/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.lang.reflect.Method;
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public class Main {
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private static Class main2;
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/// CHECK-START: int Main.rotateLeftByte(byte, int) builder (after)
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/// CHECK: <<ArgVal:b\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateLeft
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftByte(byte, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:b\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<NegDist:i\d+>> Neg [<<ArgDist>>]
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<NegDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftByte(byte, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateLeftByte(byte value, int distance) {
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return Integer.rotateLeft(value, distance);
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}
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/// CHECK-START: int Main.rotateLeftShort(short, int) builder (after)
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/// CHECK: <<ArgVal:s\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateLeft
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftShort(short, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:s\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<NegDist:i\d+>> Neg [<<ArgDist>>]
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<NegDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftShort(short, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateLeftShort(short value, int distance) {
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return Integer.rotateLeft(value, distance);
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}
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/// CHECK-START: int Main.rotateLeftChar(char, int) builder (after)
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/// CHECK: <<ArgVal:c\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateLeft
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftChar(char, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:c\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<NegDist:i\d+>> Neg [<<ArgDist>>]
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<NegDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftChar(char, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateLeftChar(char value, int distance) {
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return Integer.rotateLeft(value, distance);
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}
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/// CHECK-START: int Main.rotateLeftInt(int, int) builder (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateLeft
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftInt(int, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<NegDist:i\d+>> Neg [<<ArgDist>>]
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<NegDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftInt(int, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateLeftInt(int value, int distance) {
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return Integer.rotateLeft(value, distance);
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}
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/// CHECK-START: long Main.rotateLeftLong(long, int) builder (after)
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/// CHECK: <<ArgVal:j\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:j\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:LongRotateLeft
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: long Main.rotateLeftLong(long, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:j\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<NegDist:i\d+>> Neg [<<ArgDist>>]
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/// CHECK-DAG: <<Result:j\d+>> Ror [<<ArgVal>>,<<NegDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: long Main.rotateLeftLong(long, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static long rotateLeftLong(long value, int distance) {
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return Long.rotateLeft(value, distance);
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}
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/// CHECK-START: int Main.rotateRightByte(byte, int) builder (after)
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/// CHECK: <<ArgVal:b\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateRight
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightByte(byte, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:b\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<ArgDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightByte(byte, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateRightByte(byte value, int distance) {
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return Integer.rotateRight(value, distance);
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}
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/// CHECK-START: int Main.rotateRightShort(short, int) builder (after)
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/// CHECK: <<ArgVal:s\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateRight
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightShort(short, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:s\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<ArgDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightShort(short, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateRightShort(short value, int distance) {
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return Integer.rotateRight(value, distance);
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}
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/// CHECK-START: int Main.rotateRightChar(char, int) builder (after)
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/// CHECK: <<ArgVal:c\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateRight
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightChar(char, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:c\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<ArgDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightChar(char, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateRightChar(char value, int distance) {
