Examples with Type org.robovm.compiler.llvm.Type used on opensource projects

Example 6 with Type

use of org.robovm.compiler.llvm.Type in project robovm by robovm.

the class MethodCompiler method immediate.

private Value immediate(Unit unit, Immediate v) {
    // v is either a soot.Local or a soot.jimple.Constant
    if (v instanceof soot.Local) {
        Local local = (Local) v;
        Type type = getLocalType(v.getType());
        VariableRef var = new VariableRef(local.getName(), new PointerType(type));
        Variable tmp = function.newVariable(type);
        function.add(new Load(tmp, var, !sootMethod.getActiveBody().getTraps().isEmpty())).attach(unit);
        return new VariableRef(tmp);
    } else if (v instanceof soot.jimple.IntConstant) {
        return new IntegerConstant(((soot.jimple.IntConstant) v).value);
    } else if (v instanceof soot.jimple.LongConstant) {
        return new IntegerConstant(((soot.jimple.LongConstant) v).value);
    } else if (v instanceof soot.jimple.FloatConstant) {
        return new FloatingPointConstant(((soot.jimple.FloatConstant) v).value);
    } else if (v instanceof soot.jimple.DoubleConstant) {
        return new FloatingPointConstant(((soot.jimple.DoubleConstant) v).value);
    } else if (v instanceof soot.jimple.NullConstant) {
        return new NullConstant(OBJECT_PTR);
    } else if (v instanceof soot.jimple.StringConstant) {
        String s = ((soot.jimple.StringConstant) v).value;
        return call(unit, ldcString(s), env);
    } else if (v instanceof soot.jimple.ClassConstant) {
        // ClassConstant is either the internal name of a class or the descriptor of an array
        String targetClassName = ((soot.jimple.ClassConstant) v).getValue();
        if (isArray(targetClassName) && isPrimitiveComponentType(targetClassName)) {
            String primitiveDesc = targetClassName.substring(1);
            Variable result = function.newVariable(OBJECT_PTR);
            function.add(new Load(result, new ConstantBitcast(new GlobalRef("array_" + primitiveDesc, CLASS_PTR), new PointerType(OBJECT_PTR)))).attach(unit);
            return result.ref();
        } else {
            FunctionRef fn = null;
            if (targetClassName.equals(this.className)) {
                fn = FunctionBuilder.ldcInternal(sootMethod.getDeclaringClass()).ref();
            } else {
                Trampoline trampoline = new LdcClass(className, ((soot.jimple.ClassConstant) v).getValue());
                trampolines.add(trampoline);
                fn = trampoline.getFunctionRef();
            }
            return call(unit, fn, env);
        }
    }
    throw new IllegalArgumentException("Unknown Immediate type: " + v.getClass());
}

Example 7 with Type

use of org.robovm.compiler.llvm.Type in project robovm by robovm.

the class CallbackMethodCompiler method compileCallback.

