hotspot/src/cpu/x86/vm/relocInfo_x86.hpp
author coleenp
Wed, 28 May 2008 21:06:24 -0700
changeset 593 803947e176bd
parent 590 2954744d7bba
child 670 ddf3e9583f2f
permissions -rw-r--r--
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC Summary: decouple set_klass() with zeroing the gap when compressed. Reviewed-by: kvn, ysr, jrose
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/*
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 * Copyright 1997-1999 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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  // machine-dependent parts of class relocInfo
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 private:
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  enum {
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    // Intel instructions are byte-aligned.
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    offset_unit        =  1,
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    // Encodes Assembler::disp32_operand vs. Assembler::imm32_operand.
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#ifndef AMD64
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    format_width       =  1
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#else
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    // vs Assembler::narrow_oop_operand.
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    format_width       =  2
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#endif
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  };