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comparison graal/GraalCompiler/src/com/sun/c1x/ir/StateSplit.java @ 2634:4dd0573f510b

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FrameState fixes.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 11 May 2011 10:52:37 +0200
parents 569228710be8
children 440ceca8e3d7
comparison
equal deleted inserted replaced
2633:721a45190d6d 2634:4dd0573f510b
30 * The {@code StateSplit} class is the abstract base class of all instructions 30 * The {@code StateSplit} class is the abstract base class of all instructions
31 * that store an immutable copy of the frame state. 31 * that store an immutable copy of the frame state.
32 */ 32 */
33 public abstract class StateSplit extends Instruction { 33 public abstract class StateSplit extends Instruction {
34 34
35 private static final int INPUT_COUNT = 1; 35 private static final int INPUT_COUNT = 2;
36 private static final int INPUT_STATE_AFTER = 0; 36 private static final int INPUT_STATE_AFTER = 0;
37 private static final int INPUT_STATE_BEFORE = 1;
37 38
38 private static final int SUCCESSOR_COUNT = 0; 39 private static final int SUCCESSOR_COUNT = 0;
39 40
40 @Override 41 @Override
41 protected int inputCount() { 42 protected int inputCount() {
54 public FrameState stateAfter() { 55 public FrameState stateAfter() {
55 return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_AFTER); 56 return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_AFTER);
56 } 57 }
57 58
58 public FrameState setStateAfter(FrameState n) { 59 public FrameState setStateAfter(FrameState n) {
60 if (n != null && this instanceof BlockBegin) {
61 Exception e = new Exception();
62 e.printStackTrace();
63 }
59 return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_AFTER, n); 64 return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_AFTER, n);
65 }
66
67 /**
68 * The state for this instruction.
69 */
70 public FrameState stateBefore() {
71 return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_BEFORE);
72 }
73
74 public FrameState setStateBefore(FrameState n) {
75 return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_BEFORE, n);
60 } 76 }
61 77
62 /** 78 /**
63 * Creates a new state split with the specified value type. 79 * Creates a new state split with the specified value type.
64 * @param kind the type of the value that this instruction produces 80 * @param kind the type of the value that this instruction produces