Bug 133820 - new gcc miscompile
Summary: new gcc miscompile
Status: RESOLVED INVALID
Alias: None
Product: SUSE Linux 10.1
Classification: openSUSE
Component: Development (show other bugs)
Version: unspecified
Hardware: Other Other
: P5 - None : Normal (vote)
Target Milestone: ---
Assignee: Michael Matz
QA Contact: E-mail List
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Reported: 2005-11-15 12:33 UTC by Dirk Mueller
Modified: 2005-11-15 12:42 UTC (History)
1 user (show)

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Found By: Other
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testcase (432 bytes, text/plain)
2005-11-15 12:34 UTC, Dirk Mueller 		Details
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Description Dirk Mueller 2005-11-15 12:33:17 UTC 
superlu hangs during build in an endless loop. attaching testcase.
Comment 1 Dirk Mueller 2005-11-15 12:34:00 UTC 
Created attachment 57361 [details]
testcase

compile with -O1 or -O2 to get the assertion, with -O0 to make it pass.
Comment 2 Richard Biener 2005-11-15 12:42:28 UTC 
This is caused by excess precision aka famous gcc PR323.  Compile with -mfpmath=sse -msse2 to get a working testcase.