| // 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 "test/unittests/compiler/interpreter-assembler-unittest.h" |
| |
| #include "src/compiler/graph.h" |
| #include "src/compiler/node.h" |
| #include "src/unique.h" |
| #include "test/unittests/compiler/compiler-test-utils.h" |
| #include "test/unittests/compiler/node-test-utils.h" |
| |
| using ::testing::_; |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| const interpreter::Bytecode kBytecodes[] = { |
| #define DEFINE_BYTECODE(Name, ...) interpreter::Bytecode::k##Name, |
| BYTECODE_LIST(DEFINE_BYTECODE) |
| #undef DEFINE_BYTECODE |
| }; |
| |
| |
| Graph* |
| InterpreterAssemblerTest::InterpreterAssemblerForTest::GetCompletedGraph() { |
| End(); |
| return graph(); |
| } |
| |
| |
| Matcher<Node*> InterpreterAssemblerTest::InterpreterAssemblerForTest::IsLoad( |
| const Matcher<LoadRepresentation>& rep_matcher, |
| const Matcher<Node*>& base_matcher, const Matcher<Node*>& index_matcher) { |
| return ::i::compiler::IsLoad(rep_matcher, base_matcher, index_matcher, |
| graph()->start(), graph()->start()); |
| } |
| |
| |
| Matcher<Node*> InterpreterAssemblerTest::InterpreterAssemblerForTest::IsStore( |
| const Matcher<StoreRepresentation>& rep_matcher, |
| const Matcher<Node*>& base_matcher, const Matcher<Node*>& index_matcher, |
| const Matcher<Node*>& value_matcher) { |
| return ::i::compiler::IsStore(rep_matcher, base_matcher, index_matcher, |
| value_matcher, graph()->start(), |
| graph()->start()); |
| } |
| |
| |
| Matcher<Node*> IsIntPtrAdd(const Matcher<Node*>& lhs_matcher, |
| const Matcher<Node*>& rhs_matcher) { |
| return kPointerSize == 8 ? IsInt64Add(lhs_matcher, rhs_matcher) |
| : IsInt32Add(lhs_matcher, rhs_matcher); |
| } |
| |
| |
| Matcher<Node*> IsIntPtrSub(const Matcher<Node*>& lhs_matcher, |
| const Matcher<Node*>& rhs_matcher) { |
| return kPointerSize == 8 ? IsInt64Sub(lhs_matcher, rhs_matcher) |
| : IsInt32Sub(lhs_matcher, rhs_matcher); |
| } |
| |
| |
| Matcher<Node*> IsWordShl(const Matcher<Node*>& lhs_matcher, |
| const Matcher<Node*>& rhs_matcher) { |
| return kPointerSize == 8 ? IsWord64Shl(lhs_matcher, rhs_matcher) |
| : IsWord32Shl(lhs_matcher, rhs_matcher); |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, Dispatch) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| m.Dispatch(); |
| Graph* graph = m.GetCompletedGraph(); |
| |
| Node* end = graph->end(); |
| EXPECT_EQ(1, end->InputCount()); |
| Node* tail_call_node = end->InputAt(0); |
| |
| Matcher<Node*> next_bytecode_offset_matcher = |
| IsIntPtrAdd(IsParameter(Linkage::kInterpreterBytecodeOffsetParameter), |
| IsInt32Constant(interpreter::Bytecodes::Size(bytecode))); |
| Matcher<Node*> target_bytecode_matcher = m.IsLoad( |
| kMachUint8, IsParameter(Linkage::kInterpreterBytecodeArrayParameter), |
| next_bytecode_offset_matcher); |
| Matcher<Node*> code_target_matcher = m.IsLoad( |
| kMachPtr, IsParameter(Linkage::kInterpreterDispatchTableParameter), |
| IsWord32Shl(target_bytecode_matcher, |
| IsInt32Constant(kPointerSizeLog2))); |
| |
| EXPECT_EQ(CallDescriptor::kCallCodeObject, m.call_descriptor()->kind()); |
| EXPECT_TRUE(m.call_descriptor()->flags() & CallDescriptor::kCanUseRoots); |
| EXPECT_THAT( |
| tail_call_node, |
| IsTailCall(m.call_descriptor(), code_target_matcher, |
| IsParameter(Linkage::kInterpreterAccumulatorParameter), |
| IsParameter(Linkage::kInterpreterRegisterFileParameter), |
| next_bytecode_offset_matcher, |
| IsParameter(Linkage::kInterpreterBytecodeArrayParameter), |
| IsParameter(Linkage::kInterpreterDispatchTableParameter), |
| graph->start(), graph->start())); |
| } |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, Return) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| m.Return(); |
| Graph* graph = m.GetCompletedGraph(); |
| |
| Node* end = graph->end(); |
| EXPECT_EQ(1, end->InputCount()); |
| Node* tail_call_node = end->InputAt(0); |
| |
| EXPECT_EQ(CallDescriptor::kCallCodeObject, m.call_descriptor()->kind()); |
