-Original Message-
From: Jeff Law [mailto:l...@redhat.com]
Sent: Wednesday, October 17, 2012 1:02 AM
To: Bin Cheng
Cc: 'Steven Bosscher'; gcc-patches@gcc.gnu.org
Subject: Re: [PATCH RFA] Implement register pressure directed hoist pass
On 10/16/2012 01:44 AM, Bin Cheng wrote
: New test.
-Original Message-
From: gcc-patches-ow...@gcc.gnu.org [mailto:gcc-patches-ow...@gcc.gnu.org]
On
Behalf Of Bin Cheng
Sent: Friday, October 12, 2012 4:09 PM
To: 'Steven Bosscher'
Cc: Jeff Law; gcc-patches@gcc.gnu.org
Subject: RE: [PATCH RFA] Implement register pressure
On 10/16/2012 01:44 AM, Bin Cheng wrote:
Hi Steven, Jeff,
I found a flaw in original patch, which results in inaccurate register
pressure.
Here comes the updated patches, improving code size a little bit on
Thumb2/powerpc comparing to original patches.
Please review.
Thanks
2012-10-16 Bin
Hi,
This is the updated patches split from original one according to Steven's
suggestion. Also fixed spelling errors.
Apart from this, I also implemented a draft patch simulating register
pressure accurately during hoisting, unfortunately the size data isn't
better than this patch. If it's right,
: Tuesday, October 02, 2012 8:58 PM
To: Bin Cheng
Cc: 'Steven Bosscher'; gcc-patches@gcc.gnu.org
Subject: Re: [PATCH RFA] Implement register pressure directed hoist pass
On 09/29/2012 12:37 AM, Bin Cheng wrote:
Hi Steven,
This is the updated patch according to your comments. Please review.
I
On Thu, Oct 11, 2012 at 8:50 AM, Bin Cheng wrote:
+ /* x+y won't be hoisted without defaultly enabled -fira-hoist-pressure,
defaulty comment.
+ kinds of code motion(including code hoisting) in a unified way.
needs space between motion and (.
+ flow graph, given if it can reach BB
-Original Message-
From: Steven Bosscher [mailto:stevenb@gmail.com]
Sent: Friday, October 12, 2012 7:04 AM
To: Bin Cheng
Cc: Jeff Law; gcc-patches@gcc.gnu.org
Subject: Re: [PATCH RFA] Implement register pressure directed hoist pass
On Thu, Oct 11, 2012 at 8:50 AM, Bin Cheng
Hi Steven,
Thanks for the comments and sorry for the delay with this message.
-Original Message-
Hello,
Thanks for the update. The first look wasn't a very thorough review, so I
have
more comments now. Sorry for that, I should have taken the time for this
the
first time round...
Hi Jeff,
Thanks for reviewing and sorry for this delayed message.
+ /* Only decrease distance if bb has high register pressure or
EXPR
+is const expr, otherwise EXPR can be hoisted through bb without
+cost. */
?!? This comment makes no sense to me. To accurately know how
On 09/29/2012 12:37 AM, Bin Cheng wrote:
Hi Steven,
This is the updated patch according to your comments. Please review.
I also re-collected code size data and found it is improved by about 0.24%
for mips, which is better than previous data. I believe this should be
caused by recent changes in
On Sat, Sep 29, 2012 at 8:37 AM, Bin Cheng bin.ch...@arm.com wrote:
This is the updated patch according to your comments. Please review.
I also re-collected code size data and found it is improved by about 0.24%
for mips, which is better than previous data. I believe this should be
caused by
-Original Message-
From: Steven Bosscher [mailto:stevenb@gmail.com]
Sent: Friday, September 28, 2012 4:29 PM
To: Bin Cheng
Cc: gcc-patches@gcc.gnu.org; Eric Botcazou; Richard Sandiford;
vmaka...@redhat.com
Subject: Re: [PATCH RFA] Implement register pressure directed hoist pass
Hi,
This patch implements register pressure directed hoist pass. Basically it
calculates register pressure for each basic block and use that information
to determine the hoist distance of each candidate expression. The register
pressure is calculated by re-using IRA utilities.
I measured the
On Fri, Sep 28, 2012 at 9:18 AM, Bin Cheng bin.ch...@arm.com wrote:
(get_regno_pressure_class, get_pressure_class_and_nregs)
Broken long lines in a ChangeLog entry end with a ,.
(change_pressure, mark_regno_live, mark_regno_death, mark_reg_death)
(mark_reg_store,
Thanks for comments.
-Original Message-
From: Steven Bosscher [mailto:stevenb@gmail.com]
Sent: Friday, September 28, 2012 4:29 PM
To: Bin Cheng
Cc: gcc-patches@gcc.gnu.org; Eric Botcazou; Richard Sandiford;
vmaka...@redhat.com
Subject: Re: [PATCH RFA] Implement register
On 09/28/2012 09:29 AM, Steven Bosscher wrote:
On Fri, Sep 28, 2012 at 9:18 AM, Bin Cheng bin.ch...@arm.com wrote:
(get_regno_pressure_class, get_pressure_class_and_nregs)
Broken long lines in a ChangeLog entry end with a ,.
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