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return Integer.rotateRight(value, distance);
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}
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/// CHECK-START: int Main.rotateRightInt(int, int) builder (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateRight
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightInt(int, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<ArgDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightInt(int, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateRightInt(int value, int distance) {
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return Integer.rotateRight(value, distance);
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}
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/// CHECK-START: long Main.rotateRightLong(long, int) builder (after)
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/// CHECK: <<ArgVal:j\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:j\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:LongRotateRight
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: long Main.rotateRightLong(long, int) instruction_simplifier (after)
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/// CHECK: <<ArgVal:j\d+>> ParameterValue
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/// CHECK: <<ArgDist:i\d+>> ParameterValue
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/// CHECK-DAG: <<Result:j\d+>> Ror [<<ArgVal>>,<<ArgDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: long Main.rotateRightLong(long, int) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static long rotateRightLong(long value, int distance) {
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return Long.rotateRight(value, distance);
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}
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/// CHECK-START: int Main.rotateLeftIntWithByteDistance(int, byte) builder (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:b\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateLeft
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftIntWithByteDistance(int, byte) instruction_simplifier (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:b\d+>> ParameterValue
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/// CHECK-DAG: <<NegDist:i\d+>> Neg [<<ArgDist>>]
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<NegDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateLeftIntWithByteDistance(int, byte) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateLeftIntWithByteDistance(int value, byte distance) {
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return Integer.rotateLeft(value, distance);
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}
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/// CHECK-START: int Main.rotateRightIntWithByteDistance(int, byte) builder (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:b\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> InvokeStaticOrDirect [<<ArgVal>>,<<ArgDist>>{{(,[ij]\d+)?}}] intrinsic:IntegerRotateRight
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightIntWithByteDistance(int, byte) instruction_simplifier (after)
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/// CHECK: <<ArgVal:i\d+>> ParameterValue
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/// CHECK: <<ArgDist:b\d+>> ParameterValue
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/// CHECK-DAG: <<Result:i\d+>> Ror [<<ArgVal>>,<<ArgDist>>]
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/// CHECK-DAG: Return [<<Result>>]
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/// CHECK-START: int Main.rotateRightIntWithByteDistance(int, byte) instruction_simplifier (after)
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/// CHECK-NOT: InvokeStaticOrDirect
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private static int rotateRightIntWithByteDistance(int value, byte distance) {
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return Integer.rotateRight(value, distance);
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}
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public static void testRotateLeftBoolean() throws Exception {
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Method rotateLeftBoolean = main2.getMethod("rotateLeftBoolean", boolean.class, int.class);
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0, (int)rotateLeftBoolean.invoke(null, false, i));
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expectEqualsInt(1 << i, (int)rotateLeftBoolean.invoke(null, true, i));
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}
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}
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public static void testRotateLeftByte() {
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expectEqualsInt(0x00000001, rotateLeftByte((byte)0x01, 0));
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expectEqualsInt(0x00000002, rotateLeftByte((byte)0x01, 1));
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expectEqualsInt(0x80000000, rotateLeftByte((byte)0x01, 31));
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expectEqualsInt(0x00000001, rotateLeftByte((byte)0x01, 32)); // overshoot
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expectEqualsInt(0xFFFFFF03, rotateLeftByte((byte)0x81, 1));
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expectEqualsInt(0xFFFFFE07, rotateLeftByte((byte)0x81, 2));
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expectEqualsInt(0x00000120, rotateLeftByte((byte)0x12, 4));
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expectEqualsInt(0xFFFF9AFF, rotateLeftByte((byte)0x9A, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateLeftByte((byte)0x0000, i));
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expectEqualsInt(0xFFFFFFFF, rotateLeftByte((byte)0xFFFF, i));
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expectEqualsInt((1 << j), rotateLeftByte((byte)0x0001, i));
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expectEqualsInt((0x12 << j) | (0x12 >>> -j), rotateLeftByte((byte)0x12, i));
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}
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}
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public static void testRotateLeftShort() {
