1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17public class Main {
18
19  /// CHECK-START: long Main.$noinline$longSelect(long) register (before)
20  /// CHECK:         <<Cond:z\d+>> LessThanOrEqual [{{j\d+}},{{j\d+}}]
21  /// CHECK-NEXT:                  Select [{{j\d+}},{{j\d+}},<<Cond>>]
22
23  public long $noinline$longSelect(long param) {
24    if (doThrow) { throw new Error(); }
25    long val_true = longB;
26    long val_false = longC;
27    return (param > longA) ? val_true : val_false;
28  }
29
30  /// CHECK-START: long Main.$noinline$longSelect_Constant(long) register (before)
31  /// CHECK:         <<Const:j\d+>> LongConstant
32  /// CHECK:         <<Cond:z\d+>>  LessThanOrEqual [{{j\d+}},<<Const>>]
33  /// CHECK-NEXT:                   Select [{{j\d+}},{{j\d+}},<<Cond>>]
34
35  // Condition can be non-materialized on X86 because the condition does not
36  // request 4 registers any more.
37  /// CHECK-START-X86: long Main.$noinline$longSelect_Constant(long) disassembly (after)
38  /// CHECK:             LessThanOrEqual
39  /// CHECK-NEXT:        Select
40
41  // Check that we generate CMOV for long on x86_64.
42  /// CHECK-START-X86_64: long Main.$noinline$longSelect_Constant(long) disassembly (after)
43  /// CHECK:             LessThanOrEqual
44  /// CHECK-NEXT:        Select
45  /// CHECK:             cmpq
46  /// CHECK:             cmovle/ngq
47
48  public long $noinline$longSelect_Constant(long param) {
49    if (doThrow) { throw new Error(); }
50    long val_true = longB;
51    long val_false = longC;
52    return (param > 3L) ? val_true : val_false;
53  }
54
55  // Check that we generate CMOV for int on x86_64.
56  /// CHECK-START-X86_64: int Main.$noinline$intSelect_Constant(int) disassembly (after)
57  /// CHECK:             LessThan
58  /// CHECK-NEXT:        Select
59  /// CHECK:             cmp
60  /// CHECK:             cmovl/nge
61
62  public int $noinline$intSelect_Constant(int param) {
63    if (doThrow) { throw new Error(); }
64    int val_true = intB;
65    int val_false = intC;
66    return (param >= 3) ? val_true : val_false;
67  }
68
69  public static void main(String[] args) {
70    Main m = new Main();
71    assertLongEquals(5L, m.$noinline$longSelect(4L));
72    assertLongEquals(7L, m.$noinline$longSelect(2L));
73    assertLongEquals(5L, m.$noinline$longSelect_Constant(4L));
74    assertLongEquals(7L, m.$noinline$longSelect_Constant(2L));
75    assertIntEquals(5, m.$noinline$intSelect_Constant(4));
76    assertIntEquals(7, m.$noinline$intSelect_Constant(2));
77  }
78
79  public static void assertIntEquals(int expected, int actual) {
80    if (expected != actual) {
81      throw new Error(expected + " != " + actual);
82    }
83  }
84
85  public static void assertLongEquals(long expected, long actual) {
86    if (expected != actual) {
87      throw new Error(expected + " != " + actual);
88    }
89  }
90
91  public boolean doThrow = false;
92
93  public long longA = 3L;
94  public long longB = 5L;
95  public long longC = 7L;
96  public int intB = 5;
97  public int intC = 7;
98}
99