D perfomance

[Les De Ridder]

On Friday, 24 April 2020 at 22:52:31 UTC, IGotD- wrote:
> On Friday, 24 April 2020 at 19:27:40 UTC, Arine wrote:
>>
>> https://godbolt.org/z/g_euiT
>>
>> D:
>>
>>     int foo(ref int a, ref int b) {
>>         a = 0;
>>         b = 1;
>>         return a;
>>     }
>>
>> int example.foo(ref int, ref int):
>>         movl    $0, (%rsi)
>>         movl    $1, (%rdi)
>>         movl    (%rsi), %eax
>>         retq
>>
>> Rust:
>>
>>     pub fn foo(x: &mut i32, y: &mut i32) -> i32 {
>>         *x = 0;
>>         *y = 1;
>>         *x
>>     }
>>
>> example::foo:
>>         mov     dword ptr [rdi], 0
>>         mov     dword ptr [rsi], 1
>>         xor     eax, eax
>>         ret
>>
>>
>
> Would DIP 1000 enable such optimization possibility in D?

Technically DIP 1021 could.