Example usage for org.objectweb.asm MethodVisitor visitVarInsn

List of usage examples for org.objectweb.asm MethodVisitor visitVarInsn

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitVarInsn.

Prototype

public void visitVarInsn(final int opcode, final int var)

Source Link

Document

Visits a local variable instruction.

Usage

From source file:br.usp.each.saeg.badua.core.internal.instr.IntegerRootProbe.java

License:Open Source License

@Override
public void accept(final MethodVisitor mv) {
    if (born != 0) {
        InstrSupport.push(mv, (int) born);
        mv.visitVarInsn(Opcodes.ISTORE, vAlive);
    }/*  w  w  w  .j  a  v  a2s .c o  m*/
    if (sleepy != 0) {
        InstrSupport.push(mv, ~(int) sleepy);
        mv.visitVarInsn(Opcodes.ISTORE, vSleepy);
    }
}

From source file:br.usp.each.saeg.badua.core.internal.instr.IntegerUpdateProbe.java

License:Open Source License

@Override
public void accept(final MethodVisitor mv) {
    mv.visitVarInsn(Opcodes.ILOAD, vCovered);
    mv.visitInsn(Opcodes.I2L);/*from w ww  . ja va2s .c  o  m*/
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, owner, InstrSupport.DATAMETHOD_NAME, InstrSupport.DATAMETHOD_DESC,
            false);
    InstrSupport.push(mv, index);
    mv.visitInsn(Opcodes.DUP2_X2);
    mv.visitInsn(Opcodes.LALOAD);
    mv.visitInsn(Opcodes.LOR);
    mv.visitInsn(Opcodes.LASTORE);
}

From source file:br.usp.each.saeg.badua.core.internal.instr.LongInitProbe.java

License:Open Source License

@Override
public void accept(final MethodVisitor mv) {
    mv.visitInsn(Opcodes.LCONST_0);// w  w w .j  ava 2s .co  m
    mv.visitVarInsn(Opcodes.LSTORE, vCovered);
    mv.visitInsn(Opcodes.LCONST_0);
    mv.visitVarInsn(Opcodes.LSTORE, vAlive);
    mv.visitLdcInsn(-1L);
    mv.visitVarInsn(Opcodes.LSTORE, vSleepy);
}

From source file:br.usp.each.saeg.badua.core.internal.instr.LongProbe.java

License:Open Source License

@Override
public void accept(final MethodVisitor mv) {

    // update covered
    if (potcov != 0) {
        mv.visitVarInsn(Opcodes.LLOAD, vAlive);

        if (!singlePredecessor && potcovpuse != 0) {
            mv.visitVarInsn(Opcodes.LLOAD, vSleepy);
            mv.visitInsn(Opcodes.LAND);// w  ww  .  j a v  a2 s  .  c  om
        }

        mv.visitLdcInsn(potcov);
        mv.visitInsn(Opcodes.LAND);
        mv.visitVarInsn(Opcodes.LLOAD, vCovered);
        mv.visitInsn(Opcodes.LOR);
        mv.visitVarInsn(Opcodes.LSTORE, vCovered);
    }

    // update alive
    if (disabled != 0) {
        mv.visitLdcInsn(~disabled);
        mv.visitVarInsn(Opcodes.LLOAD, vAlive);
        mv.visitInsn(Opcodes.LAND);
    }
    if (born != 0) {
        if (disabled == 0) {
            mv.visitVarInsn(Opcodes.LLOAD, vAlive);
        }
        mv.visitLdcInsn(born);
        mv.visitInsn(Opcodes.LOR);
    }
    if (disabled != 0 || born != 0) {
        mv.visitVarInsn(Opcodes.LSTORE, vAlive);
    }

    // update sleepy
    if (sleepy != 0) {
        mv.visitLdcInsn(~sleepy);
    } else {
        mv.visitLdcInsn(-1L);
    }
    mv.visitVarInsn(Opcodes.LSTORE, vSleepy);
}

