/*
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* Copyright (C) 2014 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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public class RemTest {
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public static void main() {
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remInt();
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remLong();
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}
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private static void remInt() {
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expectEquals(2, $opt$RemConst(6));
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expectEquals(2, $opt$Rem(6, 4));
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expectEquals(2, $opt$Rem(6, -4));
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expectEquals(0, $opt$Rem(6, 3));
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expectEquals(0, $opt$Rem(6, -3));
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expectEquals(0, $opt$Rem(6, 1));
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expectEquals(0, $opt$Rem(6, -1));
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expectEquals(-1, $opt$Rem(-7, 3));
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expectEquals(-1, $opt$Rem(-7, -3));
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expectEquals(0, $opt$Rem(6, 6));
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expectEquals(0, $opt$Rem(-6, -6));
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expectEquals(7, $opt$Rem(7, 9));
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expectEquals(7, $opt$Rem(7, -9));
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expectEquals(-7, $opt$Rem(-7, 9));
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expectEquals(-7, $opt$Rem(-7, -9));
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expectEquals(0, $opt$Rem(Integer.MAX_VALUE, 1));
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expectEquals(0, $opt$Rem(Integer.MAX_VALUE, -1));
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expectEquals(0, $opt$Rem(Integer.MIN_VALUE, 1));
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expectEquals(0, $opt$Rem(Integer.MIN_VALUE, -1)); // no overflow
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expectEquals(-1, $opt$Rem(Integer.MIN_VALUE, Integer.MAX_VALUE));
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expectEquals(Integer.MAX_VALUE, $opt$Rem(Integer.MAX_VALUE, Integer.MIN_VALUE));
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expectEquals(0, $opt$Rem(0, 7));
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expectEquals(0, $opt$Rem(0, Integer.MAX_VALUE));
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expectEquals(0, $opt$Rem(0, Integer.MIN_VALUE));
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expectDivisionByZero(0);
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expectDivisionByZero(1);
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expectDivisionByZero(5);
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expectDivisionByZero(Integer.MAX_VALUE);
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expectDivisionByZero(Integer.MIN_VALUE);
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}
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private static void remLong() {
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expectEquals(2L, $opt$RemConst(6L));
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expectEquals(2L, $opt$Rem(6L, 4L));
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expectEquals(2L, $opt$Rem(6L, -4L));
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expectEquals(0L, $opt$Rem(6L, 3L));
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expectEquals(0L, $opt$Rem(6L, -3L));
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expectEquals(0L, $opt$Rem(6L, 1L));
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expectEquals(0L, $opt$Rem(6L, -1L));
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expectEquals(-1L, $opt$Rem(-7L, 3L));
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expectEquals(-1L, $opt$Rem(-7L, -3L));
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expectEquals(0L, $opt$Rem(6L, 6L));
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expectEquals(0L, $opt$Rem(-6L, -6L));
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expectEquals(7L, $opt$Rem(7L, 9L));
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expectEquals(7L, $opt$Rem(7L, -9L));
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expectEquals(-7L, $opt$Rem(-7L, 9L));
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expectEquals(-7L, $opt$Rem(-7L, -9L));
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expectEquals(0L, $opt$Rem(Long.MAX_VALUE, 1L));
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expectEquals(0L, $opt$Rem(Long.MAX_VALUE, -1L));
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expectEquals(0L, $opt$Rem(Long.MIN_VALUE, 1L));
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expectEquals(0L, $opt$Rem(Long.MIN_VALUE, -1L)); // no overflow
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expectEquals(-1L, $opt$Rem(Long.MIN_VALUE, Long.MAX_VALUE));
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expectEquals(Long.MAX_VALUE, $opt$Rem(Long.MAX_VALUE, Long.MIN_VALUE));
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expectEquals(0L, $opt$Rem(0L, 7L));
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expectEquals(0L, $opt$Rem(0L, Long.MAX_VALUE));
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expectEquals(0L, $opt$Rem(0L, Long.MIN_VALUE));
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expectDivisionByZero(0L);
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expectDivisionByZero(1L);
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expectDivisionByZero(5L);
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expectDivisionByZero(Long.MAX_VALUE);
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expectDivisionByZero(Long.MIN_VALUE);
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expectEquals(0, $noinline$RemLoaded1(0));
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expectEquals(0, $noinline$RemLoaded1(1));
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expectEquals(0, $noinline$RemLoaded1(-1));
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expectEquals(0, $noinline$RemLoaded1(12345));
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expectEquals(0, $noinline$RemLoaded1(Integer.MAX_VALUE));
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expectEquals(0, $noinline$RemLoaded1(Integer.MIN_VALUE));
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expectEquals(0, $noinline$RemLoadedN1(0));
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expectEquals(0, $noinline$RemLoadedN1(1));
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expectEquals(0, $noinline$RemLoadedN1(-1));
