hphp/runtime/vm/jit/translator-inline.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2014 Facebook, Inc. (http://www.facebook.com)     |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16
  17 #ifndef incl_HPHP_TRANSLATOR_INLINE_H_
  18 #define incl_HPHP_TRANSLATOR_INLINE_H_
  19
  20 #include <boost/noncopyable.hpp>
  21
  22 #include "hphp/runtime/vm/vm-regs.h"
  23 #include "hphp/runtime/vm/jit/translator.h"
  24 #include "hphp/runtime/base/execution-context.h"
  25
  26 /*
  27  * Because of a circular dependence with ExecutionContext, these
  28  * translation-related helpers cannot live in translator.h.
  29  */
  30 namespace HPHP   {
  31
  32 inline ActRec* liveFrame()    { return vmfp(); }
  33 inline const Func* liveFunc() { return liveFrame()->m_func; }
  34 inline const Unit* liveUnit() { return liveFunc()->unit(); }
  35 inline Class* liveClass() { return liveFunc()->cls(); }
  36 inline bool liveResumed() { return liveFrame()->resumed(); }
  37
  38 inline Offset liveSpOff() {
  39   Cell* fp = reinterpret_cast<Cell*>(vmfp());
  40   if (liveFrame()->resumed()) {
  41     fp = (Cell*)Stack::resumableStackBase((ActRec*)fp);
  42   }
  43   return fp - vmsp();
  44 }
  45
  46 namespace jit {
  47
  48 inline int cellsToBytes(int nCells) {
  49   return safe_cast<int32_t>(nCells * ssize_t(sizeof(Cell)));
  50 }
  51
  52 inline int localOffset(int locId) {
  53   return -cellsToBytes(locId + 1);
  54 }
  55
  56 } } // HPHP::jit
  57
  58 #endif