--- Additional Comments From steven at gcc dot gnu dot org 2005-02-10
23:57 ---
flags: .text size:
-Os 86 bytes
-Os -fno-ivopts 86 bytes
-m32 -Os62 bytes
-m32 -Os -fno-ivopts54 bytes
--
http://gcc.gnu.org/bugzill
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-10
21:09 ---
On PPC, at least (now), the code size increases come from having more than one
IV.
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What|Removed |Added
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--- Additional Comments From andrewhutchinson at cox dot net 2005-02-08
02:12 ---
Bad post ignore
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18219
--- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-02-06
18:47 ---
Subject: Bug 18219
CVSROOT:/cvs/gcc
Module name:gcc
Changes by: [EMAIL PROTECTED] 2005-02-06 18:47:14
Modified files:
gcc: ChangeLog tree-ssa-loop-ivopts.c
Lo
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-21
21:05 ---
(In reply to comment #11)
> This actually looks like a duplicate of PR19038 now.
Actually it is not, the problem is related not doing loop copy header for -Os.
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What|Removed
--- Additional Comments From steven at gcc dot gnu dot org 2005-01-21
14:04 ---
This actually looks like a duplicate of PR19038 now.
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What|Removed |Added
BugsThisDepends
--- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni
dot cz 2005-01-21 08:18 ---
Subject: Re: [4.0 Regression] gcc-4.0.0 bloats code by 31%
> --- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-21
> 07:57 ---
> I think one of the problems
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-21
07:57 ---
I think one of the problems is that ivopts causes out of ssa not to Coalesce
two SSA_NAME:
Before out of ssa:
D.1127_16 = *ivtmp.8_9;
D.1128_21 = *ivtmp.12_30;
D.1129_22 = D.1127_16 - D.1128_21;
*iv
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What|Removed |Added
OtherBugsDependingO||18693
nThis||
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18219
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-05 14:34
---
Hmm, for -O2 on PPC, we are not using the branch on count register instruction if we
do that, -O2 will
be smaller than -Os.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18219
--- Additional Comments From giovannibajo at libero dot it 2004-11-05 10:34
---
Subject: Re: [4.0 Regression] gcc-4.0.0 bloats code by 31%
uros at kss-loka dot si wrote:
> It looks that this PR is related to PR17647. Should we
> merge them together?
We are still waiting for Zdenek's
--- Additional Comments From uros at kss-loka dot si 2004-11-05 09:10 ---
It looks that this PR is related to PR17647. Should we merge them together?
Uros.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18219
--- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni dot cz
2004-11-01 14:57 ---
Subject: Re: [4.0 Regression] gcc-4.0.0 bloats code by 31%
> Zdenek, thanks for the patch!
> What is the generated code like after your patch?
It seems that the 3.4 code is still smal
--- Additional Comments From giovannibajo at libero dot it 2004-11-01 14:40
---
Zdenek, thanks for the patch!
What is the generated code like after your patch?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18219
--- Additional Comments From rakdver at gcc dot gnu dot org 2004-11-01 13:21
---
Unfortunately I do not think this will help much in other related PRs.
Patch:
http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00025.html
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What|Removed |Added
---
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What|Removed |Added
AssignedTo|unassigned at gcc dot gnu |rakdver at gcc dot gnu dot
|dot org |org
Status|NEW
--- Additional Comments From giovannibajo at libero dot it 2004-10-29 15:43
---
Zdenek, this is another PR about ivopts and -Os. The test case is very very
simple, so if you could give a look it would be great.
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What|Removed |Added
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-29 14:30
---
Confirmed, on PPC, IV-OPTS causes a code bloat also, 7 new instructions but note 4.0.0
with IV-OPTS
on PPC is only one instruction more than 3.3. (on PPC every instruction is the same
length).
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What|Removed |Added
OtherBugsDependingO||17549
nThis||
Component|c |tree-op
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