Make "`aa[key]`" use the same runtime call as "`key in aa`". The runtime calls these were using were different, but with equivalent definitions. With `ldc -O3`, the following functions now all compile to the exact same code: {{{ int[int] y; void foo(int x) { if (x in y) { auto z = x in y; sink(*z); } } void bar(int x) { if (x in y) { sink(y[x]); } } void baz(int x) { if (auto p = x in y) { sink(*p); } } }}}

module tangotests.aa1_1;

extern(C) int printf(char*,...);

void main()
{
    int[int] map;
    map[1] = 1;
    map[10] = 1;
    map[11] = 11;
    map[14] = 41;
    map[21] = 12;
    map[23] = 32;
    map[32] = 23;
    map[201] = 102;
    foreach(k,v; map)
    {
        printf("%d:%d ", k,v);
    }
    printf("\n");
}