From source file:br.usp.each.saeg.badua.core.internal.instr.LongRootProbe.java

License:Open Source License

@Override
public void accept(final MethodVisitor mv) {
    if (born != 0) {
        mv.visitLdcInsn(born);//from  w  ww .j  a  v  a 2 s . c om
        mv.visitVarInsn(Opcodes.LSTORE, vAlive);
    }
    if (sleepy != 0) {
        mv.visitLdcInsn(~sleepy);
        mv.visitVarInsn(Opcodes.LSTORE, vSleepy);
    }
}

From source file:br.usp.each.saeg.badua.core.internal.instr.LongUpdateProbe.java

License:Open Source License

@Override
public void accept(final MethodVisitor mv) {
    mv.visitVarInsn(Opcodes.LLOAD, vCovered);
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, owner, InstrSupport.DATAMETHOD_NAME, InstrSupport.DATAMETHOD_DESC,
            false);/* w w w .j a  v  a2s .c o  m*/
    InstrSupport.push(mv, index);
    mv.visitInsn(Opcodes.DUP2_X2);
    mv.visitInsn(Opcodes.LALOAD);
    mv.visitInsn(Opcodes.LOR);
    mv.visitInsn(Opcodes.LASTORE);
}

From source file:br.usp.each.saeg.badua.test.validation.MaxTest.java

License:Open Source License

@Override
@Before// w w  w.j a  v a2 s . c  o  m
public void setUp() throws Exception {
    super.setUp();

    final int classVersion = Opcodes.V1_6;
    final int classAccessor = Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER;
    final String className = "Max";
    final String superName = "java/lang/Object";

    final int methodAccessor = Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC;
    final String methodName = "max";
    final String methodDesc = "([II)I";

    final ClassWriter cw = new ClassWriter(0);
    final MethodVisitor mw;

    cw.visit(classVersion, classAccessor, className, null, superName, null);
    mw = cw.visitMethod(methodAccessor, methodName, methodDesc, null, null);
    mw.visitCode();
    // block 0 (definitions {0, 1, 2, 3})
    mw.visitInsn(Opcodes.ICONST_0);
    mw.visitVarInsn(Opcodes.ISTORE, 2);
    mw.visitVarInsn(Opcodes.ALOAD, 0);
    mw.visitVarInsn(Opcodes.ILOAD, 2);
    mw.visitIincInsn(2, 1);
    mw.visitInsn(Opcodes.IALOAD);
    mw.visitVarInsn(Opcodes.ISTORE, 3);
    // block 1 (p-uses {1, 2})
    final Label backLoop = new Label();
    mw.visitLabel(backLoop);
    mw.visitVarInsn(Opcodes.ILOAD, 2);
    mw.visitVarInsn(Opcodes.ILOAD, 1);
    final Label breakLoop = new Label();
    mw.visitJumpInsn(Opcodes.IF_ICMPGE, breakLoop);
    // block 3 (p-uses {0, 2, 3})
    mw.visitVarInsn(Opcodes.ALOAD, 0);
    mw.visitVarInsn(Opcodes.ILOAD, 2);
    mw.visitInsn(Opcodes.IALOAD);
    mw.visitVarInsn(Opcodes.ILOAD, 3);
    final Label jump = new Label();
    mw.visitJumpInsn(Opcodes.IF_ICMPLE, jump);
    // block 5 (definitions {3}, uses {0, 2})
    mw.visitVarInsn(Opcodes.ALOAD, 0);
    mw.visitVarInsn(Opcodes.ILOAD, 2);
    mw.visitInsn(Opcodes.IALOAD);
    mw.visitVarInsn(Opcodes.ISTORE, 3);
    // block 4 (definitions {2}, uses {2})
    mw.visitLabel(jump);
    mw.visitIincInsn(2, 1);
    mw.visitJumpInsn(Opcodes.GOTO, backLoop);
    // block 2 ( uses {3})
    mw.visitLabel(breakLoop);
    mw.visitVarInsn(Opcodes.ILOAD, 3);
    mw.visitInsn(Opcodes.IRETURN);
    mw.visitMaxs(2, 4);
    mw.visitEnd();
    cw.visitEnd();

    final byte[] bytes = cw.toByteArray();
    klass = addClass(className, bytes);
    method = klass.getMethod(methodName, int[].class, int.class);
    classId = CRC64.checksum(bytes);

