Mercurial > hg > truffle
annotate graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotRegisterConfig.java @ 14614:abf7cf57df5e
added RegisterConfig.areAllAllocatableRegistersCallerSaved()
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 19 Mar 2014 12:42:43 +0100 |
| parents | 883fbd3e06e0 |
| children | 64dcb92ee75a |
| rev | line source |
|---|---|
| 10459 | 1 /* |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 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 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 package com.oracle.graal.hotspot.sparc; | |
| 24 | |
| 25 import static com.oracle.graal.sparc.SPARC.*; | |
| 26 import static com.oracle.graal.phases.GraalOptions.*; | |
| 27 | |
| 28 import java.util.*; | |
| 29 | |
| 30 import com.oracle.graal.sparc.*; | |
| 31 import com.oracle.graal.api.code.*; | |
| 32 import com.oracle.graal.api.code.CallingConvention.Type; | |
| 33 import com.oracle.graal.api.meta.*; | |
| 34 import com.oracle.graal.graph.*; | |
| 35 import com.oracle.graal.hotspot.*; | |
| 11233 | 36 import com.oracle.graal.lir.*; |
| 10459 | 37 |
| 38 public class SPARCHotSpotRegisterConfig implements RegisterConfig { | |
| 39 | |
| 40 private final Architecture architecture; | |
| 41 | |
| 42 private final Register[] allocatable; | |
| 43 | |
| 44 private final HashMap<PlatformKind, Register[]> categorized = new HashMap<>(); | |
| 45 | |
| 46 private final RegisterAttributes[] attributesMap; | |
| 47 | |
| 48 @Override | |
| 49 public Register[] getAllocatableRegisters() { | |
| 50 return allocatable.clone(); | |
| 51 } | |
| 52 | |
| 53 public Register[] getAllocatableRegisters(PlatformKind kind) { | |
| 54 if (categorized.containsKey(kind)) { | |
| 55 return categorized.get(kind); | |
| 56 } | |
| 57 | |
| 58 ArrayList<Register> list = new ArrayList<>(); | |
| 59 for (Register reg : getAllocatableRegisters()) { | |
| 60 if (architecture.canStoreValue(reg.getRegisterCategory(), kind)) { | |
| 61 list.add(reg); | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 Register[] ret = list.toArray(new Register[0]); | |
| 66 categorized.put(kind, ret); | |
| 67 return ret; | |
| 68 } | |
| 69 | |
| 70 @Override | |
| 71 public RegisterAttributes[] getAttributesMap() { | |
| 72 return attributesMap.clone(); | |
| 73 } | |
| 74 | |
| 10792 | 75 private final Register[] cpuCallerParameterRegisters = {o0, o1, o2, o3, o4, o5}; |
| 76 private final Register[] cpuCalleeParameterRegisters = {i0, i1, i2, i3, i4, i5}; | |
| 77 | |
| 10459 | 78 private final Register[] fpuParameterRegisters = {f0, f1, f2, f3, f4, f5, f6, f7}; |
| 79 | |
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80 private final Register[] callerSaveRegisters = {g1, g3, g4, g5, o0, o1, o2, o3, o4, o5, o7}; |
| 11233 | 81 |
| 82 /** | |
| 83 * Registers saved by the callee. This lists all L and I registers which are saved in the | |
| 84 * register window. {@link FrameMap} uses this array to calculate the spill area size. | |
| 85 */ | |
| 86 private final Register[] calleeSaveRegisters = {l0, l1, l2, l3, l4, l5, l6, l7, i0, i1, i2, i3, i4, i5, i6, i7}; | |
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87 |
| 10459 | 88 private final CalleeSaveLayout csl; |
| 89 | |
| 90 private static Register findRegister(String name, Register[] all) { | |
| 91 for (Register reg : all) { | |
| 92 if (reg.name.equals(name)) { | |
| 93 return reg; | |
| 94 } | |
| 95 } | |
| 96 throw new IllegalArgumentException("register " + name + " is not allocatable"); | |
| 97 } | |
| 98 | |
| 99 private static Register[] initAllocatable(boolean reserveForHeapBase) { | |
| 100 Register[] registers = null; | |
| 101 // @formatter:off | |
| 102 if (reserveForHeapBase) { | |
| 103 registers = new Register[] { | |
