GCC 3.4 Ada compiler quality?

GCC 3.4 Ada compiler quality?

[Brian Catlin]

I know it was just released, but does anyone have a good feel for the quality of 
the new GCC 3.4 Ada compiler?  Is it worth upgrading from 3.15P, or should I 
wait until 3.5?

 -Brian

Re: GCC 3.4 Ada compiler quality?

[Adrian Knoth]

Brian Catlin <BrianC@sannas.org.bad> wrote:

> the new GCC 3.4 Ada compiler?  Is it worth upgrading from 3.15P, or should I 
> wait until 3.5?

I'd been using the 3.4-cvs for a while. Six months ago it was fine and did
the job. I think is is worth upgrading, but I don't know why ;) IIRC they
changed a lot in procedure-calls. Instead of pushing the parameters to
the stack and popping them afterwards they're calculating the variable's
address and do a normal subroutine-call afterwards. But consider this
as highly iirc, I don't even know if it's true at all ;)

Someone contributed graph-coloring-optimization-code, I guess it's for
automatically deciding which variables to use as register-vars (faster
than RAM-vars). But I'm not sure ;)

Besides this a bugtracking-system exists and I'd guess the Ada-component
itself was improved due to userfeedback. Dunno.

-- 
mail: adi@thur.de  	http://adi.thur.de	PGP: v2-key via keyserver

Q: Was passiert, wenn eine deutsche Blondine nach �sterreich auswandert?
A: In beiden L�ndern steigt der durchschnittliche IQ. (aus de.talk.jokes)

Re: GCC 3.4 Ada compiler quality?

[Georg Bauhaus]

Brian Catlin <BrianC@sannas.org.bad> wrote:
: I know it was just released, but does anyone have a good feel for the quality of 
: the new GCC 3.4 Ada compiler?  Is it worth upgrading from 3.15P, or should I 
: wait until 3.5?

It has solved some problems for me having to do with private
children, and with generic formals in certain circumstances.

I find -gnatwa quite useful

The project file support is better (though this might affect
portabiliy).

Re: GCC 3.4 Ada compiler quality?

[Duncan Sands]

On Thursday 22 April 2004 13:57, Georg Bauhaus wrote:
> Brian Catlin <BrianC@sannas.org.bad> wrote:
> : I know it was just released, but does anyone have a good feel for the
> : quality of the new GCC 3.4 Ada compiler?  Is it worth upgrading from
> : 3.15P, or should I wait until 3.5?
>
> It has solved some problems for me having to do with private
> children, and with generic formals in certain circumstances.
>
> I find -gnatwa quite useful
>
> The project file support is better (though this might affect
> portabiliy).

I have had problems with the code generated when using -gnatn,
and sometimes when just using -O2 (mysterious segmentation
faults, exception handling failing etc).  I haven't noticed any regressions
when compiling without optimisation, compared to gnat 3.15p.

All the best,

Duncan.