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

Example 6 with Label

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

the class MethodCompiler method lookupSwitch.

private void lookupSwitch(LookupSwitchStmt stmt) {
    Map<IntegerConstant, BasicBlockRef> targets = new HashMap<IntegerConstant, BasicBlockRef>();
    for (int i = 0; i < stmt.getTargetCount(); i++) {
        int value = stmt.getLookupValue(i);
        Unit target = stmt.getTarget(i);
        targets.put(new IntegerConstant(value), function.newBasicBlockRef(new Label(target)));
    }
    BasicBlockRef def = function.newBasicBlockRef(new Label(stmt.getDefaultTarget()));
    Value key = immediate(stmt, (Immediate) stmt.getKey());
    function.add(new Switch(key, def, targets)).attach(stmt);
}

Example 7 with Label

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

the class GlobalValueMethodCompiler method doCompile.

protected Function doCompile(ModuleBuilder moduleBuilder, SootMethod method) {
    AnnotationTag globalValueAnnotation = getAnnotation(method, GLOBAL_VALUE);
    validateGlobalValueMethod(method, globalValueAnnotation);
    boolean optional = readBooleanElem(globalValueAnnotation, "optional", false);
    boolean dereference = readBooleanElem(globalValueAnnotation, "dereference", true);
    Function fn = createMethodFunction(method);
    moduleBuilder.addFunction(fn);
    Type valueType = getStructMemberType(method);
    // Load the address of the resolved @GlobalValue method
    Variable valuePtr = fn.newVariable(new PointerType(valueType));
    Global valuePtrPtr = new Global(Symbols.globalValuePtrSymbol(method), _private, new NullConstant(I8_PTR));
    moduleBuilder.addGlobal(valuePtrPtr);
    fn.add(new Load(valuePtr, new ConstantBitcast(valuePtrPtr.ref(), new PointerType(valuePtr.getType()))));
    Label nullLabel = new Label();
    Label notNullLabel = new Label();
    Variable nullCheck = fn.newVariable(I1);
    fn.add(new Icmp(nullCheck, Condition.eq, valuePtr.ref(), new NullConstant(valuePtr.getType())));
    fn.add(new Br(nullCheck.ref(), fn.newBasicBlockRef(nullLabel), fn.newBasicBlockRef(notNullLabel)));
    fn.newBasicBlock(nullLabel);
    VariableRef env = fn.getParameterRef(0);
    call(fn, BC_THROW_UNSATISIFED_LINK_ERROR, env, moduleBuilder.getString(String.format((optional ? "Optional " : "") + "@GlobalValue method %s.%s%s not bound", className, method.getName(), getDescriptor(method))));
    fn.add(new Unreachable());
    fn.newBasicBlock(notNullLabel);
    if (method.getParameterCount() == 0) {
        // Getter
        Value result = loadValueForGetter(method, fn, valueType, valuePtr.ref(), env, dereference, MarshalerFlags.CALL_TYPE_GLOBAL_VALUE);
        fn.add(new Ret(result));
    } else {
        // Setter
        // 'env' is parameter 0, the value we're interested in is at index 1
        Value value = fn.getParameterRef(1);
        storeValueForSetter(method, fn, valueType, valuePtr.ref(), env, value, MarshalerFlags.CALL_TYPE_GLOBAL_VALUE);
        fn.add(new Ret());
    }
    return fn;
}

Example 8 with Label

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

the class NativeMethodCompiler method createNative.

