DMD 0.177 release

[Frits van Bommel]

Jarrett Billingsley wrote:
<snip>
> Yes, I guess that's true.  But if a simple addition i.e.
> 
> x = a + b;
> 
> Compiled to
> 
> mov _TEMP1, a
> mov _TEMP2, b
> add _TEMP1, _TEMP2
> mov x, _TEMP1
> 
> Instead of
> 
> mov x, a
> add x, b
> 
> It'd still be semantically correct, but would it make sense?

Almost. I could see it generate the following code (with optimizations 
turned off):
   mov _TEMP, a
   add _TEMP, b
   mov x, _TEMP
where a, b and x are memory locations and _TEMP is a register. On x86, 
you can't add the contents of two memory locations, at least one of the 
values needs to be in a register.
With optimizations on, of course, the variables might be stored in 
registers instead of memory. If so, your proposed code would be legal.