Time to move std.experimental.checkedint to std.checkedint ?

[Andrei Alexandrescu]

On 3/31/21 12:59 AM, Walter Bright wrote:
> On 3/30/2021 9:08 PM, Andrei Alexandrescu wrote:
>> Not much to write home about. The jumps scale linearly with the number 
>> of primitive operations:
>>
>> https://godbolt.org/z/r3sj1T4hc
>>
>> That's not going to be a speed demon.
> 
> The ldc:
>          mov     eax, edi
>          imul    eax, eax
>          add     eax, edi    *
>          add     eax, 1      *
>      ret
> 
> * should be:
> 
>      lea    eax,1[eax + edi]
> 
> Let's try dmd -O:
> 
> __D3lea6squareFiZi:
>      mov    EDX,EAX
>      imul    EAX,EAX
>      lea    EAX,1[EAX][EDX]
>      ret
> 
> Woo-hoo!

Yah, actually gdc uses lea as well: https://godbolt.org/z/Gb6416EKe