Compilation strategy

[Iain Buclaw]

On 17 December 2012 09:29, Walter Bright <newshound2 at digitalmars.com> wrote:

> On 12/17/2012 1:15 AM, Paulo Pinto wrote:
>
>> http://www.hopperapp.com/
>>
>> I really like the way it generates pseudo-code and basic block graphs out
>> of
>> instruction sequences.
>>
>
> I looked at their examples. Sorry, that's just step one of reverse
> engineering an object file. It's a loooooong way from turning it into
> source code.
>
> For example, consider an optimizer that puts variables int x, class c, and
> pointer p all in register EBX. Figure that one out programmatically. Or the
> result of a CTFE calculation. Or a template after it's been expanded and
> inlined.
>


Right, there is practically zero chance of being able to come up with 100%
identical D code from an object dump / assembly code.  Possibly with
exception to a few *very* simple cases (hello world!).  However it looks
like you might just be able to decode it into a bastardised C version.  I
can't see that hopperapp to be very practical beyond small stuff though...


Regards,
-- 
Iain Buclaw

*(p < e ? p++ : p) = (c & 0x0f) + '0';
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puremagic.com/pipermail/digitalmars-d/attachments/20121217/04d64a9b/attachment.html>