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/*
* Copyright (C) 2015 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.
*/
#include "dex_instruction-inl.h"
#include "dex_instruction_iterator.h"
#include "gtest/gtest.h"
namespace art {
TEST(StaticGetters, PropertiesOfNopTest) {
Instruction::Code nop = Instruction::NOP;
EXPECT_STREQ("nop", Instruction::Name(nop));
EXPECT_EQ(Instruction::k10x, Instruction::FormatOf(nop));
EXPECT_EQ(Instruction::kIndexNone, Instruction::IndexTypeOf(nop));
EXPECT_EQ(Instruction::kContinue, Instruction::FlagsOf(nop));
EXPECT_EQ(Instruction::kVerifyNothing, Instruction::VerifyFlagsOf(nop));
}
static void Build45cc(uint8_t num_args, uint16_t method_idx, uint16_t proto_idx,
uint16_t arg_regs, uint16_t* out) {
// A = num argument registers
// B = method_idx
// C - G = argument registers
// H = proto_idx
//
// op = 0xFA
//
// format:
// AG op BBBB FEDC HHHH
out[0] = 0;
out[0] |= (num_args << 12);
out[0] |= 0x00FA;
out[1] = method_idx;
out[2] = arg_regs;
out[3] = proto_idx;
}
static void Build4rcc(uint16_t num_args, uint16_t method_idx, uint16_t proto_idx,
uint16_t arg_regs_start, uint16_t* out) {
// A = num argument registers
// B = method_idx
// C = first argument register
// H = proto_idx
//
// op = 0xFB
//
// format:
// AA op BBBB CCCC HHHH
out[0] = 0;
out[0] |= (num_args << 8);
out[0] |= 0x00FB;
out[1] = method_idx;
out[2] = arg_regs_start;
out[3] = proto_idx;
}
TEST(Instruction, PropertiesOf45cc) {
uint16_t instruction[4];
Build45cc(/* num_args= */ 4u,
/* method_idx= */ 16u,
/* proto_idx= */ 32u,
/* arg_regs= */ 0xcafe,
instruction);
DexInstructionIterator ins(instruction, /*dex_pc=*/ 0u);
ASSERT_EQ(4u, ins->SizeInCodeUnits());
ASSERT_TRUE(ins->HasVRegA());
ASSERT_EQ(4, ins->VRegA());
ASSERT_EQ(4u, ins->VRegA_45cc());
ASSERT_EQ(4u, ins->VRegA_45cc(instruction[0]));
ASSERT_TRUE(ins->HasVRegB());
ASSERT_EQ(16, ins->VRegB());
ASSERT_EQ(16u, ins->VRegB_45cc());
ASSERT_TRUE(ins->HasVRegC());
ASSERT_EQ(0xe, ins->VRegC());
ASSERT_EQ(0xe, ins->VRegC_45cc());
ASSERT_TRUE(ins->HasVRegH());
ASSERT_EQ(32, ins->VRegH());
ASSERT_EQ(32, ins->VRegH_45cc());
ASSERT_TRUE(ins->HasVarArgs());
uint32_t arg_regs[Instruction::kMaxVarArgRegs];
ins->GetVarArgs(arg_regs);
ASSERT_EQ(0xeu, arg_regs[0]);
ASSERT_EQ(0xfu, arg_regs[1]);
ASSERT_EQ(0xau, arg_regs[2]);
ASSERT_EQ(0xcu, arg_regs[3]);
}
TEST(Instruction, PropertiesOf4rcc) {
uint16_t instruction[4];
Build4rcc(/* num_args= */ 4u,
/* method_idx= */ 16u,
/* proto_idx= */ 32u,
/* arg_regs_start= */ 0xcafe,
instruction);
DexInstructionIterator ins(instruction, /*dex_pc=*/ 0u);
ASSERT_EQ(4u, ins->SizeInCodeUnits());
ASSERT_TRUE(ins->HasVRegA());
ASSERT_EQ(4, ins->VRegA());
ASSERT_EQ(4u, ins->VRegA_4rcc());
ASSERT_EQ(4u, ins->VRegA_4rcc(instruction[0]));
ASSERT_TRUE(ins->HasVRegB());
ASSERT_EQ(16, ins->VRegB());
ASSERT_EQ(16u, ins->VRegB_4rcc());
ASSERT_TRUE(ins->HasVRegC());
ASSERT_EQ(0xcafe, ins->VRegC());
ASSERT_EQ(0xcafe, ins->VRegC_4rcc());
ASSERT_TRUE(ins->HasVRegH());
ASSERT_EQ(32, ins->VRegH());
ASSERT_EQ(32, ins->VRegH_4rcc());
ASSERT_FALSE(ins->HasVarArgs());
}
static void Build35c(uint16_t* out,
Instruction::Code code,
uint16_t method_idx,
const std::vector<uint16_t>& args) {
out[0] = 0;
out[0] |= (args.size() << 12);
out[0] |= static_cast<uint16_t>(code);
out[1] = method_idx;
size_t i = 0;
out[2] = 0;
for (; i < 4 && i < args.size(); ++i) {
out[2] |= args[i] << (i * 4);
}
if (args.size() == 5) {
out[0] |= args[4] << 8;
}
}
static std::string DumpInst35c(Instruction::Code code,
uint16_t method_idx,
const std::vector<uint16_t>& args) {
uint16_t inst[6] = {};
Build35c(inst, code, method_idx, args);
return Instruction::At(inst)->DumpString(nullptr);
}
TEST(Instruction, DumpString) {
EXPECT_EQ(DumpInst35c(Instruction::FILLED_NEW_ARRAY, 1234, {3, 2}),
"filled-new-array {v3, v2}, type@1234");
EXPECT_EQ(DumpInst35c(Instruction::INVOKE_VIRTUAL, 1234, {3, 2, 1, 5, 6}),
"invoke-virtual {v3, v2, v1, v5, v6}, thing@1234");
EXPECT_EQ(DumpInst35c(Instruction::INVOKE_VIRTUAL_QUICK, 1234, {3, 2, 1, 5}),
"invoke-virtual-quick {v3, v2, v1, v5}, thing@1234");
EXPECT_EQ(DumpInst35c(Instruction::INVOKE_CUSTOM, 1234, {3, 2, 1}),
"invoke-custom {v3, v2, v1}, thing@1234");
}
} // namespace art
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