56a486c322
- this avoids using relative include paths which are forbidden by the style guide - makes the code more readable since it's clear which header is meant - allows for starting to use checkdeps BUG=none R=jkummerow@chromium.org, danno@chromium.org LOG=n Review URL: https://codereview.chromium.org/304153016 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_HYDROGEN_OSR_H_
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#define V8_HYDROGEN_OSR_H_
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#include "src/hydrogen.h"
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#include "src/ast.h"
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#include "src/zone.h"
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namespace v8 {
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namespace internal {
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// Responsible for building graph parts related to OSR and otherwise
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// setting up the graph to do an OSR compile.
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class HOsrBuilder : public ZoneObject {
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public:
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explicit HOsrBuilder(HOptimizedGraphBuilder* builder)
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: unoptimized_frame_slots_(0),
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builder_(builder),
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osr_entry_(NULL),
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osr_loop_entry_(NULL),
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osr_values_(NULL) { }
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// Creates the loop entry block for the given statement, setting up OSR
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// entries as necessary, and sets the current block to the new block.
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HBasicBlock* BuildOsrLoopEntry(IterationStatement* statement);
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// Process the hydrogen graph after it has been completed, performing
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// any OSR-specific cleanups or changes.
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void FinishGraph();
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// Process the OSR values and phis after initial graph optimization.
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void FinishOsrValues();
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// Return the number of slots in the unoptimized frame at the entry to OSR.
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int UnoptimizedFrameSlots() const {
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return unoptimized_frame_slots_;
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}
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bool HasOsrEntryAt(IterationStatement* statement);
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private:
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int unoptimized_frame_slots_;
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HOptimizedGraphBuilder* builder_;
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HBasicBlock* osr_entry_;
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HBasicBlock* osr_loop_entry_;
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ZoneList<HUnknownOSRValue*>* osr_values_;
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};
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} } // namespace v8::internal
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#endif // V8_HYDROGEN_OSR_H_
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