Technical Solutions

Why do I receive incorrect results when using Sun CC 5.8 with the -xO3 flag?

Date Last Modified: Friday, June 26, 2009

Solution ID:		1-431HK0
Product:		MATLAB
Reported in Release:		R2007a
Platform:		Solaris
Operating System:		Solaris Any

Subject:

Why do I receive incorrect results when using Sun CC 5.8 with the -xO3 flag?

Problem Description:

I am generating code from Simulink and related products, or interfacing with C code. I am using Sun Studio 11 C++ 5.8 Patch 121017-02 2006/04/19 or earlier on 64-bit Solaris.

Solution:

This bug has been fixed in Release 2007b (R2007b). For previous product releases, read below for any possible workarounds:

There is a bug in the Sun Studio 11 C++ 5.8 compiler that can, in some instances, cause incorrect results.

Sun has released patch 120760-12 to address the issue. Contact Sun to update your compiler, or see the patch announcement here:
http://sunsolve.sun.com/search/document.do?assetkey=1-21-120760

Customers can find more information in Sun BugID 6503610.

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