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src/share/vm/shark/sharkFunction.hpp@f90c822e73f8 (annotated)

src/share/vm/shark/sharkFunction.hpp

Wed, 27 Apr 2016 01:25:04 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:25:04 +0800

changeset 0

f90c822e73f8

child 6876

710a3c8b516e

permissions

-rw-r--r--

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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* Copyright 2008, 2009 Red Hat, Inc.
aoqi@0	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	5	*
aoqi@0	6	* This code is free software; you can redistribute it and/or modify it
aoqi@0	7	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	8	* published by the Free Software Foundation.
aoqi@0	9	*
aoqi@0	10	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	13	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	14	* accompanied this code).
aoqi@0	15	*
aoqi@0	16	* You should have received a copy of the GNU General Public License version
aoqi@0	17	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	19	*
aoqi@0	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	21	* or visit www.oracle.com if you need additional information or have any
aoqi@0	22	* questions.
aoqi@0	23	*
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	#ifndef SHARE_VM_SHARK_SHARKFUNCTION_HPP
aoqi@0	27	#define SHARE_VM_SHARK_SHARKFUNCTION_HPP
aoqi@0	28
aoqi@0	29	#include "ci/ciEnv.hpp"
aoqi@0	30	#include "ci/ciStreams.hpp"
aoqi@0	31	#include "ci/ciTypeFlow.hpp"
aoqi@0	32	#include "memory/allocation.hpp"
aoqi@0	33	#include "shark/llvmHeaders.hpp"
aoqi@0	34	#include "shark/llvmValue.hpp"
aoqi@0	35	#include "shark/sharkBuilder.hpp"
aoqi@0	36	#include "shark/sharkContext.hpp"
aoqi@0	37	#include "shark/sharkInvariants.hpp"
aoqi@0	38	#include "shark/sharkStack.hpp"
aoqi@0	39
aoqi@0	40	class SharkTopLevelBlock;
aoqi@0	41	class DeferredZeroCheck;
aoqi@0	42
aoqi@0	43	class SharkFunction : public SharkTargetInvariants {
aoqi@0	44	friend class SharkStackWithNormalFrame;
aoqi@0	45
aoqi@0	46	public:
aoqi@0	47	static llvm::Function* build(ciEnv* env,
aoqi@0	48	SharkBuilder* builder,
aoqi@0	49	ciTypeFlow* flow,
aoqi@0	50	const char* name) {
aoqi@0	51	SharkFunction function(env, builder, flow, name);
aoqi@0	52	return function.function();
aoqi@0	53	}
aoqi@0	54
aoqi@0	55	private:
aoqi@0	56	SharkFunction(ciEnv* env,
aoqi@0	57	SharkBuilder* builder,
aoqi@0	58	ciTypeFlow* flow,
aoqi@0	59	const char* name)
aoqi@0	60	: SharkTargetInvariants(env, builder, flow) { initialize(name); }
aoqi@0	61
aoqi@0	62	private:
aoqi@0	63	void initialize(const char* name);
aoqi@0	64
aoqi@0	65	private:
aoqi@0	66	llvm::Function* _function;
aoqi@0	67	SharkTopLevelBlock** _blocks;
aoqi@0	68	GrowableArray<DeferredZeroCheck*> _deferred_zero_checks;
aoqi@0	69	SharkStack* _stack;
aoqi@0	70
aoqi@0	71	public:
aoqi@0	72	llvm::Function* function() const {
aoqi@0	73	return _function;
aoqi@0	74	}
aoqi@0	75	int block_count() const {
aoqi@0	76	return flow()->block_count();
aoqi@0	77	}
aoqi@0	78	SharkTopLevelBlock* block(int i) const {
aoqi@0	79	assert(i < block_count(), "should be");
aoqi@0	80	return _blocks[i];
aoqi@0	81	}
aoqi@0	82	GrowableArray<DeferredZeroCheck*>* deferred_zero_checks() {
aoqi@0	83	return &_deferred_zero_checks;
aoqi@0	84	}
aoqi@0	85	SharkStack* stack() const {
aoqi@0	86	return _stack;
aoqi@0	87	}
aoqi@0	88
aoqi@0	89	// On-stack replacement
aoqi@0	90	private:
aoqi@0	91	bool is_osr() const {
aoqi@0	92	return flow()->is_osr_flow();
aoqi@0	93	}
aoqi@0	94	llvm::FunctionType* entry_point_type() const {
aoqi@0	95	if (is_osr())
aoqi@0	96	return SharkType::osr_entry_point_type();
aoqi@0	97	else
aoqi@0	98	return SharkType::entry_point_type();
aoqi@0	99	}
aoqi@0	100
aoqi@0	101	// Block management
aoqi@0	102	private:
aoqi@0	103	llvm::BasicBlock* _block_insertion_point;
aoqi@0	104
aoqi@0	105	void set_block_insertion_point(llvm::BasicBlock* block_insertion_point) {
aoqi@0	106	_block_insertion_point = block_insertion_point;
aoqi@0	107	}
aoqi@0	108	llvm::BasicBlock* block_insertion_point() const {
aoqi@0	109	return _block_insertion_point;
aoqi@0	110	}
aoqi@0	111
aoqi@0	112	public:
aoqi@0	113	llvm::BasicBlock* CreateBlock(const char* name = "") const {
aoqi@0	114	return llvm::BasicBlock::Create(
aoqi@0	115	SharkContext::current(), name, function(), block_insertion_point());
aoqi@0	116	}
aoqi@0	117
aoqi@0	118	// Deferred zero checks
aoqi@0	119	public:
aoqi@0	120	void add_deferred_zero_check(SharkTopLevelBlock* block,
aoqi@0	121	SharkValue* value);
aoqi@0	122
aoqi@0	123	private:
aoqi@0	124	void do_deferred_zero_checks();
aoqi@0	125	};
aoqi@0	126
aoqi@0	127	#endif // SHARE_VM_SHARK_SHARKFUNCTION_HPP