Question about GCC / GDC / LDC syntax of inline asm advanced

[Cecil Ward]

On Thursday, 6 July 2023 at 23:11:08 UTC, Cecil Ward wrote:
> In GDC and LDC’s inline asm syntax, the main asm part is 
> separated from the constraints block by the first colon that 
> begins the ‘outputs’ section. My question: how does GDC / LDC / 
> GCC parse the first part, given that there can be umpteen kinds 
> of assembler language. Is the parsing asm dialect-specific so 
> that a full parse finds the first significant colon ?
>
> [...]

I would have put this question in the GDC or LDC sections, but it 
applies to both.