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[Octave-bug-tracker] [bug #41831] image 2.2.1 - miscomilation of bwdist.
From: |
Thomas Weber |
Subject: |
[Octave-bug-tracker] [bug #41831] image 2.2.1 - miscomilation of bwdist.cc on i386 |
Date: |
Tue, 11 Mar 2014 08:27:53 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20140205 Firefox/24.0 Iceweasel/24.3.0 |
URL:
<http://savannah.gnu.org/bugs/?41831>
Summary: image 2.2.1 - miscomilation of bwdist.cc on i386
Project: GNU Octave
Submitted by: tweber
Submitted on: Tue 11 Mar 2014 08:27:52 AM GMT
Category: Octave Forge Package
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect Result
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: other
Operating System: GNU/Linux
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Details:
Hi,
we are seeing a miscompilation of bwdist in Debian for the i386 (32bit, x86)
platfor. When compiled with -O2, the test suite hangs in an infinite loop.
Investigation showed that the problem occurs in the quasi-euclidean test case
(and only there). We tried gcc 4.8 and 4.9, both exhibit this problem.
Marking newdist2 as volatile (volatile float newdist2;) fixed this issue as
well. However, I don't see a problem in the code, so this may indeed be a
problem with gcc. Using clang 3.5 does not exhibit this problem, either.
_______________________________________________________
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- [Octave-bug-tracker] [bug #41831] image 2.2.1 - miscomilation of bwdist.cc on i386,
Thomas Weber <=