Re: optimization/10221: gcc -O9 will introduce wrong asembler?

[Erik Oosterom <erik dot oosterom at chess dot nl>]

Hi Steven,

Thanks for looking to the problem!

The codes I did provided are the output of the compiler. (which is
different)
The source line in the preprocessed source is line 9087, this will be
compiled (wrong).

I shall try to make an simple example.. 

Best Regards,
Erik


steven at gcc dot gnu dot org wrote:
> 
> Synopsis: gcc -O9 will introduce wrong asembler?
> 
> State-Changed-From-To: open->feedback
> State-Changed-By: steven
> State-Changed-When: Wed Mar 26 14:02:34 2003
> State-Changed-Why:
>     Hi,
> 
>     Thanks for the problem report.  Unfortunately, I
>     am unable to reproduce the bug with the code you
>     attached:
> 
>     1) The RELEASE and DEBUG codes you talk about are
>        not in the preprocessed source.
>     2) The code you provided seems to rely on other
>        compilation units, i.e. there are undefined
>        references at link time.
> 
>     Can you produce a smaller test case, or at least one
>     without external references?
> 
>     Oh, and I suppose you see this problem with -O3 as
>     well?  The highest optimization level for GCC is -O3,
>     if you do -On, n>3, nothing extra happens.
> 
>     Greetz
>     Steven
> 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10221

-- 

Met vriendelijke groet,

Erik Oosterom
Chess embedded Technology
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