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src/share/vm/code/vmreg.cpp@ac27a9c85bea (annotated)

src/share/vm/code/vmreg.cpp

Thu, 24 May 2018 18:41:44 +0800

author

aoqi

date

Thu, 24 May 2018 18:41:44 +0800

changeset 8856

ac27a9c85bea

parent 6876

710a3c8b516e

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "asm/assembler.hpp"
aoqi@0	27	#include "code/vmreg.hpp"
aoqi@0	28
aoqi@0	29	// First VMReg value that could refer to a stack slot
aoqi@0	30	VMReg VMRegImpl::stack0 = (VMReg)(intptr_t)((ConcreteRegisterImpl::number_of_registers + 7) & ~7);
aoqi@0	31
aoqi@0	32	// VMRegs are 4 bytes wide on all platforms
aoqi@0	33	const int VMRegImpl::stack_slot_size = 4;
aoqi@0	34	const int VMRegImpl::slots_per_word = wordSize / stack_slot_size;
aoqi@0	35
aoqi@0	36	const int VMRegImpl::register_count = ConcreteRegisterImpl::number_of_registers;
aoqi@0	37	// Register names
aoqi@0	38	const char *VMRegImpl::regName[ConcreteRegisterImpl::number_of_registers];
aoqi@0	39
aoqi@0	40	void VMRegImpl::print_on(outputStream* st) const {
aoqi@0	41	if( is_reg() ) {
aoqi@0	42	assert( VMRegImpl::regName[value()], "" );
aoqi@0	43	st->print("%s",VMRegImpl::regName[value()]);
aoqi@0	44	} else if (is_stack()) {
aoqi@0	45	int stk = value() - stack0->value();
aoqi@0	46	st->print("[%d]", stk*4);
aoqi@0	47	} else {
aoqi@0	48	st->print("BAD!");
aoqi@0	49	}
aoqi@0	50	}