/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import static art.Redefinition.doCommonClassRedefinition; import java.util.Base64; import java.util.Random; import java.util.function.*; import java.util.stream.*; public class Main { // The bytes below define the following java program. // package java.lang; // import java.math.*; // public final class Long extends Number implements Comparable<Long> { // public static final long MIN_VALUE = 0; // public static final long MAX_VALUE = 0; // public static final Class<Long> TYPE = null; // static { } // // Used for Stream.count for some reason. // public static long sum(long a, long b) { // return a + b; // } // // Used in stream/lambda functions. // public Long(long value) { // this.value = value; // } // // Used in stream/lambda functions. // public static Long valueOf(long l) { // return new Long(l); // } // // Intrinsic! Do something cool. Return i + 1 // public static long highestOneBit(long i) { // return i + 1; // } // // Intrinsic! Do something cool. Return i - 1 // public static long lowestOneBit(long i) { // return i - 1; // } // // Intrinsic! Do something cool. Return i + i // public static int numberOfLeadingZeros(long i) { // return (int)(i + i); // } // // Intrinsic! Do something cool. Return i & (i >>> 1); // public static int numberOfTrailingZeros(long i) { // return (int)(i & (i >>> 1)); // } // // Intrinsic! Do something cool. Return 5 // public static int bitCount(long i) { // return 5; // } // // Intrinsic! Do something cool. Return i // public static long rotateLeft(long i, int distance) { // return i; // } // // Intrinsic! Do something cool. Return 10 * i // public static long rotateRight(long i, int distance) { // return 10 * i; // } // // Intrinsic! Do something cool. Return -i // public static long reverse(long i) { // return -i; // } // // Intrinsic! Do something cool. Return 0 // public static int signum(long i) { // return 0; // } // // Intrinsic! Do something cool. Return 0 // public static long reverseBytes(long i) { // return 0; // } // public String toString() { // return "Redefined Long! value (as double)=" + ((double)value); // } // public static String toString(long i, int radix) { // throw new Error("Method redefined away!"); // } // public static String toUnsignedString(long i, int radix) { // throw new Error("Method redefined away!"); // } // private static BigInteger toUnsignedBigInteger(long i) { // throw new Error("Method redefined away!"); // } // public static String toHexString(long i) { // throw new Error("Method redefined away!"); // } // public static String toOctalString(long i) { // throw new Error("Method redefined away!"); // } // public static String toBinaryString(long i) { // throw new Error("Method redefined away!"); // } // static String toUnsignedString0(long val, int shift) { // throw new Error("Method redefined away!"); // } // static int formatUnsignedLong(long val, int shift, char[] buf, int offset, int len) { // throw new Error("Method redefined away!"); // } // public static String toString(long i) { // throw new Error("Method redefined away!"); // } // public static String toUnsignedString(long i) { // throw new Error("Method redefined away!"); // } // static void getChars(long i, int index, char[] buf) { // throw new Error("Method redefined away!"); // } // static int stringSize(long x) { // throw new Error("Method redefined away!"); // } // public static long parseLong(String s, int radix) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // public static long parseLong(String s) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // public static long parseUnsignedLong(String s, int radix) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // public static long parseUnsignedLong(String s) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // public static Long valueOf(String s, int radix) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // public static Long valueOf(String s) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // public static Long decode(String nm) throws NumberFormatException { // throw new Error("Method redefined away!"); // } // private final long value; // public Long(String s) throws NumberFormatException { // this(0); // throw new Error("Method redefined away!"); // } // public byte byteValue() { // throw new Error("Method redefined away!"); // } // public short shortValue() { // throw new Error("Method redefined away!"); // } // public int intValue() { // throw new Error("Method redefined away!"); // } // public long longValue() { // return value; // } // public float floatValue() { // throw new Error("Method redefined away!"); // } // public double doubleValue() { // throw new Error("Method redefined away!"); // } // public int hashCode() { // throw new Error("Method redefined away!"); // } // public static int hashCode(long value) { // throw new Error("Method redefined away!"); // } // public boolean equals(Object obj) { // throw new Error("Method redefined away!"); // } // public static Long getLong(String nm) { // throw new Error("Method redefined away!"); // } // public static Long getLong(String nm, long val) { // throw new Error("Method redefined away!"); // } // public static Long getLong(String nm, Long val) { // throw new Error("Method redefined away!"); // } // public int compareTo(Long anotherLong) { // throw new Error("Method redefined away!"); // } // public static int compare(long x, long y) { // throw new Error("Method redefined away!"); // } // public static int compareUnsigned(long x, long y) { // throw new Error("Method redefined away!"); // } // public static long divideUnsigned(long dividend, long divisor) { // throw new Error("Method redefined away!"); // } // public static long remainderUnsigned(long dividend, long divisor) { // throw new Error("Method redefined away!"); // } // public static final int SIZE = 64; // public static final int BYTES = SIZE / Byte.SIZE; // public static long max(long a, long b) { // throw new Error("Method redefined away!"); // } // public static long min(long a, long b) { // throw new Error("Method redefined away!"); // } // private static final long serialVersionUID = 0; // } private static final byte[] CLASS_BYTES = Base64.getDecoder().decode( "yv66vgAAADQAiQUAAAAAAAAACgcAdQoAAwB2CAB3CgADAHgJAA0AeQoAAwB6CgADAHsHAHwIAH0K" + "AAoAfgcAfwoADQCACgASAHYKAA0AgQkADQCCBwCDBwCEAQAJTUlOX1ZBTFVFAQABSgEADUNvbnN0" + "YW50VmFsdWUFAAAAAAAAAAABAAlNQVhfVkFMVUUBAARUWVBFAQARTGphdmEvbGFuZy9DbGFzczsB" + "AAlTaWduYXR1cmUBACNMamF2YS9sYW5nL0NsYXNzPExqYXZhL2xhbmcvTG9uZzs+OwEABXZhbHVl" + "AQAEU0laRQEAAUkDAAAAQAEABUJZVEVTAwAAAAgBABBzZXJpYWxWZXJzaW9uVUlEAQANaGlnaGVz" + "dE9uZUJpdAEABChKKUoBAARDb2RlAQAPTGluZU51bWJlclRhYmxlAQAMbG93ZXN0T25lQml0AQAU" + 