| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <vector> |
| |
| #include "src/v8.h" |
| |
| #include "src/interpreter/bytecodes.h" |
| #include "test/unittests/test-utils.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace interpreter { |
| |
| TEST(OperandConversion, Registers) { |
| int register_count = Register::MaxRegisterIndex() + 1; |
| int step = register_count / 7; |
| for (int i = 0; i < register_count; i += step) { |
| if (i <= kMaxInt8) { |
| uint8_t operand0 = Register(i).ToOperand(); |
| Register reg0 = Register::FromOperand(operand0); |
| CHECK_EQ(i, reg0.index()); |
| } |
| |
| uint16_t operand1 = Register(i).ToWideOperand(); |
| Register reg1 = Register::FromWideOperand(operand1); |
| CHECK_EQ(i, reg1.index()); |
| |
| uint32_t operand2 = Register(i).ToRawOperand(); |
| Register reg2 = Register::FromRawOperand(operand2); |
| CHECK_EQ(i, reg2.index()); |
| } |
| |
| for (int i = 0; i <= kMaxUInt8; i++) { |
| uint8_t operand = static_cast<uint8_t>(i); |
| Register reg = Register::FromOperand(operand); |
| if (i > 0 && i < -kMinInt8) { |
| CHECK(reg.is_parameter()); |
| } else { |
| CHECK(!reg.is_parameter()); |
| } |
| } |
| } |
| |
| |
| TEST(OperandConversion, Parameters) { |
| int parameter_counts[] = {7, 13, 99}; |
| |
| size_t count = sizeof(parameter_counts) / sizeof(parameter_counts[0]); |
| for (size_t p = 0; p < count; p++) { |
| int parameter_count = parameter_counts[p]; |
| for (int i = 0; i < parameter_count; i++) { |
| Register r = Register::FromParameterIndex(i, parameter_count); |
| uint8_t operand_value = r.ToOperand(); |
| Register s = Register::FromOperand(operand_value); |
| CHECK_EQ(i, s.ToParameterIndex(parameter_count)); |
| } |
| } |
| } |
| |
| |
| TEST(OperandConversion, RegistersParametersNoOverlap) { |
| int register_count = Register::MaxRegisterIndex() + 1; |
| int parameter_count = Register::MaxParameterIndex() + 1; |
| int32_t register_space_size = base::bits::RoundUpToPowerOfTwo32( |
| static_cast<uint32_t>(register_count + parameter_count)); |
| uint32_t range = static_cast<uint32_t>(register_space_size); |
| std::vector<uint8_t> operand_count(range); |
| |
| for (int i = 0; i < register_count; i += 1) { |
| Register r = Register(i); |
| uint32_t operand = r.ToWideOperand(); |
| CHECK_LT(operand, operand_count.size()); |
| operand_count[operand] += 1; |
| CHECK_EQ(operand_count[operand], 1); |
| } |
| |
| for (int i = 0; i < parameter_count; i += 1) { |
| Register r = Register::FromParameterIndex(i, parameter_count); |
| uint32_t operand = r.ToWideOperand(); |
| CHECK_LT(operand, operand_count.size()); |
| operand_count[operand] += 1; |
| CHECK_EQ(operand_count[operand], 1); |
| } |
| } |
| |
| TEST(Bytecodes, HasAnyRegisterOperands) { |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kAdd), 1); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kCall), 2); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kCallRuntime), 1); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kCallRuntimeWide), 1); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kCallRuntimeForPair), |
| 2); |
| CHECK_EQ( |
| Bytecodes::NumberOfRegisterOperands(Bytecode::kCallRuntimeForPairWide), |
| 2); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kDeletePropertyStrict), |
| 1); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kDeleteLookupSlot), 0); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kForInPrepare), 1); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kForInPrepareWide), 1); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kInc), 0); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kJumpIfTrue), 0); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kNew), 2); |
| CHECK_EQ(Bytecodes::NumberOfRegisterOperands(Bytecode::kToName), 0); |
| } |
| |
| TEST(Bytecodes, RegisterOperandBitmaps) { |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kAdd), 1); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kCallRuntimeForPair), |
| 10); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kStar), 1); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kMov), 3); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kTestIn), 1); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kForInPrepare), 1); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kForInDone), 3); |
| CHECK_EQ(Bytecodes::GetRegisterOperandBitmap(Bytecode::kForInNext), 7); |
| } |
| |
| } // namespace interpreter |
| } // namespace internal |
| } // namespace v8 |