List of usage examples for org.objectweb.asm Opcodes IRETURN
int IRETURN
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From source file:edu.illinois.nondex.instr.WeakHashMapShufflingAdder.java
License:Open Source License
public void addHasNext() { MethodVisitor mv = super.visitMethod(Opcodes.ACC_PUBLIC, "hasNext", "()Z", null, null); mv.visitCode();//from www . j a v a2 s .c om mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "java/util/WeakHashMap$HashIterator", "iter", "Ljava/util/Iterator;"); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true); mv.visitInsn(Opcodes.IRETURN); mv.visitMaxs(1, 1); mv.visitEnd(); }
From source file:edu.mit.streamjit.util.bytecode.MethodResolver.java
License:Open Source License
private void findBlockBoundaries() { InsnList insns = methodNode.instructions; //We find the indices of any block-ending instruction and of any jump //target, sort, remove duplicates, then use pairs to define blocks. Note //these are end-exclusive indices, thus one after the block-enders, but //right on the jump targets (they're one-past-the-end of the preceding //block)./*from w ww . j a v a 2 s .c om*/ List<Integer> indices = new ArrayList<>(); indices.add(0); for (int i = 0; i < insns.size(); ++i) { AbstractInsnNode insn = insns.get(i); int opcode = insn.getOpcode(); //Terminator opcodes end blocks. if (insn instanceof JumpInsnNode || insn instanceof LookupSwitchInsnNode || insn instanceof TableSwitchInsnNode || opcode == Opcodes.ATHROW || opcode == Opcodes.IRETURN || opcode == Opcodes.LRETURN || opcode == Opcodes.FRETURN || opcode == Opcodes.DRETURN || opcode == Opcodes.ARETURN || opcode == Opcodes.RETURN) { indices.add(i + 1); } //Jump targets of this instruction end blocks. if (insn instanceof JumpInsnNode) indices.add(insns.indexOf(((JumpInsnNode) insn).label)); else if (insn instanceof LookupSwitchInsnNode) { indices.add(insns.indexOf(((LookupSwitchInsnNode) insn).dflt)); for (Object label : ((LookupSwitchInsnNode) insn).labels) indices.add(insns.indexOf((LabelNode) label)); } else if (insn instanceof TableSwitchInsnNode) { indices.add(insns.indexOf(((TableSwitchInsnNode) insn).dflt)); for (Object label : ((TableSwitchInsnNode) insn).labels) indices.add(insns.indexOf((LabelNode) label)); } //While we're scanning the instructions, make the UninitializedValue //values for 'new' opcodes. if (opcode == Opcodes.NEW) { Klass k = getKlassByInternalName(((TypeInsnNode) insn).desc); ReferenceType t = typeFactory.getReferenceType(k); newValues.put(insn, new UninitializedValue(t, "new" + (counter++))); } } //Remove duplicates and sort via TreeSet. indices = new ArrayList<>(new TreeSet<>(indices)); for (int i = 1; i < indices.size(); ++i) blocks.add(new BBInfo(indices.get(i - 1), indices.get(i), i - 1)); }
From source file:edu.mit.streamjit.util.bytecode.MethodResolver.java
License:Open Source License
private void interpret(InsnNode insn, FrameState frame, BBInfo block) { ReturnType returnType = block.block.getParent().getType().getReturnType(); switch (insn.getOpcode()) { case Opcodes.NOP: break;//from w w w . ja v a 2 s . c om //<editor-fold defaultstate="collapsed" desc="Stack manipulation opcodes (pop, dup, swap)"> case Opcodes.POP: assert frame.stack.peek().getType().getCategory() == 1; frame.stack.pop(); break; case Opcodes.POP2: final int[][][] pop2Permutations = { { { 1, 1 }, {} }, { { 2 }, {} } }; conditionallyPermute(frame, pop2Permutations); break; case Opcodes.DUP: final int[][][] dupPermutations = { { { 1 }, { 1, 1 } } }; conditionallyPermute(frame, dupPermutations); break; case Opcodes.DUP_X1: final int[][][] dup_x1Permutations = { { { 1, 1 }, { 1, 2, 1 } } }; conditionallyPermute(frame, dup_x1Permutations); break; case Opcodes.DUP_X2: final int[][][] dup_x2Permutations = { { { 1, 1, 1 }, { 1, 3, 2, 1 } }, { { 1, 2 }, { 1, 2, 1 } } }; conditionallyPermute(frame, dup_x2Permutations); break; case Opcodes.DUP2: final int[][][] dup2Permutations = { { { 1, 1 }, { 2, 1, 2, 1 } }, { { 2 }, { 1, 1 } } }; conditionallyPermute(frame, dup2Permutations); break; case Opcodes.DUP2_X1: final int[][][] dup2_x1Permutations = { { { 1, 1, 1 }, { 2, 1, 3, 2, 1 } }, { { 2, 1 }, { 1, 2, 1 } } }; conditionallyPermute(frame, dup2_x1Permutations); break; case Opcodes.DUP2_X2: final int[][][] dup2_x2Permutations = { { { 1, 1, 1, 1 }, { 2, 1, 4, 3, 2, 1 } }, { { 2, 1, 1 }, { 1, 3, 2, 1 } }, { { 3, 2, 1 }, { 2, 1, 3, 2, 1 } }, { { 2, 2 }, { 1, 2, 1 } } }; conditionallyPermute(frame, dup2_x2Permutations); break; case Opcodes.SWAP: final int[][][] swapPermutations = { { { 1, 1 }, { 1, 2 } } }; conditionallyPermute(frame, swapPermutations); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Constant-stacking opcodes (iconst_0, etc.; see also bipush, sipush)"> case Opcodes.ACONST_NULL: frame.stack.push(module.constants().getNullConstant()); break; case Opcodes.ICONST_M1: frame.stack.push(module.constants().getSmallestIntConstant(-1)); break; case Opcodes.ICONST_0: frame.stack.push(module.constants().getSmallestIntConstant(0)); break; case Opcodes.ICONST_1: frame.stack.push(module.constants().getSmallestIntConstant(1)); break; case Opcodes.ICONST_2: frame.stack.push(module.constants().getSmallestIntConstant(2)); break; case Opcodes.ICONST_3: frame.stack.push(module.constants().getSmallestIntConstant(3)); break; case Opcodes.ICONST_4: frame.stack.push(module.constants().getSmallestIntConstant(4)); break; case Opcodes.ICONST_5: frame.stack.push(module.constants().getSmallestIntConstant(5)); break; case Opcodes.LCONST_0: frame.stack.push(module.constants().getConstant(0L)); break; case Opcodes.LCONST_1: frame.stack.push(module.constants().getConstant(1L)); break; case Opcodes.FCONST_0: frame.stack.push(module.constants().getConstant(0f)); break; case Opcodes.FCONST_1: frame.stack.push(module.constants().getConstant(1f)); break; case Opcodes.FCONST_2: frame.stack.push(module.constants().getConstant(2f)); break; case Opcodes.DCONST_0: frame.stack.push(module.constants().getConstant(0d)); break; case Opcodes.DCONST_1: frame.stack.push(module.constants().getConstant(1d)); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Return opcodes"> case Opcodes.IRETURN: assert returnType.isSubtypeOf(typeFactory.getType(int.class)); assert frame.stack.peek().getType().isSubtypeOf(returnType); block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop())); break; case Opcodes.LRETURN: assert returnType.isSubtypeOf(typeFactory.getType(long.class)); assert frame.stack.peek().getType().isSubtypeOf(returnType); block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop())); break; case Opcodes.FRETURN: assert returnType.isSubtypeOf(typeFactory.getType(float.class)); assert frame.stack.peek().getType().isSubtypeOf(returnType); block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop())); break; case Opcodes.DRETURN: assert returnType.isSubtypeOf(typeFactory.getType(double.class)); assert frame.stack.peek().getType().isSubtypeOf(returnType); block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop())); break; case Opcodes.ARETURN: assert returnType.isSubtypeOf(typeFactory.getType(Object.class)); assert frame.stack.peek().getType().isSubtypeOf(returnType); block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop())); break; case Opcodes.RETURN: assert returnType instanceof VoidType || method.isConstructor(); block.block.instructions().add(new