001
002 /*
003 * THIS FILE IS MACHINE_GENERATED. DO NOT EDIT.
004 * See InstructionFormats.template, InstructionFormatList.dat,
005 * OperatorList.dat, etc.
006 */
007
008 package org.jikesrvm.compilers.opt.ir;
009
010 import org.jikesrvm.Configuration;
011 import org.jikesrvm.compilers.opt.ir.operand.ia32.IA32ConditionOperand; //NOPMD
012 import org.jikesrvm.compilers.opt.ir.operand.*;
013
014 /**
015 * The OsrBarrier InstructionFormat class.
016 *
017 * The header comment for {@link Instruction} contains
018 * an explanation of the role of InstructionFormats in the
019 * opt compiler's IR.
020 */
021 @SuppressWarnings("unused") // Machine generated code is never 100% clean
022 public final class OsrBarrier extends InstructionFormat {
023 /**
024 * InstructionFormat identification method for OsrBarrier.
025 * @param i an instruction
026 * @return <code>true</code> if the InstructionFormat of the argument
027 * instruction is OsrBarrier or <code>false</code>
028 * if it is not.
029 */
030 public static boolean conforms(Instruction i) {
031 return conforms(i.operator);
032 }
033 /**
034 * InstructionFormat identification method for OsrBarrier.
035 * @param o an instruction
036 * @return <code>true</code> if the InstructionFormat of the argument
037 * operator is OsrBarrier or <code>false</code>
038 * if it is not.
039 */
040 public static boolean conforms(Operator o) {
041 return o.format == OsrBarrier_format;
042 }
043
044 /**
045 * Get the operand called TypeInfo from the
046 * argument instruction. Note that the returned operand
047 * will still point to its containing instruction.
048 * @param i the instruction to fetch the operand from
049 * @return the operand called TypeInfo
050 */
051 public static OsrTypeInfoOperand getTypeInfo(Instruction i) {
052 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
053 return (OsrTypeInfoOperand) i.getOperand(0);
054 }
055 /**
056 * Get the operand called TypeInfo from the argument
057 * instruction clearing its instruction pointer. The returned
058 * operand will not point to any containing instruction.
059 * @param i the instruction to fetch the operand from
060 * @return the operand called TypeInfo
061 */
062 public static OsrTypeInfoOperand getClearTypeInfo(Instruction i) {
063 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
064 return (OsrTypeInfoOperand) i.getClearOperand(0);
065 }
066 /**
067 * Set the operand called TypeInfo in the argument
068 * instruction to the argument operand. The operand will
069 * now point to the argument instruction as its containing
070 * instruction.
071 * @param i the instruction in which to store the operand
072 * @param TypeInfo the operand to store
073 */
074 public static void setTypeInfo(Instruction i, OsrTypeInfoOperand TypeInfo) {
075 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
076 i.putOperand(0, TypeInfo);
077 }
078 /**
079 * Return the index of the operand called TypeInfo
080 * in the argument instruction.
081 * @param i the instruction to access.
082 * @return the index of the operand called TypeInfo
083 * in the argument instruction
084 */
085 public static int indexOfTypeInfo(Instruction i) {
086 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
087 return 0;
088 }
089 /**
090 * Does the argument instruction have a non-null
091 * operand named TypeInfo?
092 * @param i the instruction to access.
093 * @return <code>true</code> if the instruction has an non-null
094 * operand named TypeInfo or <code>false</code>
095 * if it does not.
096 */
097 public static boolean hasTypeInfo(Instruction i) {
098 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
099 return i.getOperand(0) != null;
100 }
101
102 /**
103 * Get the k'th operand called Element from the
104 * argument instruction. Note that the returned operand
105 * will still point to its containing instruction.
106 * @param i the instruction to fetch the operand from
107 * @param k the index of the operand
108 * @return the k'th operand called Element
109 */
110 public static Operand getElement(Instruction i, int k) {
111 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
112 return (Operand) i.getOperand(1+k);
113 }
114 /**
115 * Get the k'th operand called Element from the argument
116 * instruction clearing its instruction pointer. The returned
117 * operand will not point to any containing instruction.
118 * @param i the instruction to fetch the operand from
119 * @param k the index of the operand
120 * @return the k'th operand called Element
121 */
122 public static Operand getClearElement(Instruction i, int k) {
123 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
124 return (Operand) i.getClearOperand(1+k);
125 }
126 /**
127 * Set the k'th operand called Element in the argument
128 * instruction to the argument operand. The operand will
129 * now point to the argument instruction as its containing
130 * instruction.