    RT.init(new RuntimeData());
}

From source file:cc.adf.metrics.agent.visitor.ApplicationModuleImplModifier.java

public static void addDetailNameMethod(ClassWriter cw) {
    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE, "getDetailName", "()Ljava/lang/String;", null, null);
    mv.visitCode();//  w  w  w . j ava  2s.c o  m
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, "oracle/jbo/server/ApplicationModuleImpl", "isRoot", "()Z", false);
    Label l0 = new Label();
    mv.visitJumpInsn(IFEQ, l0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, "oracle/jbo/server/ApplicationModuleImpl", "getName",
            "()Ljava/lang/String;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V", false);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, "oracle/jbo/server/ApplicationModuleImpl", "getRootApplicationModule",
            "()Loracle/jbo/server/ApplicationModuleImpl;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "oracle/jbo/server/ApplicationModuleImpl", "getName",
            "()Ljava/lang/String;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitLdcInsn("::");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, "oracle/jbo/server/ApplicationModuleImpl", "getName",
            "()Ljava/lang/String;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
            "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

From source file:ch.eiafr.cojac.instrumenters.FloatProxyMethod.java

License:Apache License

public void nativeCall(MethodVisitor mv, int access, String owner, String name, String desc) {
    boolean isStatic = (access & ACC_STATIC) > 0;
    String newDesc = replaceFloatMethodDescription(desc);
    MethodVisitor newMv = ccv.addProxyMethod(access & ~ACC_NATIVE, name, newDesc, null, null);
    int varIndex = 0;
    int opcode = INVOKESTATIC;
    if (!isStatic) {
        newMv.visitVarInsn(ALOAD, 0);
        varIndex = 1;/*  w  ww. j a v  a  2  s.  c  om*/
        opcode = INVOKEVIRTUAL;
    }
    ConversionContext cc = new ConversionContext(opcode, owner, name, desc);
    Type args[] = Type.getArgumentTypes(newDesc);
    for (Type type : args) {
        newMv.visitVarInsn(getLoadOpcode(type), varIndex);
        varIndex += type.getSize();
    }
    convertArgumentsToReal(mv, cc);
    // stack >> [target] allParamsArr [target] allParamsArr
    maybeConvertTarget(mv, cc.opcode, cc.owner);
    // stack >> [target] allParamsArr [newTarget] allParamsArr
    explodeOnStack(mv, cc, true);
    // stack >> [target] allParamsArr [newTarget] nprm0 nprm1 nprm2...
    newMv.visitMethodInsn(opcode, owner, name, desc, false);
    // stack >> [target] allParamsArr [possibleResult]
    checkArraysAfterCall(newMv, cc.convertedArrays, desc);
    // stack >> [target] [possibleResult]
    convertReturnType(newMv, desc);
    // stack >> [target] [newPossibleResult]
    newMv.visitInsn(afterFloatReplacement(Type.getReturnType(desc)).getOpcode(IRETURN));
    // stack >> [target]       // left on the stack... not a problem!
    newMv.visitMaxs(0, 0);
}