private Function compileCallback(ModuleBuilder moduleBuilder, SootMethod method) {
    Function callbackFn = null;
    FunctionType nativeFnType = null;
    boolean useCWrapper = requiresCWrapper(method);
    if (useCWrapper) {
        // The C wrapper is the function which is called by native code. It
        // handles structs passed/returned by value. It calls an LLVM function 
        // which has the same signature but all structs passed/returned by value
        // replaced by pointers (i8*).
        FunctionRef callbackCWrapperRef = getCallbackCWrapperRef(method, Symbols.callbackCSymbol(method));
        getCWrapperFunctions().add(createCallbackCWrapper(callbackCWrapperRef.getType(), callbackCWrapperRef.getName(), Symbols.callbackInnerCSymbol(method)));
        moduleBuilder.addFunctionDeclaration(new FunctionDeclaration(callbackCWrapperRef));
        Type callbackRetType = callbackCWrapperRef.getType().getReturnType() instanceof StructureType ? I8_PTR : callbackCWrapperRef.getType().getReturnType();
        Type[] callbackParamTypes = new Type[callbackCWrapperRef.getType().getParameterTypes().length];
        for (int i = 0; i < callbackParamTypes.length; i++) {
            Type t = callbackCWrapperRef.getType().getParameterTypes()[i];
            if (t instanceof StructureType) {
                t = I8_PTR;
            }
            callbackParamTypes[i] = t;
        }
        moduleBuilder.addAlias(new Alias(Symbols.callbackPtrSymbol(method), Linkage._private, new ConstantBitcast(callbackCWrapperRef, I8_PTR)));
        callbackFn = new FunctionBuilder(Symbols.callbackInnerCSymbol(method), new FunctionType(callbackRetType, callbackParamTypes)).build();
        nativeFnType = callbackCWrapperRef.getType();
    } else {
        FunctionType callbackFnType = getCallbackFunctionType(method, false);
        callbackFn = FunctionBuilder.callback(method, callbackFnType);
        moduleBuilder.addAlias(new Alias(Symbols.callbackPtrSymbol(method), Linkage._private, new ConstantBitcast(callbackFn.ref(), I8_PTR)));
        nativeFnType = callbackFnType;
    }
    moduleBuilder.addFunction(callbackFn);
    String targetName = method.isSynchronized() ? Symbols.synchronizedWrapperSymbol(method) : Symbols.methodSymbol(method);
    FunctionRef targetFn = new FunctionRef(targetName, getFunctionType(method));
    // Increase the attach count for the current thread (attaches the thread
    // if not attached)
    Value env = call(callbackFn, BC_ATTACH_THREAD_FROM_CALLBACK);
    BasicBlockRef bbSuccess = callbackFn.newBasicBlockRef(new Label("success"));
    BasicBlockRef bbFailure = callbackFn.newBasicBlockRef(new Label("failure"));
    pushCallbackFrame(callbackFn, env);
    trycatchAllEnter(callbackFn, env, bbSuccess, bbFailure);
    callbackFn.newBasicBlock(bbSuccess.getLabel());
    List<MarshaledArg> marshaledArgs = new ArrayList<MarshaledArg>();
    ArrayList<Value> args = new ArrayList<Value>();
    args.add(env);
    if (!method.isStatic()) {
        MarshalerMethod marshalerMethod = config.getMarshalerLookup().findMarshalerMethod(new MarshalSite(method, MarshalSite.RECEIVER));
        MarshaledArg marshaledArg = new MarshaledArg();
        marshaledArg.paramIndex = MarshalSite.RECEIVER;
        marshaledArgs.add(marshaledArg);
        Value arg = callbackFn.getParameterRef(0);
        String targetClassName = getInternalName(method.getDeclaringClass());
        arg = marshalNativeToObject(callbackFn, marshalerMethod, marshaledArg, env, targetClassName, arg, MarshalerFlags.CALL_TYPE_CALLBACK);
