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annotate jvmci/jdk.vm.ci.hotspot.aarch64/src/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotRegisterConfig.java @ 22784:0ab4d816a7f0
Always check the type of CallingConvention.Type
| author | Tom Rodriguez <tom.rodriguez@oracle.com> |
|---|---|
| date | Fri, 22 Jan 2016 14:05:49 -0800 |
| parents | d63506bb5237 |
| children | 7d014b014ce7 |
| rev | line source |
|---|---|
| 22759 | 1 /* |
| 2 * Copyright (c) 2015, 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 jdk.vm.ci.hotspot.aarch64; | |
| 24 | |
| 25 import static jdk.vm.ci.aarch64.AArch64.lr; | |
| 26 import static jdk.vm.ci.aarch64.AArch64.r0; | |
| 27 import static jdk.vm.ci.aarch64.AArch64.r1; | |
| 28 import static jdk.vm.ci.aarch64.AArch64.r12; | |
| 29 import static jdk.vm.ci.aarch64.AArch64.r2; | |
| 30 import static jdk.vm.ci.aarch64.AArch64.r27; | |
| 31 import static jdk.vm.ci.aarch64.AArch64.r28; | |
| 32 import static jdk.vm.ci.aarch64.AArch64.r29; | |
| 33 import static jdk.vm.ci.aarch64.AArch64.r3; | |
| 34 import static jdk.vm.ci.aarch64.AArch64.r4; | |
| 35 import static jdk.vm.ci.aarch64.AArch64.r5; | |
| 36 import static jdk.vm.ci.aarch64.AArch64.r6; | |
| 37 import static jdk.vm.ci.aarch64.AArch64.r7; | |
| 38 import static jdk.vm.ci.aarch64.AArch64.r9; | |
| 39 import static jdk.vm.ci.aarch64.AArch64.sp; | |
| 40 import static jdk.vm.ci.aarch64.AArch64.v0; | |
| 41 import static jdk.vm.ci.aarch64.AArch64.v1; | |
| 42 import static jdk.vm.ci.aarch64.AArch64.v2; | |
| 43 import static jdk.vm.ci.aarch64.AArch64.v3; | |
| 44 import static jdk.vm.ci.aarch64.AArch64.v4; | |
| 45 import static jdk.vm.ci.aarch64.AArch64.v5; | |
| 46 import static jdk.vm.ci.aarch64.AArch64.v6; | |
| 47 import static jdk.vm.ci.aarch64.AArch64.v7; | |
| 48 | |
| 49 import java.util.ArrayList; | |
| 50 import java.util.Arrays; | |
| 51 import java.util.Collections; | |
| 52 import java.util.HashSet; | |
| 53 import java.util.Set; | |
| 54 | |
| 55 import jdk.vm.ci.aarch64.AArch64; | |
| 56 import jdk.vm.ci.code.Architecture; | |
| 57 import jdk.vm.ci.code.CallingConvention; | |
| 58 import jdk.vm.ci.code.CallingConvention.Type; | |
| 59 import jdk.vm.ci.code.Register; | |
| 60 import jdk.vm.ci.code.RegisterAttributes; | |
| 61 import jdk.vm.ci.code.RegisterConfig; | |
| 62 import jdk.vm.ci.code.StackSlot; | |
| 63 import jdk.vm.ci.code.TargetDescription; | |
| 64 import jdk.vm.ci.common.JVMCIError; | |
|
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22759
diff
changeset
|
65 import jdk.vm.ci.hotspot.HotSpotCallingConventionType; |
| 22759 | 66 import jdk.vm.ci.hotspot.HotSpotVMConfig; |
| 67 import jdk.vm.ci.meta.AllocatableValue; | |
| 68 import jdk.vm.ci.meta.JavaKind; | |
| 69 import jdk.vm.ci.meta.JavaType; | |
| 70 import jdk.vm.ci.meta.LIRKind; | |
| 71 import jdk.vm.ci.meta.PlatformKind; | |
| 72 import jdk.vm.ci.meta.Value; | |
| 73 | |
| 74 public class AArch64HotSpotRegisterConfig implements RegisterConfig { | |
| 75 | |
| 76 private final Architecture architecture; | |
| 77 | |
| 78 private final Register[] allocatable; | |
| 79 | |
| 80 private final int maxFrameSize; | |
| 81 | |
| 82 /** | |
| 83 * The caller saved registers always include all parameter registers. | |
| 84 */ | |
| 85 private final Register[] callerSaved; | |
| 86 | |
| 87 private final boolean allAllocatableAreCallerSaved; | |
| 88 | |
| 89 private final RegisterAttributes[] attributesMap; | |
| 90 | |
| 91 public int getMaximumFrameSize() { | |
| 92 return maxFrameSize; | |
| 93 } | |
| 94 | |
| 95 @Override | |
| 96 public Register[] getAllocatableRegisters() { | |
| 97 return allocatable.clone(); | |
| 98 } | |
| 99 | |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
100 @Override |
| 22759 | 101 public Register[] filterAllocatableRegisters(PlatformKind kind, Register[] registers) { |
| 102 ArrayList<Register> list = new ArrayList<>(); | |
| 103 for (Register reg : registers) { | |
| 104 if (architecture.canStoreValue(reg.getRegisterCategory(), kind)) { | |
| 105 list.add(reg); | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 Register[] ret = list.toArray(new Register[list.size()]); | |
| 110 return ret; | |
| 111 } | |
| 112 | |
