changeset 14854:9edc187e695e

Merge
author amurillo
date Fri, 21 Dec 2012 10:27:22 -0800
parents a6f1710f3fec 72f0bc58bb95
children ee8e64d2ea04
files
diffstat 5 files changed, 144 insertions(+), 7 deletions(-) [+]
line wrap: on
line diff
--- a/jdk/src/share/classes/java/lang/invoke/InvokerBytecodeGenerator.java	Thu Dec 20 09:18:20 2012 -0800
+++ b/jdk/src/share/classes/java/lang/invoke/InvokerBytecodeGenerator.java	Fri Dec 21 10:27:22 2012 -0800
@@ -295,9 +295,6 @@
 
         String invokerDesc = invokerType.toMethodDescriptorString();
         mv = cw.visitMethod(Opcodes.ACC_STATIC, invokerName, invokerDesc, null, null);
-
-        // Force inlining of this invoker method.
-        mv.visitAnnotation("Ljava/lang/invoke/ForceInline;", true);
     }
 
     /**
@@ -524,6 +521,9 @@
         // Mark this method as a compiled LambdaForm
         mv.visitAnnotation("Ljava/lang/invoke/LambdaForm$Compiled;", true);
 
+        // Force inlining of this invoker method.
+        mv.visitAnnotation("Ljava/lang/invoke/ForceInline;", true);
+
         // iterate over the form's names, generating bytecode instructions for each
         // start iterating at the first name following the arguments
         for (int i = lambdaForm.arity; i < lambdaForm.names.length; i++) {
@@ -943,6 +943,9 @@
         // Suppress this method in backtraces displayed to the user.
         mv.visitAnnotation("Ljava/lang/invoke/LambdaForm$Hidden;", true);
 
+        // Don't inline the interpreter entry.
+        mv.visitAnnotation("Ljava/lang/invoke/DontInline;", true);
+
         // create parameter array
         emitIconstInsn(invokerType.parameterCount());
         mv.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Object");
@@ -1005,6 +1008,9 @@
         // Suppress this method in backtraces displayed to the user.
         mv.visitAnnotation("Ljava/lang/invoke/LambdaForm$Hidden;", true);
 
+        // Force inlining of this invoker method.
+        mv.visitAnnotation("Ljava/lang/invoke/ForceInline;", true);
+
         // Load receiver
         emitAloadInsn(0);
 
--- a/jdk/src/share/classes/java/lang/invoke/LambdaForm.java	Thu Dec 20 09:18:20 2012 -0800
+++ b/jdk/src/share/classes/java/lang/invoke/LambdaForm.java	Fri Dec 21 10:27:22 2012 -0800
@@ -592,6 +592,7 @@
     private int invocationCounter = 0;
 
     @Hidden
+    @DontInline
     /** Interpretively invoke this form on the given arguments. */
     Object interpretWithArguments(Object... argumentValues) throws Throwable {
         if (TRACE_INTERPRETER)
@@ -606,6 +607,7 @@
     }
 
     @Hidden
+    @DontInline
     /** Evaluate a single Name within this form, applying its function to its arguments. */
     Object interpretName(Name name, Object[] values) throws Throwable {
         if (TRACE_INTERPRETER)
--- a/jdk/src/share/classes/java/lang/invoke/MethodHandleImpl.java	Thu Dec 20 09:18:20 2012 -0800
+++ b/jdk/src/share/classes/java/lang/invoke/MethodHandleImpl.java	Fri Dec 21 10:27:22 2012 -0800
@@ -310,9 +310,9 @@
     }
 
     static class AsVarargsCollector extends MethodHandle {
-        MethodHandle target;
-        final Class<?> arrayType;
-        MethodHandle cache;
+        private final MethodHandle target;
+        private final Class<?> arrayType;
+        private MethodHandle cache;
 