        args.add(arg);
    }
    for (int i = 0, argIdx = 0; i < method.getParameterCount(); i++, argIdx++) {
        if (!method.isStatic() && argIdx == 0) {
            argIdx++;
        }
        Value arg = callbackFn.getParameterRef(argIdx);
        soot.Type type = method.getParameterType(i);
        if (needsMarshaler(type)) {
            MarshalerMethod marshalerMethod = config.getMarshalerLookup().findMarshalerMethod(new MarshalSite(method, i));
            String targetClassName = getInternalName(type);
            if (arg.getType() instanceof PrimitiveType) {
                arg = marshalNativeToValueObject(callbackFn, marshalerMethod, env, targetClassName, arg, MarshalerFlags.CALL_TYPE_CALLBACK);
            } else {
                MarshaledArg marshaledArg = new MarshaledArg();
                marshaledArg.paramIndex = i;
                marshaledArgs.add(marshaledArg);
                Type nativeType = nativeFnType.getParameterTypes()[argIdx];
                if (nativeType instanceof StructureType) {
                    // Struct passed by value on the stack. Make a heap copy of the data and marshal that.
                    DataLayout dataLayout = config.getDataLayout();
                    Value heapCopy = call(callbackFn, BC_COPY_STRUCT, env, arg, new IntegerConstant(dataLayout.getAllocSize(nativeType)));
                    arg = marshalNativeToObject(callbackFn, marshalerMethod, marshaledArg, env, targetClassName, heapCopy, MarshalerFlags.CALL_TYPE_CALLBACK);
                } else {
                    arg = marshalNativeToObject(callbackFn, marshalerMethod, marshaledArg, env, targetClassName, arg, MarshalerFlags.CALL_TYPE_CALLBACK);
                }
            }
        } else {
            arg = marshalNativeToPrimitive(callbackFn, method, i, arg);
        }
        args.add(arg);
    }
    Value result = call(callbackFn, targetFn, args);
    // Call Marshaler.updateNative() for each object that was marshaled before
    // the call.
    updateNative(method, callbackFn, env, MarshalerFlags.CALL_TYPE_CALLBACK, marshaledArgs);
    // Marshal the returned value to a native value before returning
    if (needsMarshaler(method.getReturnType())) {
        MarshalerMethod marshalerMethod = config.getMarshalerLookup().findMarshalerMethod(new MarshalSite(method));
        Type nativeType = callbackFn.getType().getReturnType();
        if (nativeType instanceof PrimitiveType) {
            result = marshalValueObjectToNative(callbackFn, marshalerMethod, nativeType, env, result, MarshalerFlags.CALL_TYPE_CALLBACK);
        } else {
            result = marshalObjectToNative(callbackFn, marshalerMethod, null, nativeType, env, result, MarshalerFlags.CALL_TYPE_CALLBACK);
        }
    } else {
        result = marshalPrimitiveToNative(callbackFn, method, result);
    }
    trycatchLeave(callbackFn, env);
    popCallbackFrame(callbackFn, env);
    call(callbackFn, BC_DETACH_THREAD_FROM_CALLBACK, env);
    callbackFn.add(new Ret(result));
    callbackFn.newBasicBlock(bbFailure.getLabel());
    trycatchLeave(callbackFn, env);
    popCallbackFrame(callbackFn, env);
    Value ex = call(callbackFn, BC_EXCEPTION_CLEAR, env);
    // Call Marshaler.updateNative() for each object that was marshaled before
    // the call.
    updateNative(method, callbackFn, env, MarshalerFlags.CALL_TYPE_CALLBACK, marshaledArgs);
    call(callbackFn, BC_DETACH_THREAD_FROM_CALLBACK, env);
    call(callbackFn, BC_THROW, env, ex);
    callbackFn.add(new Unreachable());
    return callbackFn;
}

