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annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/lir/FrameMap.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children f5328dda9714
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1 /*
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.max.graal.compiler.lir;
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24
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25 import static com.sun.cri.ci.CiCallingConvention.Type.*;
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26
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27 import com.oracle.max.graal.compiler.*;
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28 import com.oracle.max.graal.compiler.stub.*;
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29 import com.oracle.max.graal.compiler.util.*;
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30 import com.oracle.max.graal.cri.*;
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31 import com.sun.cri.ci.*;
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32 import com.sun.cri.ci.CiCallingConvention.Type;
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33 import com.sun.cri.ri.*;
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34
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35 /**
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36 * This class is used to build the stack frame layout for a compiled method.
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37 *
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38 * This is the format of a stack frame on an x86 (i.e. IA32 or X64) platform:
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39 * <pre>
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40 * Base Contents
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41 *
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42 * : :
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43 * | incoming overflow argument n |
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44 * | ... |
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45 * | incoming overflow argument 0 |
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46 * +--------------------------------+ Caller frame
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47 * | |
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48 * : custom area* :
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49 * | |
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50 * -------+--------------------------------+---------------------
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51 * | return address |
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52 * +--------------------------------+ ---
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53 * | | ^
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54 * : callee save area : |
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55 * | | |
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56 * +--------------------------------+ Current frame |
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57 * | alignment padding | |
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58 * +--------------------------------+ |
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59 * | ALLOCA block n | |
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60 * : ... : |
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61 * | ALLOCA block 0 | |
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62 * +--------------------------------+ --- |
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63 * | spill slot n | ^ frame
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64 * : ... : | size
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65 * | spill slot 0 | shared |
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66 * +- - - - - - - - - - - - - - - - + slot |
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67 * | outgoing overflow argument n | indexes |
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68 * | ... | | |
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69 * | outgoing overflow argument 0 | v |
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70 * +--------------------------------+ --- |
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71 * | | |
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72 * : custom area : |
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73 * %sp | | v
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74 * -------+--------------------------------+---------------- ---
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75 *
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76 * </pre>
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77 * Note that the size of stack allocated memory block (ALLOCA block) in
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78 * the frame may be greater than the size of a {@linkplain CiTarget#spillSlotSize spill slot}.
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79 * Note also that the layout of the caller frame shown only applies if the caller
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80 * was also compiled with Graal. In particular, native frames won't have
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81 * a custom area if the native ABI specifies that stack arguments are at
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82 * the bottom of the frame (e.g. System V ABI on AMD64).
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83 */
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84 public final class FrameMap {
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85
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86 public final GraalRuntime runtime;
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87 public final CiTarget target;
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88 private final RiRegisterConfig registerConfig;
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89 private final CiCallingConvention incomingArguments;
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90
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91 /**
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92 * The final frame size.
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93 * Value is only set after register allocation is complete.
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94 */
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95 private int frameSize;
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96
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97 /**
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98 * The number of spill slots allocated by the register allocator.
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99 * The value {@code -2} means that the size of outgoing argument stack slots
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100 * is not yet fixed. The value {@code -1} means that the register
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101 * allocator has started allocating spill slots and so the size of
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102 * outgoing stack slots cannot change as outgoing stack slots and
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103 * spill slots share the same slot index address space.
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104 */
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105 private int spillSlotCount;
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106
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107 /**
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108 * The amount of memory allocated within the frame for uses of stack allocated memory blocks.
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109 */
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110 private int stackBlocksSize;
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111
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112 /**
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113 * The list of stack blocks allocated in this frame.
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114 */
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115 private StackBlock stackBlocks;
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116
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117 /**
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118 * Area occupied by outgoing overflow arguments.
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119 * This value is adjusted as calling conventions for outgoing calls are retrieved.
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120 */
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121 private int outgoingSize;
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122
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123 /**
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124 * Creates a new frame map for the specified method.
