AW: [avr-gcc-list] "so-called-bug" global register variable is broken

[Haase Bjoern (PT-BEU/MKP5) *]

Hi,

simply a brief remark:

In my opinion we do not talk about a bug, but we are talking about a specific 
problem that cannot
be solved easily by standard GCC. 
In my opinion there is no justification to write a "bug" report. Eventually, we 
could make the
documentation a bit more explicit about this point.

Yours,

Björn


-----Ursprüngliche Nachricht-----
Von: address@hidden
[mailto:address@hidden Auftrag von E. Weddington
Gesendet: Donnerstag, 2. Dezember 2004 16:10
An: address@hidden; Klaus Rudolph
Betreff: Re: [avr-gcc-list] avr-gcc bug: global register variable is
broken


On 1 Dec 2004 at 15:48, Klaus Rudolph wrote:

> Hi all,
> 
> it is impossible to define a global register variable in avr-gcc.
> The register is used by the compiler on some places and it is really not
> preserved.
> 
> 
<snip> 
> Any idea for a workaround? I need some register vars for interrupt handler
> :-(
> 
> Is there allready a patch available or is this maybe fixed in current CVS
> head of release 4.0 in gcc sources?
> 

AFAIK, there's nothing new in the avr port itself in this area.

If this is a bug, then *please* submit a GCC bug report on this. That way it 
can be verified (by 
other GCC developers), tracked, and other GCC developers can be aware of this 
issue.

Thanks!
Eric

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