Example 8 with Type

use of org.robovm.compiler.llvm.Type in project robovm by robovm.

the class ClassCompiler method compile.

private void compile(Clazz clazz, OutputStream out) throws IOException {
    javaMethodCompiler.reset(clazz);
    bridgeMethodCompiler.reset(clazz);
    callbackMethodCompiler.reset(clazz);
    nativeMethodCompiler.reset(clazz);
    structMemberMethodCompiler.reset(clazz);
    globalValueMethodCompiler.reset(clazz);
    ClazzInfo ci = clazz.resetClazzInfo();
    mb = new ModuleBuilder();
    for (CompilerPlugin compilerPlugin : config.getCompilerPlugins()) {
        compilerPlugin.beforeClass(config, clazz, mb);
    }
    sootClass = clazz.getSootClass();
    trampolines = new HashMap<>();
    catches = new HashSet<String>();
    classFields = getClassFields(config.getOs(), config.getArch(), sootClass);
    instanceFields = getInstanceFields(config.getOs(), config.getArch(), sootClass);
    classType = getClassType(config.getOs(), config.getArch(), sootClass);
    instanceType = getInstanceType(config.getOs(), config.getArch(), sootClass);
    attributesEncoder.encode(mb, sootClass);
    // will never be initialized.
    if (!sootClass.declaresMethodByName("<clinit>") && hasConstantValueTags(classFields)) {
        SootMethod clinit = new SootMethod("<clinit>", Collections.EMPTY_LIST, VoidType.v(), Modifier.STATIC);
        JimpleBody body = Jimple.v().newBody(clinit);
        clinit.setActiveBody(body);
        body.getUnits().add(new JReturnVoidStmt());
        this.sootClass.addMethod(clinit);
    }
    if (isStruct(sootClass)) {
        SootMethod _sizeOf = new SootMethod("_sizeOf", Collections.EMPTY_LIST, IntType.v(), Modifier.PROTECTED | Modifier.NATIVE);
        sootClass.addMethod(_sizeOf);
        SootMethod sizeOf = new SootMethod("sizeOf", Collections.EMPTY_LIST, IntType.v(), Modifier.PUBLIC | Modifier.STATIC | Modifier.NATIVE);
        sootClass.addMethod(sizeOf);
    }
    mb.addInclude(getClass().getClassLoader().getResource(String.format("header-%s-%s.ll", config.getOs().getFamily(), config.getArch())));
    mb.addInclude(getClass().getClassLoader().getResource("header.ll"));
    mb.addFunction(createLdcClass());
    mb.addFunction(createLdcClassWrapper());
    Function allocator = createAllocator();
    mb.addFunction(allocator);
    mb.addFunction(createClassInitWrapperFunction(allocator.ref()));
    for (SootField f : sootClass.getFields()) {
        Function getter = createFieldGetter(f, classFields, classType, instanceFields, instanceType);
        Function setter = createFieldSetter(f, classFields, classType, instanceFields, instanceType);
        mb.addFunction(getter);
        mb.addFunction(setter);
        if (f.isStatic() && !f.isPrivate()) {
            mb.addFunction(createClassInitWrapperFunction(getter.ref()));
            if (!f.isFinal()) {
                mb.addFunction(createClassInitWrapperFunction(setter.ref()));
            }
        }
    }
    // After this point no changes to methods/fields may be done by CompilerPlugins.
    ci.initClassInfo();
    for (SootMethod method : sootClass.getMethods()) {
        for (CompilerPlugin compilerPlugin : config.getCompilerPlugins()) {
            compilerPlugin.beforeMethod(config, clazz, method, mb);
        }
        String name = method.getName();
        Function function = null;
        if (hasBridgeAnnotation(method)) {
            function = bridgeMethod(method);
        } else if (hasGlobalValueAnnotation(method)) {
            function = globalValueMethod(method);
        } else if (isStruct(sootClass) && ("_sizeOf".equals(name) || "sizeOf".equals(name) || hasStructMemberAnnotation(method))) {
            function = structMember(method);
        } else if (method.isNative()) {
            function = nativeMethod(method);
        } else if (!method.isAbstract()) {
            function = method(method);
        }
        if (hasCallbackAnnotation(method)) {
            callbackMethod(method);
        }
        if (!name.equals("<clinit>") && !name.equals("<init>") && !method.isPrivate() && !method.isStatic() && !Modifier.isFinal(method.getModifiers()) && !Modifier.isFinal(sootClass.getModifiers())) {
            createLookupFunction(method);
        }
        if (method.isStatic() && !name.equals("<clinit>")) {
            String fnName = method.isSynchronized() ? Symbols.synchronizedWrapperSymbol(method) : Symbols.methodSymbol(method);
            FunctionRef fn = new FunctionRef(fnName, getFunctionType(method));
            mb.addFunction(createClassInitWrapperFunction(fn));
        }
        for (CompilerPlugin compilerPlugin : config.getCompilerPlugins()) {
            if (function != null) {
                compilerPlugin.afterMethod(config, clazz, method, mb, function);
            }
        }
    }
    for (Trampoline trampoline : trampolines.keySet()) {
        Set<String> deps = new HashSet<String>();
        Set<Triple<String, String, String>> mDeps = new HashSet<>();
        trampolineResolver.compile(mb, clazz, trampoline, deps, mDeps);
        for (SootMethod m : trampolines.get(trampoline)) {
            MethodInfo mi = ci.getMethod(m.getName(), getDescriptor(m));
            mi.addClassDependencies(deps, false);
            mi.addInvokeMethodDependencies(mDeps, false);
        }
    }
    /*
         * Add method dependencies from overriding methods to the overridden
         * super method(s). These will be reversed by the DependencyGraph to
         * create edges from the super/interface method to the overriding