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125 *
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126 * @param compilation the compilation context
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127 * @param method the outermost method being compiled
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128 */
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129 public FrameMap(GraalCompilation compilation, RiResolvedMethod method) {
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130 this.runtime = compilation.compiler.runtime;
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131 this.target = compilation.compiler.target;
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132 this.registerConfig = compilation.registerConfig;
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133 this.frameSize = -1;
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134 this.spillSlotCount = -2;
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135
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136 if (method == null) {
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137 incomingArguments = new CiCallingConvention(new CiValue[0], 0);
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138 } else {
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139 incomingArguments = registerConfig.getCallingConvention(JavaCallee, CiUtil.signatureToKinds(method), target, false);
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140 }
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141 }
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142
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parents:
diff changeset
143 /**
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144 * Adjusts the stack-size for stack-based outgoing arguments if required.
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145 *
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146 * @param cc the calling convention
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147 * @param type the type of calling convention
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148 */
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diff changeset
149 public void adjustOutgoingStackSize(CiCallingConvention cc, Type type) {
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150 assert type.out;
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151 if (frameSize != -1 && cc.stackSize != 0) {
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152 // TODO(tw): This is a special work around for Windows runtime calls that can happen and must be ignored.
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153 assert type == RuntimeCall;
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diff changeset
154 } else {
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155 if (type != RuntimeCall) {
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diff changeset
156 assert frameSize == -1 : "frame size must not yet be fixed!";
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diff changeset
157 reserveOutgoing(cc.stackSize);
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158 }
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parents:
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159 }
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parents:
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160 }
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161
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parents:
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162 /**
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163 * Gets the calling convention for the incoming arguments to the compiled method.
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164 * @return the calling convention for incoming arguments
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165 */
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166 public CiCallingConvention incomingArguments() {
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167 return incomingArguments;
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168 }
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169
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170 /**
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171 * Gets the frame size of the compiled frame.
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172 * @return the size in bytes of the frame
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173 */
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174 public int frameSize() {
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175 assert this.frameSize != -1 : "frame size not computed yet";
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176 return frameSize;
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177 }
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178
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parents:
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179 /**
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180 * Sets the frame size for this frame.
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diff changeset
181 * @param frameSize the frame size in bytes
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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182 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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183 public void setFrameSize(int frameSize) {
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184 assert this.frameSize == -1 : "should only be calculated once";
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185 this.frameSize = frameSize;
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parents:
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186 }
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187
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
188 /**
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189 * Computes the frame size for this frame, given the number of spill slots.
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190 * @param finalSpillSlotCount the number of spill slots
3733
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191 */
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diff changeset
192 public void finalizeFrame(int finalSpillSlotCount) {
3733
e233f5660da4 Added Java files from Maxine project.
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193 assert this.spillSlotCount == -1 : "can only be set once";
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diff changeset
194 assert this.frameSize == -1 : "should only be calculated once";
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diff changeset
195 assert finalSpillSlotCount >= 0 : "must be positive";
3733
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diff changeset
196
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diff changeset
197 this.spillSlotCount = finalSpillSlotCount;
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diff changeset
198 int newFrameSize = offsetToStackBlocksEnd();
3733
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199 CiCalleeSaveLayout csl = registerConfig.getCalleeSaveLayout();
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200 if (csl != null) {
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diff changeset
201 newFrameSize += csl.size;
3733
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diff changeset
202 }
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diff changeset
203 this.frameSize = target.alignFrameSize(newFrameSize);
3733
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204 }
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205
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
206 /**
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parents:
diff changeset
207 * Informs the frame map that the compiled code uses a particular compiler stub, which
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parents:
diff changeset
208 * may need stack space for outgoing arguments.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
209 *
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parents:
diff changeset
210 * @param stub the compiler stub
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parents:
diff changeset
211 */
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parents:
diff changeset
212 public void usesStub(CompilerStub stub) {
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diff changeset
213 int argsSize = stub.inArgs.length * target.spillSlotSize;
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diff changeset
214 int resultSize = stub.resultKind.isVoid() ? 0 : target.spillSlotSize;
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diff changeset
215 reserveOutgoing(Math.max(argsSize, resultSize));
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diff changeset
216 }
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217
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
218 /**
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diff changeset
219 * Computes the offset of a stack slot relative to the frame register.
