| /* |
| * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test TestStableChar |
| * @summary tests on stable fields and arrays |
| * @library /test/lib / |
| * @modules java.base/jdk.internal.misc |
| * @modules java.base/jdk.internal.vm.annotation |
| * @build sun.hotspot.WhiteBox |
| * |
| * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp |
| * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
| * -XX:-TieredCompilation |
| * -XX:+FoldStableValues |
| * compiler.stable.TestStableChar |
| * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp |
| * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
| * -XX:-TieredCompilation |
| * -XX:+FoldStableValues |
| * compiler.stable.TestStableChar |
| * |
| * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp |
| * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
| * -XX:-TieredCompilation |
| * -XX:+FoldStableValues |
| * compiler.stable.TestStableChar |
| * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp |
| * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4 |
| * -XX:-TieredCompilation |
| * -XX:+FoldStableValues |
| * compiler.stable.TestStableChar |
| */ |
| |
| package compiler.stable; |
| |
| import jdk.internal.vm.annotation.Stable; |
| |
| import java.lang.reflect.InvocationTargetException; |
| |
| public class TestStableChar { |
| static final boolean isStableEnabled = StableConfiguration.isStableEnabled; |
| |
| public static void main(String[] args) throws Exception { |
| run(DefaultValue.class); |
| run(CharStable.class); |
| run(DefaultStaticValue.class); |
| run(StaticCharStable.class); |
| run(VolatileCharStable.class); |
| |
| // @Stable arrays: Dim 1-4 |
| run(CharArrayDim1.class); |
| run(CharArrayDim2.class); |
| run(CharArrayDim3.class); |
| run(CharArrayDim4.class); |
| |
| // @Stable Object field: dynamic arrays |
| run(ObjectArrayLowerDim0.class); |
| run(ObjectArrayLowerDim1.class); |
| run(ObjectArrayLowerDim2.class); |
| |
| // Nested @Stable fields |
| run(NestedStableField.class); |
| run(NestedStableField1.class); |
| run(NestedStableField2.class); |
| run(NestedStableField3.class); |
| |
| if (failed) { |
| throw new Error("TEST FAILED"); |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class DefaultValue { |
| public @Stable char v; |
| |
| public static final DefaultValue c = new DefaultValue(); |
| public static char get() { return c.v; } |
| public static void test() throws Exception { |
| char val1 = get(); |
| c.v = 'a'; char val2 = get(); |
| assertEquals(val1, 0); |
| assertEquals(val2, 'a'); |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class CharStable { |
| public @Stable char v; |
| |
| public static final CharStable c = new CharStable(); |
| public static char get() { return c.v; } |
| public static void test() throws Exception { |
| c.v = 'a'; char val1 = get(); |
| c.v = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class DefaultStaticValue { |
| public static @Stable char v; |
| |
| public static final DefaultStaticValue c = new DefaultStaticValue(); |
| public static char get() { return c.v; } |
| public static void test() throws Exception { |
| char val1 = get(); |
| c.v = 'a'; char val2 = get(); |
| assertEquals(val1, 0); |
| assertEquals(val2, 'a'); |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class StaticCharStable { |
| public @Stable char v; |
| |
| public static final StaticCharStable c = new StaticCharStable(); |
| public static char get() { return c.v; } |
| public static void test() throws Exception { |
| c.v = 'a'; char val1 = get(); |
| c.v = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class VolatileCharStable { |
| public @Stable volatile char v; |
| |
| public static final VolatileCharStable c = new VolatileCharStable(); |
| public static char get() { return c.v; } |
| public static void test() throws Exception { |
| c.v = 'a'; char val1 = get(); |
| c.v = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| } |
| } |
| |
| /* ==================================================== */ |
| // @Stable array == field && all components are stable |
| |