         * method.
         */
    Map<SootMethod, Set<SootMethod>> overriddenMethods = getOverriddenMethods(this.sootClass);
    for (SootMethod from : overriddenMethods.keySet()) {
        MethodInfo mi = ci.getMethod(from.getName(), getDescriptor(from));
        for (SootMethod to : overriddenMethods.get(from)) {
            mi.addSuperMethodDependency(getInternalName(to.getDeclaringClass()), to.getName(), getDescriptor(to), false);
        }
    }
    /*
         * Edge case. A method in a superclass might satisfy an interface method
         * in the interfaces implemented by this class. See e.g. the abstract
         * class HashMap$HashIterator which doesn't implement Iterator but has
         * the hasNext() and other methods. We add a dependency from the current
         * class to the super method to ensure it's included if the current
         * class is linked in.
         */
    if (sootClass.hasSuperclass()) {
        for (SootClass interfaze : getImmediateInterfaces(sootClass)) {
            for (SootMethod m : interfaze.getMethods()) {
                if (!m.isStatic()) {
                    try {
                        this.sootClass.getMethod(m.getName(), m.getParameterTypes());
                    } catch (RuntimeException e) {
                        /*
                             * Not found. Find the implementation in
                             * superclasses.
                             */
                        SootMethod superMethod = null;
                        for (SootClass sc = sootClass.getSuperclass(); sc.hasSuperclass(); sc = sc.getSuperclass()) {
                            try {
                                SootMethod candidate = sc.getMethod(m.getName(), m.getParameterTypes());
                                if (!candidate.isStatic()) {
                                    superMethod = candidate;
                                    break;
                                }
                            } catch (RuntimeException e2) {
                            // Not found.
                            }
                        }
                        if (superMethod != null) {
                            ci.addSuperMethodDependency(getInternalName(superMethod.getDeclaringClass()), superMethod.getName(), getDescriptor(superMethod), false);
                        }
                    }
                }
            }
        }
    }
    Global classInfoStruct = null;
    try {
        if (!sootClass.isInterface()) {
            config.getVTableCache().get(sootClass);
        }
        classInfoStruct = new Global(Symbols.infoStructSymbol(clazz.getInternalName()), Linkage.weak, createClassInfoStruct());
    } catch (IllegalArgumentException e) {
        // VTable throws this if any of the superclasses of the class is actually an interface.
        // Shouldn't happen frequently but the DRLVM test suite has some tests for this.
        // The Linker will take care of making sure the class cannot be loaded at runtime.
        classInfoStruct = new Global(Symbols.infoStructSymbol(clazz.getInternalName()), I8_PTR, true);
    }
    mb.addGlobal(classInfoStruct);
    /*
         * Emit an internal i8* alias for the info struct which MethodCompiler
         * can use when referencing this info struct in exception landing pads
         * in methods in the same class. See #1007.
         */
    mb.addAlias(new Alias(classInfoStruct.getName() + "_i8ptr", Linkage._private, new ConstantBitcast(classInfoStruct.ref(), I8_PTR)));
    Function infoFn = FunctionBuilder.infoStruct(sootClass);
    infoFn.add(new Ret(new ConstantBitcast(classInfoStruct.ref(), I8_PTR_PTR)));
    mb.addFunction(infoFn);
    for (CompilerPlugin compilerPlugin : config.getCompilerPlugins()) {
        compilerPlugin.afterClass(config, clazz, mb);
    }
    OutputStreamWriter writer = new OutputStreamWriter(out, "UTF-8");
    mb.build().write(writer);
    writer.flush();
    ci.setCatchNames(catches);
    // Make sure no class or interface has zero dependencies
    ci.addClassDependency("java/lang/Object", false);
    if (sootClass.hasSuperclass() && !sootClass.isInterface()) {
        ci.addClassDependency(getInternalName(sootClass.getSuperclass()), false);
    }
    for (SootClass iface : sootClass.getInterfaces()) {
        ci.addClassDependency(getInternalName(iface), false);
    }
    for (SootField f : sootClass.getFields()) {
        addClassDependencyIfNeeded(clazz, f.getType(), false);
    }
    for (SootMethod m : sootClass.getMethods()) {
        MethodInfo mi = ci.getMethod(m.getName(), getDescriptor(m));
        addClassDependencyIfNeeded(clazz, mi, m.getReturnType(), false);
        @SuppressWarnings("unchecked") List<soot.Type> paramTypes = (List<soot.Type>) m.getParameterTypes();
        for (soot.Type type : paramTypes) {
            addClassDependencyIfNeeded(clazz, mi, type, false);
        }
    }
    ci.addClassDependencies(attributesEncoder.getDependencies(), false);
    ci.addClassDependencies(catches, false);
    for (Trampoline t : trampolines.keySet()) {
        if (t instanceof Checkcast) {
            ci.addCheckcast(t.getTarget());
        } else if (t instanceof Instanceof) {
            ci.addInstanceof(t.getTarget());
        } else if (t instanceof Invokevirtual || t instanceof Invokeinterface) {
            ci.addInvoke(t.getTarget() + "." + ((Invoke) t).getMethodName() + ((Invoke) t).getMethodDesc());
        }
    }
    clazz.saveClazzInfo();
}

