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src/cpu/sparc/vm/vmreg_sparc.inline.hpp@126ea7725993 (annotated)

src/cpu/sparc/vm/vmreg_sparc.inline.hpp

Tue, 03 Aug 2010 08:13:38 -0400

author

bobv

date

Tue, 03 Aug 2010 08:13:38 -0400

changeset 2036

126ea7725993

parent 1907

c18cbe5936b8

child 2314

f95d63e2154a

permissions

-rw-r--r--

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

duke@435	1	/*
trims@1907	2	* Copyright (c) 2006, 2007, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	inline VMReg RegisterImpl::as_VMReg() {
duke@435	26	if( this==noreg ) return VMRegImpl::Bad();
duke@435	27	return VMRegImpl::as_VMReg(encoding() << 1 );
duke@435	28	}
duke@435	29
duke@435	30	inline VMReg FloatRegisterImpl::as_VMReg() { return VMRegImpl::as_VMReg( ConcreteRegisterImpl::max_gpr + encoding() ); }
duke@435	31
duke@435	32
duke@435	33	inline bool VMRegImpl::is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; }
duke@435	34	inline bool VMRegImpl::is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr &&
duke@435	35	value() < ConcreteRegisterImpl::max_fpr; }
duke@435	36	inline Register VMRegImpl::as_Register() {
duke@435	37
duke@435	38	assert( is_Register() && is_even(value()), "even-aligned GPR name" );
duke@435	39	// Yuk
duke@435	40	return ::as_Register(value()>>1);
duke@435	41	}
duke@435	42
duke@435	43	inline FloatRegister VMRegImpl::as_FloatRegister() {
duke@435	44	assert( is_FloatRegister(), "must be" );
duke@435	45	// Yuk
duke@435	46	return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr );
duke@435	47	}
duke@435	48
duke@435	49	inline bool VMRegImpl::is_concrete() {
duke@435	50	assert(is_reg(), "must be");
duke@435	51	int v = value();
duke@435	52	if ( v < ConcreteRegisterImpl::max_gpr ) {
duke@435	53	return is_even(v);
duke@435	54	}
duke@435	55	// F0..F31
duke@435	56	if ( v <= ConcreteRegisterImpl::max_gpr + 31) return true;
duke@435	57	if ( v < ConcreteRegisterImpl::max_fpr) {
duke@435	58	return is_even(v);
duke@435	59	}
duke@435	60	assert(false, "what register?");
duke@435	61	return false;
duke@435	62	}