64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
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// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <vector>
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#include "src/v8.h"
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#include "src/interpreter/bytecodes.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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namespace interpreter {
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TEST(OperandConversion, Registers) {
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for (int i = 0; i < 128; i++) {
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uint8_t operand_value = Register(i).ToOperand();
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Register r = Register::FromOperand(operand_value);
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CHECK_EQ(i, r.index());
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}
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}
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TEST(OperandConversion, Parameters) {
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int parameter_counts[] = {7, 13, 99};
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size_t count = sizeof(parameter_counts) / sizeof(parameter_counts[0]);
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for (size_t p = 0; p < count; p++) {
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int parameter_count = parameter_counts[p];
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for (int i = 0; i < parameter_count; i++) {
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Register r = Register::FromParameterIndex(i, parameter_count);
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uint8_t operand_value = r.ToOperand();
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Register s = Register::FromOperand(operand_value);
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CHECK_EQ(i, s.ToParameterIndex(parameter_count));
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}
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}
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}
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TEST(OperandConversion, RegistersParametersNoOverlap) {
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std::vector<uint8_t> operand_count(256);
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for (int i = 0; i <= Register::kMaxRegisterIndex; i++) {
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Register r = Register(i);
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uint8_t operand = r.ToOperand();
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operand_count[operand] += 1;
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CHECK_EQ(operand_count[operand], 1);
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}
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int parameter_count = Register::MaxParameterIndex() + 1;
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for (int i = 0; i < parameter_count; i++) {
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Register r = Register::FromParameterIndex(i, parameter_count);
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uint8_t operand = r.ToOperand();
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operand_count[operand] += 1;
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CHECK_EQ(operand_count[operand], 1);
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}
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}
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} // namespace interpreter
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} // namespace internal
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} // namespace v8
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