Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotRegisterConfig.java @ 22783:d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Thu, 21 Jan 2016 13:53:26 -0800 |
parents | 5ba5ff0fda9e |
children | 0ab4d816a7f0 |
rev | line source |
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10459 | 1 /* |
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2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
10459 | 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 */ | |
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23 package jdk.vm.ci.hotspot.sparc; |
10459 | 24 |
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25 import static jdk.vm.ci.meta.JavaKind.Void; |
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26 import static jdk.vm.ci.meta.Value.ILLEGAL; |
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27 import static jdk.vm.ci.sparc.SPARC.REGISTER_SAFE_AREA_SIZE; |
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28 import static jdk.vm.ci.sparc.SPARC.d0; |
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29 import static jdk.vm.ci.sparc.SPARC.d2; |
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30 import static jdk.vm.ci.sparc.SPARC.d4; |
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31 import static jdk.vm.ci.sparc.SPARC.d6; |
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32 import static jdk.vm.ci.sparc.SPARC.f0; |
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33 import static jdk.vm.ci.sparc.SPARC.f1; |
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34 import static jdk.vm.ci.sparc.SPARC.f2; |
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35 import static jdk.vm.ci.sparc.SPARC.f3; |
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36 import static jdk.vm.ci.sparc.SPARC.f4; |
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37 import static jdk.vm.ci.sparc.SPARC.f5; |
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38 import static jdk.vm.ci.sparc.SPARC.f6; |
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39 import static jdk.vm.ci.sparc.SPARC.f7; |
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40 import static jdk.vm.ci.sparc.SPARC.g0; |
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41 import static jdk.vm.ci.sparc.SPARC.g2; |
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42 import static jdk.vm.ci.sparc.SPARC.g6; |
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43 import static jdk.vm.ci.sparc.SPARC.i0; |
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44 import static jdk.vm.ci.sparc.SPARC.i1; |
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45 import static jdk.vm.ci.sparc.SPARC.i2; |
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46 import static jdk.vm.ci.sparc.SPARC.i3; |
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47 import static jdk.vm.ci.sparc.SPARC.i4; |
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48 import static jdk.vm.ci.sparc.SPARC.i5; |
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49 import static jdk.vm.ci.sparc.SPARC.i6; |
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50 import static jdk.vm.ci.sparc.SPARC.i7; |
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51 import static jdk.vm.ci.sparc.SPARC.l0; |
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52 import static jdk.vm.ci.sparc.SPARC.l1; |
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53 import static jdk.vm.ci.sparc.SPARC.l2; |
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54 import static jdk.vm.ci.sparc.SPARC.l3; |
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55 import static jdk.vm.ci.sparc.SPARC.l4; |
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56 import static jdk.vm.ci.sparc.SPARC.l5; |
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57 import static jdk.vm.ci.sparc.SPARC.l6; |
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58 import static jdk.vm.ci.sparc.SPARC.l7; |
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59 import static jdk.vm.ci.sparc.SPARC.o0; |
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60 import static jdk.vm.ci.sparc.SPARC.o1; |
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61 import static jdk.vm.ci.sparc.SPARC.o2; |
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62 import static jdk.vm.ci.sparc.SPARC.o3; |
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63 import static jdk.vm.ci.sparc.SPARC.o4; |
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64 import static jdk.vm.ci.sparc.SPARC.o5; |
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65 import static jdk.vm.ci.sparc.SPARC.sp; |
10459 | 66 |
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67 import java.util.ArrayList; |
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68 import java.util.Arrays; |
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69 import java.util.Collections; |
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70 import java.util.HashSet; |
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71 |
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72 import jdk.vm.ci.code.Architecture; |
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73 import jdk.vm.ci.code.CallingConvention; |
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74 import jdk.vm.ci.code.CallingConvention.Type; |
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75 import jdk.vm.ci.code.Register; |
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76 import jdk.vm.ci.code.RegisterAttributes; |
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77 import jdk.vm.ci.code.RegisterConfig; |
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78 import jdk.vm.ci.code.StackSlot; |
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79 import jdk.vm.ci.code.TargetDescription; |
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80 import jdk.vm.ci.common.JVMCIError; |
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81 import jdk.vm.ci.hotspot.HotSpotCallingConventionType; |
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82 import jdk.vm.ci.hotspot.HotSpotVMConfig; |
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83 import jdk.vm.ci.meta.AllocatableValue; |
