Example usage for org.objectweb.asm Opcodes IFGE

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes IFGE.

Prototype

int IFGE

To view the source code for org.objectweb.asm Opcodes IFGE.

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Usage

From source file:org.spongepowered.asm.mixin.injection.points.JumpInsnPoint.java

License:MIT License

public JumpInsnPoint(InjectionPointData data) {
    this.opCode = data.getOpcode(-1, Opcodes.IFEQ, Opcodes.IFNE, Opcodes.IFLT, Opcodes.IFGE, Opcodes.IFGT,
            Opcodes.IFLE, Opcodes.IF_ICMPEQ, Opcodes.IF_ICMPNE, Opcodes.IF_ICMPLT, Opcodes.IF_ICMPGE,
            Opcodes.IF_ICMPGT, Opcodes.IF_ICMPLE, Opcodes.IF_ACMPEQ, Opcodes.IF_ACMPNE, Opcodes.GOTO,
            Opcodes.JSR, Opcodes.IFNULL, Opcodes.IFNONNULL, -1);
    this.ordinal = data.getOrdinal();
}

From source file:org.teavm.flavour.regex.bytecode.MatcherClassBuilder.java

License:Apache License

private void buildValidMethod(ClassVisitor cv, String className) {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "isValid", "()Z", null, null);
    mv.visitCode();//from   ww w .  j a v a 2 s  .c o m

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, className, "state", "I");
    Label trueLabel = new Label();
    mv.visitJumpInsn(Opcodes.IFGE, trueLabel);
    mv.visitInsn(Opcodes.ICONST_0);
    mv.visitInsn(Opcodes.IRETURN);
    mv.visitLabel(trueLabel);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitInsn(Opcodes.IRETURN);

    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

From source file:serianalyzer.JVMImpl.java

License:Open Source License

/**
 * @param opcode/*w w  w  .j a va 2s .co  m*/
 * @param label
 * @param s
 * @return
 */
static boolean handleJVMJump(int opcode, Label label, JVMStackState s) {
    boolean tainted;
    switch (opcode) {
    case Opcodes.IF_ICMPEQ:
    case Opcodes.IF_ICMPNE:
    case Opcodes.IF_ICMPLT:
    case Opcodes.IF_ICMPGE:
    case Opcodes.IF_ICMPGT:
    case Opcodes.IF_ICMPLE:
    case Opcodes.IF_ACMPEQ:
    case Opcodes.IF_ACMPNE:
        BaseType o1 = s.pop();
        BaseType o2 = s.pop();
        tainted = !(o1 != null) || !(o2 != null) || o1.isTainted() || o2.isTainted();
        break;
    case Opcodes.IFEQ:
    case Opcodes.IFNE:
    case Opcodes.IFLT:
    case Opcodes.IFGE:
    case Opcodes.IFGT:
    case Opcodes.IFLE:
    case Opcodes.IFNULL:
    case Opcodes.IFNONNULL:
        BaseType c = s.pop();
        tainted = (c == null || c.isTainted());
        break;

    case Opcodes.JSR:
        s.push(new BasicConstant(Type.INT_TYPE, label));
        tainted = false;
        break;
    case Opcodes.GOTO:
        tainted = false;
        break;
    default:
        log.warn("Unsupported opcode " + opcode); //$NON-NLS-1$
        tainted = true;
    }
    return tainted;
}

From source file:v6.java.preverifier.MethodRewriter.java

License:Open Source License

/**
 * Visit the specified instruction and do the right thing.
 * /*  ww w  .java2  s.co m*/
 * @param method
 * @param region
 * @param insnNode
 * @throws AnalyzerException
 */
private void visitInstruction(MethodNode method, Region region, AbstractInsnNode insnNode)
        throws AnalyzerException {
    int opcode = insnNode.getOpcode();
    switch (opcode) {
    case Opcodes.JSR:
        visitJumpToSubroutine(method, region, (JumpInsnNode) insnNode);
        break;

    case Opcodes.IFEQ:
    case Opcodes.IFNE:
    case Opcodes.IFLT:
    case Opcodes.IFGE:
    case Opcodes.IFGT:
    case Opcodes.IFLE:
    case Opcodes.IF_ICMPEQ:
    case Opcodes.IF_ICMPNE:
    case Opcodes.IF_ICMPLT:
    case Opcodes.IF_ICMPGE:
    case Opcodes.IF_ICMPGT:
    case Opcodes.IF_ICMPLE:
    case Opcodes.IF_ACMPEQ:
    case Opcodes.IF_ACMPNE:
    case Opcodes.GOTO:
    case Opcodes.IFNULL:
    case Opcodes.IFNONNULL:
        visitJump(method, region, (JumpInsnNode) insnNode);
        break;

    case Opcodes.LOOKUPSWITCH:
        visitLookupSwitch(method, region, (LookupSwitchInsnNode) insnNode);
        break;

    case Opcodes.TABLESWITCH:
        visitTableSwitch(method, region, (TableSwitchInsnNode) insnNode);
        break;

    default:
        insnNode.accept(method);
    }
}