Examples with ILOAD org.apache.bcel.generic.ILOAD used on opensource projects

Example 1 with ILOAD

use of org.apache.bcel.generic.ILOAD in project jop by jop-devel.

the class ReplaceIinc method replace.

private void replace(MethodInfo method) {
    MethodCode mc = method.getCode();
    InstructionList il = mc.getInstructionList();
    InstructionFinder f = new InstructionFinder(il);
    for (Iterator i = f.search("IINC"); i.hasNext(); ) {
        InstructionHandle[] match = (InstructionHandle[]) i.next();
        InstructionHandle ih = match[0];
        IINC ii = (IINC) ih.getInstruction();
        int idx = ii.getIndex();
        int inc = ii.getIncrement();
        //  	    IINC rep = new IINC(idx, inc);
        ih.setInstruction(new ILOAD(idx));
        if (inc >= -1 && inc <= 5) {
            ih = il.append(ih, new ICONST(inc));
        } else if (inc >= -128 && inc < 127) {
            ih = il.append(ih, new BIPUSH((byte) inc));
        } else if (inc >= -32768 && inc < 32767) {
            ih = il.append(ih, new SIPUSH((short) inc));
        } else {
            System.out.println("IINC constant too big");
            System.exit(-1);
        }
        ih = il.append(ih, new IADD());
        ih = il.append(ih, new ISTORE(idx));
    }
    method.compile();
}

Example 2 with ILOAD

use of org.apache.bcel.generic.ILOAD in project jop by jop-devel.

the class HashTest method main.

public static void main(String[] args) {
    TestFramework test = new TestFramework();
    AppSetup setup = test.setupAppSetup();
    AppInfo appInfo = test.setupAppInfo("common.code.HashTest", false);
    ClassInfo testClass = appInfo.loadClass("common.TestFramework");
    MethodInfo mainMethod = appInfo.getMainMethod();
    MethodCode code = mainMethod.getCode();
    InstructionHandle[] ih = code.getInstructionList().getInstructionHandles();
    InvokeSite i1 = code.getInvokeSite(ih[1]);
    InvokeSite i2 = code.getInvokeSite(ih[2]);
    InvokeSite i3 = code.getInvokeSite(ih[3]);
    InvokeSite i11 = code.getInvokeSite(ih[1]);
    check(i1 == i11);
    CallString c1 = new CallString(i1);
    CallString c2 = new CallString(i2);
    CallString c11 = new CallString(i1);
    check(c1.equals(c11));
    check(!c1.equals(c2));
    ExecutionContext e1 = new ExecutionContext(mainMethod, c1);
    ExecutionContext e2 = new ExecutionContext(mainMethod, c2);
    ExecutionContext e11 = new ExecutionContext(mainMethod, c11);
    check(e1.equals(e11));
    check(!e1.equals(e2));
    // TODO put stuff into maps, check contains() and get()
    // modify instruction list, check if everything still works
    InstructionList il = code.getInstructionList();
    il.insert(new ILOAD(0));
    il.insert(ih[2], new ILOAD(1));
    ih = il.getInstructionHandles();
    InvokeSite i12 = code.getInvokeSite(ih[2]);
    InvokeSite i22 = code.getInvokeSite(ih[4]);
    check(i12 == i1);
    check(i22 == i2);
    check(e1.equals(e11));
    check(!e1.equals(e2));
    il.setPositions();
    check(c1.equals(c11));
    check(!c1.equals(c2));
    check(e1.equals(e11));
    check(!e1.equals(e2));
}