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expectEqualsInt(0x00000001, rotateLeftShort((short)0x0001, 0));
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expectEqualsInt(0x00000002, rotateLeftShort((short)0x0001, 1));
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expectEqualsInt(0x80000000, rotateLeftShort((short)0x0001, 31));
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expectEqualsInt(0x00000001, rotateLeftShort((short)0x0001, 32)); // overshoot
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expectEqualsInt(0xFFFF0003, rotateLeftShort((short)0x8001, 1));
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expectEqualsInt(0xFFFE0007, rotateLeftShort((short)0x8001, 2));
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expectEqualsInt(0x00012340, rotateLeftShort((short)0x1234, 4));
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expectEqualsInt(0xFF9ABCFF, rotateLeftShort((short)0x9ABC, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateLeftShort((short)0x0000, i));
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expectEqualsInt(0xFFFFFFFF, rotateLeftShort((short)0xFFFF, i));
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expectEqualsInt((1 << j), rotateLeftShort((short)0x0001, i));
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expectEqualsInt((0x1234 << j) | (0x1234 >>> -j), rotateLeftShort((short)0x1234, i));
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}
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}
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public static void testRotateLeftChar() {
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expectEqualsInt(0x00000001, rotateLeftChar((char)0x0001, 0));
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expectEqualsInt(0x00000002, rotateLeftChar((char)0x0001, 1));
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expectEqualsInt(0x80000000, rotateLeftChar((char)0x0001, 31));
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expectEqualsInt(0x00000001, rotateLeftChar((char)0x0001, 32)); // overshoot
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expectEqualsInt(0x00010002, rotateLeftChar((char)0x8001, 1));
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expectEqualsInt(0x00020004, rotateLeftChar((char)0x8001, 2));
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expectEqualsInt(0x00012340, rotateLeftChar((char)0x1234, 4));
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expectEqualsInt(0x009ABC00, rotateLeftChar((char)0x9ABC, 8));
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expectEqualsInt(0x00FF0000, rotateLeftChar((char)0xFF00, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateLeftChar((char)0x0000, i));
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expectEqualsInt((1 << j), rotateLeftChar((char)0x0001, i));
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expectEqualsInt((0x1234 << j) | (0x1234 >>> -j), rotateLeftChar((char)0x1234, i));
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}
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}
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public static void testRotateLeftInt() {
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expectEqualsInt(0x00000001, rotateLeftInt(0x00000001, 0));
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expectEqualsInt(0x00000002, rotateLeftInt(0x00000001, 1));
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expectEqualsInt(0x80000000, rotateLeftInt(0x00000001, 31));
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expectEqualsInt(0x00000001, rotateLeftInt(0x00000001, 32)); // overshoot
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expectEqualsInt(0x00000003, rotateLeftInt(0x80000001, 1));
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expectEqualsInt(0x00000006, rotateLeftInt(0x80000001, 2));
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expectEqualsInt(0x23456781, rotateLeftInt(0x12345678, 4));
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expectEqualsInt(0xBCDEF09A, rotateLeftInt(0x9ABCDEF0, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateLeftInt(0x00000000, i));
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expectEqualsInt(0xFFFFFFFF, rotateLeftInt(0xFFFFFFFF, i));
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expectEqualsInt(1 << j, rotateLeftInt(0x00000001, i));
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expectEqualsInt((0x12345678 << j) | (0x12345678 >>> -j), rotateLeftInt(0x12345678, i));
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}
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}
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public static void testRotateLeftLong() {
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expectEqualsLong(0x0000000000000001L, rotateLeftLong(0x0000000000000001L, 0));
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expectEqualsLong(0x0000000000000002L, rotateLeftLong(0x0000000000000001L, 1));
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expectEqualsLong(0x8000000000000000L, rotateLeftLong(0x0000000000000001L, 63));
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expectEqualsLong(0x0000000000000001L, rotateLeftLong(0x0000000000000001L, 64)); // overshoot
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expectEqualsLong(0x0000000000000003L, rotateLeftLong(0x8000000000000001L, 1));
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expectEqualsLong(0x0000000000000006L, rotateLeftLong(0x8000000000000001L, 2));
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expectEqualsLong(0x23456789ABCDEF01L, rotateLeftLong(0x123456789ABCDEF0L, 4));
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expectEqualsLong(0x3456789ABCDEF012L, rotateLeftLong(0x123456789ABCDEF0L, 8));
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for (int i = 0; i < 70; i++) { // overshoot a bit
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int j = i & 63;
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expectEqualsLong(0x0000000000000000L, rotateLeftLong(0x0000000000000000L, i));
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expectEqualsLong(0xFFFFFFFFFFFFFFFFL, rotateLeftLong(0xFFFFFFFFFFFFFFFFL, i));
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expectEqualsLong(1L << j, rotateLeftLong(0x0000000000000001, i));
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expectEqualsLong((0x123456789ABCDEF0L << j) | (0x123456789ABCDEF0L >>> -j),
