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address of labels in the symbol table

From: Andreas Wortmann <andreas dot wortmann at ohb-system dot de>
To: gcc-help at gcc dot gnu dot org
Date: Wed, 30 Nov 2011 11:31:33 +0100 (CET)
Subject: address of labels in the symbol table

Hi, 

I'm using gcc 4.2.1 for the SPARC V8 architecture and I want to access the address of labels placed in the c code from the symbol table. 
This is working fine if I do not optimize (-O0) or optimize with -O1. 
But when optimizing with -O2 or -Os the unused labels (event though they are still listed in the symbol table) have a wrong address.
What is happening here ?

Thanks,
Andreas

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