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84 import jdk.vm.ci.meta.JavaKind; |
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85 import jdk.vm.ci.meta.JavaType; |
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86 import jdk.vm.ci.meta.LIRKind; |
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87 import jdk.vm.ci.meta.PlatformKind; |
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88 import jdk.vm.ci.sparc.SPARC; |
10459 | 89 |
90 public class SPARCHotSpotRegisterConfig implements RegisterConfig { | |
91 | |
92 private final Architecture architecture; | |
93 | |
94 private final Register[] allocatable; | |
95 | |
96 private final RegisterAttributes[] attributesMap; | |
97 | |
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98 /** |
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99 * Does native code (C++ code) spill arguments in registers to the parent frame? |
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100 */ |
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101 private final boolean addNativeRegisterArgumentSlots; |
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102 |
10459 | 103 @Override |
104 public Register[] getAllocatableRegisters() { | |
105 return allocatable.clone(); | |
106 } | |
107 | |
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108 public Register[] filterAllocatableRegisters(PlatformKind kind, Register[] registers) { |
10459 | 109 ArrayList<Register> list = new ArrayList<>(); |
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110 for (Register reg : registers) { |
10459 | 111 if (architecture.canStoreValue(reg.getRegisterCategory(), kind)) { |
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112 list.add(reg); |
10459 | 113 } |
114 } | |
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115 Register[] ret = list.toArray(new Register[list.size()]); |
10459 | 116 return ret; |
117 } | |
118 | |
119 @Override | |
120 public RegisterAttributes[] getAttributesMap() { | |
121 return attributesMap.clone(); | |
122 } | |
123 | |
10792 | 124 private final Register[] cpuCallerParameterRegisters = {o0, o1, o2, o3, o4, o5}; |
125 private final Register[] cpuCalleeParameterRegisters = {i0, i1, i2, i3, i4, i5}; | |
126 | |
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127 private final Register[] fpuFloatParameterRegisters = {f0, f1, f2, f3, f4, f5, f6, f7}; |
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128 private final Register[] fpuDoubleParameterRegisters = {d0, null, d2, null, d4, null, d6, null}; |
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129 |
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130 // @formatter:off |
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131 private final Register[] callerSaveRegisters; |
11233 | 132 |
133 /** | |
134 * Registers saved by the callee. This lists all L and I registers which are saved in the | |
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135 * register window. |
11233 | 136 */ |
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137 private final Register[] calleeSaveRegisters = { |
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138 l0, l1, l2, l3, l4, l5, l6, l7, |
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139 i0, i1, i2, i3, i4, i5, i6, i7}; |
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140 // @formatter:on |
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141 |
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142 private static Register[] initAllocatable(Architecture arch, boolean reserveForHeapBase) { |
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143 Register[] allRegisters = arch.getAvailableValueRegisters(); |
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144 Register[] registers = new Register[allRegisters.length - (reserveForHeapBase ? 4 : 3)]; |
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145 |
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146 int idx = 0; |
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147 for (Register reg : allRegisters) { |
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148 if (reg.equals(sp) || reg.equals(g2) || reg.equals(g0)) { |
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149 // skip g0, stack pointer and thread register |
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150 continue; |
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151 } |
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152 if (reserveForHeapBase && reg.equals(g6)) { |
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153 // skip heap base register |
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154 continue; |
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155 } |
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156 |
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157 registers[idx++] = reg; |
10459 | 158 } |
159 | |
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160 assert idx == registers.length; |
10459 | 161 return registers; |
162 } | |
163 | |
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164 public SPARCHotSpotRegisterConfig(Architecture arch, HotSpotVMConfig config) { |
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165 this(arch, initAllocatable(arch, config.useCompressedOops), config); |
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166 } |
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167 |
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168 public SPARCHotSpotRegisterConfig(Architecture arch, Register[] allocatable, HotSpotVMConfig config) { |
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169 this.architecture = arch; |
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170 this.allocatable = allocatable.clone(); |
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171 this.addNativeRegisterArgumentSlots = config.linuxOs; |
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172 HashSet<Register> callerSaveSet = new HashSet<>(); |
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173 Collections.addAll(callerSaveSet, arch.getAvailableValueRegisters()); |
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174 for (Register cs : calleeSaveRegisters) { |