| 113 @Override | |
| 114 public RegisterAttributes[] getAttributesMap() { | |
| 115 return attributesMap.clone(); | |
| 116 } | |
| 117 | |
| 118 private final Register[] javaGeneralParameterRegisters = {r1, r2, r3, r4, r5, r6, r7, r0}; | |
| 119 private final Register[] nativeGeneralParameterRegisters = {r0, r1, r2, r3, r4, r5, r6, r7}; | |
| 120 private final Register[] simdParameterRegisters = {v0, v1, v2, v3, v4, v5, v6, v7}; | |
| 121 | |
| 122 public static final Register inlineCacheRegister = r9; | |
| 123 | |
| 124 /** | |
| 125 * Vtable stubs expect the metaspace Method in r12. | |
| 126 */ | |
| 127 public static final Register metaspaceMethodRegister = r12; | |
| 128 | |
| 129 public static final Register heapBaseRegister = r27; | |
| 130 public static final Register threadRegister = r28; | |
| 131 public static final Register fp = r29; | |
| 132 | |
| 133 private static Register[] initAllocatable(Architecture arch, boolean reserveForHeapBase) { | |
| 134 Register[] allRegisters = arch.getAvailableValueRegisters(); | |
| 135 Register[] registers = new Register[allRegisters.length - (reserveForHeapBase ? 5 : 4)]; | |
| 136 | |
| 137 int idx = 0; | |
| 138 for (Register reg : allRegisters) { | |
| 139 if (reg.equals(threadRegister) || reg.equals(fp) || reg.equals(lr) || reg.equals(sp)) { | |
| 140 // skip thread register, frame pointer, link register and stack pointer | |
| 141 continue; | |
| 142 } | |
| 143 if (reserveForHeapBase && reg.equals(heapBaseRegister)) { | |
| 144 // skip heap base register | |
| 145 continue; | |
| 146 } | |
| 147 | |
| 148 registers[idx++] = reg; | |
| 149 } | |
| 150 | |
| 151 assert idx == registers.length; | |
| 152 return registers; | |
| 153 } | |
| 154 | |
| 155 public AArch64HotSpotRegisterConfig(Architecture architecture, HotSpotVMConfig config) { | |
| 156 this(architecture, config, initAllocatable(architecture, config.useCompressedOops)); | |
| 157 assert callerSaved.length >= allocatable.length; | |
| 158 } | |
| 159 | |
| 160 public AArch64HotSpotRegisterConfig(Architecture architecture, HotSpotVMConfig config, Register[] allocatable) { | |
| 161 this.architecture = architecture; | |
| 162 this.maxFrameSize = config.maxFrameSize; | |
| 163 | |
| 164 this.allocatable = allocatable.clone(); | |
| 165 Set<Register> callerSaveSet = new HashSet<>(); | |
| 166 Collections.addAll(callerSaveSet, allocatable); | |
| 167 Collections.addAll(callerSaveSet, simdParameterRegisters); | |
| 168 Collections.addAll(callerSaveSet, javaGeneralParameterRegisters); | |
| 169 Collections.addAll(callerSaveSet, nativeGeneralParameterRegisters); | |
| 170 callerSaved = callerSaveSet.toArray(new Register[callerSaveSet.size()]); | |
| 171 | |
| 172 allAllocatableAreCallerSaved = true; | |
| 173 attributesMap = RegisterAttributes.createMap(this, AArch64.allRegisters); | |
| 174 } | |
| 175 | |
| 176 @Override | |
| 177 public Register[] getCallerSaveRegisters() { | |
| 178 return callerSaved; | |
| 179 } | |
| 180 | |
| 181 public Register[] getCalleeSaveRegisters() { | |
| 182 return null; | |
| 183 } | |
| 184 | |
| 185 @Override | |
| 186 public boolean areAllAllocatableRegistersCallerSaved() { | |
| 187 return allAllocatableAreCallerSaved; | |
| 188 } | |
| 189 | |
| 190 @Override | |
| 191 public Register getRegisterForRole(int index) { | |
| 192 throw new UnsupportedOperationException(); | |
| 193 } | |
| 194 | |
| 195 @Override | |
|
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22759
diff
changeset
|
196 public CallingConvention getCallingConvention(Type type, JavaType returnType, JavaType[] parameterTypes, TargetDescription target) { |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
197 HotSpotCallingConventionType hotspotType = (HotSpotCallingConventionType) type; |
|
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22759
diff
changeset
|
198 if (type == HotSpotCallingConventionType.NativeCall) { |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
199 return callingConvention(nativeGeneralParameterRegisters, returnType, parameterTypes, hotspotType, target); |
| 22759 | 200 } |
| 201 // On x64, parameter locations are the same whether viewed | |
| 202 // from the caller or callee perspective | |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
