Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :) Fixed align N; in asm blocks. Fixed inreg parameter passing on x86 for ref/out params. Removed support for lazy initialization of function local static variables, I have no idea why I ever implemented this, it's not in the D spec, and DMD doesn't support it :P Some of the global variable related changes might cause minor regressions, but they should be easily fixable.

module tangotests.vararg4;

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

struct S
{
    int i;
}

void func(...)
{
    S* sp = cast(S*)_argptr;
    assert(sp.i == 42);
}

void main()
{
    printf("1st:\n");
    {
    S s = S(42);
    func(s);
    }
    printf("ok\n");

    printf("2nd:\n");
    {
    func(S(42));
    }
    printf("ok\n");
}