ldc2: Current State?

[Jordi]

On 12/08/2010 06:13 AM, Iain Buclaw wrote:
> == Quote from Robert Clipsham (robert at octarineparrot.com)'s article
>> On 06/12/10 18:27, dsimcha wrote:
>>> Apparently LDC2 is being actively worked on
>>> (http://bitbucket.org/prokhin_alexey/ldc2/) and is up to date with the latest
>>> D2 reference compiler.  I have not been able to get it to actually work,
>>> though I haven't tried very hard and don't remember the details of why it
>>> didn't work.  Is LDC2 in a mature enough state that people should actually try
>>> to use it?  (I know the main LDC page says it isn't, but that seems rather
>>> outdated, since it hasn't been updated in ages.)  Has anyone else used it at
>>> all successfully yet?
>> Without having used it, I can guarantee it is not - I was the last
>> person to work on it while it was in the main ldc branch, and have been
>> following its development in the new repository - there simply hasn't
>> been enough (commit wise) for it to be workable yet. This said, it is
>> possible that it's on par with D1, I haven't looked in enough detail to
>> see if that is the case though.
>> If you're looking for a non-dmd D2 compiler, GDC is currently the
>> closest, I'm not sure what its current status is (I'm sure Iain will
>> know) - I'm led to believe it can already compile a nice chunk of (its
>> own branch of) phobos though.
>
> Phobos2 in GDC is mostly a mirror of phobos hosted on dsource, with some GDC-specific changes here and there to emphasize on the
> different implementation details ie: most functions in core.stdc.math are all aliases to GCC builtins. A recent changeset made it
> possible for all GCC builtins to be CTFE'able now too, so as well as enum FOO = sqrt(2) now working (thus meeting an expected
> requirement), you can go a little more wild and throw other functions into the mix: enum BAR = lround(sqrt(2)).
> To note some of the bad things. Varargs are still a problem. And though InlineAsm is getting there, with most problems with codegen
> pretty much sorted, we still suck at outputting labels. As far as I'm aware, Phobos will be 64bit-friendly in time for the 2.051
> roll out. But that is no good when other architectures still bare the brunt of things. :~)
>
> Regards

GDC compiles 90% of my d2 project already. I also tried ldc2 and manage 
to compile it(the ldc compiler, not my project). However the first easy 
tests i made seemed to be looking for tango, which i don't use and gave 
up for now.

I am looking forward to make some benchmark app of the kind of work i 
do, and set up a "compiler race" where new versions of the compilers are 
tested and banchmarked in a "continuous integration" way.

But not even dmd compiles my project in release mode yet ...

j.