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comparison graal/GraalCompiler/src/com/sun/c1x/value/FrameState.java @ 2666:6ca76b891d31

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duplicateModified helper method
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 12 May 2011 11:00:31 +0200
parents 8c02ca1e9eb1
children 32e8315bb6e4
comparison
equal deleted inserted replaced
2665:b101099de4c8 2666:6ca76b891d31
84 this(bci, locals.length, stackSize, locks.size(), graph); 84 this(bci, locals.length, stackSize, locks.size(), graph);
85 for (int i = 0; i < locals.length; i++) { 85 for (int i = 0; i < locals.length; i++) {
86 inputs().set(i, locals[i]); 86 inputs().set(i, locals[i]);
87 } 87 }
88 for (int i = 0; i < stackSize; i++) { 88 for (int i = 0; i < stackSize; i++) {
89 inputs().set(i + localsSize, stack[i]); 89 inputs().set(localsSize + i, stack[i]);
90 } 90 }
91 for (int i = 0; i < locks.size(); i++) { 91 for (int i = 0; i < locks.size(); i++) {
92 inputs().set(locals.length + stackSize + i, locks.get(i)); 92 inputs().set(locals.length + stackSize + i, locks.get(i));
93 } 93 }
94 } 94 }
107 */ 107 */
108 public FrameState duplicateWithEmptyStack() { 108 public FrameState duplicateWithEmptyStack() {
109 FrameState other = new FrameState(bci, localsSize, 0, locksSize(), graph()); 109 FrameState other = new FrameState(bci, localsSize, 0, locksSize(), graph());
110 for (int i = 0; i < localsSize; i++) { 110 for (int i = 0; i < localsSize; i++) {
111 other.inputs().set(i, localAt(i)); 111 other.inputs().set(i, localAt(i));
112 }
113 for (int i = 0; i < locksSize; i++) {
114 other.inputs().set(localsSize + i, lockAt(i));
115 }
116 return other;
117 }
118
119 /**
120 * Creates a copy of this frame state with one stack element of type popKind popped from the stack and the
121 * values in pushedValues pushed on the stack.
122 */
123 public FrameState duplicateModified(int bci, CiKind popKind, Value... pushedValues) {
124 int popSlots = popKind.sizeInSlots();
125 int pushSlots = 0;
126 for (Value v : pushedValues) {
127 pushSlots += v.kind.sizeInSlots();
128 }
129 FrameState other = new FrameState(bci, localsSize, stackSize - popSlots + pushSlots, locksSize(), graph());
130 for (int i = 0; i < localsSize; i++) {
131 other.inputs().set(i, localAt(i));
132 }
133 for (int i = 0; i < stackSize - popSlots; i++) {
134 other.inputs().set(localsSize + i, stackAt(i));
135 }
136 int slot = stackSize - popSlots;
137 for (Value v : pushedValues) {
138 assert v.kind.sizeInSlots() > 0;
139 if (v.kind.sizeInSlots() == 2) {
140 other.inputs().set(localsSize + slot++, null);
141 }
142 other.inputs().set(localsSize + slot++, v);
112 } 143 }
113 for (int i = 0; i < locksSize; i++) { 144 for (int i = 0; i < locksSize; i++) {
114 other.inputs().set(localsSize + i, lockAt(i)); 145 other.inputs().set(localsSize + i, lockAt(i));
115 } 146 }
116 return other; 147 return other;