         AsVarargsCollector(MethodHandle target, MethodType type, Class<?> arrayType) {
             super(type, reinvokerForm(type));
--- a/jdk/src/share/classes/sun/invoke/util/ValueConversions.java	Thu Dec 20 09:18:20 2012 -0800
+++ b/jdk/src/share/classes/sun/invoke/util/ValueConversions.java	Fri Dec 21 10:27:22 2012 -0800
@@ -449,8 +449,16 @@
      * @param x an arbitrary reference value
      * @return the same value x
      */
+    @SuppressWarnings("unchecked")
     static <T,U> T castReference(Class<? extends T> t, U x) {
-        return t.cast(x);
+        // inlined Class.cast because we can't ForceInline it
+        if (x != null && !t.isInstance(x))
+            throw newClassCastException(t, x);
+        return (T) x;
+    }
+
+    private static ClassCastException newClassCastException(Class<?> t, Object obj) {
+        return new ClassCastException("Cannot cast " + obj.getClass().getName() + " to " + t.getName());
     }
 
     private static final MethodHandle IDENTITY, CAST_REFERENCE, ZERO_OBJECT, IGNORE, EMPTY,
--- a/jdk/src/share/classes/sun/misc/Unsafe.java	Thu Dec 20 09:18:20 2012 -0800
+++ b/jdk/src/share/classes/sun/misc/Unsafe.java	Fri Dec 21 10:27:22 2012 -0800
@@ -1008,4 +1008,125 @@
      *         if the load average is unobtainable.
      */
     public native int getLoadAverage(double[] loadavg, int nelems);
+
+    // The following contain CAS-based Java implementations used on
+    // platforms not supporting native instructions
+
+    /**
+     * Atomically adds the given value to the current value of a field
+     * or array element within the given object <code>o</code>
+     * at the given <code>offset</code>.
+     *
+     * @param o object/array to update the field/element in
+     * @param offset field/element offset
+     * @param delta the value to add
+     * @return the previous value
+     * @since 1.8
+     */
+    public final int getAndAddInt(Object o, long offset, int delta) {
+        int v;
+        do {
+            v = getIntVolatile(o, offset);
+        } while (!compareAndSwapInt(o, offset, v, v + delta));
+        return v;
+    }
+
+    /**
+     * Atomically adds the given value to the current value of a field
+     * or array element within the given object <code>o</code>
+     * at the given <code>offset</code>.
+     *
+     * @param o object/array to update the field/element in
+     * @param offset field/element offset
+     * @param delta the value to add
+     * @return the previous value
+     * @since 1.8
+     */
+    public final long getAndAddLong(Object o, long offset, long delta) {
+        long v;
+        do {
+            v = getLongVolatile(o, offset);
+        } while (!compareAndSwapLong(o, offset, v, v + delta));
+        return v;
+    }
+
+    /**
+     * Atomically exchanges the given value with the current value of
+     * a field or array element within the given object <code>o</code>
+     * at the given <code>offset</code>.
+     *
+     * @param o object/array to update the field/element in
+     * @param offset field/element offset
+     * @param newValue new value
+     * @return the previous value
+     * @since 1.8
+     */
+    public final int getAndSetInt(Object o, long offset, int newValue) {
+        int v;
+        do {
+            v = getIntVolatile(o, offset);
+        } while (!compareAndSwapInt(o, offset, v, newValue));
+        return v;
+    }
+
+    /**
+     * Atomically exchanges the given value with the current value of
+     * a field or array element within the given object <code>o</code>
+     * at the given <code>offset</code>.
+     *
+     * @param o object/array to update the field/element in
+     * @param offset field/element offset
+     * @param newValue new value
+     * @return the previous value
+     * @since 1.8
+     */
+    public final long getAndSetLong(Object o, long offset, long newValue) {
+        long v;
+        do {
+            v = getLongVolatile(o, offset);
+        } while (!compareAndSwapLong(o, offset, v, newValue));
+        return v;
+    }
+
+    /**
+     * Atomically exchanges the given reference value with the current
+     * reference value of a field or array element within the given
+     * object <code>o</code> at the given <code>offset</code>.
+     *
+     * @param o object/array to update the field/element in
+     * @param offset field/element offset
+     * @param newValue new value
+     * @return the previous value
+     * @since 1.8
+     */
+    public final Object getAndSetObject(Object o, long offset, Object newValue) {
+        Object v;
+        do {
+            v = getObjectVolatile(o, offset);
+        } while (!compareAndSwapObject(o, offset, v, newValue));
+        return v;
+    }
+
+
+    /**
+     * Ensures lack of reordering of loads before the fence
+     * with loads or stores after the fence.
+     * @since 1.8
+     */
+    public native void loadFence();
+
+    /**
+     * Ensures lack of reordering of stores before the fence
+     * with loads or stores after the fence.
+     * @since 1.8
+     */
+    public native void storeFence();
+
+    /**
+     * Ensures lack of reordering of loads or stores before the fence
+     * with loads or stores after the fence.
+     * @since 1.8
+     */
+    public native void fullFence();
+
 }