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src/cpu/zero/vm/frame_zero.hpp@c09ee209b65c (annotated)

src/cpu/zero/vm/frame_zero.hpp

Fri, 12 Feb 2010 10:34:11 -0800

author

kvn

date

Fri, 12 Feb 2010 10:34:11 -0800

changeset 1691

c09ee209b65c

parent 1513

8e7adf982378

child 1860

0c5b3cf3c1f5

permissions

-rw-r--r--

6926048: Improve Zero performance
Summary: Make Zero figure out result types in a similar way to C++ interpreter implementation.
Reviewed-by: kvn
Contributed-by: gbenson@redhat.com

never@1445	1	/*
never@1445	2	* Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
never@1445	3	* Copyright 2007, 2008, 2009 Red Hat, Inc.
never@1445	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@1445	5	*
never@1445	6	* This code is free software; you can redistribute it and/or modify it
never@1445	7	* under the terms of the GNU General Public License version 2 only, as
never@1445	8	* published by the Free Software Foundation.
never@1445	9	*
never@1445	10	* This code is distributed in the hope that it will be useful, but WITHOUT
never@1445	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@1445	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@1445	13	* version 2 for more details (a copy is included in the LICENSE file that
never@1445	14	* accompanied this code).
never@1445	15	*
never@1445	16	* You should have received a copy of the GNU General Public License version
never@1445	17	* 2 along with this work; if not, write to the Free Software Foundation,
never@1445	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@1445	19	*
never@1445	20	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
never@1445	21	* CA 95054 USA or visit www.sun.com if you need additional information or
never@1445	22	* have any questions.
never@1445	23	*
never@1445	24	*/
never@1445	25
never@1445	26	// A frame represents a physical stack frame on the Zero stack.
never@1445	27
never@1445	28	public:
never@1445	29	enum {
never@1445	30	pc_return_offset = 0
never@1445	31	};
never@1445	32
never@1445	33	// Constructor
never@1445	34	public:
never@1445	35	frame(intptr_t* sp, intptr_t* fp);
never@1445	36
never@1445	37	// The sp of a Zero frame is the address of the highest word in
never@1445	38	// that frame. We keep track of the lowest address too, so the
never@1445	39	// boundaries of the frame are available for debug printing.
never@1445	40	private:
never@1445	41	intptr_t* _fp;
never@1445	42
never@1445	43	public:
never@1445	44	intptr_t* fp() const {
never@1445	45	return _fp;
never@1445	46	}
never@1445	47
never@1445	48	#ifdef CC_INTERP
never@1445	49	inline interpreterState get_interpreterState() const;
never@1445	50	#endif // CC_INTERP
never@1445	51
never@1445	52	public:
never@1445	53	const ZeroFrame *zeroframe() const {
never@1445	54	return (ZeroFrame *) sp();
never@1445	55	}
never@1445	56
never@1445	57	const EntryFrame *zero_entryframe() const {
never@1445	58	return zeroframe()->as_entry_frame();
never@1445	59	}
never@1445	60	const InterpreterFrame *zero_interpreterframe() const {
never@1445	61	return zeroframe()->as_interpreter_frame();
never@1445	62	}
never@1445	63	const SharkFrame *zero_sharkframe() const {
never@1445	64	return zeroframe()->as_shark_frame();
never@1445	65	}
never@1445	66
never@1445	67	public:
twisti@1513	68	frame sender_for_nonentry_frame(RegisterMap* map) const;
never@1445	69
never@1445	70	public:
never@1445	71	void zero_print_on_error(int index,
never@1445	72	outputStream* st,
never@1445	73	char* buf,
never@1445	74	int buflen) const;