...undef, %"armbug.Rebindable!(TimeZone).Rebindable"* byval undef)
  ret %armbug.SysTime* %.this_arg
}

You get the...

...05A88F70  pop         ebx
05A88F71  pop         eax
05A88F72  ret
05A88F73  mov         eax,dword ptr [___thdtbl (5AADFBCh...

...than zero
ld AX 0;
ret;
L1:
ld AX 1;
ret;

With opcmp:

int opCmp...

...adresal; ret;}
		auto c1 = Clock.currTime();
		point++;
		goto runOP;

	l_CMP:
		asm{ call adresal; ret...

...ss() {
		enum Func = __traits(identifier, fun);
        enum Ret  = ReturnType!(fun).stringof;
		
        alias Args = ParameterTypeTuple!(fun...

...know how to get function name :(
        enum Ret  = ReturnType!fun.stringof;
        alias Args = ParameterTypeTuple!fun...

...loop is unrolled as a series of assignments (ret[0] = a, ret[1] = b …)

...can replace the loop in S with
ret[] = a[];
Which should be even faster.

Also...

...use
"T0[T.length]ret=void;"
instead of
"T0[T.length]ret;"
inside the definition...

...T0[T.length]ret;
	foreach(i,ai;a)
		ret[i]=ai;
	return ret;
}

void main...