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src/share/vm/compiler/abstractCompiler.hpp@a61af66fc99e (annotated)

src/share/vm/compiler/abstractCompiler.hpp

Sat, 01 Dec 2007 00:00:00 +0000

author

duke

date

Sat, 01 Dec 2007 00:00:00 +0000

changeset 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

Initial load

duke@435	1	/*
duke@435	2	* Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	typedef void (*initializer)(void);
duke@435	26
duke@435	27	class AbstractCompiler : public CHeapObj {
duke@435	28	private:
duke@435	29	bool _is_initialized; // Mark whether compiler object is initialized
duke@435	30
duke@435	31	protected:
duke@435	32	// Used for tracking global state of compiler runtime initialization
duke@435	33	enum { uninitialized, initializing, initialized };
duke@435	34
duke@435	35	// This method will call the initialization method "f" once (per compiler class/subclass)
duke@435	36	// and do so without holding any locks
duke@435	37	void initialize_runtimes(initializer f, volatile int* state);
duke@435	38
duke@435	39	public:
duke@435	40	AbstractCompiler() : _is_initialized(false) {}
duke@435	41
duke@435	42	// Name of this compiler
duke@435	43	virtual const char* name() = 0;
duke@435	44
duke@435	45	// Missing feature tests
duke@435	46	virtual bool supports_native() { return true; }
duke@435	47	virtual bool supports_osr () { return true; }
duke@435	48	#if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2))
duke@435	49	virtual bool is_c1 () { return false; }
duke@435	50	virtual bool is_c2 () { return false; }
duke@435	51	#else
duke@435	52	#ifdef COMPILER1
duke@435	53	bool is_c1 () { return true; }
duke@435	54	bool is_c2 () { return false; }
duke@435	55	#endif // COMPILER1
duke@435	56	#ifdef COMPILER2
duke@435	57	bool is_c1 () { return false; }
duke@435	58	bool is_c2 () { return true; }
duke@435	59	#endif // COMPILER2
duke@435	60	#endif // TIERED
duke@435	61
duke@435	62	// Customization
duke@435	63	virtual bool needs_stubs () = 0;
duke@435	64
duke@435	65	void mark_initialized() { _is_initialized = true; }
duke@435	66	bool is_initialized() { return _is_initialized; }
duke@435	67
duke@435	68	virtual void initialize() = 0;
duke@435	69
duke@435	70	// Compilation entry point for methods
duke@435	71	virtual void compile_method(ciEnv* env,
duke@435	72	ciMethod* target,
duke@435	73	int entry_bci) {
duke@435	74	ShouldNotReachHere();
duke@435	75	}
duke@435	76
duke@435	77
duke@435	78	// Print compilation timers and statistics
duke@435	79	virtual void print_timers() {
duke@435	80	ShouldNotReachHere();
duke@435	81	}
duke@435	82	};