Optimization level & Purify

While running a program with purify, compiled withCC: Sun C++ 5.8 Patch 121017-01 2005/12/11,had a core dump when optimization level was -xO4 or higher, but not when the optimization level was lower.Also, no core dump at all without the Purify.Can anyone

[298 byte] By [amirs] at [2007-11-26 8:20:34]

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# 1

You probably need to ask Purify tech support.

Generally speaking, Purify makes deep assumptions about code generation details, and those details are not stable. The details can change in a compiler patch. It's possible that an unexpected code sequence caused the Purify instrumentation to fail.

clamage45 at 2007-7-6 21:25:51 >

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# 2

The same problem I observed when the compiler is

CC: Sun C++ 5.8 2005/10/13

and purify

Version 2003a.06.15 FixPack 0214.

Without purify the program is running fine or with purify and optimization level <=O3.

(thread on IBM's rational forum, seems to be related)

http://www-128.ibm.com/developerworks/forums/dw_thread.jsp?message=13865926& ;cat=24&thread=134524&treeDisplayType=threadmode1&forum=344#13865926

mb78 at 2007-7-6 21:25:51 >

# 3

Does the Purify version number 003a.06.15 mean it is from 2003? If so, it is much older than the compiler. As I said originally, Purify depends on details of code generation that change from time to time. You cannot necessarily expect an old version of Purity to work with a new compiler.

Check with Purity tech support.

clamage45 at 2007-7-6 21:25:51 >

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Optimization level & Purify

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