[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 #2 from bearophile_hugs at eml.cc ---
Given this code:

void foo(uint[] a) @nogc {
    if (a == [1, 2]) {}
}


One way to rewrite it is (the immutable can't be always used):


void foo(uint[] a) @nogc {
    immutable static uint[2] __foo_aux0 == [1, 2];
    if (a == __foo_aux0) {}
}


Or more efficient:

void foo(uint[] a) @nogc {
    if (a.length == 2 && a[0] == 1 && a[1] == 2) {}
}

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