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From: Jeff Law <law@redhat.com>
To: Segher Boessenkool <segher@kernel.crashing.org>,
	       James Bowman <james.bowman@ftdichip.com>
Cc: Joseph Myers <joseph@codesourcery.com>,
	       "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH, FT32] initial support
Date: Thu, 14 May 2015 18:48:00 -0000	[thread overview]
Message-ID: <5554EA0C.6040309@redhat.com> (raw)
In-Reply-To: <20150514173612.GB26719@gate.crashing.org>

On 05/14/2015 11:36 AM, Segher Boessenkool wrote:
> The alternative that allows move to mem is alt 1, but it thinks the operand
> doesn't match (it is "B" or "W"), it picks alt 0, loop, everyone unhappy.
>
> "B" should match it seems?
>
> (Why does IRA think r56 should be in memory?  Yeah, good question.)
Independent of that, if a reg-reg move generated by LRA (which is really 
a mem->reg or reg->mem) blows up on this target for some reason, then 
that needs to be addressed independently of whether or not IRA might 
have made a bad choice for which pseudo to spill.

Jeff

  reply	other threads:[~2015-05-14 18:31 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-03  5:18 James Bowman
2015-02-03  6:05 ` Andrew Pinski
2015-02-03 14:44   ` Paolo Bonzini
2015-02-04  2:26     ` James Bowman
2015-02-03 22:51 ` Joseph Myers
2015-02-11  3:42   ` James Bowman
2015-02-11 17:04     ` Joseph Myers
2015-02-11 23:58       ` James Bowman
2015-02-12 12:39         ` Joseph Myers
2015-02-16 10:00       ` James Bowman
2015-02-16 18:07         ` Joseph Myers
2015-02-16 22:36           ` James Bowman
2015-03-10 15:49           ` James Bowman
2015-03-19 15:29           ` James Bowman
2015-04-29  7:41             ` Jeff Law
     [not found]               ` <CA9BBF0458F83C4F9051448B941B57D117B98521@glaexch3>
2015-05-11 20:35                 ` Jeff Law
2015-05-12 22:36                   ` James Bowman
2015-05-12 22:54                     ` Jeff Law
2015-05-12 23:10                       ` Mike Stump
2015-05-13  1:07                     ` Segher Boessenkool
2015-05-14  1:58                       ` James Bowman
2015-05-14 11:40                         ` Segher Boessenkool
2015-05-14 12:58                         ` Segher Boessenkool
2015-05-14 13:11                           ` Segher Boessenkool
2015-05-14 15:30                             ` James Bowman
2015-05-14 17:42                               ` Segher Boessenkool
2015-05-14 18:48                                 ` Jeff Law [this message]
2015-05-14 19:51                                   ` Segher Boessenkool
2015-05-14 20:06                                     ` Jeff Law
2015-05-15  3:01                                       ` James Bowman
2015-05-15  6:41                                         ` Jeff Law
2015-05-28 22:35                                         ` Eric Botcazou
2015-06-03 13:56                                           ` Jeff Law
2015-05-14 18:31                               ` Jeff Law

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