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104 // TODO this is not complete |
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105 o0, o1, o2, o3, o4, o5, /*o6,*/ o7, |
| 10459 | 106 l0, l1, l2, l3, l4, l5, l6, l7, |
| 11233 | 107 i0, i1, i2, i3, i4, i5, /*i6,*/ /*i7,*/ |
| 10459 | 108 f0, f1, f2, f3, f4, f5, f6, f7 |
| 109 }; | |
| 110 } else { | |
| 111 registers = new Register[] { | |
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112 // TODO this is not complete |
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113 o0, o1, o2, o3, o4, o5, /*o6,*/ o7, |
| 10459 | 114 l0, l1, l2, l3, l4, l5, l6, l7, |
| 11233 | 115 i0, i1, i2, i3, i4, i5, /*i6,*/ /*i7,*/ |
| 10459 | 116 f0, f1, f2, f3, f4, f5, f6, f7 |
| 117 }; | |
| 118 } | |
| 119 // @formatter:on | |
| 120 | |
| 121 if (RegisterPressure.getValue() != null) { | |
| 122 String[] names = RegisterPressure.getValue().split(","); | |
| 123 Register[] regs = new Register[names.length]; | |
| 124 for (int i = 0; i < names.length; i++) { | |
| 125 regs[i] = findRegister(names[i], registers); | |
| 126 } | |
| 127 return regs; | |
| 128 } | |
| 129 | |
| 130 return registers; | |
| 131 } | |
| 132 | |
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133 public SPARCHotSpotRegisterConfig(TargetDescription target, HotSpotVMConfig config) { |
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134 this.architecture = target.arch; |
| 10459 | 135 |
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136 csl = new CalleeSaveLayout(target, -1, -1, target.arch.getWordSize(), calleeSaveRegisters); |
| 10459 | 137 allocatable = initAllocatable(config.useCompressedOops); |
| 138 attributesMap = RegisterAttributes.createMap(this, SPARC.allRegisters); | |
| 139 } | |
| 140 | |
| 141 @Override | |
| 142 public Register[] getCallerSaveRegisters() { | |
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143 return callerSaveRegisters; |
| 10459 | 144 } |
| 145 | |
| 146 @Override | |
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added RegisterConfig.areAllAllocatableRegistersCallerSaved()
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parents:
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147 public boolean areAllAllocatableRegistersCallerSaved() { |
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added RegisterConfig.areAllAllocatableRegistersCallerSaved()
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148 return false; |
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parents:
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149 } |
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parents:
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150 |
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parents:
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151 @Override |
| 10459 | 152 public Register getRegisterForRole(int index) { |
| 153 throw new UnsupportedOperationException(); | |
| 154 } | |
| 155 | |
| 156 @Override | |
| 157 public CallingConvention getCallingConvention(Type type, JavaType returnType, JavaType[] parameterTypes, TargetDescription target, boolean stackOnly) { | |
| 10792 | 158 if (type == Type.JavaCall || type == Type.NativeCall) { |
| 159 return callingConvention(cpuCallerParameterRegisters, returnType, parameterTypes, type, target, stackOnly); | |
| 10459 | 160 } |
| 10792 | 161 if (type == Type.JavaCallee) { |
| 162 return callingConvention(cpuCalleeParameterRegisters, returnType, parameterTypes, type, target, stackOnly); | |
| 163 } | |
| 164 throw GraalInternalError.shouldNotReachHere(); | |
| 10459 | 165 } |
| 166 | |
| 167 public Register[] getCallingConventionRegisters(Type type, Kind kind) { | |
| 168 if (architecture.canStoreValue(FPU, kind)) { | |
