Remove an old workaround that was kept around for ABI-compatibility on x86-64 between different LLVM versions. This means LLVM r67588 is required if you want to compile for x86-64, otherwise the backend will assert when you try to return e.g. struct { int i; char c; } from a function. (In particular, this is no longer compatible with LLVM 2.5) It also means that any code returning small structs on x86-64 will probably need to be recompiled in order to be linkable to code compiled with this change.

module tangotests.lazy2;

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

void main()
{
    lazy1("hello\n");
}

void lazy1(lazy char[] str)
{
    lazy2(str);
}

void lazy2(lazy char[] msg)
{
    printf("%.*s", msg.length, msg.ptr);
}