4edebb1cd8
This CL reduces the number of dependencies bytecodes.{h,cc} to facilitate
generating the bytecode peephole optimizer table during build. Specifically,
it avoids depending on v8_base.
BUG=v8:4280
LOG=N
Review-Url: https://codereview.chromium.org/2135273002
Cr-Commit-Position: refs/heads/master@{#37715}
250 lines
10 KiB
C++
250 lines
10 KiB
C++
// 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/bytecode-register.h"
|
|
#include "src/interpreter/bytecodes.h"
|
|
#include "test/unittests/test-utils.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
namespace interpreter {
|
|
|
|
TEST(OperandConversion, Registers) {
|
|
int register_count = 128;
|
|
int step = register_count / 7;
|
|
for (int i = 0; i < register_count; i += step) {
|
|
if (i <= kMaxInt8) {
|
|
uint32_t operand0 = Register(i).ToOperand();
|
|
Register reg0 = Register::FromOperand(operand0);
|
|
CHECK_EQ(i, reg0.index());
|
|
}
|
|
|
|
uint32_t operand1 = Register(i).ToOperand();
|
|
Register reg1 = Register::FromOperand(operand1);
|
|
CHECK_EQ(i, reg1.index());
|
|
|
|
uint32_t operand2 = Register(i).ToOperand();
|
|
Register reg2 = Register::FromOperand(operand2);
|
|
CHECK_EQ(i, reg2.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);
|
|
uint32_t operand_value = r.ToOperand();
|
|
Register s = Register::FromOperand(operand_value);
|
|
CHECK_EQ(i, s.ToParameterIndex(parameter_count));
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(OperandConversion, RegistersParametersNoOverlap) {
|
|
int register_count = 128;
|
|
int parameter_count = 100;
|
|
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);
|
|
int32_t operand = r.ToOperand();
|
|
uint8_t index = static_cast<uint8_t>(operand);
|
|
CHECK_LT(index, operand_count.size());
|
|
operand_count[index] += 1;
|
|
CHECK_EQ(operand_count[index], 1);
|
|
}
|
|
|
|
for (int i = 0; i < parameter_count; i += 1) {
|
|
Register r = Register::FromParameterIndex(i, parameter_count);
|
|
uint32_t operand = r.ToOperand();
|
|
uint8_t index = static_cast<uint8_t>(operand);
|
|
CHECK_LT(index, operand_count.size());
|
|
operand_count[index] += 1;
|
|
CHECK_EQ(operand_count[index], 1);
|
|
}
|
|
}
|
|
|
|
TEST(OperandScaling, ScalableAndNonScalable) {
|
|
const OperandScale kOperandScales[] = {
|
|
#define VALUE(Name, _) OperandScale::k##Name,
|
|
OPERAND_SCALE_LIST(VALUE)
|
|
#undef VALUE
|
|
};
|
|
|
|
for (OperandScale operand_scale : kOperandScales) {
|
|
int scale = static_cast<int>(operand_scale);
|
|
CHECK_EQ(Bytecodes::Size(Bytecode::kCallRuntime, operand_scale),
|
|
1 + 2 + 2 * scale);
|
|
CHECK_EQ(Bytecodes::Size(Bytecode::kCreateObjectLiteral, operand_scale),
|
|
1 + 2 * scale + 1);
|
|
CHECK_EQ(Bytecodes::Size(Bytecode::kTestIn, operand_scale), 1 + scale);
|
|
}
|
|
}
|
|
|
|
TEST(Bytecodes, RegisterOperands) {
|
|
CHECK(Bytecodes::IsRegisterOperandType(OperandType::kReg));
|
|
CHECK(Bytecodes::IsRegisterInputOperandType(OperandType::kReg));
|
|
CHECK(!Bytecodes::IsRegisterOutputOperandType(OperandType::kReg));
|
|
CHECK(!Bytecodes::IsRegisterInputOperandType(OperandType::kRegOut));
|
|
CHECK(Bytecodes::IsRegisterOutputOperandType(OperandType::kRegOut));
|
|
|
|
#define IS_REGISTER_OPERAND_TYPE(Name, _) \
|
|
CHECK(Bytecodes::IsRegisterOperandType(OperandType::k##Name));
|
|
REGISTER_OPERAND_TYPE_LIST(IS_REGISTER_OPERAND_TYPE)
