1# Copyright (C) 2017 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15.class public LStoreLoad;
16
17.super Ljava/lang/Object;
18
19## CHECK-START: int StoreLoad.test(int) load_store_elimination (before)
20## CHECK-DAG:     <<Arg:i\d+>>    ParameterValue
21## CHECK-DAG:                     StaticFieldSet [{{l\d+}},<<Arg>>] field_name:StoreLoad.byteField
22## CHECK-DAG:                     StaticFieldSet [{{l\d+}},<<Arg>>] field_name:StoreLoad.byteField2
23## CHECK-DAG:     <<Val:b\d+>>    StaticFieldGet [{{l\d+}}] field_name:StoreLoad.byteField
24## CHECK-DAG:     <<Val2:b\d+>>   StaticFieldGet [{{l\d+}}] field_name:StoreLoad.byteField2
25## CHECK-DAG:     <<Val3:i\d+>>   Add [<<Val>>,<<Val2>>]
26## CHECK-DAG:                     Return [<<Val3>>]
27
28## CHECK-START: int StoreLoad.test(int) load_store_elimination (after)
29## CHECK-NOT:                     StaticFieldGet
30
31## CHECK-START: int StoreLoad.test(int) load_store_elimination (after)
32## CHECK-DAG:     <<Arg:i\d+>>    ParameterValue
33## CHECK-DAG:                     StaticFieldSet [{{l\d+}},<<Arg>>] field_name:StoreLoad.byteField
34## CHECK-DAG:                     StaticFieldSet [{{l\d+}},<<Arg>>] field_name:StoreLoad.byteField2
35## CHECK-DAG:     <<Conv:b\d+>>   TypeConversion [<<Arg>>]
36## CHECK-DAG:     <<Val3:i\d+>>   Add [<<Conv>>,<<Conv>>]
37## CHECK-DAG:                     Return [<<Val3>>]
38.method public static test(I)I
39    .registers 2
40    sput-byte v1, LStoreLoad;->byteField:B
41    sput-byte v1, LStoreLoad;->byteField2:B
42    sget-byte v0, LStoreLoad;->byteField:B
43    sget-byte v1, LStoreLoad;->byteField2:B
44    add-int/2addr v0, v1
45    return v0
46.end method
47
48## CHECK-START: int StoreLoad.test2(int) load_store_elimination (before)
49## CHECK-DAG:     <<Arg:i\d+>>    ParameterValue
50## CHECK-DAG:                     StaticFieldSet [{{l\d+}},<<Arg>>] field_name:StoreLoad.byteField
51## CHECK-DAG:                     Return [<<Arg>>]
52
53## CHECK-START: int StoreLoad.test2(int) load_store_elimination (after)
54## CHECK-NOT:                     TypeConversion
55.method public static test2(I)I
56    .registers 1
57    sput-byte v0, LStoreLoad;->byteField:B
58    return v0
59.end method
60
61## CHECK-START: int StoreLoad.test3(int) load_store_elimination (before)
62## CHECK-DAG:                     StaticFieldSet
63## CHECK-DAG:                     StaticFieldSet
64## CHECK-DAG:                     StaticFieldGet
65## CHECK-DAG:                     StaticFieldSet
66## CHECK-DAG:                     TypeConversion
67## CHECK-DAG:                     Phi
68## CHECK-DAG:                     StaticFieldGet
69
70## CHECK-START: int StoreLoad.test3(int) load_store_elimination (after)
71## CHECK-DAG:                     StaticFieldSet
72## CHECK-DAG:                     StaticFieldSet
73## CHECK-DAG:                     TypeConversion
74## CHECK-DAG:                     StaticFieldSet
75## CHECK-DAG:                     Phi
76## CHECK-DAG:                     Phi
77
78## CHECK-START: int StoreLoad.test3(int) load_store_elimination (after)
79## CHECK:                         Phi
80## CHECK:                         Phi
81## CHECK-NOT:                     Phi
82
83## CHECK-START: int StoreLoad.test3(int) load_store_elimination (after)
84## CHECK:                         TypeConversion
85## CHECK-NOT:                     TypeConversion
86
87## CHECK-START: int StoreLoad.test3(int) load_store_elimination (after)
88## CHECK-NOT:                     StaticFieldGet
89.method public static test3(I)I
90    .registers 3
91    const/4 v0, 0
92    sput p0, LStoreLoad;->intField:I
93    and-int/lit8 v1, p0, 1
94    if-eqz v1, :skip
95
96    sput-byte p0, LStoreLoad;->byteField:B
97    sget-byte v1, LStoreLoad;->byteField:B
98    sput v1, LStoreLoad;->intField:I
99    # Test that this TypeConversion is moved and used for the
100    # sget-byte above instead of creating a new one.
101    int-to-byte v0, p0
102
103    :skip
104    sget v1, LStoreLoad;->intField:I
105    add-int v0, v1, v0
106    return v0
107.end method
108
109## CHECK-START: int StoreLoad.test4(int) load_store_elimination (before)
110## CHECK-DAG:                     StaticFieldSet
111## CHECK-DAG:                     StaticFieldSet
112## CHECK-DAG:                     StaticFieldSet
113## CHECK-DAG:                     StaticFieldSet
114
115## CHECK-START: int StoreLoad.test4(int) load_store_elimination (after)
116## CHECK-DAG:                     StaticFieldSet
117## CHECK-DAG:                     StaticFieldSet
118## CHECK-DAG:                     StaticFieldSet
119## CHECK-DAG:                     StaticFieldSet
120.method public static test4(I)I
121    # Test that stores are kept properly for an irreducible loop.
122    .registers 3
123    const/4 v0, 0
124    const/4 v1, 7
125    if-gt p0, v1, :skip1
126
127    const/4 v1, 1
128    sput v1, LStoreLoad;->intField:I
129    goto :irreducible_loop_middle
130
131    :skip1
132    const/4 v1, 2
133    sput v1, LStoreLoad;->intField:I
134    # Fall through to the irreducible loop
135
136    :irreducible_loop
137    const/4 v1, 3
138    sput v1, LStoreLoad;->intField:I
139    if-eq v0, p0, :end
140
141    :irreducible_loop_middle
142    const/4 v1, 4
143    sput v1, LStoreLoad;->intField:I
144    add-int/lit8 v0, v0, 1
145    goto :irreducible_loop
146
147    :end
148    return p0
149.end method
150
151.field public static intField:I
152.field public static byteField:B
153.field public static byteField2:B
154