| /* |
| * Copyright (C) 2018 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. |
| */ |
| |
| public class RemTest { |
| |
| public static <T extends Number> void expectEquals(T expected, T result) { |
| if (!expected.equals(result)) { |
| throw new Error("Expected: " + expected + ", found: " + result); |
| } |
| } |
| |
| public static void main() { |
| remInt(); |
| remLong(); |
| } |
| |
| private static void remInt() { |
| expectEquals(0, $noinline$IntMod2(0)); |
| expectEquals(1, $noinline$IntMod2(1)); |
| expectEquals(-1, $noinline$IntMod2(-1)); |
| expectEquals(0, $noinline$IntMod2(2)); |
| expectEquals(0, $noinline$IntMod2(-2)); |
| expectEquals(1, $noinline$IntMod2(3)); |
| expectEquals(-1, $noinline$IntMod2(-3)); |
| expectEquals(1, $noinline$IntMod2(0x0f)); |
| expectEquals(1, $noinline$IntMod2(0x00ff)); |
| expectEquals(1, $noinline$IntMod2(0x00ffff)); |
| expectEquals(1, $noinline$IntMod2(Integer.MAX_VALUE)); |
| expectEquals(0, $noinline$IntMod2(Integer.MIN_VALUE)); |
| |
| expectEquals(0, $noinline$IntModMinus2(0)); |
| expectEquals(1, $noinline$IntModMinus2(1)); |
| expectEquals(-1, $noinline$IntModMinus2(-1)); |
| expectEquals(0, $noinline$IntModMinus2(2)); |
| expectEquals(0, $noinline$IntModMinus2(-2)); |
| expectEquals(1, $noinline$IntModMinus2(3)); |
| expectEquals(-1, $noinline$IntModMinus2(-3)); |
| expectEquals(1, $noinline$IntModMinus2(0x0f)); |
| expectEquals(1, $noinline$IntModMinus2(0x00ff)); |
| expectEquals(1, $noinline$IntModMinus2(0x00ffff)); |
| expectEquals(1, $noinline$IntModMinus2(Integer.MAX_VALUE)); |
| expectEquals(0, $noinline$IntModMinus2(Integer.MIN_VALUE)); |
| |
| expectEquals(0, $noinline$IntMod16(0)); |
| expectEquals(1, $noinline$IntMod16(1)); |
| expectEquals(1, $noinline$IntMod16(17)); |
| expectEquals(-1, $noinline$IntMod16(-1)); |
| expectEquals(0, $noinline$IntMod16(32)); |
| expectEquals(0, $noinline$IntMod16(-32)); |
| expectEquals(0x0f, $noinline$IntMod16(0x0f)); |
| expectEquals(0x0f, $noinline$IntMod16(0x00ff)); |
| expectEquals(0x0f, $noinline$IntMod16(0x00ffff)); |
| expectEquals(15, $noinline$IntMod16(Integer.MAX_VALUE)); |
| expectEquals(0, $noinline$IntMod16(Integer.MIN_VALUE)); |
| |
| expectEquals(0, $noinline$IntModMinus16(0)); |
| expectEquals(1, $noinline$IntModMinus16(1)); |
| expectEquals(1, $noinline$IntModMinus16(17)); |
| expectEquals(-1, $noinline$IntModMinus16(-1)); |
| expectEquals(0, $noinline$IntModMinus16(32)); |
| expectEquals(0, $noinline$IntModMinus16(-32)); |
| expectEquals(0x0f, $noinline$IntModMinus16(0x0f)); |
| expectEquals(0x0f, $noinline$IntModMinus16(0x00ff)); |
| expectEquals(0x0f, $noinline$IntModMinus16(0x00ffff)); |
| expectEquals(15, $noinline$IntModMinus16(Integer.MAX_VALUE)); |
| expectEquals(0, $noinline$IntModMinus16(Integer.MIN_VALUE)); |
| |
| expectEquals(0, $noinline$IntModIntMin(0)); |
| expectEquals(1, $noinline$IntModIntMin(1)); |
| expectEquals(0, $noinline$IntModIntMin(Integer.MIN_VALUE)); |
| expectEquals(-1, $noinline$IntModIntMin(-1)); |
| expectEquals(0x0f, $noinline$IntModIntMin(0x0f)); |
| expectEquals(0x00ff, $noinline$IntModIntMin(0x00ff)); |
| expectEquals(0x00ffff, $noinline$IntModIntMin(0x00ffff)); |
| expectEquals(Integer.MAX_VALUE, $noinline$IntModIntMin(Integer.MAX_VALUE)); |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Integer RemTest.$noinline$IntMod2(int) disassembly (after) |
| /// CHECK: cmp w{{\d+}}, #0x0 |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0x1 |
| /// CHECK: cneg w{{\d+}}, w{{\d+}}, lt |