From source file:ch.eiafr.cojac.instrumenters.FloatProxyMethod.java

License:Apache License

private void createConvertMethod(String convertDesc, ConversionContext cc) {
    if (ccv.isProxyMethod(COJAC_TYPE_CONVERT_NAME, convertDesc))
        return; // the method already exists
    MethodVisitor newMv = ccv.addProxyMethod(ACC_STATIC, COJAC_TYPE_CONVERT_NAME, convertDesc, null, null);
    int varIndex = 0;
    newMv.visitLdcInsn(cc.outArgs.length + 1); // additional cell for the AllAsObjects array
    newMv.visitTypeInsn(ANEWARRAY, OBJ_TYPE.getInternalName());
    // stack >> prmsArr
    newMv.visitInsn(DUP);//from w w  w. ja  v a  2  s. c om
    newMv.visitLdcInsn(cc.outArgs.length);
    newMv.visitInsn(DUP);
    newMv.visitTypeInsn(ANEWARRAY, OBJ_TYPE.getInternalName());
    // stack >> prmsArr prmsArr n asObjArr
    newMv.visitInsn(AASTORE);
    // stack >> prmsArr

    for (int i = 0; i < cc.outArgs.length; i++) {
        Type ia = cc.inArgs[i];
        newMv.visitInsn(DUP);
        newMv.visitInsn(DUP);
        newMv.visitLdcInsn(cc.outArgs.length);
        // stack >> prmsArr prmsArr prmsArr n
        newMv.visitInsn(AALOAD);
        newMv.visitTypeInsn(CHECKCAST, "[" + OBJ_TYPE.getDescriptor());
        // stack >> prmsArr prmsArr asObjArr
        newMv.visitLdcInsn(i);
        // stack >> prmsArr prmsArr asObjArr i
        newMv.visitVarInsn(getLoadOpcode(ia), varIndex);
        convertPrimitiveToObject(newMv, cc.inArgs[i]);
        // stack >> prmsArr prmsArr asObjArr i pi
        newMv.visitInsn(AASTORE);
        // stack >> prmsArr prmsArr
        newMv.visitLdcInsn(i);
        // stack >> prmsArr prmsArr i
        newMv.visitVarInsn(getLoadOpcode(ia), varIndex);
        varIndex += cc.inArgs[i].getSize();
        // stack >> prmsArr prmsArr i pi
        boolean keepBothVersions = (ia.getSort() == Type.ARRAY);
        if (keepBothVersions) { // keep the old reference (the Cojac one)
            newMv.visitLdcInsn(2);
            newMv.visitTypeInsn(ANEWARRAY, OBJ_TYPE.getInternalName());
            // stack >> prmsArr prmsArr i pi piArr
            newMv.visitInsn(DUP_X1);
            // stack >> prmsArr prmsArr i piArr pi piArr
            newMv.visitInsn(SWAP);
            // stack >> prmsArr prmsArr i piArr piArr pi
            newMv.visitInsn(DUP_X1);
            newMv.visitLdcInsn(0);
            newMv.visitInsn(SWAP);
            // stack >> prmsArr prmsArr i piArr pi piArr pi 0
            newMv.visitInsn(AASTORE);
            // stack >> prmsArr prmsArr i piArr
        }
        // stack >> prmsArr prmsArr i pi
        if (cc.needsConversion(i)) {
            convertCojacToRealType(cc.asOriginalJavaType(i), newMv);
        } else if (cc.shouldObjParamBeConverted && (ia.equals(OBJ_TYPE) || ia.equals(OBJ_ARRAY_TYPE))) {
            convertObjectToReal(newMv, ia);
        }
        /* This is where we could decide to convert back to JavaWrapper
         * when the argument is declared as Object
         * We don't do that to keep "enriched numbers" in collections
         * but sometimes we would like to convert, eg printf, format...
         */
        convertPrimitiveToObject(newMv, cc.outArgs[i]);
        // stack >> prmsArr prmsArr i pi
        if (keepBothVersions) { // keep the new reference (the java one)
            newMv.visitInsn(SWAP);
            newMv.visitInsn(DUP_X1);
            newMv.visitInsn(SWAP);
            newMv.visitLdcInsn(1);
            newMv.visitInsn(SWAP);
            newMv.visitInsn(AASTORE);
        }
        // stack >> prmsArr prmsArr i pi
        newMv.visitInsn(AASTORE);
        // stack >> prmsArr
    }
    newMv.visitInsn(ARETURN);
    newMv.visitMaxs(0, 0);
}