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Re: Severe increase in compilation time with 4.3.0 20070615 on powerpc-apple-darwin7

From: "Richard Guenther" <richard dot guenther at gmail dot com>
To: "Dominique Dhumieres" <dominiq at lps dot ens dot fr>
Cc: fortran at gcc dot gnu dot org, gcc at gcc dot gnu dot org
Date: Tue, 19 Jun 2007 16:02:44 +0200
Subject: Re: Severe increase in compilation time with 4.3.0 20070615 on powerpc-apple-darwin7
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References: <20070619134828.EC1A75BBB5@mailhost.lps.ens.fr>

On 6/19/07, Dominique Dhumieres <dominiq@lps.ens.fr> wrote:

On powerpc-apple-darwin7 with 4.3.0 20070615, the compilation time
of the polyhedron test suite increased by 35% compared to the
previous snapshot and by 41% compared to the Apr 13 one:

I did not see this change. What flags are you using?

Richard.

compile execute

06/15 06/08 04/13 06/13 06/08 04/13

ac           6.098     4.169     3.754     141.335   141.271   140.479
aermod     266.403   205.639   196.447      92.756    93.583    90.632
air         14.773    11.925    11.541      40.149    41.533    39.399
capacita     7.332     5.542     5.154     175.615   176.229   177.222
channel      4.289     2.519     2.279      15.664    15.947    15.732
doduc       37.700    28.040    26.679      68.599    68.895    68.195
fatigue     12.843     8.733     8.293      23.766    24.795    23.061
gas_dyn     11.856     8.168     7.598      53.942    53.929    52.100
induct      36.878    23.671    22.445      72.247    73.031    69.283
linpk        2.419     1.979     1.910      33.489    33.844    33.446
mdbx         9.052     7.036     6.716      32.542    32.543    32.985
nf           5.412     3.629     3.357      51.424    51.404    58.494
protein     20.097    13.162    13.063      70.825    70.113    70.896
rnflow      19.812    14.370    14.196      76.936    77.419    76.371
test_fpu    17.098    12.034    11.396      37.336    37.324    37.697
tfft         2.530     1.938     1.779      16.653    16.831    16.581

total 474.592 352.554 336.607 1003.278 1008.691 1002.573

without any noticable effects on the execution time. Does anyone can
explain it (and suggest a fix)?

TIA

Dominique

Follow-Ups:
- Re: Severe increase in compilation time with 4.3.0 20070615 on powerpc-apple-darwin7
  - From: Dominique Dhumieres
- Re: Severe increase in compilation time with 4.3.0 20070615 on powerpc-apple-darwin7
  - From: Dominique Dhumieres

References:
- Severe increase in compilation time with 4.3.0 20070615 on powerpc-apple-darwin7
  - From: Dominique Dhumieres

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