[Issue 13381] One case of array literal that can be stack-allocated

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13381

--- Comment #9 from yebblies <yebbl...@gmail.com> ---
(In reply to bearophile_hugs from comment #8)
> (In reply to yebblies from comment #7)
> 
> > Like I said, once the literal is stack-allocated it's more likely to work.
> 
> OK, another experiment:
> 
> 
> bool foo(in int[] a) {
>     immutable static int[3] aux = [1, 2, 3];
>     return a == aux;
> }
> void main() {}
> 
> 
> __D4test3fooFxAiZb:
>     subl    $20, %esp
>     movl    28(%esp), %eax
>     movl    %eax, 4(%esp)
>     movl    24(%esp), %eax
>     movl    %eax, (%esp)
>     movl    $__D12TypeInfo_Axi6__initZ, 16(%esp)
>     movl    $__D4test3fooFxAiZb3auxyG3i, 12(%esp)
>     movl    $3, 8(%esp)
>     calll   __adEq2
>     testl   %eax, %eax
>     setne   %al
>     addl    $20, %esp
>     ret $8

Which compiler?  I'd say it's worth filing an optimizer enhancement.

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