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.

gen/irstate.h

@@ -3,6 +3,7 @@
 
 #include <vector>
 #include <list>
+#include <sstream>
 
 #include "root.h"
 #include "aggregate.h"
@@ -200,10 +201,12 @@ struct IRState
 
     // for inline asm
     IRAsmBlock* asmBlock;
+    std::ostringstream nakedAsm;
 
-    // dwarf dbg stuff
     // 'used' array solely for keeping a reference to globals
     std::vector<LLConstant*> usedArray;
+
+    // dwarf dbg stuff
     LLGlobalVariable* dwarfCUs;
     LLGlobalVariable* dwarfSPs;
     LLGlobalVariable* dwarfGVs;