hphp/runtime/vm/vm-regs.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present 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 #include "hphp/runtime/vm/vm-regs.h"
  18
  19 #include "hphp/runtime/vm/call-flags.h"
  20 #include "hphp/runtime/vm/resumable.h"
  21 #include "hphp/runtime/vm/jit/fixup.h"
  22
  23 namespace HPHP {
  24
  25 ///////////////////////////////////////////////////////////////////////////////
  26
  27 // Register dirtiness: thread-private.
  28 __thread VMRegState tl_regState = VMRegState::CLEAN;
  29
  30 VMRegAnchor::VMRegAnchor(Mode mode)
  31   : m_old(tl_regState)
  32 {
  33   assert_native_stack_aligned();
  34   jit::syncVMRegs(mode == Soft);
  35 }
  36
  37 ///////////////////////////////////////////////////////////////////////////////
  38
  39 }