ReturnInst(typeFactory.getVoidType())); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Unary math opcodes (negation)"> //Unary minus is rendered as a multiplication by -1. (The obvious //other choice, subtraction from 0, is not equivalent for floats and //doubles due to negative zero.) case Opcodes.INEG: frame.stack.push(module.constants().getSmallestIntConstant(-1)); binary(BinaryInst.Operation.MUL, frame, block); break; case Opcodes.LNEG: frame.stack.push(module.constants().getConstant(-1L)); binary(BinaryInst.Operation.MUL, frame, block); break; case Opcodes.FNEG: frame.stack.push(module.constants().getConstant(-1f)); binary(BinaryInst.Operation.MUL, frame, block); break; case Opcodes.DNEG: frame.stack.push(module.constants().getConstant(-1d)); binary(BinaryInst.Operation.MUL, frame, block); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Binary math opcodes"> case Opcodes.IADD: case Opcodes.LADD: case Opcodes.FADD: case Opcodes.DADD: binary(BinaryInst.Operation.ADD, frame, block); break; case Opcodes.ISUB: case Opcodes.LSUB: case Opcodes.FSUB: case Opcodes.DSUB: binary(BinaryInst.Operation.SUB, frame, block); break; case Opcodes.IMUL: case Opcodes.LMUL: case Opcodes.FMUL: case Opcodes.DMUL: binary(BinaryInst.Operation.MUL, frame, block); break; case Opcodes.IDIV: case Opcodes.LDIV: case Opcodes.FDIV: case Opcodes.DDIV: binary(BinaryInst.Operation.DIV, frame, block); break; case Opcodes.IREM: case Opcodes.LREM: case Opcodes.FREM: case Opcodes.DREM: binary(BinaryInst.Operation.REM, frame, block); break; case Opcodes.ISHL: case Opcodes.LSHL: binary(BinaryInst.Operation.SHL, frame, block); break; case Opcodes.ISHR: case Opcodes.LSHR: binary(BinaryInst.Operation.SHR, frame, block); break; case Opcodes.IUSHR: case Opcodes.LUSHR: binary(BinaryInst.Operation.USHR, frame, block); break; case Opcodes.IAND: case Opcodes.LAND: binary(BinaryInst.Operation.AND, frame, block); break; case Opcodes.IOR: case Opcodes.LOR: binary(BinaryInst.Operation.OR, frame, block); break; case Opcodes.IXOR: case Opcodes.LXOR: binary(BinaryInst.Operation.XOR, frame, block); break; case Opcodes.LCMP: case Opcodes.FCMPL: case Opcodes.DCMPL: binary(BinaryInst.Operation.CMP, frame, block); break; case Opcodes.FCMPG: case Opcodes.DCMPG: binary(BinaryInst.Operation.CMPG, frame, block); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Primitive casts"> case Opcodes.I2L: cast(int.class, long.class, frame, block); break; case Opcodes.I2F: cast(int.class, float.class, frame, block); break; case Opcodes.I2D: cast(int.class, double.class, frame, block); break; case Opcodes.L2I: cast(long.class, int.class, frame, block); break; case Opcodes.L2F: cast(long.class, float.class, frame, block); break; case Opcodes.L2D: cast(long.class, double.class, frame, block); break; case Opcodes.F2I: cast(float.class, int.class, frame, block); break; case Opcodes.F2L: cast(float.class, long.class, frame, block); break; case Opcodes.F2D: cast(float.class, double.class, frame, block); break; case Opcodes.D2I: cast(double.class, int.class, frame, block); break; case Opcodes.D2L: cast(double.class, long.class, frame, block); break; case Opcodes.D2F: cast(double.class, float.class, frame, block); break; case Opcodes.I2B: cast(int.class, byte.class, frame, block); break; case Opcodes.I2C: cast(int.class, char.class, frame, block); break; case Opcodes.I2S: cast(int.class, short.class, frame, block); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Array store opcodes"> case Opcodes.IASTORE: case Opcodes.LASTORE: case Opcodes.FASTORE: case Opcodes.DASTORE: case Opcodes.AASTORE: case Opcodes.BASTORE: case Opcodes.CASTORE: case Opcodes.SASTORE: Value data = frame.stack.pop(); Value index = frame.stack.pop(); Value array = frame.stack.pop(); ArrayStoreInst asi = new ArrayStoreInst(array, index, data); block.block.instructions().add(asi); break; //</editor-fold> //<editor-fold defaultstate="collapsed" desc="Array load opcodes"> case Opcodes.IALOAD: case Opcodes.LALOAD: case Opcodes.FALOAD: case Opcodes.DALOAD: case Opcodes.AALOAD: case Opcodes.BALOAD: case Opcodes.CALOAD: case Opcodes.SALOAD: Value index2 = frame.stack.pop(); Value array2 = frame.stack.pop(); ArrayLoadInst ali = new ArrayLoadInst(array2, index2); block.block.instructions().add(ali); frame.stack.push(ali); break; //</editor-fold> case Opcodes.ARRAYLENGTH: ArrayLengthInst lengthInst = new ArrayLengthInst(frame.stack.pop()); block.block.instructions().add(lengthInst); frame.stack.push(lengthInst); break; case Opcodes.ATHROW: block.block.instructions().add(new ThrowInst(frame.stack.pop())); break; default: throw new UnsupportedOperationException("" + insn.getOpcode()); } }
From source file:edu.mit.streamjit.util.bytecode.MethodUnresolver.java
License:Open Source License
private void emit(ReturnInst i, InsnList insns) { ReturnType rt = i.getReturnType();//from w ww .j a va 2 s. c om if (rt instanceof VoidType) insns.add(new InsnNode(Opcodes.RETURN)); else { load(i.getOperand(0), insns); if (rt instanceof ReferenceType) insns.add(new InsnNode(Opcodes.ARETURN)); else if (rt.isSubtypeOf(intType)) insns.add(new InsnNode(Opcodes.IRETURN)); else if (rt.equals(longType)) insns.add(new InsnNode(Opcodes.LRETURN)); else if (rt.equals(floatType)) insns.add(new InsnNode(Opcodes.FRETURN)); else if (rt.equals(doubleType)) insns.add(new InsnNode(Opcodes.DRETURN)); else throw new AssertionError(i); } }
From source file:erjang.EFun.java
License:Apache License
static byte[] gen_fun_class_data(int arity) { String self_type = EFUN_TYPE.getInternalName() + arity; ClassWriter cw = new ClassWriter(true); cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC | Opcodes.ACC_ABSTRACT, self_type, null, EFUN_TYPE.getInternalName(), null); make_invoke_method(cw, self_type, arity); CompilerVisitor.make_invoketail_method(cw, self_type, arity, 0); MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "arity", "()I", null, null); mv.visitCode();// w w w.j a v a 2s . c o m mv.visitLdcInsn(new Integer(arity)); mv.visitInsn(Opcodes.IRETURN); mv.visitMaxs(2, 2); mv.visitEnd(); mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "invoke", "(" + EPROC_TYPE.getDescriptor() + EOBJECT_ARR_TYPE.getDescriptor() + ")" + EOBJECT_TYPE.getDescriptor(), null, PAUSABLE_EX); mv.visitCode(); mv.visitVarInsn(Opcodes.ALOAD, 0); // load this mv.visitVarInsn(Opcodes.ALOAD, 1); // load proc for (int i = 0; i < arity; i++) { mv.visitVarInsn(Opcodes.ALOAD, 2); push_int(mv, i); mv.visitInsn(Opcodes.AALOAD); } mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, self_type, "invoke", EUtil.getSignature(arity, true)); mv.visitInsn(Opcodes.ARETURN); mv.visitMaxs(arity + 2, arity + 2); mv.visitEnd(); mv = cw.visitMethod(Opcodes.ACC_PROTECTED, "<init>", "()V", null, null); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, EFUN_TYPE.getInternalName(), "<init>", "()V"); mv.visitInsn(Opcodes.RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); make_cast_method(cw, arity); cw.visitEnd(); byte[] data = cw.toByteArray(); return data; }
From source file:erjang.ETuple.java
License:Apache License
private static void create_count(ClassAdapter cw, int n) { MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "arity", "()I", null, null); mv.visitCode();//from w w w .ja va 2 s. c o m if (n <= 5) { mv.visitInsn(Opcodes.ICONST_0 + n); } else { mv.visitLdcInsn(new Integer(n)); } mv.visitInsn(Opcodes.IRETURN); mv.visitMaxs(1, 1); mv.visitEnd(); }