Example 9 with Type

use of org.robovm.compiler.llvm.Type in project robovm by robovm.

the class MethodCompiler method doCompile.

protected Function doCompile(ModuleBuilder moduleBuilder, SootMethod method) {
    function = createMethodFunction(method);
    moduleBuilder.addFunction(function);
    this.moduleBuilder = moduleBuilder;
    env = function.getParameterRef(0);
    trapsAt = new HashMap<Unit, List<Trap>>();
    Body body = method.retrieveActiveBody();
    NopStmt prependedNop = null;
    if (method.isStatic() && !body.getUnits().getFirst().getBoxesPointingToThis().isEmpty()) {
        // Fix for issue #1. This prevents an NPE in Soot's ArrayBoundsCheckerAnalysis. The NPE
        // occurs for static methods which start with a unit that is the target of some other
        // unit. We work around this by inserting a nop statement as the first unit in such 
        // methods. See http://www.sable.mcgill.ca/listarchives/soot-list/msg01397.html.
        Unit insertionPoint = body.getUnits().getFirst();
        prependedNop = Jimple.v().newNopStmt();
        body.getUnits().getNonPatchingChain().insertBefore(prependedNop, insertionPoint);
    }
    PackManager.v().getPack("jtp").apply(body);
    PackManager.v().getPack("jop").apply(body);
    PackManager.v().getPack("jap").apply(body);
    if (body.getUnits().getFirst() == prependedNop && prependedNop.getBoxesPointingToThis().isEmpty()) {
        // Remove the nop we inserted above to work around the bug in Soot's 
        // ArrayBoundsCheckerAnalysis which has now been run.
        body.getUnits().getNonPatchingChain().removeFirst();
    }
    PatchingChain<Unit> units = body.getUnits();
    Map<Unit, List<Unit>> branchTargets = getBranchTargets(body);
    Map<Unit, Integer> trapHandlers = getTrapHandlers(body);
    Map<Unit, Integer> selChanges = new HashMap<Unit, Integer>();
    int multiANewArrayMaxDims = 0;
    Set<Local> locals = new HashSet<Local>();
    boolean emitCheckStackOverflow = false;
    for (Unit unit : units) {
        if (unit instanceof DefinitionStmt) {
            DefinitionStmt stmt = (DefinitionStmt) unit;
            if (stmt.getLeftOp() instanceof Local) {
                Local local = (Local) stmt.getLeftOp();
                if (!locals.contains(local)) {
                    Type type = getLocalType(local.getType());
                    Alloca alloca = new Alloca(function.newVariable(local.getName(), type), type);
                    alloca.attach(local);
                    function.add(alloca);
                    locals.add(local);
                }
            }
            if (stmt.getRightOp() instanceof NewMultiArrayExpr) {
                NewMultiArrayExpr expr = (NewMultiArrayExpr) stmt.getRightOp();
                multiANewArrayMaxDims = Math.max(multiANewArrayMaxDims, expr.getSizeCount());
            }
            if (stmt.getRightOp() instanceof InvokeExpr) {
                emitCheckStackOverflow = true;
            }
        }
        if (unit instanceof InvokeStmt) {
            emitCheckStackOverflow = true;
        }
    }
    dims = null;
    if (multiANewArrayMaxDims > 0) {
        dims = function.newVariable("dims", new PointerType(new ArrayType(multiANewArrayMaxDims, I32)));
        function.add(new Alloca(dims, new ArrayType(multiANewArrayMaxDims, I32)));
    }
    if (emitCheckStackOverflow) {
        call(CHECK_STACK_OVERFLOW);
    }
    Value trycatchContext = null;
    if (!body.getTraps().isEmpty()) {
        List<List<Trap>> recordedTraps = new ArrayList<List<Trap>>();
        for (Unit unit : units) {
            // Calculate the predecessor units of unit 
            Set<Unit> incoming = new HashSet<Unit>();
            if (units.getFirst() != unit && units.getPredOf(unit).fallsThrough()) {
                incoming.add(units.getPredOf(unit));
            }
            if (branchTargets.keySet().contains(unit)) {
                incoming.addAll(branchTargets.get(unit));
            }
            if (unit == units.getFirst() || trapHandlers.containsKey(unit) || trapsDiffer(unit, incoming)) {
                List<Trap> traps = getTrapsAt(unit);
                if (traps.isEmpty()) {
                    selChanges.put(unit, 0);
                } else {
                    int index = recordedTraps.indexOf(traps);
                    if (index == -1) {
                        index = recordedTraps.size();
                        recordedTraps.add(traps);
                    }
                    selChanges.put(unit, index + 1);
                }
            }
        }
        StructureConstantBuilder landingPadsPtrs = new StructureConstantBuilder();
        for (List<Trap> traps : recordedTraps) {
            StructureConstantBuilder landingPads = new StructureConstantBuilder();
            for (Trap trap : traps) {
                SootClass exClass = trap.getException();
                StructureConstantBuilder landingPad = new StructureConstantBuilder();
                if ("java.lang.Throwable".equals(exClass.getName()) || exClass.isPhantom()) {
                    landingPad.add(new NullConstant(I8_PTR));
                } else {
                    catches.add(getInternalName(exClass));
                    if (exClass == sootClass) {
                        /*
                             * The class being compiled is an exception class
                             * with a catch clause which catches itself. We
                             * cannot reference the info struct directly since
                             * we don't know the type of it and it hasn't been
