diff options
Diffstat (limited to 'deps/v8/test/unittests/interpreter/bytecodes-unittest.cc')
-rw-r--r-- | deps/v8/test/unittests/interpreter/bytecodes-unittest.cc | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/deps/v8/test/unittests/interpreter/bytecodes-unittest.cc b/deps/v8/test/unittests/interpreter/bytecodes-unittest.cc new file mode 100644 index 0000000000..729978643f --- /dev/null +++ b/deps/v8/test/unittests/interpreter/bytecodes-unittest.cc @@ -0,0 +1,63 @@ +// 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 <= Register::kMaxRegisterIndex; 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 |