131 * @param i the instruction in which to store the operand
132 * @param k the index of the operand
133 * @param o the operand to store
134 */
135 public static void setElement(Instruction i, int k, Operand o) {
136 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
137 i.putOperand(1+k, o);
138 }
139 /**
140 * Return the index of the k'th operand called Element
141 * in the argument instruction.
142 * @param i the instruction to access.
143 * @param k the index of the operand.
144 * @return the index of the k'th operand called Element
145 * in the argument instruction
146 */
147 public static int indexOfElement(Instruction i, int k) {
148 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
149 return 1+k;
150 }
151 /**
152 * Does the argument instruction have a non-null
153 * k'th operand named Element?
154 * @param i the instruction to access.
155 * @param k the index of the operand.
156 * @return <code>true</code> if the instruction has an non-null
157 * k'th operand named Element or <code>false</code>
158 * if it does not.
159 */
160 public static boolean hasElement(Instruction i, int k) {
161 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
162 return i.getOperand(1+k) != null;
163 }
164
165 /**
166 * Return the index of the first operand called Element
167 * in the argument instruction.
168 * @param i the instruction to access.
169 * @return the index of the first operand called Element
170 * in the argument instruction
171 */
172 public static int indexOfElements(Instruction i)
173 {
174 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
175 return 1;
176 }
177 /**
178 * Does the argument instruction have any operands
179 * named Element?
180 * @param i the instruction to access.
181 * @return <code>true</code> if the instruction has operands
182 * named Element or <code>false</code> if it does not.
183 */
184 public static boolean hasElements(Instruction i)
185 {
186 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
187 return i.getNumberOfOperands()-1 > 0 && i.getOperand(1) != null;
188 }
189
190 /**
191 * How many variable-length operands called Elements
192 * does the argument instruction have?
193 * @param i the instruction to access
194 * @return the number of operands called Elements the instruction has
195 */
196 public static int getNumberOfElements(Instruction i)
197 {
198 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
199 return i.getNumberOfOperands()-1;
200 }
201
202 /**
203 * Change the number of Elements that may be stored in
204 * the argument instruction to numVarOps.
205 * @param i the instruction to access
206 * @param numVarOps the new number of variable operands called Elements
207 * that may be stored in the instruction
208 */
209 public static void resizeNumberOfElements(Instruction i, int numVarOps)
210 {
211 if (Configuration.ExtremeAssertions && !conforms(i)) fail(i, "OsrBarrier");
212 if (1+numVarOps>MIN_OPERAND_ARRAY_LENGTH)
213 i.resizeNumberOfOperands(1+numVarOps);
214 else
215 for (int j = 1+numVarOps; j < MIN_OPERAND_ARRAY_LENGTH; j++)
216 i.putOperand(j, null);
217 }
218
219 /**
220 * Create an instruction of the OsrBarrier instruction format.
221 * @param o the instruction's operator
222 * @param TypeInfo the instruction's TypeInfo operand
223 * @param numVarOps the number of variable length operands that
224 * will be stored in the insruction.
225 * @return the newly created OsrBarrier instruction
226 */
227 public static Instruction create(Operator o
228 , OsrTypeInfoOperand TypeInfo
229 , int numVarOps
230 )
231 {
232 if (Configuration.ExtremeAssertions && !conforms(o)) fail(o, "OsrBarrier");
233 Instruction i = new Instruction(o, Math.max(1+numVarOps, MIN_OPERAND_ARRAY_LENGTH));
234 i.putOperand(0, TypeInfo);
235 return i;
236 }
237
238 /**
239 * Mutate the argument instruction into an instruction of the
240 * OsrBarrier instruction format having the specified
241 * operator and operands.
242 * @param i the instruction to mutate
243 * @param o the instruction's operator
244 * @param TypeInfo the instruction's TypeInfo operand
245 * @param numVarOps the number of variable length operands that
246 * will be stored in the insruction.
247 * @return the mutated instruction
248 */
249 public static Instruction mutate(Instruction i, Operator o
250 , OsrTypeInfoOperand TypeInfo
251 , int numVarOps
252 )
253 {
254 if (Configuration.ExtremeAssertions && !conforms(o)) fail(o, "OsrBarrier");
255 if (1+numVarOps>MIN_OPERAND_ARRAY_LENGTH)
256 i.resizeNumberOfOperands(1+numVarOps);
257
258 i.operator = o;
259 i.putOperand(0, TypeInfo);
260 return i;
261 }
262 }
263