Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCRegister.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
2 * Copyright (c) 2000, 2002, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.asm.sparc; | |
| 26 | |
| 27 import sun.jvm.hotspot.asm.*; | |
| 28 import sun.jvm.hotspot.runtime.*; | |
| 29 import sun.jvm.hotspot.utilities.*; | |
| 30 | |
| 31 public class SPARCRegister extends Register { | |
| 32 private static final int nofRegisters = 32; // total number of registers | |
| 33 | |
| 34 private static final int GLOBAL_BASE = 0; | |
| 35 private static final int OUT_BASE = 8; | |
| 36 private static final int LOCAL_BASE = 16; | |
| 37 private static final int IN_BASE = 24; | |
| 38 | |
| 39 private static final int LOCAL_SP_WORD_OFFSET = 0; | |
| 40 private static final int IN_SP_WORD_OFFSET = 8; | |
| 41 | |
| 42 /** Constructor for an explicitly numbered register */ | |
| 43 public SPARCRegister(int number) { | |
| 44 super(number); | |
| 45 } | |
| 46 | |
| 47 /** Constructor for an I, G, O, or L register */ | |
| 48 public SPARCRegister(SPARCRegisterType type, int number) { | |
| 49 if (type == SPARCRegisterType.GLOBAL) { | |
| 50 this.number = number + GLOBAL_BASE; | |
| 51 } else if (type == SPARCRegisterType.OUT) { | |
| 52 this.number = number + OUT_BASE; | |
| 53 } else if (type == SPARCRegisterType.LOCAL) { | |
| 54 this.number = number + LOCAL_BASE; | |
| 55 } else if (type == SPARCRegisterType.IN) { | |
| 56 this.number = number + IN_BASE; | |
| 57 } else { | |
| 58 throw new IllegalArgumentException("Invalid SPARC register type"); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 public int getNumberOfRegisters() { | |
| 63 return nofRegisters; | |
| 64 } | |
| 65 | |
| 66 public boolean isIn() { | |
| 67 return (IN_BASE <= getNumber()); | |
| 68 } | |
| 69 | |
| 70 public boolean isLocal() { | |
| 71 return (LOCAL_BASE <= getNumber() && getNumber() < IN_BASE); | |
| 72 } | |
| 73 | |
| 74 public boolean isOut() { | |
| 75 return (OUT_BASE <= getNumber() && getNumber() < LOCAL_BASE); | |
| 76 } | |
| 77 | |
| 78 public boolean isGlobal() { | |
| 79 return (GLOBAL_BASE <= getNumber() && getNumber() < OUT_BASE); | |
| 80 } | |
| 81 | |
| 82 public SPARCRegister afterSave() { | |
| 83 if (Assert.ASSERTS_ENABLED) { | |
| 84 Assert.that(isOut() || isGlobal(), "register not visible after save"); | |
| 85 } | |
| 86 return isOut() ? new SPARCRegister(getNumber() + (IN_BASE - OUT_BASE)) : this; | |
| 87 } | |
| 88 | |
| 89 public SPARCRegister afterRestore() { | |
| 90 if (Assert.ASSERTS_ENABLED) { | |
| 91 Assert.that(isIn() || isGlobal(), "register not visible after save"); | |
| 92 } | |
| 93 return isIn() ? new SPARCRegister(getNumber() + (OUT_BASE - IN_BASE)) : this; | |
| 94 } | |
| 95 | |
| 96 /** NOTE: this returns an offset in BYTES in this system! */ | |
| 97 public long spOffsetInSavedWindow() { | |
| 98 if (isIn()) { | |
| 99 return VM.getVM().getAddressSize() * (getNumber() - IN_BASE + IN_SP_WORD_OFFSET); | |
| 100 } else if (isLocal()) { | |
| 101 return VM.getVM().getAddressSize() * (getNumber() - LOCAL_BASE + LOCAL_SP_WORD_OFFSET); | |
| 102 } | |
| 103 if (Assert.ASSERTS_ENABLED) { | |
| 104 Assert.that(isIn() || isLocal(), "only ins and locals are saved in my frame"); | |
| 105 } | |
| 106 return 0; | |
| 107 } | |
| 108 | |
| 109 public String toString() { | |
| 110 return SPARCRegisters.getRegisterName(number); | |
| 111 } | |
| 112 | |
| 113 public boolean isFramePointer() { | |
| 114 return number == 30; // is I6? | |
| 115 } | |
| 116 | |
| 117 public boolean isStackPointer() { | |
| 118 return number == 14; // is O6? | |
| 119 } | |
| 120 | |
| 121 public boolean isFloat() { | |
| 122 return false; | |
| 123 } | |
| 124 | |
| 125 public boolean isV9Only() { | |
| 126 return false; | |
| 127 } | |
| 128 } |