| /// CHECK-START-X86_64: java.lang.Integer RemTest.$noinline$IntMod2(int) disassembly (after) |
| /// CHECK: Rem [{{i\d+}},{{i\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shr |
| /// CHECK-NOT: imul |
| /// CHECK: mov |
| /// CHECK: and |
| /// CHECK: jz/eq |
| /// CHECK: lea |
| /// CHECK: test |
| /// CHECK: cmovl/nge |
| private static Integer $noinline$IntMod2(int v) { |
| int r = v % 2; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Integer RemTest.$noinline$IntModMinus2(int) disassembly (after) |
| /// CHECK: cmp w{{\d+}}, #0x0 |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0x1 |
| /// CHECK: cneg w{{\d+}}, w{{\d+}}, lt |
| /// CHECK-START-X86_64: java.lang.Integer RemTest.$noinline$IntModMinus2(int) disassembly (after) |
| /// CHECK: Rem [{{i\d+}},{{i\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shr |
| /// CHECK-NOT: imul |
| /// CHECK: mov |
| /// CHECK: and |
| /// CHECK: jz/eq |
| /// CHECK: lea |
| /// CHECK: test |
| /// CHECK: cmovl/nge |
| private static Integer $noinline$IntModMinus2(int v) { |
| int r = v % -2; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Integer RemTest.$noinline$IntMod16(int) disassembly (after) |
| /// CHECK: negs w{{\d+}}, w{{\d+}} |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0xf |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0xf |
| /// CHECK: csneg w{{\d+}}, w{{\d+}}, mi |
| /// CHECK-START-X86_64: java.lang.Integer RemTest.$noinline$IntMod16(int) disassembly (after) |
| /// CHECK: Rem [{{i\d+}},{{i\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shr |
| /// CHECK-NOT: imul |
| /// CHECK: mov |
| /// CHECK: and |
| /// CHECK: jz/eq |
| /// CHECK: lea |
| /// CHECK: test |
| /// CHECK: cmovl/nge |
| private static Integer $noinline$IntMod16(int v) { |
| int r = v % 16; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Integer RemTest.$noinline$IntModMinus16(int) disassembly (after) |
| /// CHECK: negs w{{\d+}}, w{{\d+}} |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0xf |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0xf |
| /// CHECK: csneg w{{\d+}}, w{{\d+}}, mi |
| /// CHECK-START-X86_64: java.lang.Integer RemTest.$noinline$IntModMinus16(int) disassembly (after) |
| /// CHECK: Rem [{{i\d+}},{{i\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shr |
| /// CHECK-NOT: imul |
| /// CHECK: mov |
| /// CHECK: and |
| /// CHECK: jz/eq |
| /// CHECK: lea |
| /// CHECK: test |
| /// CHECK: cmovl/nge |
| private static Integer $noinline$IntModMinus16(int v) { |
| int r = v % -16; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Integer RemTest.$noinline$IntModIntMin(int) disassembly (after) |
| /// CHECK: negs w{{\d+}}, w{{\d+}} |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0x7fffffff |
| /// CHECK: and w{{\d+}}, w{{\d+}}, #0x7fffffff |
| /// CHECK: csneg w{{\d+}}, w{{\d+}}, mi |
| /// CHECK-START-X86_64: java.lang.Integer RemTest.$noinline$IntModIntMin(int) disassembly (after) |
| /// CHECK: Rem [{{i\d+}},{{i\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shr |
| /// CHECK-NOT: imul |
| /// CHECK: mov |
| /// CHECK: and |
| /// CHECK: jz/eq |
| /// CHECK: lea |
| /// CHECK: test |
| /// CHECK: cmovl/nge |
| private static Integer $noinline$IntModIntMin(int v) { |
| int r = v % Integer.MIN_VALUE; |
| return r; |
| } |
| |
| private static void remLong() { |
| expectEquals(0L, $noinline$LongMod2(0)); |
| expectEquals(1L, $noinline$LongMod2(1)); |
| expectEquals(-1L, $noinline$LongMod2(-1)); |
| expectEquals(0L, $noinline$LongMod2(2)); |
