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[Bug middle-end/32779] New: Profile use -> created binary needs more than O(300) longer
- From: "burnus at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Jul 2007 15:18:46 -0000
- Subject: [Bug middle-end/32779] New: Profile use -> created binary needs more than O(300) longer
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
On AMD Athlon64 4800+ using gcc-Version 4.3.0 20070716
(x86_64-unknown-linux-gnu) with aermod of the Polyhedron benchmark suite:
http://www.polyhedron.co.uk/pb05/polyhedron_benchmark_suite.html
gfortran -fprofile-generate -march=opteron -ffast-math -funroll-loops
-ftree-loop-linear -ftree-vectorize -O3 ...
./a.out
gfortran -fprofile-use -march=opteron -ffast-math -funroll-loops
-ftree-loop-linear -ftree-vectorize -O3 ....
./a.out
This was still working on 12 July 2007; thus there must be a regression between
2007-07-12-r126572 and 2007-07-16-r126682.
The problem occurs with:
ac: Segmentation fault (core dumped)
aermod: Endless loop
doduc: Endless loop
--
Summary: Profile use -> created binary needs more than O(300)
longer
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: burnus at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32779