IE 2012090402 (something about loop unrolling).

Compiling this code at -O3+ throws the IE at least on i386/win32 and x86-64/win64:

procedure f(constref x: int32); noinline;
begin
end;

var
	i: int32;

begin
	for i := 0 to 9 do f(i);
end.

Found #37475 (closed), but my code is correct haha.