| // 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) { |
| for (int i = 0; i < 128; i++) { |
| uint8_t operand_value = Register(i).ToOperand(); |
| Register r = Register::FromOperand(operand_value); |
| CHECK_EQ(i, r.index()); |
| } |
| } |
| |
| |
| 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) { |
| std::vector<uint8_t> operand_count(256); |
| |
| for (int i = 0; i <= kMaxInt8; i++) { |
| Register r = Register(i); |
| uint8_t operand = r.ToOperand(); |
| operand_count[operand] += 1; |
| CHECK_EQ(operand_count[operand], 1); |
| } |
| |
| int parameter_count = Register::MaxParameterIndex() + 1; |
| for (int i = 0; i < parameter_count; i++) { |
| Register r = Register::FromParameterIndex(i, parameter_count); |
| uint8_t operand = r.ToOperand(); |
| operand_count[operand] += 1; |
| CHECK_EQ(operand_count[operand], 1); |
| } |
| } |
| |
| } // namespace interpreter |
| } // namespace internal |
| } // namespace v8 |