                             * emitted by ClassCompiler yet. Use the internal
                             * i8* alias instead which ClassCompiler will emit.
                             * See #1007.
                             */
                        landingPad.add(new AliasRef(Symbols.infoStructSymbol(getInternalName(exClass)) + "_i8ptr", I8_PTR));
                    } else {
                        Global g = new Global(Symbols.infoStructSymbol(getInternalName(exClass)), I8_PTR, true);
                        if (!moduleBuilder.hasSymbol(g.getName())) {
                            moduleBuilder.addGlobal(g);
                        }
                        landingPad.add(g.ref());
                    }
                }
                landingPad.add(new IntegerConstant(trapHandlers.get(trap.getHandlerUnit()) + 1));
                landingPads.add(landingPad.build());
            }
            landingPads.add(new StructureConstantBuilder().add(new NullConstant(I8_PTR)).add(new IntegerConstant(0)).build());
            Global g = moduleBuilder.newGlobal(landingPads.build(), true);
            landingPadsPtrs.add(new ConstantBitcast(g.ref(), I8_PTR));
        }
        Global g = moduleBuilder.newGlobal(landingPadsPtrs.build(), true);
        Variable ctx = function.newVariable(TRYCATCH_CONTEXT_PTR);
        Variable bcCtx = function.newVariable(BC_TRYCATCH_CONTEXT_PTR);
        function.add(new Alloca(bcCtx, BC_TRYCATCH_CONTEXT));
        Variable selPtr = function.newVariable(new PointerType(I32));
        function.add(new Getelementptr(selPtr, bcCtx.ref(), 0, 0, 1));
        function.add(new Store(new IntegerConstant(0), selPtr.ref()));
        Variable bcCtxLandingPadsPtr = function.newVariable(I8_PTR_PTR);
        function.add(new Getelementptr(bcCtxLandingPadsPtr, bcCtx.ref(), 0, 1));
        function.add(new Store(new ConstantBitcast(g.ref(), I8_PTR), bcCtxLandingPadsPtr.ref()));
        function.add(new Bitcast(ctx, bcCtx.ref(), TRYCATCH_CONTEXT_PTR));
        trycatchContext = ctx.ref();
        Value result = call(RVM_TRYCATCH_ENTER, env, trycatchContext);
        Map<IntegerConstant, BasicBlockRef> alt = new TreeMap<IntegerConstant, BasicBlockRef>();
        for (Entry<Unit, Integer> entry : trapHandlers.entrySet()) {
            alt.put(new IntegerConstant(entry.getValue() + 1), function.newBasicBlockRef(new Label(entry.getKey())));
        }
        function.add(new Switch(result, function.newBasicBlockRef(new Label(units.getFirst())), alt));
        if (!branchTargets.containsKey(units.getFirst())) {
            function.newBasicBlock(new Label(units.getFirst()));
        }
    }
    if ("<clinit>".equals(method.getName())) {
        initializeClassFields();
    }
    for (Unit unit : units) {
        if (branchTargets.containsKey(unit) || trapHandlers.containsKey(unit)) {
            BasicBlock oldBlock = function.getCurrentBasicBlock();
            function.newBasicBlock(new Label(unit));
            if (oldBlock != null) {
                Instruction last = oldBlock.last();
                if (last == null || !isTerminator(last)) {
                    oldBlock.add(new Br(function.newBasicBlockRef(new Label(unit))));
                }
            }
        }
        if (selChanges.containsKey(unit)) {
            int sel = selChanges.get(unit);
            // trycatchContext->sel = sel
            Variable selPtr = function.newVariable(new PointerType(I32));
            function.add(new Getelementptr(selPtr, trycatchContext, 0, 1)).attach(unit);
            function.add(new Store(new IntegerConstant(sel), selPtr.ref())).attach(unit);
        }
        if (unit instanceof DefinitionStmt) {
            assign((DefinitionStmt) unit);
        } else if (unit instanceof ReturnStmt) {
            if (!body.getTraps().isEmpty()) {
                trycatchLeave(function);
            }
            return_((ReturnStmt) unit);
        } else if (unit instanceof ReturnVoidStmt) {
            if (!body.getTraps().isEmpty()) {
                trycatchLeave(function);
            }
            returnVoid((ReturnVoidStmt) unit);
        } else if (unit instanceof IfStmt) {
            if_((IfStmt) unit);
        } else if (unit instanceof LookupSwitchStmt) {
            lookupSwitch((LookupSwitchStmt) unit);
        } else if (unit instanceof TableSwitchStmt) {
            tableSwitch((TableSwitchStmt) unit);
        } else if (unit instanceof GotoStmt) {
            goto_((GotoStmt) unit);
        } else if (unit instanceof ThrowStmt) {
            throw_((ThrowStmt) unit);
        } else if (unit instanceof InvokeStmt) {
            invoke((InvokeStmt) unit);
        } else if (unit instanceof EnterMonitorStmt) {
            enterMonitor((EnterMonitorStmt) unit);
        } else if (unit instanceof ExitMonitorStmt) {
            exitMonitor((ExitMonitorStmt) unit);
        } else if (unit instanceof NopStmt) {
            nop((NopStmt) unit);
        } else {
            throw new IllegalArgumentException("Unknown Unit type: " + unit.getClass());
        }
    }
    if (this.className.equals("java/lang/Object") && "<init>".equals(method.getName())) {
        // If it is the object will be registered for finalization.
        for (BasicBlock bb : function.getBasicBlocks()) {
            if (bb.last() instanceof Ret) {
                // Insert a call to register_finalizable() before this ret
                Call call = new Call(REGISTER_FINALIZABLE, env, function.getParameterRef(1));
                call.attach(bb.last().getAttachment(Unit.class));
                bb.insertBefore(bb.last(), call);
            }
        }
    }
    return function;
}

