hphp/runtime/vm/jit/align-x64.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2016 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_JIT_ALIGN_X64_H_
  18 #define incl_HPHP_JIT_ALIGN_X64_H_
  19
  20 #include "hphp/runtime/vm/jit/types.h"
  21 #include "hphp/runtime/vm/jit/alignment.h"
  22
  23 #include "hphp/util/data-block.h"
  24
  25 namespace HPHP { namespace jit {
  26
  27 struct CGMeta;
  28
  29 namespace x64 {
  30
  31 ///////////////////////////////////////////////////////////////////////////////
  32
  33 /*
  34  * Mirrors the API of align.h.
  35  */
  36
  37 bool is_aligned(TCA frontier, Alignment alignment);
  38
  39 void align(CodeBlock& cb, CGMeta* meta,
  40            Alignment alignment, AlignContext context);
  41
  42 constexpr size_t cache_line_size() { return 64; }
  43
  44 /*
  45  * Get the AlignInfo for `alignment'; used by relocation.
  46  */
  47 const AlignInfo& alignment_info(Alignment alignment);
  48
  49 ///////////////////////////////////////////////////////////////////////////////
  50
  51 }}}
  52
  53 #endif