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rotateLeftLong(0x123456789ABCDEF0L, i));
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}
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}
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public static void testRotateRightBoolean() throws Exception {
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Method rotateRightBoolean = main2.getMethod("rotateRightBoolean", boolean.class, int.class);
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0, (int)rotateRightBoolean.invoke(null, false, i));
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expectEqualsInt(1 << (32 - i), (int)rotateRightBoolean.invoke(null, true, i));
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}
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}
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public static void testRotateRightByte() {
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expectEqualsInt(0xFFFFFF80, rotateRightByte((byte)0x80, 0));
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expectEqualsInt(0x7FFFFFC0, rotateRightByte((byte)0x80, 1));
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expectEqualsInt(0xFFFFFF01, rotateRightByte((byte)0x80, 31));
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expectEqualsInt(0xFFFFFF80, rotateRightByte((byte)0x80, 32)); // overshoot
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expectEqualsInt(0xFFFFFFC0, rotateRightByte((byte)0x81, 1));
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expectEqualsInt(0x7FFFFFE0, rotateRightByte((byte)0x81, 2));
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expectEqualsInt(0x20000001, rotateRightByte((byte)0x12, 4));
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expectEqualsInt(0x9AFFFFFF, rotateRightByte((byte)0x9A, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateRightByte((byte)0x00, i));
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expectEqualsInt(0xFFFFFFFF, rotateRightByte((byte)0xFF, i));
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expectEqualsInt(1 << (32 - j), rotateRightByte((byte)0x01, i));
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expectEqualsInt((0x12 >>> j) | (0x12 << -j), rotateRightByte((byte)0x12, i));
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}
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}
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public static void testRotateRightShort() {
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expectEqualsInt(0xFFFF8000, rotateRightShort((short)0x8000, 0));
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expectEqualsInt(0x7FFFC000, rotateRightShort((short)0x8000, 1));
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expectEqualsInt(0xFFFF0001, rotateRightShort((short)0x8000, 31));
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expectEqualsInt(0xFFFF8000, rotateRightShort((short)0x8000, 32)); // overshoot
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expectEqualsInt(0xFFFFC000, rotateRightShort((short)0x8001, 1));
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expectEqualsInt(0x7FFFE000, rotateRightShort((short)0x8001, 2));
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expectEqualsInt(0x40000123, rotateRightShort((short)0x1234, 4));
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expectEqualsInt(0xBCFFFF9A, rotateRightShort((short)0x9ABC, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateRightShort((short)0x0000, i));
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expectEqualsInt(0xFFFFFFFF, rotateRightShort((short)0xFFFF, i));
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expectEqualsInt(1 << (32 - j), rotateRightShort((short)0x0001, i));
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expectEqualsInt((0x1234 >>> j) | (0x1234 << -j), rotateRightShort((short)0x1234, i));
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}
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}
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public static void testRotateRightChar() {
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expectEqualsInt(0x00008000, rotateRightChar((char)0x8000, 0));
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expectEqualsInt(0x00004000, rotateRightChar((char)0x8000, 1));
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expectEqualsInt(0x00010000, rotateRightChar((char)0x8000, 31));
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expectEqualsInt(0x00008000, rotateRightChar((char)0x8000, 32)); // overshoot
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expectEqualsInt(0x80004000, rotateRightChar((char)0x8001, 1));
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expectEqualsInt(0x40002000, rotateRightChar((char)0x8001, 2));
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expectEqualsInt(0x40000123, rotateRightChar((char)0x1234, 4));
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expectEqualsInt(0xBC00009A, rotateRightChar((char)0x9ABC, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateRightChar((char)0x0000, i));
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expectEqualsInt(1 << (32 - j), rotateRightChar((char)0x0001, i));
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expectEqualsInt((0x1234 >>> j) | (0x1234 << -j), rotateRightChar((char)0x1234, i));
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}
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}
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public static void testRotateRightInt() {
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expectEqualsInt(0x80000000, rotateRightInt(0x80000000, 0));
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expectEqualsInt(0x40000000, rotateRightInt(0x80000000, 1));
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expectEqualsInt(0x00000001, rotateRightInt(0x80000000, 31));
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expectEqualsInt(0x80000000, rotateRightInt(0x80000000, 32)); // overshoot
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expectEqualsInt(0xC0000000, rotateRightInt(0x80000001, 1));
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expectEqualsInt(0x60000000, rotateRightInt(0x80000001, 2));
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expectEqualsInt(0x81234567, rotateRightInt(0x12345678, 4));
