Re: [LinuxBIOS] romcc - Internal compiler error: Cannot find block dominated ....

[Doug Bell]

Beyond that, there was one version in which I simply
switched the order of declaration of variables to make
it compile:

// unsigned char row,col; // broken
unsigned char col,row; // works

In another test run........
//if ( total < c) total+=div; // failed

if ( total < c) subtotal+=div; // was ok
total=subtotal;

Ron / Eric  - What is the best way to proceed on this?
What info would you want? I don't think I'm doing
anything bizarre, maybe 4 chars declared, no deep
levels of functions.

--- Doug Bell  wrote:
> I had one version of code where it failed on a line
> like:
> if (speed==100) speed=0;
>
> but problem disappeared if I did :
> if (speed==100) speed2=0;
>
> This may have been a factor in the first reporting
> of
> the problem as well.
>
> -dB
>
> --- Doug Bell  wrote:
> > It seems to not be related to register allocation,
> > how
> > many layers of functions,  or code size, but to
> > nested
> > if statements or variations thereof, e.g. if (
> > (condition a) && ( condition b) ) ....
> >
> > /home/dbell # uname -a
> > Linux Doug 2.6.9 #1 Tue Jan 11 17:26:41 UTC 2005
> > i686
> > Intel(R) Pentium(R) 4 CPU 1500MHz GenuineIntel
> > GNU/Linux
> >
> > Target is via epia-sp, under development but close
> > to
> > an alpha release with some open items.
> >
> > BTW, is there any documentation regarding what
> > limitations romcc has (e.g. multidimensional
>
> arrays
> > not allowed, etc )?
> >
> > Thanks, Doug
> >
> > --- ron minnich  wrote:
> > > On 9/26/05, Doug Bell  wrote:
> > > > 0x8360d58 phi Internal compiler error: Cannot
> > > > find block dominated by 0x82ba9a8
> > > >
> > > > Any ideas on workarounds / fixes here? Is am I
> > >
> > > running
> > > > out of registers or some other problem?
> > >
> > > can you tell us more about the environment,
> > > uname -a
> > > distro, and linuxbios target?
> > >
> > > ron
> > > >
> > >
> > > LinuxBIOS mailing list
> > > [e-mail]
>
> http://www.openbios.org/mailman/listinfo/linuxbios
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