203 return callingConvention(javaGeneralParameterRegisters, returnType, parameterTypes, hotspotType, target); |
| 22759 | 204 } |
| 205 | |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
206 @Override |
| 22759 | 207 public Register[] getCallingConventionRegisters(Type type, JavaKind kind) { |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
208 HotSpotCallingConventionType hotspotType = (HotSpotCallingConventionType) type; |
| 22759 | 209 switch (kind) { |
| 210 case Boolean: | |
| 211 case Byte: | |
| 212 case Short: | |
| 213 case Char: | |
| 214 case Int: | |
| 215 case Long: | |
| 216 case Object: | |
|
22784
0ab4d816a7f0
Always check the type of CallingConvention.Type
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22783
diff
changeset
|
217 return hotspotType == HotSpotCallingConventionType.NativeCall ? nativeGeneralParameterRegisters : javaGeneralParameterRegisters; |
| 22759 | 218 case Float: |
| 219 case Double: | |
| 220 return simdParameterRegisters; | |
| 221 default: | |
| 222 throw JVMCIError.shouldNotReachHere(); | |
| 223 } | |
| 224 } | |
| 225 | |
|
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22759
diff
changeset
|
226 private CallingConvention callingConvention(Register[] generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, HotSpotCallingConventionType type, TargetDescription target) { |
| 22759 | 227 AllocatableValue[] locations = new AllocatableValue[parameterTypes.length]; |
| 228 | |
| 229 int currentGeneral = 0; | |
| 230 int currentSIMD = 0; | |
| 231 int currentStackOffset = 0; | |
| 232 | |
| 233 for (int i = 0; i < parameterTypes.length; i++) { | |
| 234 final JavaKind kind = parameterTypes[i].getJavaKind().getStackKind(); | |
| 235 | |
| 236 switch (kind) { | |
| 237 case Byte: | |
| 238 case Boolean: | |
| 239 case Short: | |
| 240 case Char: | |
| 241 case Int: | |
| 242 case Long: | |
| 243 case Object: | |
|
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22759
diff
changeset
|
244 if (currentGeneral < generalParameterRegisters.length) { |
| 22759 | 245 Register register = generalParameterRegisters[currentGeneral++]; |
| 246 locations[i] = register.asValue(target.getLIRKind(kind)); | |
| 247 } | |
| 248 break; | |
| 249 case Float: | |
| 250 case Double: | |
|
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22759
diff
changeset
|
251 if (currentSIMD < simdParameterRegisters.length) { |
| 22759 | 252 Register register = simdParameterRegisters[currentSIMD++]; |
| 253 locations[i] = register.asValue(target.getLIRKind(kind)); | |
| 254 } | |
| 255 break; | |
| 256 default: | |
| 257 throw JVMCIError.shouldNotReachHere(); | |
| 258 } | |
| 259 | |
| 260 if (locations[i] == null) { | |
| 261 LIRKind lirKind = target.getLIRKind(kind); | |
| 262 locations[i] = StackSlot.get(lirKind, currentStackOffset, !type.out); | |
| 263 currentStackOffset += Math.max(lirKind.getPlatformKind().getSizeInBytes(), target.wordSize); | |
| 264 } | |
| 265 } | |
| 266 | |
| 267 JavaKind returnKind = returnType == null ? JavaKind.Void : returnType.getJavaKind(); | |
| 268 AllocatableValue returnLocation = returnKind == JavaKind.Void ? Value.ILLEGAL : getReturnRegister(returnKind).asValue(target.getLIRKind(returnKind.getStackKind())); | |
| 269 return new CallingConvention(currentStackOffset, returnLocation, locations); | |
| 270 } | |
| 271 | |
| 272 @Override | |
| 273 public Register getReturnRegister(JavaKind kind) { | |
| 274 switch (kind) { | |
| 275 case Boolean: | |
| 276 case Byte: | |
| 277 case Char: | |
| 278 case Short: | |
| 279 case Int: | |
| 280 case Long: | |
| 281 case Object: | |
| 282 return r0; | |
| 283 case Float: | |
| 284 case Double: | |
| 285 return v0; | |
| 286 case Void: | |
| 287 case Illegal: | |
| 288 return null; | |
| 289 default: | |
| 290 throw new UnsupportedOperationException("no return register for type " + kind); | |
| 291 } | |
| 292 } | |
| 293 | |
| 294 @Override | |
| 295 public Register getFrameRegister() { | |
| 296 return sp; | |
| 297 } | |
| 298 | |
| 299 @Override | |
| 300 public String toString() { | |
| 301 return String.format("Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n"); | |
| 302 } | |
| 303 } |