Mercurial > hg > graal-jvmci-8
comparison graal/GraalCompiler/src/com/sun/c1x/ir/Instruction.java @ 2541:0f9eeb15e636
More Value.Flag clean up.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 20:58:01 +0200 |
parents | 16b9a8b5ad39 |
children | 768d77a1c7af |
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2540:3fc322165071 | 2541:0f9eeb15e636 |
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37 * control flow operators, phi statements, method calls, the start of basic blocks, and | 37 * control flow operators, phi statements, method calls, the start of basic blocks, and |
38 * the end of basic blocks. | 38 * the end of basic blocks. |
39 * | 39 * |
40 * Instruction nodes are chained together in a basic block through the embedded | 40 * Instruction nodes are chained together in a basic block through the embedded |
41 * {@link Instruction#next} field. An Instruction may also have a list of {@link ExceptionHandler}s. | 41 * {@link Instruction#next} field. An Instruction may also have a list of {@link ExceptionHandler}s. |
42 * | |
43 * | |
44 * @author Ben L. Titzer | |
45 */ | 42 */ |
46 public abstract class Instruction extends Value { | 43 public abstract class Instruction extends Value { |
47 | 44 |
48 public static final int INVOCATION_ENTRY_BCI = -1; // XXX: not currently used | |
49 public static final int SYNCHRONIZATION_ENTRY_BCI = -1; | 45 public static final int SYNCHRONIZATION_ENTRY_BCI = -1; |
50 | 46 |
51 /** | 47 /** |
52 * Index of bytecode that generated this node when appended in a basic block. | 48 * Index of bytecode that generated this node when appended in a basic block. |
53 * Negative values indicate special cases. | 49 * Negative values indicate special cases. |
218 public final String name() { | 214 public final String name() { |
219 return getClass().getSimpleName(); | 215 return getClass().getSimpleName(); |
220 } | 216 } |
221 | 217 |
222 /** | 218 /** |
223 * Tests whether this instruction can trap. This is conservative; it does not take | |
224 * into account analysis results that may eliminate the possibility of this | |
225 * instruction from trapping. | |
226 * | |
227 * @return {@code true} if this instruction can cause a trap. | |
228 */ | |
229 public boolean canTrap() { | |
230 return false; | |
231 } | |
232 | |
233 /** | |
234 * Apply the specified closure to all the values of this instruction, including | 219 * Apply the specified closure to all the values of this instruction, including |
235 * input values, state values, and other values. | 220 * input values, state values, and other values. |
236 * @param closure the closure to apply | 221 * @param closure the closure to apply |
237 */ | 222 */ |
238 public final void allValuesDo(ValueClosure closure) { | 223 public final void allValuesDo(ValueClosure closure) { |