hphp/runtime/vm/jit/irgen-control.h

   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 #pragma once
  17
  18 #include "hphp/runtime/vm/hhbc.h"
  19 #include "hphp/runtime/vm/srckey.h"
  20
  21 namespace HPHP::jit {
  22
  23 struct Block;
  24 struct SSATmp;
  25
  26 namespace irgen {
  27
  28 struct IRGS;
  29
  30 //////////////////////////////////////////////////////////////////////
  31
  32 /*
  33  * Returns an IR block corresponding to the given bytecode offset. If the block
  34  * starts with a DefLabel expecting a StkPtr, this function will return an
  35  * intermediate block that passes the current sp.
  36  */
  37 Block* getBlock(IRGS& env, Offset offset);
  38 Block* getBlock(IRGS& env, SrcKey sk);
  39
  40 /*
  41  * Helpers for unconditional and conditional jumps.
  42  */
  43 void surpriseCheck(IRGS&);
  44 void surpriseCheck(IRGS&, Offset);
  45 void surpriseCheckWithTarget(IRGS&, Offset);
  46 void jmpImpl(IRGS&, Offset);
  47 void jmpImpl(IRGS&, SrcKey);
  48 void implCondJmp(IRGS&, Offset taken, bool negate, SSATmp*);
  49
  50 //////////////////////////////////////////////////////////////////////
  51
  52 }}
  53