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expectEquals(0, $noinline$RemLoadedN1(12345));
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expectEquals(0, $noinline$RemLoadedN1(Integer.MAX_VALUE));
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expectEquals(0, $noinline$RemLoadedN1(Integer.MIN_VALUE));
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expectEquals(0L, $noinline$RemLoaded1(0L));
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expectEquals(0L, $noinline$RemLoaded1(1L));
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expectEquals(0L, $noinline$RemLoaded1(-1L));
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expectEquals(0L, $noinline$RemLoaded1(12345L));
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expectEquals(0L, $noinline$RemLoaded1(Long.MAX_VALUE));
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expectEquals(0L, $noinline$RemLoaded1(Long.MIN_VALUE));
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expectEquals(0L, $noinline$RemLoadedN1(0L));
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expectEquals(0L, $noinline$RemLoadedN1(1L));
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expectEquals(0L, $noinline$RemLoadedN1(-1L));
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expectEquals(0L, $noinline$RemLoadedN1(12345L));
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expectEquals(0L, $noinline$RemLoadedN1(Long.MAX_VALUE));
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expectEquals(0L, $noinline$RemLoadedN1(Long.MIN_VALUE));
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}
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static int $opt$Rem(int a, int b) {
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return a % b;
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}
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static int $opt$RemZero(int a) {
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return a % 0;
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}
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static int $noinline$RemLoaded1(int a) {
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int[] v = {25, 1};
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return a % v[1];
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}
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static int $noinline$RemLoadedN1(int a) {
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int [] v = {25, -1};
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return a % v[1];
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}
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static long $noinline$RemLoaded1(long a) {
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long[] v = {25, 1};
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return a % v[1];
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}
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static long $noinline$RemLoadedN1(long a) {
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long [] v = {25, -1};
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return a % v[1];
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}
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// Modulo by literals != 0 should not generate checks.
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static int $opt$RemConst(int a) {
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return a % 4;
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}
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static long $opt$RemConst(long a) {
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return a % 4L;
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}
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static long $opt$Rem(long a, long b) {
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return a % b;
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}
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static long $opt$RemZero(long a) {
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return a % 0L;
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}
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public static void expectEquals(int expected, int result) {
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if (expected != result) {
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throw new Error("Expected: " + expected + ", found: " + result);
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}
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}
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public static void expectEquals(long expected, long result) {
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if (expected != result) {
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throw new Error("Expected: " + expected + ", found: " + result);
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}
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}
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public static void expectDivisionByZero(int value) {
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try {
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$opt$Rem(value, 0);
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throw new Error("Expected RuntimeException when modulo by 0");
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} catch (java.lang.RuntimeException e) {
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}
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try {
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$opt$RemZero(value);
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throw new Error("Expected RuntimeException when modulo by 0");
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} catch (java.lang.RuntimeException e) {
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}
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}
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public static void expectDivisionByZero(long value) {
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try {
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$opt$Rem(value, 0L);
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throw new Error("Expected RuntimeException when modulo by 0");
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} catch (java.lang.RuntimeException e) {
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}
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try {
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$opt$RemZero(value);
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throw new Error("Expected RuntimeException when modulo by 0");
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} catch (java.lang.RuntimeException e) {
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}
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}
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}
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