Mercurial > hg > truffle
view src/cpu/sparc/vm/interpreter_sparc.hpp @ 1364:0dc88ad3244e
6940677: Use 64 bytes chunk copy for arraycopy on Sparc
Summary: For large arrays we should use 64 bytes chunks copy.
Reviewed-by: twisti
author | kvn |
---|---|
date | Tue, 06 Apr 2010 15:18:10 -0700 |
parents | a61af66fc99e |
children | 2338d41fbd81 |
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/* * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ public: // Support for Tagged Stacks // Stack index relative to tos (which points at value) static int expr_index_at(int i) { return stackElementWords() * i; } static int expr_tag_index_at(int i) { assert(TaggedStackInterpreter, "should not call this"); // tag is one word above java stack element return stackElementWords() * i + 1; } static int expr_offset_in_bytes(int i) { return stackElementSize()*i + wordSize; } static int expr_tag_offset_in_bytes (int i) { assert(TaggedStackInterpreter, "should not call this"); return expr_offset_in_bytes(i) + wordSize; } // Already negated by c++ interpreter static int local_index_at(int i) { assert(i<=0, "local direction already negated"); return stackElementWords() * i + (value_offset_in_bytes()/wordSize); } static int local_tag_index_at(int i) { assert(i<=0, "local direction already negated"); assert(TaggedStackInterpreter, "should not call this"); return stackElementWords() * i + (tag_offset_in_bytes()/wordSize); }