Inter-compiler portability of asm between gdc and ldc2 (and dmd)

[Iain Buclaw]

On Saturday, 3 October 2020 at 22:14:02 UTC, Ola Fosheim Grøstad 
wrote:
> On Saturday, 3 October 2020 at 21:52:10 UTC, Iain Buclaw wrote:
>> This question of why dmd-style iasm isn't done has already 
>> been answered a little earlier today.  If you think you can 
>> implement all supported targets (that is about 50 distinct 
>> CPUs) in a weekend, be my guest.  You'll soon learn every 
>> reason why it is unfeasible, impractical, and in many cases 
>> not possible within the llvm and gcc compiler frameworks.
>
> The parsing is a drop in the ocean when supporting a new CPU. 
> It is a matter of infrastucure for it in the code base and 
> culture.  Syntax is not a big challenge.

And the infrastructure present is zero.  The compiler is a 
producer of assembly, not a consumer.  It doesn't understand 
assembly constructs, and all the better if it remains that way.