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"AAAABgABAAAAOwABADQANQABACcAAAAwAAMAAQAAABi7AANZtwAEEgW2AAYqtAAHirYACLYACbAA" + "AAABACgAAAAGAAEAAAA/AAkANAA2AAEAJwAAACIAAwADAAAACrsAClkSC7cADL8AAAABACgAAAAG" + "AAEAAABDAAkANwA2AAEAJwAAACIAAwADAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABGAAoA" + "OAA5AAEAJwAAACIAAwACAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABKAAkAOgA7AAEAJwAA" + "ACIAAwACAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABNAAkAPAA7AAEAJwAAACIAAwACAAAA" + "CrsAClkSC7cADL8AAAABACgAAAAGAAEAAABRAAkAPQA7AAEAJwAAACIAAwACAAAACrsAClkSC7cA" + "DL8AAAABACgAAAAGAAEAAABVAAgAPgA2AAEAJwAAACIAAwADAAAACrsAClkSC7cADL8AAAABACgA" + "AAAGAAEAAABZAAgAPwBAAAEAJwAAACIAAwAGAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABd" + "AAkANAA7AAEAJwAAACIAAwACAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABhAAkANwA7AAEA" + "JwAAACIAAwACAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABlAAgAQQBCAAEAJwAAACIAAwAE" + "AAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAABpAAgAQwArAAEAJwAAACIAAwACAAAACrsAClkS" + "C7cADL8AAAABACgAAAAGAAEAAABtAAkARABFAAIAJwAAACIAAwACAAAACrsAClkSC7cADL8AAAAB" + "ACgAAAAGAAEAAABxAEYAAAAEAAEARwAJAEQASAACACcAAAAiAAMAAQAAAAq7AApZEgu3AAy/AAAA" + "AQAoAAAABgABAAAAdQBGAAAABAABAEcACQBJAEUAAgAnAAAAIgADAAIAAAAKuwAKWRILtwAMvwAA" + "AAEAKAAAAAYAAQAAAHkARgAAAAQAAQBHAAkASQBIAAIAJwAAACIAAwABAAAACrsAClkSC7cADL8A" + "AAABACgAAAAGAAEAAAB9AEYAAAAEAAEARwAJAEoASwACACcAAAAiAAMAAgAAAAq7AApZEgu3AAy/" + "AAAAAQAoAAAABgABAAAAgQBGAAAABAABAEcACQBKAEwAAgAnAAAAIgADAAEAAAAKuwAKWRILtwAM" + "vwAAAAEAKAAAAAYAAQAAAIQARgAAAAQAAQBHAAkASgBNAAEAJwAAACEABAACAAAACbsADVketwAO" + "sAAAAAEAKAAAAAYAAQAAAIcACQBOAEwAAgAnAAAAIgADAAEAAAAKuwAKWRILtwAMvwAAAAEAKAAA" + "AAYAAQAAAIsARgAAAAQAAQBHAAEATwBQAAEAJwAAACoAAwADAAAACiq3AA8qH7UAB7EAAAABACgA" + "AAAOAAMAAACQAAQAkQAJAJIAAQBPAFEAAgAnAAAAKwADAAIAAAAPKgm3AA67AApZEgu3AAy/AAAA" + "AQAoAAAACgACAAAAlQAFAJYARgAAAAQAAQBHAAEAUgBTAAEAJwAAACIAAwABAAAACrsAClkSC7cA" + "DL8AAAABACgAAAAGAAEAAACaAAEAVABVAAEAJwAAACIAAwABAAAACrsAClkSC7cADL8AAAABACgA" + "AAAGAAEAAACeAAEAVgBXAAEAJwAAACIAAwABAAAACrsAClkSC7cADL8AAAABACgAAAAGAAEAAACi" + "AAEAWABZAAEAJwAAAB0AAgABAAAABSq0AAetAAAAAQAoAAAABgABAAAApgABAFoAWwABACcAAAAi" + "AAMAAQAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAAqgABAFwAXQABACcAAAAiAAMAAQAAAAq7" + "AApZEgu3AAy/AAAAAQAoAAAABgABAAAArgABAF4AVwABACcAAAAiAAMAAQAAAAq7AApZEgu3AAy/" + "AAAAAQAoAAAABgABAAAAsgAJAF4AKwABACcAAAAiAAMAAgAAAAq7AApZEgu3AAy/AAAAAQAoAAAA" + "BgABAAAAtgABAF8AYAABACcAAAAiAAMAAgAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAAugAJ" + "AGEATAABACcAAAAiAAMAAQAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAAvgAJAGEAYgABACcA" + "AAAiAAMAAwAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAAwgAJAGEAYwABACcAAAAiAAMAAgAA" + "AAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAAxgABAGQAZQABACcAAAAiAAMAAgAAAAq7AApZEgu3" + "AAy/AAAAAQAoAAAABgABAAAAyQAJAGYAZwABACcAAAAiAAMABAAAAAq7AApZEgu3AAy/AAAAAQAo" + "AAAABgABAAAAzQAJAGgAZwABACcAAAAiAAMABAAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAA" + "0QAJAGkAagABACcAAAAiAAMABAAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAA1QAJAGsAagAB" + "ACcAAAAiAAMABAAAAAq7AApZEgu3AAy/AAAAAQAoAAAABgABAAAA2QAJAGwAagABACcAAAAcAAQA" + "BAAAAAQeIGGtAAAAAQAoAAAABgABAAAA4AAJAG0AagABACcAAAAiAAMABAAAAAq7AApZEgu3AAy/" + "AAAAAQAoAAAABgABAAAA5AAJAG4AagABACcAAAAiAAMABAAAAAq7AApZEgu3AAy/AAAAAQAoAAAA" + "BgABAAAA5xBBAGQAbwABACcAAAAhAAIAAgAAAAkqK8AADbYAEKwAAAABACgAAAAGAAEAAAAFAAgA" + "cABxAAEAJwAAACEAAQAAAAAABQGzABGxAAAAAQAoAAAACgACAAAACAAEAAoAAgAcAAAAAgByAHMA" + "AAACAHQ="); private static final byte[] DEX_BYTES = Base64.getDecoder().decode( "ZGV4CjAzNQAFtMupmeDN6Ck5nxdemGsp43KmLNpYLrMYFgAAcAAAAHhWNBIAAAAAAAAAAEgVAABl" + "AAAAcAAAABUAAAAEAgAAIAAAAFgCAAAHAAAA2AMAAD0AAAAQBAAAAQAAAPgFAAAAEAAAGAYAAB4O" + "AAAhDgAAKw4AADMOAAA3DgAAOg4AAEEOAABEDgAARw4AAEoOAABODgAAVg4AAFsOAABfDgAAYg4A" + "AGYOAABrDgAAcA4AAHQOAAB5DgAAfA4AAIAOAACEDgAAiQ4AAI0OAACSDgAAlw4AAJwOAAC7DgAA" + "1w4AAOkOAAD8DgAAEw8AACsPAAA+DwAAUA8AAGQPAACHDwAAmw8AAK8PAADKDwAA4g8AAO0PAAD4" + "DwAAAxAAABsQAAA/EAAAQhAAAEgQAABOEAAAURAAAFUQAABbEAAAXxAAAGIQAABmEAAAahAAAHIQ" + "AAB8EAAAhxAAAJAQAACbEAAArBAAALQQAADEEAAA0RAAAOUQAADtEAAA+RAAAA0RAAAXEQAAIBEA" + 