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parents:
diff changeset
220 * This is also the bit index of stack slots in the reference map.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
221 *
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
222 * @param slot a stack slot
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 * @return the offset of the stack slot
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
224 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
225 public int offsetForStackSlot(CiStackSlot slot) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
226 assert frameSize >= 0 : "fame size not computed yet";
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
227 if (slot.inCallerFrame()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
228 int callerFrame = frameSize() + target.arch.returnAddressSize;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
229 int callerFrameOffset = slot.index() * target.spillSlotSize;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
230 return callerFrame + callerFrameOffset;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
231 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
232 int offset = slot.index() * target.spillSlotSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
233 assert offset <= frameSize() - target.spillSlotSize : "slot outside of frame";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
234 return offset;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
235 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
236 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
237
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
238 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
239 * Converts a stack slot into a stack address.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
240 *
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
241 * @param slot a stack slot
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
242 * @return a stack address
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
243 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
244 public CiAddress toStackAddress(CiStackSlot slot) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
245 return new CiAddress(slot.kind, registerConfig.getFrameRegister().asValue(), offsetForStackSlot(slot));
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
246 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
247
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
248 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
249 * Gets the stack address within this frame for a given reserved stack block.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
250 *
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
251 * @param stackBlock the value returned from {@link #reserveStackBlock(int, boolean)} identifying the stack block
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parents:
diff changeset
252 * @return a representation of the stack location
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
253 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
254 public CiAddress toStackAddress(StackBlock stackBlock) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
255 return new CiAddress(target.wordKind, registerConfig.getFrameRegister().asValue(target.wordKind), offsetForStackBlock(stackBlock));
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
256 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
257
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
258 public CiStackSlot toStackSlot(StackBlock stackBlock) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
259 return CiStackSlot.get(stackBlock.kind, offsetForStackBlock(stackBlock) / target.spillSlotSize);
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parents:
diff changeset
260 }
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parents:
diff changeset
261
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
262 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
263 * Reserves space for stack-based outgoing arguments.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
264 *
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
265 * @param argsSize the amount of space to reserve for stack-based outgoing arguments
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
266 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
267 public void reserveOutgoing(int argsSize) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
268 assert spillSlotCount == -2 : "cannot reserve outgoing stack slot space once register allocation has started";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
269 if (argsSize > outgoingSize) {
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parents:
diff changeset
270 outgoingSize = Util.roundUp(argsSize, target.spillSlotSize);
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parents:
diff changeset
271 }
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parents:
diff changeset
272 }
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parents:
diff changeset
273
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
274 /**
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parents:
diff changeset
275 * Encapsulates the details of a stack block reserved by a call to {@link FrameMap#reserveStackBlock(int, boolean)}.
