On Tue, May 1, 2012 at 12:17 AM, Alan Modra wrote:
> * config/rs6000/predicates.md (input_operand): Don't match
> constant pool addresses. Remove label_ref, high and plus from
> match_code list. Remove redundant CONSTANT_P test.
> (splat_input_operand): Similarly upd
On Tue, May 01, 2012 at 01:47:51PM +0930, Alan Modra wrote:
> This revision splits the medium/large code model toc reference after
> reload.
Ping http://gcc.gnu.org/ml/gcc-patches/2012-05/msg6.html
--
Alan Modra
Australia Development Lab, IBM
This revision splits the medium/large code model toc reference after
reload. I expected this to be more difficult, but it turned out
surprisingly easy. Besides creating the rtl that way, and tweaking
toc_relative_expr_p to match, it was just: Move the 'R' constraint
handling out of various movsi
On Wed, Apr 04, 2012 at 10:25:39AM +0100, Richard Sandiford wrote:
> With the loop thing, do you mean that you're seeing too many HIGHs
> being hoisted?
No, nothing as complicated as that. In a lot of cases, any hoisting
of the high part is bad, because the linker nops out the high part and
edits
Alan Modra writes:
> On Tue, Apr 03, 2012 at 07:49:04PM +0100, Richard Sandiford wrote:
>> Alan Modra writes:
>> > Now that we are back in stage1, I'd like to apply
>> > http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00304.html, a change to
>> > toc reference rtl in order to properly specify r2 dep
On Tue, Apr 03, 2012 at 07:49:04PM +0100, Richard Sandiford wrote:
> Alan Modra writes:
> > Now that we are back in stage1, I'd like to apply
> > http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00304.html, a change to
> > toc reference rtl in order to properly specify r2 dependencies. More
> > comme
Alan Modra writes:
> Now that we are back in stage1, I'd like to apply
> http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00304.html, a change to
> toc reference rtl in order to properly specify r2 dependencies. More
> commentary in that url. I'm reposting the patch here since the old
> one no longe
On Tue, Mar 27, 2012 at 3:54 AM, Alan Modra wrote:
> Now that we are back in stage1, I'd like to apply
> http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00304.html, a change to
> toc reference rtl in order to properly specify r2 dependencies. More
> commentary in that url. I'm reposting the patch h
Now that we are back in stage1, I'd like to apply
http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00304.html, a change to
toc reference rtl in order to properly specify r2 dependencies. More
commentary in that url. I'm reposting the patch here since the old
one no longer applies cleanly, and I've ad
On Tue, Sep 06, 2011 at 01:11:26AM +0930, Alan Modra wrote:
> Consequently, Mike's change to split rtl for
> indirect calls sometimes sees the scheduler moving the r2 load in the
> indirect call sequence before a toc reference.
Actually, this isn't correct. Mike's change adding rs6000.c
rs6000_ca
This patch changes the rtl used by rs6000 for a TOC reference address.
The old rtl for -mcmodel=small is:
(plus (reg tocreg) (const (unspec [(symbol_ref sym)] UNSPEC_TOCREL)))
while the old rtl for -mcmodel=medium/large is:
(set (reg rn)
(const (plus (reg r2) (high (const (unspec [(symbol_r
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