|
|
#undef IS_REGISTER_OPERAND_TYPE
|
|
|
|
#define IS_NOT_REGISTER_OPERAND_TYPE(Name, _) \
|
|
CHECK(!Bytecodes::IsRegisterOperandType(OperandType::k##Name));
|
|
NON_REGISTER_OPERAND_TYPE_LIST(IS_NOT_REGISTER_OPERAND_TYPE)
|
|
#undef IS_NOT_REGISTER_OPERAND_TYPE
|
|
|
|
#define IS_REGISTER_INPUT_OPERAND_TYPE(Name, _) \
|
|
CHECK(Bytecodes::IsRegisterInputOperandType(OperandType::k##Name));
|
|
REGISTER_INPUT_OPERAND_TYPE_LIST(IS_REGISTER_INPUT_OPERAND_TYPE)
|
|
#undef IS_REGISTER_INPUT_OPERAND_TYPE
|
|
|
|
#define IS_NOT_REGISTER_INPUT_OPERAND_TYPE(Name, _) \
|
|
CHECK(!Bytecodes::IsRegisterInputOperandType(OperandType::k##Name));
|
|
NON_REGISTER_OPERAND_TYPE_LIST(IS_NOT_REGISTER_INPUT_OPERAND_TYPE);
|
|
REGISTER_OUTPUT_OPERAND_TYPE_LIST(IS_NOT_REGISTER_INPUT_OPERAND_TYPE)
|
|
#undef IS_NOT_REGISTER_INPUT_OPERAND_TYPE
|
|
|
|
#define IS_REGISTER_OUTPUT_OPERAND_TYPE(Name, _) \
|
|
CHECK(Bytecodes::IsRegisterOutputOperandType(OperandType::k##Name));
|
|
REGISTER_OUTPUT_OPERAND_TYPE_LIST(IS_REGISTER_OUTPUT_OPERAND_TYPE)
|
|
#undef IS_REGISTER_OUTPUT_OPERAND_TYPE
|
|
|
|
#define IS_NOT_REGISTER_OUTPUT_OPERAND_TYPE(Name, _) \
|
|
CHECK(!Bytecodes::IsRegisterOutputOperandType(OperandType::k##Name));
|
|
NON_REGISTER_OPERAND_TYPE_LIST(IS_NOT_REGISTER_OUTPUT_OPERAND_TYPE)
|
|
REGISTER_INPUT_OPERAND_TYPE_LIST(IS_NOT_REGISTER_OUTPUT_OPERAND_TYPE)
|
|
#undef IS_NOT_REGISTER_INPUT_OPERAND_TYPE
|
|
}
|
|
|
|
TEST(Bytecodes, DebugBreakExistForEachBytecode) {
|
|
static const OperandScale kOperandScale = OperandScale::kSingle;
|
|
#define CHECK_DEBUG_BREAK_SIZE(Name, ...) \
|
|
if (!Bytecodes::IsDebugBreak(Bytecode::k##Name) && \
|
|
!Bytecodes::IsPrefixScalingBytecode(Bytecode::k##Name)) { \
|
|
Bytecode debug_bytecode = Bytecodes::GetDebugBreak(Bytecode::k##Name); \
|
|
CHECK_EQ(Bytecodes::Size(Bytecode::k##Name, kOperandScale), \
|
|
Bytecodes::Size(debug_bytecode, kOperandScale)); \
|
|
}
|
|
BYTECODE_LIST(CHECK_DEBUG_BREAK_SIZE)
|
|
#undef CHECK_DEBUG_BREAK_SIZE
|
|
}
|
|
|
|
TEST(Bytecodes, DebugBreakForPrefixBytecodes) {
|
|
CHECK_EQ(Bytecode::kDebugBreakWide,
|
|
Bytecodes::GetDebugBreak(Bytecode::kWide));
|
|
CHECK_EQ(Bytecode::kDebugBreakExtraWide,
|
|
Bytecodes::GetDebugBreak(Bytecode::kExtraWide));
|
|
}
|
|
|
|
TEST(Bytecodes, PrefixMappings) {
|
|
Bytecode prefixes[] = {Bytecode::kWide, Bytecode::kExtraWide};
|
|
TRACED_FOREACH(Bytecode, prefix, prefixes) {
|
|
CHECK_EQ(prefix, Bytecodes::OperandScaleToPrefixBytecode(
|
|
Bytecodes::PrefixBytecodeToOperandScale(prefix)));
|
|
}
|
|
}
|
|
|
|
TEST(Bytecodes, SizesForSignedOperands) {
|
|
CHECK(Bytecodes::SizeForSignedOperand(0) == OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMaxInt8) == OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMinInt8) == OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMaxInt8 + 1) == OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMinInt8 - 1) == OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMaxInt16) == OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMinInt16) == OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMaxInt16 + 1) == OperandSize::kQuad);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMinInt16 - 1) == OperandSize::kQuad);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMaxInt) == OperandSize::kQuad);
