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

Example 91 with Instruction

use of net.runelite.asm.attributes.code.Instruction in project runelite by runelite.

the class ExprArgOrder method canRemove.

private boolean canRemove(MethodContext mctx, Instructions ins, Instruction i) {
    Set<InstructionContext> ctxs = new HashSet<>(mctx.getInstructonContexts(i));
    if (!alwaysPoppedBySameInstruction(ctxs, i) || !alwaysPopsFromSameInstructions(ctxs, i)) {
        return false;
    }
    if (i instanceof InvokeInstruction) {
        // func1() + func2() vs func2() + func1() is not the same thing
        return false;
    }
    int idx = ins.getInstructions().indexOf(i);
    if (idx == -1) {
        return false;
    }
    for (InstructionContext ictx : ctxs) {
        for (StackContext sctx : ictx.getPops()) {
            Instruction pushed = sctx.getPushed().getInstruction();
            int idx2 = ins.getInstructions().indexOf(pushed);
            if (idx2 == -1) {
                return false;
            }
            assert idx > idx2;
            // instructions, we can't move them
            for (int j = idx2; j <= idx; ++j) {
                Instruction i2 = ins.getInstructions().get(j);
                if (i2 instanceof LVTInstruction) {
                    if (((LVTInstruction) i2).store()) {
                        return false;
                    }
                }
                if (i2 instanceof IInc) {
                    return false;
                }
            }
            if (!canRemove(mctx, ins, pushed)) {
                return false;
            }
        }
    }
    return true;
}

Example 92 with Instruction

use of net.runelite.asm.attributes.code.Instruction in project runelite by runelite.

the class ExprArgOrder method insert.

private void insert(Instructions ins, InstructionContext ic, Instruction before) {
    Instruction i = ic.getInstruction();
    assert i.getInstructions() == null;
    int idx = ins.getInstructions().indexOf(before);
    assert idx != -1;
    i.setInstructions(ins);
    ins.addInstruction(idx, i);
}

Example 93 with Instruction

use of net.runelite.asm.attributes.code.Instruction in project runelite by runelite.

the class Mapping method merge.

public void merge(Mapping other) {
    assert object == other.object;
    count += other.count;
    for (Instruction i : other.ins) {
        addInstruction(i);
    }
    wasExecuted |= other.wasExecuted;
    weight = Math.max(weight, other.weight);
}

Example 94 with Instruction

use of net.runelite.asm.attributes.code.Instruction in project runelite by runelite.

the class StaticInitializerIndexer method index.

public void index() {
    for (ClassFile cf : group.getClasses()) {
        Method method = cf.findMethod("<clinit>");
        if (method == null) {
            continue;
        }
        Instructions instructions = method.getCode().getInstructions();
        for (Instruction i : instructions.getInstructions()) {
            if (i.getType() != InstructionType.PUTSTATIC) {
                continue;
            }
            PutStatic putstatic = (PutStatic) i;
            if (!putstatic.getField().getClazz().equals(cf.getPoolClass()) || putstatic.getMyField() == null) {
                continue;
            }
            fields.add(putstatic.getMyField());
        }
    }
    logger.debug("Indexed {} statically initialized fields", fields.size());
}

Example 95 with Instruction

use of net.runelite.asm.attributes.code.Instruction in project runelite by runelite.

the class HandlerFinder method findHandlers.

private List<PacketHandler> findHandlers(Method process, Field packetOpcode) {
    List<PacketHandler> handlers = new ArrayList<>();
    Instructions ins = process.getCode().getInstructions();
    for (int j = 0; j < ins.getInstructions().size(); ++j) {
        Instruction i = ins.getInstructions().get(j);
        if (i.getType() != InstructionType.GETSTATIC) {
            continue;
        }
        GetStatic gs = (GetStatic) i;
        if (gs.getMyField() != packetOpcode) {
            continue;
        }
        Instruction push = ins.getInstructions().get(j + 1);
        if (!(push instanceof PushConstantInstruction)) {
            continue;
        }
        PushConstantInstruction pci = (PushConstantInstruction) push;
        if (!(pci.getConstant() instanceof Number)) {
            continue;
        }
        int opcode = ((Number) pci.getConstant()).intValue();
        if (opcode == -1) {
            continue;
        }
        Instruction jump = ins.getInstructions().get(j + 2);
        if (jump.getType() != InstructionType.IF_ICMPEQ && jump.getType() != InstructionType.IF_ICMPNE) {
            continue;
        }
        Instruction start, end;
        if (jump.getType() == InstructionType.IF_ICMPEQ) {
            // this seems to not ever happen
            start = ((If) jump).getJumps().get(0);
            // end = ins.getInstructions().get(j + 3);
            end = null;
        } else {
            start = ins.getInstructions().get(j + 3);
            end = ((If) jump).getJumps().get(0);
        }
        PacketHandler handler = new PacketHandler(process, jump, start, push, opcode);
        handlers.add(handler);
        if (end != null) {
            // Anything else which jumps to here instead needs to return.
            insertReturn(ins, jump, end);
        }
        logger.info("Found packet handler {} opcode {}", handler, handler.getOpcode());
    }
    return handlers;
}