On 09/04/2015 09:02 PM, David Miller wrote:
From: David Miller
Date: Fri, 04 Sep 2015 11:27:31 -0700 (PDT)
From: Vladimir Makarov
Date: Fri, 4 Sep 2015 10:00:54 -0400
I don't think we should add a new LRA code calling process_address
before adding insns for further processing. LRA just nee
From: David Miller
Date: Fri, 04 Sep 2015 11:27:31 -0700 (PDT)
> From: Vladimir Makarov
> Date: Fri, 4 Sep 2015 10:00:54 -0400
>
>> I don't think we should add a new LRA code calling process_address
>> before adding insns for further processing. LRA just needs to get
>> operands from insns to
From: David Miller
Date: Fri, 04 Sep 2015 11:30:26 -0700 (PDT)
> From: Segher Boessenkool
> Date: Fri, 4 Sep 2015 06:46:04 -0500
>
>> On Thu, Sep 03, 2015 at 11:19:43PM -0700, David Miller wrote:
>>> The paradoxical subreg restriction in general_operand() is only
>>> enforced when reload_comple
From: Segher Boessenkool
Date: Fri, 4 Sep 2015 06:46:04 -0500
> On Thu, Sep 03, 2015 at 11:19:43PM -0700, David Miller wrote:
>> The paradoxical subreg restriction in general_operand() is only
>> enforced when reload_completed is true, which will not be the
>> case while LRA is working.
>
> This
From: Vladimir Makarov
Date: Fri, 4 Sep 2015 10:00:54 -0400
> LRA porting frequently needs changing in constraints.md, .c,
> and .md files.
I did make such changes, trust me :-)
First obstacle was that, unlike reload, LRA is very strict about
register constraints. If a constraint doesn't evalu
On 09/03/2015 06:33 PM, David Miller wrote:
I'm working on converting sparc to LRA, and thanks probably to the
work the powerpc folks did this is going much better than when I
last tried this.
Thanks for working on this, David.
The first major stumbling block I've run into is when LRA forces
a
On Thu, Sep 03, 2015 at 11:19:43PM -0700, David Miller wrote:
> From: Segher Boessenkool
> Date: Thu, 3 Sep 2015 20:26:51 -0500
>
> > On Thu, Sep 03, 2015 at 03:33:56PM -0700, David Miller wrote:
> >> (insn 18631 1099 1100 14 (set (reg:SI 13423)
> >> (subreg:SI (mem/c:QI (plus:SI (reg/f:S
From: Segher Boessenkool
Date: Thu, 3 Sep 2015 20:26:51 -0500
> On Thu, Sep 03, 2015 at 03:33:56PM -0700, David Miller wrote:
>> (insn 18631 1099 1100 14 (set (reg:SI 13423)
>> (subreg:SI (mem/c:QI (plus:SI (reg/f:SI 101 %sfp)
>> (const_int -14269 [0xc843])
On Thu, Sep 03, 2015 at 03:33:56PM -0700, David Miller wrote:
> (insn 18631 1099 1100 14 (set (reg:SI 13423)
> (subreg:SI (mem/c:QI (plus:SI (reg/f:SI 101 %sfp)
> (const_int -14269 [0xc843])) [0 %sfp+-14269
> S1 A8]) 0)) x.c:104 63 {*movsi_insn}
> (expr