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"YxwBGAwEBAgGAAYABEAGASwLABkBGQEZARkBGQEaBhIBiIAEsAwBgYAExAwBgYAE4AwBCYwNAgmg" + "DQMJxA0BCegNAQmMDgQIsA4BCNQOAQn4DgEJnA8BCcAPAgnkDwEJiBADCaAQAQm8EAEJ4BABCYQR" + "AQmcEQEJuBEBCdwRAQmAEgEJpBIBCcgSAQnsEgEJgBMBCZgTAQmsEwIJxBMBCNgTAQn8EwEJlBQB" + "CbgUAQncFAIJgBUBCaQVAQrIFQEJ7BUBCZAWAQi0FgEJ2BYBCfQWAQmYFwUBvBcCAeAXAcEghBgE" + "AaQYAQHIGAEB7BgGAZAZAwG0GQEB2BkPAfAZBwGUGgAAEQAAAAAAAAABAAAAAAAAAAEAAABlAAAA" + "cAAAAAIAAAAVAAAABAIAAAMAAAAgAAAAWAIAAAQAAAAHAAAA2AMAAAUAAAA9AAAAEAQAAAYAAAAB" + "AAAA+AUAAAMQAAADAAAAGAYAAAEgAAA3AAAAMAYAAAYgAAABAAAAVA0AAAEQAAANAAAArA0AAAIg" + "AABlAAAAHg4AAAMgAAA3AAAArBIAAAQgAAADAAAAIhQAAAUgAAABAAAASBQAAAAgAAABAAAAURQA" + "AAAQAAABAAAASBUAAA=="); static class FuncCmp implements LongPredicate { final String name; final LongPredicate p; public FuncCmp(String name, LongPredicate p) { this.name = name; this.p = p; } public boolean test(long l) { return p.test(l); } } static FuncCmp l2l(String name, final LongUnaryOperator a, final LongUnaryOperator b) { return new FuncCmp(name, (v) -> a.applyAsLong(v) == b.applyAsLong(v)); } static FuncCmp l2i(String name, final LongToIntFunction a, final LongToIntFunction b) { return new FuncCmp(name, (v) -> a.applyAsInt(v) == b.applyAsInt(v)); } /** Interface for a long, int -> long function. */ static interface LI2IFunction { public long applyToLongInt(long a, int b); } static FuncCmp li2l(String name, final Random r, final LI2IFunction a, final LI2IFunction b) { return new FuncCmp(name, new LongPredicate() { public boolean test(long v) { int i = r.nextInt(); return a.applyToLongInt(v, i) == b.applyToLongInt(v, i); } }); } public static void main(String[] args) { doTest(10000); } public static void doTest(int iters) { // Just transform immediately. doCommonClassRedefinition(Long.class, CLASS_BYTES, DEX_BYTES); final Random r = new Random(); FuncCmp[] comps = new FuncCmp[] { l2l("highestOneBit", Long::highestOneBit, RedefinedLongIntrinsics::highestOneBit), l2l("lowestOneBit", Long::lowestOneBit, RedefinedLongIntrinsics::lowestOneBit), l2i("numberOfLeadingZeros", Long::numberOfLeadingZeros, RedefinedLongIntrinsics::numberOfLeadingZeros), l2i("numberOfTrailingZeros", Long::numberOfTrailingZeros, RedefinedLongIntrinsics::numberOfTrailingZeros), l2i("bitCount", Long::bitCount, RedefinedLongIntrinsics::bitCount), li2l("rotateLeft", r, Long::rotateLeft, RedefinedLongIntrinsics::rotateLeft), li2l("rotateRight", r, Long::rotateRight, RedefinedLongIntrinsics::rotateRight), l2l("reverse", Long::reverse, RedefinedLongIntrinsics::reverse), l2i("signum", Long::signum, RedefinedLongIntrinsics::signum), l2l("reverseBytes", Long::reverseBytes, RedefinedLongIntrinsics::reverseBytes), }; for (FuncCmp f : comps) { // Just actually use ints so we can cast them back int the tests to print them (since we // deleted a bunch of the Long methods needed for printing longs)! int failures = (int)r.ints(iters) .mapToLong((v) -> (long)v) .filter(f.negate()) // Get all the test cases that failed. .count(); if (failures != 0) { double percent = 100.0d*((double)failures/(double)iters); System.out.println("for intrinsic " + f.name + " " + failures + "/" + iters + " (" + Double.toString(percent) + "%) tests failed!"); } } System.out.println("Finished!"); } }