From source file:gemlite.core.internal.asm.AsmHelper.java
License:Apache License
public final static int getReturnCodeByType(String typeDesc) { switch (typeDesc) { case "I": return Opcodes.IRETURN; case "J": return Opcodes.LRETURN; case "D": return Opcodes.DRETURN; case "F": return Opcodes.FRETURN; }//from w ww . j a va 2s. co m return Opcodes.ARETURN; }
From source file:gemlite.core.internal.measurement.MeasureHelper.java
License:Apache License
public final static void instrumentCheckPoint(String className, MethodNode mn) { if (LogUtil.getCoreLog().isTraceEnabled()) LogUtil.getCoreLog().trace("Found check point, class:" + className + " method:" + mn.name); InsnList insn = mn.instructions;// w w w .j a v a 2s.c om List<AbstractInsnNode> returnIndex = new ArrayList<>(); // return int localVarCount = mn.localVariables.size(); for (int i = 0; i < insn.size(); i++) { AbstractInsnNode insnNode = (AbstractInsnNode) insn.get(i); switch (insnNode.getOpcode()) { case Opcodes.ARETURN: case Opcodes.IRETURN: case Opcodes.DRETURN: case Opcodes.LRETURN: case Opcodes.FRETURN: returnIndex.add(insnNode.getPrevious()); break; case Opcodes.RETURN: returnIndex.add(insnNode); break; } } // insn.insert(new VarInsnNode(Opcodes.LSTORE, localVarCount + 2)); insn.insert( new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/System", "currentTimeMillis", "()J", false)); // ? for (AbstractInsnNode insnNode : returnIndex) { insn.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "java/lang/System", "currentTimeMillis", "()J", false)); insn.insertBefore(insnNode, new VarInsnNode(Opcodes.LSTORE, localVarCount + 4)); insn.insertBefore(insnNode, new LdcInsnNode(className)); insn.insertBefore(insnNode, new LdcInsnNode(mn.name)); insn.insertBefore(insnNode, new VarInsnNode(Opcodes.LLOAD, localVarCount + 2)); insn.insertBefore(insnNode, new VarInsnNode(Opcodes.LLOAD, localVarCount + 4)); insn.insertBefore(insnNode, new MethodInsnNode(Opcodes.INVOKESTATIC, "gemlite/core/internal/measurement/MeasureHelper", "recordCheckPoint", "(Ljava/lang/String;Ljava/lang/String;JJ)V", false)); } }
From source file:gnu.classpath.tools.rmic.ClassRmicCompiler.java
License:Open Source License
private static int returnOpcode(Class cls) { int returncode; if (cls.equals(Boolean.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Byte.TYPE)) returncode = Opcodes.IRETURN;// ww w . ja v a 2 s.c o m else if (cls.equals(Character.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Short.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Integer.TYPE)) returncode = Opcodes.IRETURN; else if (cls.equals(Long.TYPE)) returncode = Opcodes.LRETURN; else if (cls.equals(Float.TYPE)) returncode = Opcodes.FRETURN; else if (cls.equals(Double.TYPE)) returncode = Opcodes.DRETURN; else if (cls.equals(Void.TYPE)) returncode = Opcodes.RETURN; else returncode = Opcodes.ARETURN; return returncode; }
From source file:instrumentation.InstrumentationMethodAdapter.java
License:Open Source License
public void visitInsn(int opcode) { switch (opcode) { case Opcodes.MONITORENTER: insertCode(opcode, "MonitorEnterBefore"); mv.visitInsn(Opcodes.DUP);// w w w .j a va2 s . co m mv.visitInsn(opcode); insertCode(opcode, "MonitorEnterAfter"); mv.visitInsn(Opcodes.POP); break; case Opcodes.MONITOREXIT: insertCode(opcode, "MonitorExitBefore"); mv.visitInsn(opcode); break; case Opcodes.ATHROW: case Opcodes.RETURN: case Opcodes.IRETURN: case Opcodes.LRETURN: case Opcodes.FRETURN: case Opcodes.DRETURN: case Opcodes.ARETURN: addMonitorExitBeforeReturn(); mv.visitInsn(opcode); break; default: mv.visitInsn(opcode); } }