[Issue 8949] [CTFE] Internal Compiler Error

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8949



--- Comment #1 from Don <clugdbug at yahoo.com.au> 2012-11-05 11:49:39 PST ---
Reduced test case:

struct S { int[int] a; }

void baz(ref int[int] x)
{
   auto m = x.dup;
}

int bar()
{
    S s;
    baz(s.a);
    return 1;
}

static assert(bar());
---
Applies to any case where you pass an AA by reference _when it is null_, and
then duplicate it. <sigh> This is the bizarre "magic null" semantics that
happen only with AAs. It causes dozens of special cases.

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