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175 callerSaveSet.remove(cs); |
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176 } |
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177 this.callerSaveRegisters = callerSaveSet.toArray(new Register[callerSaveSet.size()]); |
10459 | 178 attributesMap = RegisterAttributes.createMap(this, SPARC.allRegisters); |
179 } | |
180 | |
181 @Override | |
182 public Register[] getCallerSaveRegisters() { | |
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183 return callerSaveRegisters; |
10459 | 184 } |
185 | |
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186 public Register[] getCalleeSaveRegisters() { |
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187 return calleeSaveRegisters; |
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188 } |
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189 |
10459 | 190 @Override |
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191 public boolean areAllAllocatableRegistersCallerSaved() { |
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192 return false; |
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193 } |
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194 |
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195 @Override |
10459 | 196 public Register getRegisterForRole(int index) { |
197 throw new UnsupportedOperationException(); | |
198 } | |
199 | |
200 @Override | |
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201 public CallingConvention getCallingConvention(Type type, JavaType returnType, JavaType[] parameterTypes, TargetDescription target) { |
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202 if (type == HotSpotCallingConventionType.JavaCall || type == HotSpotCallingConventionType.NativeCall) { |
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203 return callingConvention(cpuCallerParameterRegisters, returnType, parameterTypes, (HotSpotCallingConventionType) type, target); |
10459 | 204 } |
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205 if (type == HotSpotCallingConventionType.JavaCallee) { |
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206 return callingConvention(cpuCalleeParameterRegisters, returnType, parameterTypes, (HotSpotCallingConventionType) type, target); |
10792 | 207 } |
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208 throw JVMCIError.shouldNotReachHere(); |
10459 | 209 } |
210 | |
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211 public Register[] getCallingConventionRegisters(Type type, JavaKind kind) { |
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212 switch (kind) { |
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213 case Boolean: |
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214 case Byte: |
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215 case Short: |
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216 case Char: |
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217 case Int: |
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218 case Long: |
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219 case Object: |
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220 return type == HotSpotCallingConventionType.JavaCallee ? cpuCalleeParameterRegisters : cpuCallerParameterRegisters; |
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221 case Double: |
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222 case Float: |
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223 return fpuFloatParameterRegisters; |
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224 default: |
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225 throw JVMCIError.shouldNotReachHere("Unknown JavaKind " + kind); |
10459 | 226 } |
227 } | |
228 | |
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229 private CallingConvention callingConvention(Register[] generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, HotSpotCallingConventionType type, TargetDescription target) { |
10459 | 230 AllocatableValue[] locations = new AllocatableValue[parameterTypes.length]; |
231 | |
232 int currentGeneral = 0; | |
233 int currentFloating = 0; | |
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234 int currentStackOffset = 0; |
10459 | 235 |
236 for (int i = 0; i < parameterTypes.length; i++) { | |
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237 final JavaKind kind = parameterTypes[i].getJavaKind().getStackKind(); |
10459 | 238 |
239 switch (kind) { | |
240 case Byte: | |
241 case Boolean: | |
242 case Short: | |
243 case Char: | |
244 case Int: | |
245 case Long: | |
246 case Object: | |
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247 if (currentGeneral < generalParameterRegisters.length) { |
10459 | 248 Register register = generalParameterRegisters[currentGeneral++]; |
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249 locations[i] = register.asValue(target.getLIRKind(kind)); |
10459 | 250 } |
251 break; | |
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252 case Double: |
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253 if (currentFloating < fpuFloatParameterRegisters.length) { |
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254 if (currentFloating % 2 != 0) { |
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255 // Make register number even to be a double reg |
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256 currentFloating++; |
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257 } |
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258 Register register = fpuDoubleParameterRegisters[currentFloating]; |
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259 currentFloating += 2; // Only every second is a double register |
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260 locations[i] = register.asValue(target.getLIRKind(kind)); |
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261 } |
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262 break; |
10459 | 263 case Float: |
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264 if (currentFloating < fpuFloatParameterRegisters.length) { |
