dmd codegen improvements

[Joseph Rushton Wakeling via Digitalmars-d]

On Tuesday, 18 August 2015 at 21:58:58 UTC, Walter Bright wrote:
> On 8/18/2015 2:32 PM, Joseph Rushton Wakeling wrote:
>> However true that may be in general, those almost certainly 
>> aren't the reasons
>> why ddmd benchmarks 30% slower than dmd.  I would suspect that 
>> particular speed
>> difference is heavily backend-dependent.
>
> That's exactly why I started this thread. To find out why, and 
> if there are low cost steps we can take to close that gap.

Well, yes, quite.  I was backing up your rationale, even if I 
disagree with your prioritizing these concerns at this stage of 
the dmd => ddmd transition.