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expectEqualsInt(0xF09ABCDE, rotateRightInt(0x9ABCDEF0, 8));
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for (int i = 0; i < 40; i++) { // overshoot a bit
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int j = i & 31;
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expectEqualsInt(0x00000000, rotateRightInt(0x00000000, i));
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expectEqualsInt(0xFFFFFFFF, rotateRightInt(0xFFFFFFFF, i));
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expectEqualsInt(0x80000000 >>> j, rotateRightInt(0x80000000, i));
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expectEqualsInt((0x12345678 >>> j) | (0x12345678 << -j), rotateRightInt(0x12345678, i));
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}
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}
|
|
public static void testRotateRightLong() {
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expectEqualsLong(0x8000000000000000L, rotateRightLong(0x8000000000000000L, 0));
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expectEqualsLong(0x4000000000000000L, rotateRightLong(0x8000000000000000L, 1));
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expectEqualsLong(0x0000000000000001L, rotateRightLong(0x8000000000000000L, 63));
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expectEqualsLong(0x8000000000000000L, rotateRightLong(0x8000000000000000L, 64)); // overshoot
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expectEqualsLong(0xC000000000000000L, rotateRightLong(0x8000000000000001L, 1));
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expectEqualsLong(0x6000000000000000L, rotateRightLong(0x8000000000000001L, 2));
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expectEqualsLong(0x0123456789ABCDEFL, rotateRightLong(0x123456789ABCDEF0L, 4));
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expectEqualsLong(0xF0123456789ABCDEL, rotateRightLong(0x123456789ABCDEF0L, 8));
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for (int i = 0; i < 70; i++) { // overshoot a bit
|
int j = i & 63;
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expectEqualsLong(0x0000000000000000L, rotateRightLong(0x0000000000000000L, i));
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expectEqualsLong(0xFFFFFFFFFFFFFFFFL, rotateRightLong(0xFFFFFFFFFFFFFFFFL, i));
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expectEqualsLong(0x8000000000000000L >>> j, rotateRightLong(0x8000000000000000L, i));
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expectEqualsLong((0x123456789ABCDEF0L >>> j) | (0x123456789ABCDEF0L << -j),
|
rotateRightLong(0x123456789ABCDEF0L, i));
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}
|
}
|
|
|
public static void testRotateLeftIntWithByteDistance() {
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expectEqualsInt(0x00000001, rotateLeftIntWithByteDistance(0x00000001, (byte)0));
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expectEqualsInt(0x00000002, rotateLeftIntWithByteDistance(0x00000001, (byte)1));
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expectEqualsInt(0x80000000, rotateLeftIntWithByteDistance(0x00000001, (byte)31));
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expectEqualsInt(0x00000001, rotateLeftIntWithByteDistance(0x00000001, (byte)32)); // overshoot
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expectEqualsInt(0x00000003, rotateLeftIntWithByteDistance(0x80000001, (byte)1));
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expectEqualsInt(0x00000006, rotateLeftIntWithByteDistance(0x80000001, (byte)2));
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expectEqualsInt(0x23456781, rotateLeftIntWithByteDistance(0x12345678, (byte)4));
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expectEqualsInt(0xBCDEF09A, rotateLeftIntWithByteDistance(0x9ABCDEF0, (byte)8));
|
for (byte i = 0; i < 40; i++) { // overshoot a bit
|
byte j = (byte)(i & 31);
|
expectEqualsInt(0x00000000, rotateLeftIntWithByteDistance(0x00000000, i));
|
expectEqualsInt(0xFFFFFFFF, rotateLeftIntWithByteDistance(0xFFFFFFFF, i));
|
expectEqualsInt(1 << j, rotateLeftIntWithByteDistance(0x00000001, i));
|
expectEqualsInt((0x12345678 << j) | (0x12345678 >>> -j),
|
rotateLeftIntWithByteDistance(0x12345678, i));
|
}
|
}
|
|
public static void testRotateRightIntWithByteDistance() {
|
expectEqualsInt(0x80000000, rotateRightIntWithByteDistance(0x80000000, (byte)0));
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expectEqualsInt(0x40000000, rotateRightIntWithByteDistance(0x80000000, (byte)1));
|
expectEqualsInt(0x00000001, rotateRightIntWithByteDistance(0x80000000, (byte)31));
|
expectEqualsInt(0x80000000, rotateRightIntWithByteDistance(0x80000000, (byte)32)); // overshoot
|
expectEqualsInt(0xC0000000, rotateRightIntWithByteDistance(0x80000001, (byte)1));
|
expectEqualsInt(0x60000000, rotateRightIntWithByteDistance(0x80000001, (byte)2));
|
expectEqualsInt(0x81234567, rotateRightIntWithByteDistance(0x12345678, (byte)4));
|
expectEqualsInt(0xF09ABCDE, rotateRightIntWithByteDistance(0x9ABCDEF0, (byte)8));
|
for (byte i = 0; i < 40; i++) { // overshoot a bit
|
byte j = (byte)(i & 31);
|
expectEqualsInt(0x00000000, rotateRightIntWithByteDistance(0x00000000, i));
|
expectEqualsInt(0xFFFFFFFF, rotateRightIntWithByteDistance(0xFFFFFFFF, i));
|
expectEqualsInt(0x80000000 >>> j, rotateRightIntWithByteDistance(0x80000000, i));
|
expectEqualsInt((0x12345678 >>> j) | (0x12345678 << -j),
|
rotateRightIntWithByteDistance(0x12345678, i));
|
}
|
}
|
|
|
public static void main(String args[]) throws Exception {
|
main2 = Class.forName("Main2");
|
|
testRotateLeftBoolean();
|
testRotateLeftByte();
|
testRotateLeftShort();
|
testRotateLeftChar();
|
testRotateLeftInt();
|
testRotateLeftLong();
|
|
testRotateRightBoolean();
|
testRotateRightByte();
|
testRotateRightShort();
|
testRotateRightChar();
|
testRotateRightInt();
|
testRotateRightLong();
|
|
// Also exercise distance values with types other than int.
|
testRotateLeftIntWithByteDistance();
|
testRotateRightIntWithByteDistance();
|
|
System.out.println("passed");
|
}
|
|
|
private static void expectEqualsInt(int expected, int result) {
|
if (expected != result) {
|
throw new Error("Expected: " + expected + ", found: " + result);
|
}
|
}
|
|
private static void expectEqualsLong(long expected, long result) {
|
if (expected != result) {
|
throw new Error("Expected: " + expected + ", found: " + result);
|
}
|
}
|
}
|
