--- Comment #40 from bonzini at gnu dot org 2006-05-30 06:20 ---
We're on par with 4.0, we can close this now. The memory hog bug (27004) is
still open.
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bonzini at gnu dot org changed:
What|Removed |Added
--- Comment #38 from rakdver at gcc dot gnu dot org 2006-05-15 18:25
---
Subject: Bug 26830
Author: rakdver
Date: Mon May 15 18:24:55 2006
New Revision: 113799
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=113799
Log:
PR tree-optimization/26830
* tree-into-ssa.c
--- Comment #39 from rakdver at gcc dot gnu dot org 2006-05-15 21:56
---
Most of the time is now spent in global alloc (30% of wall time) and rtl loop
invariant motion (also about 30%). Almost all the time of rtl lim is in df
analysis.
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rakdver at gcc dot gnu dot org changed:
--- Comment #37 from rakdver at gcc dot gnu dot org 2006-04-14 00:06
---
Created an attachment (id=11262)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11262action=view)
Updated version of the patch
This patch (this time more or less a final version, bootstrapped regtested on
--- Comment #33 from rakdver at gcc dot gnu dot org 2006-04-12 12:20
---
Created an attachment (id=11248)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11248action=view)
Patch to speed up update_ssa
This patch makes update_ssa significantly faster in cases like this (when
--- Comment #34 from dnovillo at redhat dot com 2006-04-12 14:09 ---
Subject: Re: [4.2 Regression] Repeated SSA update
during loop header copying
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On 04/12/06 08:20, rakdver at gcc dot gnu dot org wrote:
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--- Comment #35 from rakdver at atrey dot karlin dot mff dot cuni dot cz
2006-04-12 14:20 ---
Subject: Re: [4.2 Regression] Repeated SSA update during loop header copying
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11248action=view)
Patch to speed up update_ssa
Fails
--- Comment #36 from dnovillo at redhat dot com 2006-04-12 14:23 ---
Subject: Re: [4.2 Regression] Repeated SSA update
during loop header copying
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On 04/12/06 10:20, rakdver at atrey dot karlin dot mff dot cuni dot cz
wrote:
forgot to
--- Comment #30 from bonzini at gnu dot org 2006-04-04 09:20 ---
Zdenek: are you using walk_data-interesting_blocks to not visit PHI nodes on
non-interesting blocks?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26830
--- Comment #31 from rakdver at atrey dot karlin dot mff dot cuni dot cz
2006-04-04 10:20 ---
Subject: Re: [4.2 Regression] Repeated SSA update during loop header copying
Zdenek: are you using walk_data-interesting_blocks to not visit PHI nodes on
non-interesting blocks?
No, I am
--- Comment #32 from bonzini at gnu dot org 2006-04-04 14:29 ---
Zdenek, I'm sure you can construct an example where my simple minded approach
still blows up.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26830
--- Comment #26 from bonzini at gnu dot org 2006-04-03 13:40 ---
compile-time should be fixed on 4.1 (richard, could you confirm). spinning a
separate bug for the salias memory hog problems.
zdenek wanted to investigate manual SSA update of real operands for 4.2
--
bonzini at gnu
--- Comment #27 from rakdver at gcc dot gnu dot org 2006-04-03 14:16
---
With a bit simplified testcase (my computer does not have enough memory for
this one), we spend 30% of compile time in rewrite_update_phi_arguments.
However, only 1.6% (less then 1% of compile time) of the
--- Comment #28 from rguenth at gcc dot gnu dot org 2006-04-03 16:20
---
I confirm, that with -fno-tree-salias -O1 4.1.1 is on-par with -O1 4.0.3. So
all remaining compile-time/memory problems are due to extra virtual operands.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26830
--- Comment #29 from rakdver at gcc dot gnu dot org 2006-04-03 16:31
---
(In reply to comment #27)
With a bit simplified testcase (my computer does not have enough memory for
this one), we spend 30% of compile time in rewrite_update_phi_arguments.
However, only 1.6% (less then 1% of
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