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parents:
diff changeset
276 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
277 public static final class StackBlock extends CiValue {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
278 /**
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diff changeset
279 *
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
280 */
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diff changeset
281 private static final long serialVersionUID = -5260976274149772987L;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
282
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
283 /**
3733
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parents:
diff changeset
284 * The size of this stack block.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
285 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
286 private final int size;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
287
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
288 /**
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parents:
diff changeset
289 * The offset of this stack block within the frame space reserved for stack blocks.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
290 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
291 private final int offset;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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292
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
293 private final StackBlock next;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
294
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
295 public StackBlock(StackBlock next, int size, int offset, CiKind kind) {
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parents:
diff changeset
296 super(kind);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
297 this.next = next;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
298 this.size = size;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
299 this.offset = offset;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
300 }
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parents:
diff changeset
301
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
302 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
303 public String name() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
304 return "StackBlock " + offset;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
305 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
306
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
307 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
308 public boolean equals(Object obj) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
309 return this == obj;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
310 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
311 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
312 public boolean equalsIgnoringKind(CiValue other) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
313 return this == other;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
314 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
315 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
316 public int hashCode() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
317 return offset;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
318 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
319 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
320
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
321 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
322 * Reserves a block of memory in the frame of the method being compiled.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
323 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
324 * @param size the number of bytes to reserve
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
325 * @param refs specifies if the block is all references
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
326 * @return a descriptor of the reserved block that can be used with {@link #toStackAddress(StackBlock)} once register
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
327 * allocation is complete and the size of the frame has been {@linkplain #finalizeFrame(int) finalized}.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
328 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
329 public StackBlock reserveStackBlock(int size, boolean refs) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
330 assert size % target.wordSize == 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
331 StackBlock block = new StackBlock(stackBlocks, size, stackBlocksSize, refs ? CiKind.Object : target.wordKind);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
332 stackBlocksSize += size;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
333 stackBlocks = block;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
334 return block;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
335 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
336
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
337 private int offsetForStackBlock(StackBlock stackBlock) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
338 assert stackBlock.offset >= 0 && stackBlock.offset + stackBlock.size <= stackBlocksSize : "invalid stack block";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
339 int offset = offsetToStackBlocks() + stackBlock.offset;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
340 assert offset <= (frameSize() - stackBlock.size) : "stack block outside of frame";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
341 return offset;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
342 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
343
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
344 private int offsetToSpillArea() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
345 return outgoingSize + customAreaSize();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
346 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
347
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
348 private int offsetToSpillEnd() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
349 return offsetToSpillArea() + spillSlotCount * target.spillSlotSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
350 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
351
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
352 public int customAreaSize() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
353 return runtime.getCustomStackAreaSize();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
354 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
355
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
356 public static int offsetToCustomArea() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
357 return 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
358 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
359
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
360 private int offsetToStackBlocks() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
361 return offsetToSpillEnd();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
362 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
363
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
364 private int offsetToStackBlocksEnd() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
365 return offsetToStackBlocks() + stackBlocksSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
366 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
367
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
368 public int offsetToCalleeSaveAreaStart() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
369 CiCalleeSaveLayout csl = registerConfig.getCalleeSaveLayout();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
370 if (csl != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
371 return offsetToCalleeSaveAreaEnd() - csl.size;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
372 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
373 return offsetToCalleeSaveAreaEnd();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
374 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
375 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
376
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
377 public int offsetToCalleeSaveAreaEnd() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
378 return frameSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
379 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
380
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
381 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
382 * Gets the index of the first available spill slot relative to the base of the frame.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
383 * After this call, no further outgoing stack slots can be {@linkplain #reserveOutgoing(int) reserved}.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
384 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
385 * @return the index of the first available spill slot
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
386 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
387 public int initialSpillSlot() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
388 if (spillSlotCount == -2) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
389 spillSlotCount = -1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
390 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
391 return (outgoingSize + customAreaSize()) / target.spillSlotSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
392 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
393
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
394 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
395 * Initializes a ref map that covers all the slots in the frame.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
396 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
397 public CiBitMap initFrameRefMap() {
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
398 int frameWords = frameSize() / target.spillSlotSize;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
399 CiBitMap frameRefMap = new CiBitMap(frameWords);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
400 for (StackBlock sb = stackBlocks; sb != null; sb = sb.next) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
401 if (sb.kind == CiKind.Object) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
402 int firstSlot = offsetForStackBlock(sb) / target.wordSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
403 int words = sb.size / target.wordSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
404 for (int i = 0; i < words; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
405 frameRefMap.set(firstSlot + i);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
406 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
407 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
408 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
409 return frameRefMap;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
410 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
411 }