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Re: optimization/10877: [3.3/3.4 regression] miscompilation with-O3 -fPIC on x86
- From: Wolfgang Bangerth <bangerth at ices dot utexas dot edu>
- To: Andrew Pinski <pinskia at physics dot uc dot edu>
- Cc: gcc-bugs at gcc dot gnu dot org, <lloyd at acm dot jhu dot edu>, <gcc-gnats at gcc dot gnu dot org>
- Date: Tue, 20 May 2003 08:47:58 -0500 (CDT)
- Subject: Re: optimization/10877: [3.3/3.4 regression] miscompilation with-O3 -fPIC on x86
> It does not fail for me though on i686-pc-linux-gnu with GCC: 3.4
> 20030517 (experimental).
> Or on i686-unkown-openbsd3.1 with gcc version 3.4 20030519
> (experimental).
That's pretty weird. I can reproduce this with most a 3.4 snapshot from
2003-05-15 as well as a 3.3 snapshot from 2003-05-16. I compared the
assembler output, and instructionwise they are equal, but there are some
additional linkonce things in your output. I don't know enough about this
stuff to tell whether that's relevant.
I'll update now to present HEAD and check+report again once the bootstrap
is done.
W.
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Wolfgang Bangerth email: bangerth@ices.utexas.edu
www: http://www.ices.utexas.edu/~bangerth/