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comparison graal/GraalCompiler/src/com/sun/c1x/lir/LIRBlock.java @ 2718:c1ce2a53d6c3

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Attempt to remove dependency between backend and BlockBegin.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 19 May 2011 16:05:42 +0200
parents 4272b7af2d17
children 127db58b044e
comparison
equal deleted inserted replaced
2717:bd85cf08720a 2718:c1ce2a53d6c3
20 * or visit www.oracle.com if you need additional information or have any 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 */ 22 */
23 package com.sun.c1x.lir; 23 package com.sun.c1x.lir;
24 24
25 import java.util.*;
26
25 import com.oracle.max.asm.*; 27 import com.oracle.max.asm.*;
26 import com.sun.c1x.alloc.*; 28 import com.sun.c1x.alloc.*;
29 import com.sun.c1x.debug.*;
30 import com.sun.c1x.ir.*;
31 import com.sun.c1x.value.*;
27 import com.sun.cri.ci.*; 32 import com.sun.cri.ci.*;
28 33
29 /** 34 /**
30 * The {@code LIRBlock} class definition. 35 * The {@code LIRBlock} class definition.
31 */ 36 */
32 public final class LIRBlock { 37 public final class LIRBlock {
33 38
34 public LIRBlock() {
35 loopIndex = -1;
36 }
37
38 public final Label label = new Label(); 39 public final Label label = new Label();
39 private LIRList lir; 40 private LIRList lir;
41 private final int blockID;
42 private List<Instruction> instructions = new ArrayList<Instruction>(4);
43 private List<LIRBlock> predecessors = new ArrayList<LIRBlock>();
44 private List<LIRBlock> successors = new ArrayList<LIRBlock>();
40 45
41 /** 46 /**
42 * Bit map specifying which {@linkplain OperandPool operands} are live upon entry to this block. 47 * Bit map specifying which {@linkplain OperandPool operands} are live upon entry to this block.
43 * These are values used in this block or any of its successors where such value are not defined 48 * These are values used in this block or any of its successors where such value are not defined
44 * in this block. 49 * in this block.
69 74
70 private int firstLirInstructionID; 75 private int firstLirInstructionID;
71 private int lastLirInstructionID; 76 private int lastLirInstructionID;
72 public int blockEntryPco; 77 public int blockEntryPco;
73 78
79 public LIRBlock(int blockID) {
80 this.blockID = blockID;
81 loopIndex = -1;
82 }
83
84 public List<Instruction> getInstructions() {
85 return instructions;
86 }
87
74 public int firstLirInstructionId() { 88 public int firstLirInstructionId() {
75 return firstLirInstructionID; 89 return firstLirInstructionID;
76 } 90 }
77 91
78 public void setFirstLirInstructionId(int firstLirInstructionId) { 92 public void setFirstLirInstructionId(int firstLirInstructionId) {
95 } 109 }
96 110
97 public void setLir(LIRList lir) { 111 public void setLir(LIRList lir) {
98 this.lir = lir; 112 this.lir = lir;
99 } 113 }
114
115 public void setBlockEntryPco(int codePos) {
116 this.blockEntryPco = codePos;
117 }
118
119 public void printWithoutPhis(LogStream out) {
120 out.println("LIR Block " + blockID());
121 }
122
123 public int blockID() {
124 return blockID;
125 }
126
127 public int numberOfPreds() {
128 return predecessors.size();
129 }
130
131 public int numberOfSux() {
132 return successors.size();
133 }
134
135 public boolean isPredecessor(LIRBlock block) {
136 return predecessors.contains(block);
137 }
138
139 public LIRBlock predAt(int i) {
140 return predecessors.get(i);
141 }
142
143 public LIRBlock suxAt(int i) {
144 return successors.get(i);
145 }
146
147 public List<LIRBlock> blockSuccessors() {
148 return successors;
149 }
150
151 public List<LIRBlock> blockPredecessors() {
152 return predecessors;
153 }
154
155 public int loopDepth() {
156 // TODO(tw): Set correct loop depth.
157 return 0;
158 }
159
160 public int loopIndex() {
161 // TODO(tw): Set correct loop index.
162 return -1;
163 }
164
165 public Label label() {
166 return label;
167 }
168
169 private int linearScanNumber = -1;
170 private boolean linearScanLoopEnd;
171 private boolean linearScanLoopHeader;
172 private FrameState stateBefore;
173
174 public void setLinearScanNumber(int v) {
175 linearScanNumber = v;
176 }
177
178 public int linearScanNumber() {
179 return linearScanNumber;
180 }
181
182 public void setLinearScanLoopEnd() {
183 linearScanLoopEnd = true;
184 }
185
186 public boolean isLinearScanLoopEnd() {
187 return linearScanLoopEnd;
188 }
189
190 public void setLinearScanLoopHeader() {
191 this.linearScanLoopHeader = true;
192 }
193
194 public boolean isLinearScanLoopHeader() {
195 return linearScanLoopHeader;
196 }
197
198 public void setStateBefore(FrameState stateBefore) {
199 this.stateBefore = stateBefore;
200 }
201
202 public FrameState stateBefore() {
203 return stateBefore;
204 }
100 } 205 }