| EXPECT_TRUE(m.call_descriptor()->flags() & CallDescriptor::kCanUseRoots); |
| Matcher<Unique<HeapObject>> exit_trampoline( |
| Unique<HeapObject>::CreateImmovable( |
| isolate()->builtins()->InterpreterExitTrampoline())); |
| EXPECT_THAT( |
| tail_call_node, |
| IsTailCall(m.call_descriptor(), IsHeapConstant(exit_trampoline), |
| IsParameter(Linkage::kInterpreterAccumulatorParameter), |
| IsParameter(Linkage::kInterpreterRegisterFileParameter), |
| IsParameter(Linkage::kInterpreterBytecodeOffsetParameter), |
| IsParameter(Linkage::kInterpreterBytecodeArrayParameter), |
| IsParameter(Linkage::kInterpreterDispatchTableParameter), |
| graph->start(), graph->start())); |
| } |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperand) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| int number_of_operands = interpreter::Bytecodes::NumberOfOperands(bytecode); |
| for (int i = 0; i < number_of_operands; i++) { |
| Node* load_arg_node = m.BytecodeOperand(i); |
| EXPECT_THAT( |
| load_arg_node, |
| m.IsLoad( |
| kMachUint8, |
| IsParameter(Linkage::kInterpreterBytecodeArrayParameter), |
| IsIntPtrAdd( |
| IsParameter(Linkage::kInterpreterBytecodeOffsetParameter), |
| IsInt32Constant(1 + i)))); |
| } |
| } |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperandSignExtended) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| int number_of_operands = interpreter::Bytecodes::NumberOfOperands(bytecode); |
| for (int i = 0; i < number_of_operands; i++) { |
| Node* load_arg_node = m.BytecodeOperandSignExtended(i); |
| Matcher<Node*> load_matcher = m.IsLoad( |
| kMachInt8, IsParameter(Linkage::kInterpreterBytecodeArrayParameter), |
| IsIntPtrAdd(IsParameter(Linkage::kInterpreterBytecodeOffsetParameter), |
| IsInt32Constant(1 + i))); |
| if (kPointerSize == 8) { |
| load_matcher = IsChangeInt32ToInt64(load_matcher); |
| } |
| EXPECT_THAT(load_arg_node, load_matcher); |
| } |
| } |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, GetSetAccumulator) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| // Should be incoming accumulator if not set. |
| EXPECT_THAT(m.GetAccumulator(), |
| IsParameter(Linkage::kInterpreterAccumulatorParameter)); |
| |
| // Should be set by SedtAccumulator. |
| Node* accumulator_value_1 = m.Int32Constant(0xdeadbeef); |
| m.SetAccumulator(accumulator_value_1); |
| EXPECT_THAT(m.GetAccumulator(), accumulator_value_1); |
| Node* accumulator_value_2 = m.Int32Constant(42); |
| m.SetAccumulator(accumulator_value_2); |
| EXPECT_THAT(m.GetAccumulator(), accumulator_value_2); |
| |
| // Should be passed to next bytecode handler on dispatch. |
| m.Dispatch(); |
| Graph* graph = m.GetCompletedGraph(); |
| |
| Node* end = graph->end(); |
| EXPECT_EQ(1, end->InputCount()); |
| Node* tail_call_node = end->InputAt(0); |
| |
| EXPECT_THAT(tail_call_node, |
| IsTailCall(m.call_descriptor(), _, accumulator_value_2, _, _, _, |
| _, graph->start(), graph->start())); |
| } |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, LoadRegister) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| Node* reg_index_node = m.Int32Constant(44); |
| Node* load_reg_node = m.LoadRegister(reg_index_node); |
| EXPECT_THAT( |
| load_reg_node, |
| m.IsLoad(kMachPtr, |
| IsParameter(Linkage::kInterpreterRegisterFileParameter), |
| IsWordShl(reg_index_node, IsInt32Constant(kPointerSizeLog2)))); |
| } |
| } |
| |
| |
| TARGET_TEST_F(InterpreterAssemblerTest, StoreRegister) { |
| TRACED_FOREACH(interpreter::Bytecode, bytecode, kBytecodes) { |
| InterpreterAssemblerForTest m(this, bytecode); |
| Node* store_value = m.Int32Constant(0xdeadbeef); |
| Node* reg_index_node = m.Int32Constant(44); |
| Node* store_reg_node = m.StoreRegister(store_value, reg_index_node); |
| EXPECT_THAT( |
| store_reg_node, |
| m.IsStore(StoreRepresentation(kMachPtr, kNoWriteBarrier), |
| IsParameter(Linkage::kInterpreterRegisterFileParameter), |
| IsWordShl(reg_index_node, IsInt32Constant(kPointerSizeLog2)), |
| store_value)); |
| } |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |