Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/interpreter/OopMapForCacheEntry.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children |
| rev | line source |
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| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.interpreter; | |
| 26 | |
| 27 import java.util.*; | |
| 28 import sun.jvm.hotspot.oops.*; | |
| 29 import sun.jvm.hotspot.utilities.*; | |
| 30 | |
| 31 class OopMapForCacheEntry extends GenerateOopMap { | |
| 32 private OopMapCacheEntry entry; | |
| 33 private int bci; | |
| 34 private int stackTop; | |
| 35 | |
| 36 OopMapForCacheEntry(Method method, int bci, OopMapCacheEntry entry) { | |
| 37 super(method); | |
| 38 this.entry = entry; | |
| 39 this.bci = bci; | |
| 40 this.stackTop = -1; | |
| 41 } | |
| 42 | |
| 43 public boolean reportResults() { return false; } | |
| 44 | |
| 45 public boolean possibleGCPoint(BytecodeStream bcs) { | |
| 46 return false; // We are not reporting any result. We call resultForBasicblock directly | |
| 47 } | |
| 48 | |
| 49 public void fillStackmapProlog(int nof_gc_points) { | |
| 50 // Do nothing | |
| 51 } | |
| 52 | |
| 53 public void fillStackmapEpilog() { | |
| 54 // Do nothing | |
| 55 } | |
| 56 | |
| 57 public void fillStackmapForOpcodes(BytecodeStream bcs, | |
| 58 CellTypeStateList vars, | |
| 59 CellTypeStateList stack, | |
| 60 int stackTop) { | |
| 61 // Only interested in one specific bci | |
| 62 if (bcs.bci() == bci) { | |
| 63 entry.setMask(vars, stack, stackTop); | |
| 64 this.stackTop = stackTop; | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 public void fillInitVars(List/*<Integer>*/ initVars) { | |
| 69 // Do nothing | |
| 70 } | |
| 71 | |
| 72 public void computeMap() { | |
| 73 if (Assert.ASSERTS_ENABLED) { | |
| 74 Assert.that(!method().isNative(), "cannot compute oop map for native methods"); | |
| 75 } | |
| 76 // First check if it is a method where the stackmap is always empty | |
| 77 if (method().getCodeSize() == 0 || method().getMaxLocals() + method().getMaxStack() == 0) { | |
| 78 entry.setEmptyMask(); | |
| 79 } else { | |
| 80 super.computeMap(); | |
| 81 resultForBasicblock(bci); | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 public int size() { | |
| 86 if (Assert.ASSERTS_ENABLED) { | |
| 87 Assert.that(stackTop != -1, "computeMap must be called first"); | |
| 88 } | |
| 89 return (int) ((method().isStatic() ? 0 : 1) + method().getMaxLocals() + stackTop); | |
| 90 } | |
| 91 } |