| static class CharArrayDim1 { |
| public @Stable char[] v; |
| |
| public static final CharArrayDim1 c = new CharArrayDim1(); |
| public static char get() { return c.v[0]; } |
| public static char get1() { return c.v[10]; } |
| public static char[] get2() { return c.v; } |
| public static void test() throws Exception { |
| { |
| c.v = new char[1]; c.v[0] = 'a'; char val1 = get(); |
| c.v[0] = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| |
| c.v = new char[1]; c.v[0] = 'c'; char val3 = get(); |
| assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'c')); |
| } |
| |
| { |
| c.v = new char[20]; c.v[10] = 'a'; char val1 = get1(); |
| c.v[10] = 'b'; char val2 = get1(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| |
| c.v = new char[20]; c.v[10] = 'c'; char val3 = get1(); |
| assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'c')); |
| } |
| |
| { |
| c.v = new char[1]; char[] val1 = get2(); |
| c.v = new char[1]; char[] val2 = get2(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class CharArrayDim2 { |
| public @Stable char[][] v; |
| |
| public static final CharArrayDim2 c = new CharArrayDim2(); |
| public static char get() { return c.v[0][0]; } |
| public static char[] get1() { return c.v[0]; } |
| public static char[][] get2() { return c.v; } |
| public static void test() throws Exception { |
| { |
| c.v = new char[1][1]; c.v[0][0] = 'a'; char val1 = get(); |
| c.v[0][0] = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| |
| c.v = new char[1][1]; c.v[0][0] = 'c'; char val3 = get(); |
| assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'c')); |
| |
| c.v[0] = new char[1]; c.v[0][0] = 'd'; char val4 = get(); |
| assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'd')); |
| } |
| |
| { |
| c.v = new char[1][1]; char[] val1 = get1(); |
| c.v[0] = new char[1]; char[] val2 = get1(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1]; char[][] val1 = get2(); |
| c.v = new char[1][1]; char[][] val2 = get2(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class CharArrayDim3 { |
| public @Stable char[][][] v; |
| |
| public static final CharArrayDim3 c = new CharArrayDim3(); |
| public static char get() { return c.v[0][0][0]; } |
| public static char[] get1() { return c.v[0][0]; } |
| public static char[][] get2() { return c.v[0]; } |
| public static char[][][] get3() { return c.v; } |
| public static void test() throws Exception { |
| { |
| c.v = new char[1][1][1]; c.v[0][0][0] = 'a'; char val1 = get(); |
| c.v[0][0][0] = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| |
| c.v = new char[1][1][1]; c.v[0][0][0] = 'c'; char val3 = get(); |
| assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'c')); |
| |
| c.v[0] = new char[1][1]; c.v[0][0][0] = 'd'; char val4 = get(); |
| assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'd')); |
| |
| c.v[0][0] = new char[1]; c.v[0][0][0] = 'e'; char val5 = get(); |
| assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'e')); |
| } |
| |
| { |
| c.v = new char[1][1][1]; char[] val1 = get1(); |
| c.v[0][0] = new char[1]; char[] val2 = get1(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1][1]; char[][] val1 = get2(); |
| c.v[0] = new char[1][1]; char[][] val2 = get2(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1][1]; char[][][] val1 = get3(); |
| c.v = new char[1][1][1]; char[][][] val2 = get3(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class CharArrayDim4 { |
| public @Stable char[][][][] v; |
| |
| public static final CharArrayDim4 c = new CharArrayDim4(); |
| public static char get() { return c.v[0][0][0][0]; } |
| public static char[] get1() { return c.v[0][0][0]; } |
| public static char[][] get2() { return c.v[0][0]; } |
| public static char[][][] get3() { return c.v[0]; } |
| public static char[][][][] get4() { return c.v; } |
| public static void test() throws Exception { |
| { |
| c.v = new char[1][1][1][1]; c.v[0][0][0][0] = 'a'; char val1 = get(); |
| c.v[0][0][0][0] = 'b'; char val2 = get(); |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| |
| c.v = new char[1][1][1][1]; c.v[0][0][0][0] = 'c'; char val3 = get(); |
| assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'c')); |
| |
| c.v[0] = new char[1][1][1]; c.v[0][0][0][0] = 'd'; char val4 = get(); |
| assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'd')); |
| |
| c.v[0][0] = new char[1][1]; c.v[0][0][0][0] = 'e'; char val5 = get(); |
| assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'e')); |
| |
| c.v[0][0][0] = new char[1]; c.v[0][0][0][0] = 'f'; char val6 = get(); |
| assertEquals(val6, (isStableEnabled ? (isStableEnabled ? 'a' : 'b') |
| : 'f')); |
| } |
| |
| { |
| c.v = new char[1][1][1][1]; char[] val1 = get1(); |
| c.v[0][0][0] = new char[1]; char[] val2 = get1(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1][1][1]; char[][] val1 = get2(); |
| c.v[0][0] = new char[1][1]; char[][] val2 = get2(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1][1][1]; char[][][] val1 = get3(); |
| c.v[0] = new char[1][1][1]; char[][][] val2 = get3(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1][1][1]; char[][][][] val1 = get4(); |
| c.v = new char[1][1][1][1]; char[][][][] val2 = get4(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| // Dynamic Dim is higher than static |
| static class ObjectArrayLowerDim0 { |
| public @Stable Object v; |
| |
| public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0(); |
| public static char get() { return ((char[])c.v)[0]; } |
| public static char[] get1() { return (char[])c.v; } |
| |
| public static void test() throws Exception { |
| { |
| c.v = new char[1]; ((char[])c.v)[0] = 'a'; char val1 = get(); |
| ((char[])c.v)[0] = 'b'; char val2 = get(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val2, 'b'); |
| } |
| |
| { |
| c.v = new char[1]; char[] val1 = get1(); |
| c.v = new char[1]; char[] val2 = get1(); |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class ObjectArrayLowerDim1 { |
| public @Stable Object[] v; |
| |
| public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1(); |
| public static char get() { return ((char[][])c.v)[0][0]; } |
| public static char[] get1() { return (char[])(c.v[0]); } |
| public static Object[] get2() { return c.v; } |
| |
| public static void test() throws Exception { |
| { |
| c.v = new char[1][1]; ((char[][])c.v)[0][0] = 'a'; char val1 = get(); |
| ((char[][])c.v)[0][0] = 'b'; char val2 = get(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val2, 'b'); |
| } |
| |
| { |
| c.v = new char[1][1]; c.v[0] = new char[0]; char[] val1 = get1(); |
| c.v[0] = new char[0]; char[] val2 = get1(); |
| |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[0][0]; Object[] val1 = get2(); |
| c.v = new char[0][0]; Object[] val2 = get2(); |
| |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class ObjectArrayLowerDim2 { |
| public @Stable Object[][] v; |
| |
| public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2(); |
| public static char get() { return ((char[][][])c.v)[0][0][0]; } |
| public static char[] get1() { return (char[])(c.v[0][0]); } |
| public static char[][] get2() { return (char[][])(c.v[0]); } |
| public static Object[][] get3() { return c.v; } |
| |
| public static void test() throws Exception { |
| { |
| c.v = new char[1][1][1]; ((char[][][])c.v)[0][0][0] = 'a'; char val1 = get(); |
| ((char[][][])c.v)[0][0][0] = 'b'; char val2 = get(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val2, 'b'); |
| } |
| |
| { |
| c.v = new char[1][1][1]; c.v[0][0] = new char[0]; char[] val1 = get1(); |
| c.v[0][0] = new char[0]; char[] val2 = get1(); |
| |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[1][1][1]; c.v[0] = new char[0][0]; char[][] val1 = get2(); |
| c.v[0] = new char[0][0]; char[][] val2 = get2(); |
| |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| |
| { |
| c.v = new char[0][0][0]; Object[][] val1 = get3(); |
| c.v = new char[0][0][0]; Object[][] val2 = get3(); |
| |
| assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2))); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class NestedStableField { |
| static class A { |
| public @Stable char a; |
| |
| } |
| public @Stable A v; |
| |
