paranoia on PowerPC

Tim Prince n8tm@aol.com
Tue Jul 24 02:00:00 GMT 2007


joel.sherrill@oarcorp.com wrote:
> Hi,
> 
> In analyzing the output of paranoia, Eric Norum
> and I have noticed that when compiled at
> default optimization levels, the results
> are reported to have a flaw.  When compiled
> with no optimization, paranoia reports no flaws.
> 
> I tried this with RTEMS running on psim using
> gcc 4.2.1.  RTEMS uses newlib.
> 
> Eric duplicated the problem on a PowerPC Mac
> using gcc 4.0.1.
> We believe this indicates an issue introduced
> by gcc optimization.
> 
> Given the age of paranoia (the version included
> with RTEMS is from Cygnus circa 1993), does this
> sound familiar or is this a new issue?
> 

Should we know which version of Paranoia this is?  or guess which flaw 
is reported? I'd be happy to check Paranoia on a platform to which I 
have access, with a more interesting gcc version, but you've given 
little to go on.



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