Example 10 with Type

use of org.robovm.compiler.llvm.Type in project robovm by robovm.

the class Types method getFields.

public static List<SootField> getFields(final OS os, final Arch arch, SootClass clazz, boolean ztatic) {
    List<SootField> l = new ArrayList<SootField>();
    for (SootField f : clazz.getFields()) {
        if (ztatic == f.isStatic()) {
            l.add(f);
        }
    }
    // Sort the fields. references, volatile long, double, long, float, int, char, short, boolean, byte.
    // Fields of same type are sorted by name.
    Collections.sort(l, new Comparator<SootField>() {

        @Override
        public int compare(SootField o1, SootField o2) {
            soot.Type t1 = o1.getType();
            soot.Type t2 = o2.getType();
            if (t1 instanceof RefLikeType) {
                if (!(t2 instanceof RefLikeType)) {
                    return -1;
                }
            }
            if (t2 instanceof RefLikeType) {
                if (!(t1 instanceof RefLikeType)) {
                    return 1;
                }
            }
            // Compare alignment. Higher first.
            int align1 = getFieldAlignment(os, arch, o1);
            int align2 = getFieldAlignment(os, arch, o2);
            int c = new Integer(align2).compareTo(align1);
            if (c == 0) {
                // Compare size. Larger first.
                int size1 = getFieldSize(arch, o1);
                int size2 = getFieldSize(arch, o2);
                c = new Integer(size2).compareTo(size1);
                if (c == 0) {
                    // Compare type name.
                    c = t1.getClass().getSimpleName().compareTo(t2.getClass().getSimpleName());
                    if (c == 0) {
                        // Compare name.
                        c = o1.getName().compareTo(o2.getName());
                    }
                }
            }
            return c;
        }
    });
    return l;
}