Edwin Smith
51 linhas
1.9 KiB
C++
51 linhas
1.9 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_HPHP_JIT_LAYOUT_H_
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#define incl_HPHP_JIT_LAYOUT_H_
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#include "hphp/runtime/base/smart_containers.h"
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#include "hphp/runtime/vm/jit/ir.h"
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#include "hphp/runtime/vm/jit/block.h"
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namespace HPHP { namespace JIT {
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//////////////////////////////////////////////////////////////////////
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/*
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* Information about where to position the blocks in a trace.
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*
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* The blocks are listed in the order they should be positioned, with
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* astubsIt pointing at the place we've split the blocks between a and
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* astubs.
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*/
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struct LayoutInfo {
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smart::vector<Block*> blocks;
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smart::vector<Block*>::iterator astubsIt;
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};
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/*
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* Determine the order that blocks should be emitted for codegen. The
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* goal is to minimize branching and put related blocks close to each
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* other.
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*/
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LayoutInfo layoutBlocks(IRTrace*, const IRFactory&);
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//////////////////////////////////////////////////////////////////////
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}}
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#endif
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