|
|
CHECK(Bytecodes::SizeForSignedOperand(kMinInt) == OperandSize::kQuad);
|
|
}
|
|
|
|
TEST(Bytecodes, SizesForUnsignedOperands) {
|
|
// int overloads
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(0) == OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(kMaxUInt8) == OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(kMaxUInt8 + 1) ==
|
|
OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(kMaxUInt16) == OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(kMaxUInt16 + 1) ==
|
|
OperandSize::kQuad);
|
|
// size_t overloads
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(static_cast<size_t>(0)) ==
|
|
OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(static_cast<size_t>(kMaxUInt8)) ==
|
|
OperandSize::kByte);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(static_cast<size_t>(kMaxUInt8 + 1)) ==
|
|
OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(static_cast<size_t>(kMaxUInt16)) ==
|
|
OperandSize::kShort);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(
|
|
static_cast<size_t>(kMaxUInt16 + 1)) == OperandSize::kQuad);
|
|
CHECK(Bytecodes::SizeForUnsignedOperand(static_cast<size_t>(kMaxUInt32)) ==
|
|
OperandSize::kQuad);
|
|
}
|
|
|
|
TEST(OperandScale, PrefixesRequired) {
|
|
CHECK(!Bytecodes::OperandScaleRequiresPrefixBytecode(OperandScale::kSingle));
|
|
CHECK(Bytecodes::OperandScaleRequiresPrefixBytecode(OperandScale::kDouble));
|
|
CHECK(
|
|
Bytecodes::OperandScaleRequiresPrefixBytecode(OperandScale::kQuadruple));
|
|
CHECK(Bytecodes::OperandScaleToPrefixBytecode(OperandScale::kDouble) ==
|
|
Bytecode::kWide);
|
|
CHECK(Bytecodes::OperandScaleToPrefixBytecode(OperandScale::kQuadruple) ==
|
|
Bytecode::kExtraWide);
|
|
}
|
|
|
|
TEST(AccumulatorUse, LogicalOperators) {
|
|
CHECK_EQ(AccumulatorUse::kNone | AccumulatorUse::kRead,
|
|
AccumulatorUse::kRead);
|
|
CHECK_EQ(AccumulatorUse::kRead | AccumulatorUse::kWrite,
|
|
AccumulatorUse::kReadWrite);
|
|
CHECK_EQ(AccumulatorUse::kRead & AccumulatorUse::kReadWrite,
|
|
AccumulatorUse::kRead);
|
|
CHECK_EQ(AccumulatorUse::kRead & AccumulatorUse::kWrite,
|
|
AccumulatorUse::kNone);
|
|
}
|
|
|
|
TEST(AccumulatorUse, SampleBytecodes) {
|
|
CHECK(Bytecodes::ReadsAccumulator(Bytecode::kStar));
|
|
CHECK(!Bytecodes::WritesAccumulator(Bytecode::kStar));
|
|
CHECK_EQ(Bytecodes::GetAccumulatorUse(Bytecode::kStar),
|
|
AccumulatorUse::kRead);
|
|
CHECK(!Bytecodes::ReadsAccumulator(Bytecode::kLdar));
|
|
CHECK(Bytecodes::WritesAccumulator(Bytecode::kLdar));
|
|
CHECK_EQ(Bytecodes::GetAccumulatorUse(Bytecode::kLdar),
|
|
AccumulatorUse::kWrite);
|
|
CHECK(Bytecodes::ReadsAccumulator(Bytecode::kAdd));
|
|
CHECK(Bytecodes::WritesAccumulator(Bytecode::kAdd));
|
|
CHECK_EQ(Bytecodes::GetAccumulatorUse(Bytecode::kAdd),
|
|
AccumulatorUse::kReadWrite);
|
|
}
|
|
|
|
TEST(AccumulatorUse, AccumulatorUseToString) {
|
|
std::set<std::string> names;
|
|
names.insert(Bytecodes::AccumulatorUseToString(AccumulatorUse::kNone));
|
|
names.insert(Bytecodes::AccumulatorUseToString(AccumulatorUse::kRead));
|
|
names.insert(Bytecodes::AccumulatorUseToString(AccumulatorUse::kWrite));
|
|
names.insert(Bytecodes::AccumulatorUseToString(AccumulatorUse::kReadWrite));
|
|
CHECK_EQ(names.size(), 4);
|
|
}
|
|
} // namespace interpreter
|
|
} // namespace internal
|
|
} // namespace v8
|