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265 Register register = fpuFloatParameterRegisters[currentFloating++]; |
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266 locations[i] = register.asValue(target.getLIRKind(kind)); |
10459 | 267 } |
268 break; | |
269 default: | |
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270 throw JVMCIError.shouldNotReachHere(); |
10459 | 271 } |
272 | |
273 if (locations[i] == null) { | |
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274 LIRKind lirKind = target.getLIRKind(kind); |
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275 // Stack slot is always aligned to its size in bytes but minimum wordsize |
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276 int typeSize = lirKind.getPlatformKind().getSizeInBytes(); |
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277 currentStackOffset = roundUp(currentStackOffset, typeSize); |
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278 int slotOffset = currentStackOffset + REGISTER_SAFE_AREA_SIZE; |
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279 locations[i] = StackSlot.get(lirKind, slotOffset, !type.out); |
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280 currentStackOffset += typeSize; |
10459 | 281 } |
282 } | |
283 | |
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284 JavaKind returnKind = returnType == null ? Void : returnType.getJavaKind(); |
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285 AllocatableValue returnLocation = returnKind == Void ? ILLEGAL : getReturnRegister(returnKind, type).asValue(target.getLIRKind(returnKind.getStackKind())); |
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286 |
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287 int outArgSpillArea; |
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288 if (type == HotSpotCallingConventionType.NativeCall && addNativeRegisterArgumentSlots) { |
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289 // Space for native callee which may spill our outgoing arguments |
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290 outArgSpillArea = Math.min(locations.length, generalParameterRegisters.length) * target.wordSize; |
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291 } else { |
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292 outArgSpillArea = 0; |
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293 } |
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294 return new CallingConvention(currentStackOffset + outArgSpillArea, returnLocation, locations); |
10459 | 295 } |
296 | |
21674
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moved HotSpotTargetDescription and [AMD64|SPARC]HotSpotRegisterConfig into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
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297 private static int roundUp(int number, int mod) { |
e0b5d4fcd929
moved HotSpotTargetDescription and [AMD64|SPARC]HotSpotRegisterConfig into JVMCI namespace (JBS:GRAAL-53)
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298 return ((number + mod - 1) / mod) * mod; |
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moved HotSpotTargetDescription and [AMD64|SPARC]HotSpotRegisterConfig into JVMCI namespace (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21673
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299 } |
e0b5d4fcd929
moved HotSpotTargetDescription and [AMD64|SPARC]HotSpotRegisterConfig into JVMCI namespace (JBS:GRAAL-53)
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300 |
10459 | 301 @Override |
22536
dc1aeef79e7e
Refactoring: Rename Kind to JavaKind.
Roland Schatz <roland.schatz@oracle.com>
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22535
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changeset
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302 public Register getReturnRegister(JavaKind kind) { |
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
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22682
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303 return getReturnRegister(kind, HotSpotCallingConventionType.JavaCallee); |
10871
c3b09d69dfde
SPARC: fixes and more implementation; can now allocate objects
twisti
parents:
10854
diff
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304 } |
c3b09d69dfde
SPARC: fixes and more implementation; can now allocate objects
twisti
parents:
10854
diff
changeset
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305 |
22536
dc1aeef79e7e
Refactoring: Rename Kind to JavaKind.
Roland Schatz <roland.schatz@oracle.com>
parents:
22535
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changeset
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306 private static Register getReturnRegister(JavaKind kind, Type type) { |
10459 | 307 switch (kind) { |
308 case Boolean: | |
309 case Byte: | |
310 case Char: | |
311 case Short: | |
312 case Int: | |
313 case Long: | |
314 case Object: | |
22783
d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
Christian Wimmer <christian.wimmer@oracle.com>
parents:
22682
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315 return type == HotSpotCallingConventionType.JavaCallee ? i0 : o0; |
10459 | 316 case Float: |
20149
b1a8928fc4b9
[SPARC] Implement new instructions in assembler/enhance assertion error-message in MoveResolver
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
19534
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317 return f0; |
10459 | 318 case Double: |
20149
b1a8928fc4b9
[SPARC] Implement new instructions in assembler/enhance assertion error-message in MoveResolver
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
19534
diff
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319 return d0; |
10459 | 320 case Void: |
321 case Illegal: | |
322 return null; | |
323 default: | |
324 throw new UnsupportedOperationException("no return register for type " + kind); | |
325 } | |
326 } | |
327 | |
328 @Override | |
329 public Register getFrameRegister() { | |
330 return sp; | |
331 } | |
332 | |
333 @Override | |
334 public String toString() { | |
335 return String.format("Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n"); | |
336 } | |
337 } |