Bug 41195 - floating point optimization
Summary: floating point optimization
Status: RESOLVED DUPLICATE of bug 323
Alias: None
Product: gcc
Classification: Unclassified
Component: c++ (show other bugs)
Version: 4.2.1
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
Depends on:
Reported: 2009-08-31 03:52 UTC by Vikas
Modified: 2009-09-20 21:28 UTC (History)
66 users (show)

See Also:
Host: RHAS 5
Known to work:
Known to fail:
Last reconfirmed:

test case (2.09 KB, application/zip)
2009-08-31 03:55 UTC, Vikas

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Description Vikas 2009-08-31 03:52:05 UTC
A simple sequence of floating point calculations gives different results on optimized builds and unoptimized builds. I have seen some bug reports, but this one is different as the error is reproduced only when the floating point calculation in question is called from a library. If i create a simple main method with the calculation in question, the error is not reproducible. I have a simple test case, how can i send it?
Comment 1 Vikas 2009-08-31 03:55:35 UTC
Created attachment 18453 [details]
test case
Comment 2 Andrew Pinski 2009-08-31 06:21:13 UTC
I think this is a duplicate of bug 323.  What target are you using?
Comment 3 Vikas.Mehta@roguewave.com 2009-09-01 15:22:23 UTC
Subject: RE:  floating point optimization

Thanks for looking into this issue. 
Target: x86_64-redhat-linux

-----Original Message-----
From: pinskia at gcc dot gnu dot org [mailto:gcc-bugzilla@gcc.gnu.org] 
Sent: Monday, August 31, 2009 12:21 AM
To: Vikas Mehta
Subject: [Bug c++/41195] floating point optimization

------- Comment #2 from pinskia at gcc dot gnu dot org  2009-08-31 06:21
I think this is a duplicate of bug 323.  What target are you using?

Comment 4 Andrew Pinski 2009-09-20 21:28:33 UTC
Yes it is a dup of 323.  Since really the target is 32bits :).

*** This bug has been marked as a duplicate of 323 ***