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

/*
 * Copyright 1997-1999 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.
 *
 */

  // machine-dependent parts of class relocInfo
 private:
  enum {
    // Intel instructions are byte-aligned.
    offset_unit        =  1,

    // Encodes Assembler::disp32_operand vs. Assembler::imm32_operand.
#ifndef AMD64
    format_width       =  1
#else
    // vs Assembler::narrow_oop_operand.
    format_width       =  2
#endif
  };