hphp/runtime/vm/jit/opt.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2013 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 #ifndef incl_HPHP_HHIR_OPT_H_
  17 #define incl_HPHP_HHIR_OPT_H_
  18
  19 #include "hphp/runtime/vm/jit/types.h"
  20
  21 namespace HPHP {  namespace JIT {
  22
  23 //////////////////////////////////////////////////////////////////////
  24
  25 class TraceBuilder;
  26 class IRUnit;
  27 class IRInstruction;
  28
  29 //////////////////////////////////////////////////////////////////////
  30
  31 /*
  32  * The main optimization passes, in the order they run.
  33  */
  34 void optimizeRefcounts(IRUnit&) noexcept;
  35 void optimizePredictions(IRUnit&);
  36 void optimizeJumps(IRUnit&);
  37 void eliminateDeadCode(IRUnit&);
  38
  39 /*
  40  * Run all the optimization passes.
  41  */
  42 void optimize(IRUnit& unit, TraceBuilder& builder, TransKind kind);
  43
  44 //////////////////////////////////////////////////////////////////////
  45
  46 }}
  47
  48 #endif