On Wed, Aug 1, 2012 at 9:52 AM, Alan Modra wrote:
> Hi David,
> This is the last of my vendetta against the "o" constraint in the
> rs6000 backend. Remaining are a few places in rs6000.md where the
> operand predicate is offsettable_mem_operand, and one instance in
> spe.md. I believe none of th
Hi David,
This is the last of my vendetta against the "o" constraint in the
rs6000 backend. Remaining are a few places in rs6000.md where the
operand predicate is offsettable_mem_operand, and one instance in
spe.md. I believe none of these can run into mode_dependent_address
causing "insn does no
On Mon, Jul 23, 2012 at 07:30:23PM -0400, David Edelsohn wrote:
> This is okay
Committed revision 189801.
PR target/53914
PR target/54009
* config/rs6000/constraints.md (Y): Use mem_operand_gpr.
* config/rs6000/predicates.md (word_offset_memref_operand): Delete.
On Thu, Jul 19, 2012 at 8:45 PM, Alan Modra wrote:
> This on the other hand works. Please consider the patch amended to
> remove mem_operand_fpr, the 'wY' constraint, and uses thereof replaced
> with "m".
What, exactly, is the current proposed patch? Remove offsettable
address constraint from m
On Fri, Jul 20, 2012 at 12:05:28AM +0930, Alan Modra wrote:
> On Thu, Jul 19, 2012 at 12:34:25PM +0930, Alan Modra wrote:
> > and fixes pr54009.
>
> David, in looking over this today, I realised that this bug isn't
> completely fixed. I stopped gcc emitting an offset of 32768, but that
> isn't en
On Thu, Jul 19, 2012 at 12:34:25PM +0930, Alan Modra wrote:
> and fixes pr54009.
David, in looking over this today, I realised that this bug isn't
completely fixed. I stopped gcc emitting an offset of 32768, but that
isn't enough. lo_sum addresses can't be offset, except when you know
the alignm
Thanks very much Uli for verifying my conclusions about reload,
operand predicates and constraints, and particularly the general
unusability of the "o" constraint.
Re http://gcc.gnu.org/ml/gcc/2012-07/msg00142.html, this patch adds
the missing secondary reload patterns, corrects constraints I got