| 169 return fpuParameterRegisters; | |
| 170 } | |
| 171 assert architecture.canStoreValue(CPU, kind); | |
| 10792 | 172 return type == Type.JavaCallee ? cpuCalleeParameterRegisters : cpuCallerParameterRegisters; |
| 10459 | 173 } |
| 174 | |
| 175 private CallingConvention callingConvention(Register[] generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, Type type, TargetDescription target, boolean stackOnly) { | |
| 176 AllocatableValue[] locations = new AllocatableValue[parameterTypes.length]; | |
| 177 | |
| 178 int currentGeneral = 0; | |
| 179 int currentFloating = 0; | |
| 180 int currentStackOffset = 0; | |
| 181 | |
| 182 for (int i = 0; i < parameterTypes.length; i++) { | |
| 183 final Kind kind = parameterTypes[i].getKind(); | |
| 184 | |
| 185 switch (kind) { | |
| 186 case Byte: | |
| 187 case Boolean: | |
| 188 case Short: | |
| 189 case Char: | |
| 190 case Int: | |
| 191 case Long: | |
| 192 case Object: | |
| 193 if (!stackOnly && currentGeneral < generalParameterRegisters.length) { | |
| 194 Register register = generalParameterRegisters[currentGeneral++]; | |
| 195 locations[i] = register.asValue(kind); | |
| 196 } | |
| 197 break; | |
| 198 case Float: | |
| 199 case Double: | |
| 200 if (!stackOnly && currentFloating < fpuParameterRegisters.length) { | |
| 201 Register register = fpuParameterRegisters[currentFloating++]; | |
| 202 locations[i] = register.asValue(kind); | |
| 203 } | |
| 204 break; | |
| 205 default: | |
| 206 throw GraalInternalError.shouldNotReachHere(); | |
| 207 } | |
| 208 | |
| 209 if (locations[i] == null) { | |
| 210 locations[i] = StackSlot.get(kind.getStackKind(), currentStackOffset, !type.out); | |
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parents:
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changeset
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211 currentStackOffset += Math.max(target.getSizeInBytes(kind), target.wordSize); |
| 10459 | 212 } |
| 213 } | |
| 214 | |
| 215 Kind returnKind = returnType == null ? Kind.Void : returnType.getKind(); | |
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216 AllocatableValue returnLocation = returnKind == Kind.Void ? Value.ILLEGAL : getReturnRegister(returnKind, type).asValue(returnKind.getStackKind()); |
| 10459 | 217 return new CallingConvention(currentStackOffset, returnLocation, locations); |
| 218 } | |
| 219 | |
| 220 @Override | |
| 221 public Register getReturnRegister(Kind kind) { | |
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222 return getReturnRegister(kind, Type.JavaCallee); |
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223 } |
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224 |
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225 private static Register getReturnRegister(Kind kind, Type type) { |
| 10459 | 226 switch (kind) { |
| 227 case Boolean: | |
| 228 case Byte: | |
| 229 case Char: | |
| 230 case Short: | |
| 231 case Int: | |
| 232 case Long: | |
| 233 case Object: | |
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234 return type == Type.JavaCallee ? i0 : o0; |
| 10459 | 235 case Float: |
| 236 case Double: | |
| 237 return f0; | |
| 238 case Void: | |
| 239 case Illegal: | |
| 240 return null; | |
| 241 default: | |
| 242 throw new UnsupportedOperationException("no return register for type " + kind); | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 @Override | |
| 247 public Register getFrameRegister() { | |
| 248 return sp; | |
| 249 } | |
| 250 | |
| 251 public CalleeSaveLayout getCalleeSaveLayout() { | |
| 252 return csl; | |
| 253 } | |
| 254 | |
| 255 @Override | |
| 256 public String toString() { | |
| 257 return String.format("Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n"); | |
| 258 } | |
| 259 } |