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comparison graal/GraalCompiler/src/com/sun/c1x/ir/StateSplit.java @ 2730:027adfafd47e

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first batch of GraphBuilder changes to remove dependencies on BlockBegin
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 19 May 2011 17:24:23 +0200
parents 7ed72769d51a
children
comparison
equal deleted inserted replaced
2729:108adba3345e 2730:027adfafd47e
54 public FrameState stateBefore() { 54 public FrameState stateBefore() {
55 return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_BEFORE); 55 return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_BEFORE);
56 } 56 }
57 57
58 public FrameState setStateBefore(FrameState n) { 58 public FrameState setStateBefore(FrameState n) {
59 return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_BEFORE, n); 59 FrameState oldState = stateBefore();
60 try {
61 return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_BEFORE, n);
62 } finally {
63 if (oldState != n && oldState != null) {
64 oldState.delete();
65 }
66 }
60 } 67 }
61 68
62 /** 69 /**
63 * The state for this instruction. 70 * The state for this instruction.
64 */ 71 */