| public static final NestedStableField c = new NestedStableField(); |
| public static A get() { return c.v; } |
| public static char get1() { return get().a; } |
| |
| public static void test() throws Exception { |
| { |
| c.v = new A(); c.v.a = 'a'; A val1 = get(); |
| c.v.a = 'b'; A val2 = get(); |
| |
| assertEquals(val1.a, 'b'); |
| assertEquals(val2.a, 'b'); |
| } |
| |
| { |
| c.v = new A(); c.v.a = 'a'; char val1 = get1(); |
| c.v.a = 'b'; char val2 = get1(); |
| c.v = new A(); c.v.a = 'c'; char val3 = get1(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| assertEquals(val3, (isStableEnabled ? 'a' : 'c')); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class NestedStableField1 { |
| static class A { |
| public @Stable char a; |
| public @Stable A next; |
| } |
| public @Stable A v; |
| |
| public static final NestedStableField1 c = new NestedStableField1(); |
| public static A get() { return c.v.next.next.next.next.next.next.next; } |
| public static char get1() { return get().a; } |
| |
| public static void test() throws Exception { |
| { |
| c.v = new A(); c.v.next = new A(); c.v.next.next = c.v; |
| c.v.a = 'a'; c.v.next.a = 'a'; A val1 = get(); |
| c.v.a = 'b'; c.v.next.a = 'b'; A val2 = get(); |
| |
| assertEquals(val1.a, 'b'); |
| assertEquals(val2.a, 'b'); |
| } |
| |
| { |
| c.v = new A(); c.v.next = c.v; |
| c.v.a = 'a'; char val1 = get1(); |
| c.v.a = 'b'; char val2 = get1(); |
| c.v = new A(); c.v.next = c.v; |
| c.v.a = 'c'; char val3 = get1(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val2, (isStableEnabled ? 'a' : 'b')); |
| assertEquals(val3, (isStableEnabled ? 'a' : 'c')); |
| } |
| } |
| } |
| /* ==================================================== */ |
| |
| static class NestedStableField2 { |
| static class A { |
| public @Stable char a; |
| public @Stable A left; |
| public A right; |
| } |
| |
| public @Stable A v; |
| |
| public static final NestedStableField2 c = new NestedStableField2(); |
| public static char get() { return c.v.left.left.left.a; } |
| public static char get1() { return c.v.left.left.right.left.a; } |
| |
| public static void test() throws Exception { |
| { |
| c.v = new A(); c.v.left = c.v.right = c.v; |
| c.v.a = 'a'; char val1 = get(); char val2 = get1(); |
| c.v.a = 'b'; char val3 = get(); char val4 = get1(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val3, (isStableEnabled ? 'a' : 'b')); |
| |
| assertEquals(val2, 'a'); |
| assertEquals(val4, 'b'); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| |
| static class NestedStableField3 { |
| static class A { |
| public @Stable char a; |
| public @Stable A[] left; |
| public A[] right; |
| } |
| |
| public @Stable A[] v; |
| |
| public static final NestedStableField3 c = new NestedStableField3(); |
| public static char get() { return c.v[0].left[1].left[0].left[1].a; } |
| public static char get1() { return c.v[1].left[0].left[1].right[0].left[1].a; } |
| |
| public static void test() throws Exception { |
| { |
| A elem = new A(); |
| c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v; |
| elem.a = 'a'; char val1 = get(); char val2 = get1(); |
| elem.a = 'b'; char val3 = get(); char val4 = get1(); |
| |
| assertEquals(val1, 'a'); |
| assertEquals(val3, (isStableEnabled ? 'a' : 'b')); |
| |
| assertEquals(val2, 'a'); |
| assertEquals(val4, 'b'); |
| } |
| } |
| } |
| |
| /* ==================================================== */ |
| // Auxiliary methods |
| static void assertEquals(int i, int j) { if (i != j) throw new AssertionError(i + " != " + j); } |
| static void assertTrue(boolean b) { if (!b) throw new AssertionError(); } |
| |
| static boolean failed = false; |
| |
| public static void run(Class<?> test) { |
| Throwable ex = null; |
| System.out.print(test.getName()+": "); |
| try { |
| test.getMethod("test").invoke(null); |
| } catch (InvocationTargetException e) { |
| ex = e.getCause(); |
| } catch (Throwable e) { |
| ex = e; |
| } finally { |
| if (ex == null) { |
| System.out.println("PASSED"); |
| } else { |
| failed = true; |
| System.out.println("FAILED"); |
| ex.printStackTrace(System.out); |
| } |
| } |
| } |
| } |