1 /*
2 * Copyright (C) 2015 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
17 #include "dex_instruction-inl.h"
18 #include "gtest/gtest.h"
19
20 namespace art {
21
TEST(StaticGetters,PropertiesOfNopTest)22 TEST(StaticGetters, PropertiesOfNopTest) {
23 Instruction::Code nop = Instruction::NOP;
24 EXPECT_STREQ("nop", Instruction::Name(nop));
25 EXPECT_EQ(Instruction::k10x, Instruction::FormatOf(nop));
26 EXPECT_EQ(Instruction::kIndexNone, Instruction::IndexTypeOf(nop));
27 EXPECT_EQ(Instruction::kContinue, Instruction::FlagsOf(nop));
28 EXPECT_EQ(Instruction::kVerifyNone, Instruction::VerifyFlagsOf(nop));
29 }
30
Build45cc(uint8_t num_args,uint16_t method_idx,uint16_t proto_idx,uint16_t arg_regs,uint16_t * out)31 static void Build45cc(uint8_t num_args, uint16_t method_idx, uint16_t proto_idx,
32 uint16_t arg_regs, uint16_t* out) {
33 // A = num argument registers
34 // B = method_idx
35 // C - G = argument registers
36 // H = proto_idx
37 //
38 // op = 0xFA
39 //
40 // format:
41 // AG op BBBB FEDC HHHH
42 out[0] = 0;
43 out[0] |= (num_args << 12);
44 out[0] |= 0x00FA;
45
46 out[1] = method_idx;
47 out[2] = arg_regs;
48 out[3] = proto_idx;
49 }
50
Build4rcc(uint16_t num_args,uint16_t method_idx,uint16_t proto_idx,uint16_t arg_regs_start,uint16_t * out)51 static void Build4rcc(uint16_t num_args, uint16_t method_idx, uint16_t proto_idx,
52 uint16_t arg_regs_start, uint16_t* out) {
53 // A = num argument registers
54 // B = method_idx
55 // C = first argument register
56 // H = proto_idx
57 //
58 // op = 0xFB
59 //
60 // format:
61 // AA op BBBB CCCC HHHH
62 out[0] = 0;
63 out[0] |= (num_args << 8);
64 out[0] |= 0x00FB;
65
66 out[1] = method_idx;
67 out[2] = arg_regs_start;
68 out[3] = proto_idx;
69 }
70
TEST(Instruction,PropertiesOf45cc)71 TEST(Instruction, PropertiesOf45cc) {
72 uint16_t instruction[4];
73 Build45cc(4u /* num_vregs */, 16u /* method_idx */, 32u /* proto_idx */,
74 0xcafe /* arg_regs */, instruction);
75
76 const Instruction* ins = Instruction::At(instruction);
77 ASSERT_EQ(4u, ins->SizeInCodeUnits());
78
79 ASSERT_TRUE(ins->HasVRegA());
80 ASSERT_EQ(4, ins->VRegA());
81 ASSERT_EQ(4u, ins->VRegA_45cc());
82 ASSERT_EQ(4u, ins->VRegA_45cc(instruction[0]));
83
84 ASSERT_TRUE(ins->HasVRegB());
85 ASSERT_EQ(16, ins->VRegB());
86 ASSERT_EQ(16u, ins->VRegB_45cc());
87
88 ASSERT_TRUE(ins->HasVRegC());
89 ASSERT_EQ(0xe, ins->VRegC());
90 ASSERT_EQ(0xe, ins->VRegC_45cc());
91
92 ASSERT_TRUE(ins->HasVRegH());
93 ASSERT_EQ(32, ins->VRegH());
94 ASSERT_EQ(32, ins->VRegH_45cc());
95
96 ASSERT_TRUE(ins->HasVarArgs());
97
98 uint32_t arg_regs[Instruction::kMaxVarArgRegs];
99 ins->GetVarArgs(arg_regs);
100 ASSERT_EQ(0xeu, arg_regs[0]);
101 ASSERT_EQ(0xfu, arg_regs[1]);
102 ASSERT_EQ(0xau, arg_regs[2]);
103 ASSERT_EQ(0xcu, arg_regs[3]);
104 }
105
TEST(Instruction,PropertiesOf4rcc)106 TEST(Instruction, PropertiesOf4rcc) {
107 uint16_t instruction[4];
108 Build4rcc(4u /* num_vregs */, 16u /* method_idx */, 32u /* proto_idx */,
109 0xcafe /* arg_regs */, instruction);
110
111 const Instruction* ins = Instruction::At(instruction);
112 ASSERT_EQ(4u, ins->SizeInCodeUnits());
113
114 ASSERT_TRUE(ins->HasVRegA());
115 ASSERT_EQ(4, ins->VRegA());
116 ASSERT_EQ(4u, ins->VRegA_4rcc());
117 ASSERT_EQ(4u, ins->VRegA_4rcc(instruction[0]));
118
119 ASSERT_TRUE(ins->HasVRegB());
120 ASSERT_EQ(16, ins->VRegB());
121 ASSERT_EQ(16u, ins->VRegB_4rcc());
122
123 ASSERT_TRUE(ins->HasVRegC());
124 ASSERT_EQ(0xcafe, ins->VRegC());
125 ASSERT_EQ(0xcafe, ins->VRegC_4rcc());
126
127 ASSERT_TRUE(ins->HasVRegH());
128 ASSERT_EQ(32, ins->VRegH());
129 ASSERT_EQ(32, ins->VRegH_4rcc());
130
131 ASSERT_FALSE(ins->HasVarArgs());
132 }
133
134 } // namespace art
135