Examples with IF_ICMPEQ net.runelite.asm.attributes.code.InstructionType.IF_ICMPEQ used on opensource projects

Example 1 with IF_ICMPEQ

use of net.runelite.asm.attributes.code.InstructionType.IF_ICMPEQ in project runelite by runelite.

the class MenuActionDeobfuscator method run.

private void run(Method method) {
    if (method.getCode() == null) {
        return;
    }
    Execution execution = new Execution(method.getClassFile().getGroup());
    execution.addMethod(method);
    execution.noInvoke = true;
    Multimap<Integer, Comparison> comps = HashMultimap.create();
    execution.addExecutionVisitor((InstructionContext ictx) -> {
        Instruction i = ictx.getInstruction();
        Frame frame = ictx.getFrame();
        if (i instanceof If) {
            // constant
            InstructionContext ctx1 = ictx.getPops().get(0).getPushed();
            // lvt
            InstructionContext ctx2 = ictx.getPops().get(1).getPushed();
            if (ctx1.getInstruction() instanceof PushConstantInstruction && ctx2.getInstruction() instanceof LVTInstruction) {
                Comparison comparison = new Comparison();
                comparison.cmp = i;
                comparison.ldc = ctx1.getInstruction();
                comparison.lvt = (LVTInstruction) ctx2.getInstruction();
                comps.put(comparison.lvt.getVariableIndex(), comparison);
            }
        }
    });
    execution.run();
    for (int i : comps.keySet()) {
        Collection<Comparison> get = comps.get(i);
        long l = get.stream().filter(c -> c.cmp.getType() == IF_ICMPGE || c.cmp.getType() == IF_ICMPGT || c.cmp.getType() == IF_ICMPLE || c.cmp.getType() == IF_ICMPLT).count();
        List<Comparison> eqcmp = get.stream().filter(c -> c.cmp.getType() == IF_ICMPEQ || c.cmp.getType() == IF_ICMPNE).collect(Collectors.toList());
        if (get.size() > THRESHOLD_EQ && l <= THRESHOLD_LT) {
            logger.info("Sorting {} comparisons in {}", eqcmp.size(), method);
            insert(method, eqcmp);
        }
    }
}