private FunctionRef createNative(ModuleBuilder mb, SootMethod method) {
    String targetInternalName = getInternalName(method.getDeclaringClass());
    String methodName = method.getName();
    String methodDesc = getDescriptor(method);
    FunctionType nativeFunctionType = Types.getNativeFunctionType(methodDesc, method.isStatic());
    String shortName = mangleNativeMethod(targetInternalName, methodName);
    String longName = mangleNativeMethod(targetInternalName, methodName, methodDesc);
    /*
         * To support statically linked native method implementation we create
         * weak stub functions with the same names as the expected JNI functions
         * (long and short names). These will be discarded by the linker if
         * proper functions are available at link time.
         * 
         * The weak stub with the short JNI name just calls the weak stub with
         * the long name.
         * 
         * The weak stub with the long name calls _bcResolveNative() which will
         * try to resolve the native method against dynamically loaded JNI libs.
         * If _bcResolveNative() finds a matching symbol in a dynamic lib or an
         * implementation has previously been registered using JNI
         * RegisterNatives() that will be stored in the native method pointer
         * passed to it and returned. The stub will call the implementation
         * returned by _bcResolveNative(). If no implementation can be found
         * _bcResolveNative() throws an UnsatisfiedLinkError and doesn't return
         * to the stub.
         * 
         * The limitation of this approach is that RegisterNatives() only works
         * for dynamically linked native methods and can only be used prior to
         * the first call of such a method. Native methods can never be rewired
         * or unregistered.
         */
    /*
         * The function with the long JNI name. This is the one that calls
         * _bcResolveNative() and then calls the implementation.
         */
    Function fn = new FunctionBuilder(longName, nativeFunctionType).linkage(weak).build();
    Global g = new Global(Symbols.nativeMethodPtrSymbol(targetInternalName, methodName, methodDesc), new NullConstant(I8_PTR));
    mb.addGlobal(g);
    FunctionRef ldcFn = FunctionBuilder.ldcInternal(targetInternalName).ref();
    Value theClass = call(fn, ldcFn, fn.getParameterRef(0));
    Value implI8Ptr = call(fn, BC_RESOLVE_NATIVE, fn.getParameterRef(0), theClass, mb.getString(methodName), mb.getString(methodDesc), mb.getString(shortName), mb.getString(longName), g.ref());
    Variable nullTest = fn.newVariable(I1);
    fn.add(new Icmp(nullTest, Condition.ne, implI8Ptr, new NullConstant(I8_PTR)));
    Label trueLabel = new Label();
    Label falseLabel = new Label();
    fn.add(new Br(nullTest.ref(), fn.newBasicBlockRef(trueLabel), fn.newBasicBlockRef(falseLabel)));
    fn.newBasicBlock(falseLabel);
    if (fn.getType().getReturnType() instanceof IntegerType) {
        fn.add(new Ret(new IntegerConstant(0, (IntegerType) fn.getType().getReturnType())));
    } else if (fn.getType().getReturnType() instanceof FloatingPointType) {
        fn.add(new Ret(new FloatingPointConstant(0.0, (FloatingPointType) fn.getType().getReturnType())));
    } else if (fn.getType().getReturnType() instanceof PointerType) {
        fn.add(new Ret(new NullConstant((PointerType) fn.getType().getReturnType())));
    } else {
        fn.add(new Ret());
    }
    fn.newBasicBlock(trueLabel);
    Variable impl = fn.newVariable(nativeFunctionType);
    fn.add(new Bitcast(impl, implI8Ptr, impl.getType()));
    Value result = call(fn, impl.ref(), fn.getParameterRefs());
    fn.add(new Ret(result));
    mb.addFunction(fn);
    FunctionRef targetFn = fn.ref();
    if (!isLongNativeFunctionNameRequired(method)) {
        /*
             * Generate a function with the short JNI name. This just calls the
             * function with the long name.
             */
        Function fnShort = new FunctionBuilder(shortName, nativeFunctionType).linkage(weak).build();
        Value resultInner = call(fnShort, fn.ref(), fnShort.getParameterRefs());
        fnShort.add(new Ret(resultInner));
        mb.addFunction(fnShort);
        targetFn = fnShort.ref();
    }
    return targetFn;
}

Example 9 with Label

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

the class MethodCompiler method if_.

private void if_(IfStmt stmt) {
    ConditionExpr condition = (ConditionExpr) stmt.getCondition();
    Value op1 = immediate(stmt, (Immediate) condition.getOp1());
    Value op2 = immediate(stmt, (Immediate) condition.getOp2());
    Icmp.Condition c = null;
    if (condition instanceof EqExpr) {
        c = Icmp.Condition.eq;
    } else if (condition instanceof NeExpr) {
        c = Icmp.Condition.ne;
    } else if (condition instanceof GtExpr) {
        c = Icmp.Condition.sgt;
    } else if (condition instanceof LtExpr) {
        c = Icmp.Condition.slt;
    } else if (condition instanceof GeExpr) {
        c = Icmp.Condition.sge;
    } else if (condition instanceof LeExpr) {
        c = Icmp.Condition.sle;
    }
    Variable result = function.newVariable(Type.I1);
    function.add(new Icmp(result, c, op1, op2)).attach(stmt);
    Unit nextUnit = sootMethod.getActiveBody().getUnits().getSuccOf(stmt);
    function.add(new Br(new VariableRef(result), function.newBasicBlockRef(new Label(stmt.getTarget())), function.newBasicBlockRef(new Label(nextUnit)))).attach(stmt);
}

Example 10 with Label

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

the class AbstractMethodCompiler method compileSynchronizedWrapper.

private void compileSynchronizedWrapper(ModuleBuilder moduleBuilder, SootMethod method) {
    String targetName = Symbols.methodSymbol(method);
    Function syncFn = FunctionBuilder.synchronizedWrapper(method);
    moduleBuilder.addFunction(syncFn);
    FunctionType functionType = syncFn.getType();
    FunctionRef target = new FunctionRef(targetName, functionType);
    Value monitor = null;
    if (method.isStatic()) {
        FunctionRef fn = FunctionBuilder.ldcInternal(sootMethod.getDeclaringClass()).ref();
        monitor = call(syncFn, fn, syncFn.getParameterRef(0));
    } else {
        monitor = syncFn.getParameterRef(1);
    }
    call(syncFn, MONITORENTER, syncFn.getParameterRef(0), monitor);
    BasicBlockRef bbSuccess = syncFn.newBasicBlockRef(new Label("success"));
    BasicBlockRef bbFailure = syncFn.newBasicBlockRef(new Label("failure"));
    trycatchAllEnter(syncFn, bbSuccess, bbFailure);
    syncFn.newBasicBlock(bbSuccess.getLabel());
    Value result = call(syncFn, target, syncFn.getParameterRefs());
    trycatchLeave(syncFn);
    call(syncFn, MONITOREXIT, syncFn.getParameterRef(0), monitor);
    syncFn.add(new Ret(result));
    syncFn.newBasicBlock(bbFailure.getLabel());
    trycatchLeave(syncFn);
    call(syncFn, MONITOREXIT, syncFn.getParameterRef(0), monitor);
    call(syncFn, BC_THROW_IF_EXCEPTION_OCCURRED, syncFn.getParameterRef(0));
    syncFn.add(new Unreachable());
}