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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 "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::kVerifyNone, 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(4u /* num_vregs */, 16u /* method_idx */, 32u /* proto_idx */,
0xcafe /* arg_regs */, instruction);
const Instruction* ins = Instruction::At(instruction);
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(4u /* num_vregs */, 16u /* method_idx */, 32u /* proto_idx */,
0xcafe /* arg_regs */, instruction);
const Instruction* ins = Instruction::At(instruction);
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());
}
} // namespace art
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