ src/gcc/ipa-prop.c
> > @@ -1318,7 +1318,12 @@ determine_known_aggregate_parts (gimple
> > break;
> > }
> > else if (lhs_base != arg_base)
> > - break;
> > + {
> > + if (DECL_P (lhs_base))
> > + continue;
> > + else
> > + break;
> > + }
OK, so the point of patch is to not stop on writes to decls while looking
for value the field is initialized to?
It looks OK.
Thanks,
Honza
> >
> > if (lhs_offset + lhs_size < arg_offset
> > || lhs_offset >= (arg_offset + arg_size))
>
> Jakub