| expectEquals(0L, $noinline$LongMod2(-2)); |
| expectEquals(1L, $noinline$LongMod2(3)); |
| expectEquals(-1L, $noinline$LongMod2(-3)); |
| expectEquals(1L, $noinline$LongMod2(0x0f)); |
| expectEquals(1L, $noinline$LongMod2(0x00ff)); |
| expectEquals(1L, $noinline$LongMod2(0x00ffff)); |
| expectEquals(1L, $noinline$LongMod2(0x00ffffff)); |
| expectEquals(1L, $noinline$LongMod2(0x00ffffffffL)); |
| expectEquals(1L, $noinline$LongMod2(Long.MAX_VALUE)); |
| expectEquals(0L, $noinline$LongMod2(Long.MIN_VALUE)); |
| |
| expectEquals(0L, $noinline$LongModMinus2(0)); |
| expectEquals(1L, $noinline$LongModMinus2(1)); |
| expectEquals(-1L, $noinline$LongModMinus2(-1)); |
| expectEquals(0L, $noinline$LongModMinus2(2)); |
| expectEquals(0L, $noinline$LongModMinus2(-2)); |
| expectEquals(1L, $noinline$LongModMinus2(3)); |
| expectEquals(-1L, $noinline$LongModMinus2(-3)); |
| expectEquals(1L, $noinline$LongModMinus2(0x0f)); |
| expectEquals(1L, $noinline$LongModMinus2(0x00ff)); |
| expectEquals(1L, $noinline$LongModMinus2(0x00ffff)); |
| expectEquals(1L, $noinline$LongModMinus2(0x00ffffff)); |
| expectEquals(1L, $noinline$LongModMinus2(0x00ffffffffL)); |
| expectEquals(1L, $noinline$LongModMinus2(Long.MAX_VALUE)); |
| expectEquals(0L, $noinline$LongModMinus2(Long.MIN_VALUE)); |
| |
| expectEquals(0L, $noinline$LongMod16(0)); |
| expectEquals(1L, $noinline$LongMod16(1)); |
| expectEquals(1L, $noinline$LongMod16(17)); |
| expectEquals(-1L, $noinline$LongMod16(-1)); |
| expectEquals(0L, $noinline$LongMod16(32)); |
| expectEquals(0L, $noinline$LongMod16(-32)); |
| expectEquals(0x0fL, $noinline$LongMod16(0x0f)); |
| expectEquals(0x0fL, $noinline$LongMod16(0x00ff)); |
| expectEquals(0x0fL, $noinline$LongMod16(0x00ffff)); |
| expectEquals(0x0fL, $noinline$LongMod16(0x00ffffff)); |
| expectEquals(0x0fL, $noinline$LongMod16(0x00ffffffffL)); |
| expectEquals(15L, $noinline$LongMod16(Long.MAX_VALUE)); |
| expectEquals(0L, $noinline$LongMod16(Long.MIN_VALUE)); |
| |
| expectEquals(0L, $noinline$LongModMinus16(0)); |
| expectEquals(1L, $noinline$LongModMinus16(1)); |
| expectEquals(1L, $noinline$LongModMinus16(17)); |
| expectEquals(-1L, $noinline$LongModMinus16(-1)); |
| expectEquals(0L, $noinline$LongModMinus16(32)); |
| expectEquals(0L, $noinline$LongModMinus16(-32)); |
| expectEquals(0x0fL, $noinline$LongModMinus16(0x0f)); |
| expectEquals(0x0fL, $noinline$LongModMinus16(0x00ff)); |
| expectEquals(0x0fL, $noinline$LongModMinus16(0x00ffff)); |
| expectEquals(0x0fL, $noinline$LongModMinus16(0x00ffffff)); |
| expectEquals(0x0fL, $noinline$LongModMinus16(0x00ffffffffL)); |
| expectEquals(15L, $noinline$LongModMinus16(Long.MAX_VALUE)); |
| expectEquals(0L, $noinline$LongModMinus16(Long.MIN_VALUE)); |
| |
| expectEquals(0L, $noinline$LongModLongMin(0)); |
| expectEquals(1L, $noinline$LongModLongMin(1)); |
| expectEquals(0L, $noinline$LongModLongMin(Long.MIN_VALUE)); |
| expectEquals(-1L, $noinline$LongModLongMin(-1)); |
| expectEquals(0x0fL, $noinline$LongModLongMin(0x0f)); |
| expectEquals(0x00ffL, $noinline$LongModLongMin(0x00ff)); |
| expectEquals(0x00ffffL, $noinline$LongModLongMin(0x00ffff)); |
| expectEquals(0x00ffffffL, $noinline$LongModLongMin(0x00ffffff)); |
| expectEquals(0x00ffffffffL, $noinline$LongModLongMin(0x00ffffffffL)); |
| expectEquals(Long.MAX_VALUE, $noinline$LongModLongMin(Long.MAX_VALUE)); |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Long RemTest.$noinline$LongMod2(long) disassembly (after) |
| /// CHECK: cmp x{{\d+}}, #0x0 |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0x1 |
| /// CHECK: cneg x{{\d+}}, x{{\d+}}, lt |
| /// CHECK-START-X86_64: java.lang.Long RemTest.$noinline$LongMod2(long) disassembly (after) |
| /// CHECK: Rem [{{j\d+}},{{j\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shrq |
| /// CHECK-NOT: imulq |
| /// CHECK: movq |
| /// CHECK: andq |
| /// CHECK: jz/eq |
| /// CHECK: movq |
| /// CHECK: sarq |
| /// CHECK: shlq |
| /// CHECK: orq |
| private static Long $noinline$LongMod2(long v) { |
| long r = v % 2; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Long RemTest.$noinline$LongModMinus2(long) disassembly (after) |
| /// CHECK: cmp x{{\d+}}, #0x0 |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0x1 |
| /// CHECK: cneg x{{\d+}}, x{{\d+}}, lt |
| /// CHECK-START-X86_64: java.lang.Long RemTest.$noinline$LongModMinus2(long) disassembly (after) |
| /// CHECK: Rem [{{j\d+}},{{j\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shrq |
| /// CHECK-NOT: imulq |
| /// CHECK: movq |
| /// CHECK: andq |
| /// CHECK: jz/eq |
| /// CHECK: movq |
| /// CHECK: sarq |
| /// CHECK: shlq |
| /// CHECK: orq |
| private static Long $noinline$LongModMinus2(long v) { |
| long r = v % -2; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Long RemTest.$noinline$LongMod16(long) disassembly (after) |
| /// CHECK: negs x{{\d+}}, x{{\d+}} |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0xf |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0xf |
| /// CHECK: csneg x{{\d+}}, x{{\d+}}, mi |
| |
| /// CHECK-START-X86_64: java.lang.Long RemTest.$noinline$LongMod16(long) disassembly (after) |
| /// CHECK: Rem [{{j\d+}},{{j\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shrq |
| /// CHECK-NOT: imulq |
| /// CHECK: movq |
| /// CHECK: andq |
| /// CHECK: jz/eq |
| /// CHECK: movq |
| /// CHECK: sarq |
| /// CHECK: shlq |
| /// CHECK: orq |
| private static Long $noinline$LongMod16(long v) { |
| long r = v % 16; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Long RemTest.$noinline$LongModMinus16(long) disassembly (after) |
| /// CHECK: negs x{{\d+}}, x{{\d+}} |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0xf |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0xf |
| /// CHECK: csneg x{{\d+}}, x{{\d+}}, mi |
| /// CHECK-START-X86_64: java.lang.Long RemTest.$noinline$LongModMinus16(long) disassembly (after) |
| /// CHECK: Rem [{{j\d+}},{{j\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shrq |
| /// CHECK-NOT: imulq |
| /// CHECK: movq |
| /// CHECK: andq |
| /// CHECK: jz/eq |
| /// CHECK: movq |
| /// CHECK: sarq |
| /// CHECK: shlq |
| /// CHECK: orq |
| private static Long $noinline$LongModMinus16(long v) { |
| long r = v % -16; |
| return r; |
| } |
| |
| /// CHECK-START-ARM64: java.lang.Long RemTest.$noinline$LongModLongMin(long) disassembly (after) |
| /// CHECK: negs x{{\d+}}, x{{\d+}} |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0x7fffffffffffffff |
| /// CHECK: and x{{\d+}}, x{{\d+}}, #0x7fffffffffffffff |
| /// CHECK: csneg x{{\d+}}, x{{\d+}}, mi |
| /// CHECK-START-X86_64: java.lang.Long RemTest.$noinline$LongModLongMin(long) disassembly (after) |
| /// CHECK: Rem [{{j\d+}},{{j\d+}}] |
| /// CHECK-NOT: imul |
| /// CHECK-NOT: shrq |
| /// CHECK-NOT: imulq |
| /// CHECK: movq |
| /// CHECK: andq |
| /// CHECK: jz/eq |
| /// CHECK: movq |
| /// CHECK: sarq |
| /// CHECK: shlq |
| /// CHECK: orq |
| private static Long $noinline$LongModLongMin(long v) { |
| long r = v % Long.MIN_VALUE; |
| return r; |
| } |
| } |
