Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1 | // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/compiler/js-create-lowering.h" |
| 6 | #include "src/code-factory.h" |
| 7 | #include "src/compiler/access-builder.h" |
| 8 | #include "src/compiler/js-graph.h" |
| 9 | #include "src/compiler/js-operator.h" |
| 10 | #include "src/compiler/machine-operator.h" |
| 11 | #include "src/compiler/node-properties.h" |
| 12 | #include "src/compiler/operator-properties.h" |
| 13 | #include "src/isolate-inl.h" |
| 14 | #include "test/unittests/compiler/compiler-test-utils.h" |
| 15 | #include "test/unittests/compiler/graph-unittest.h" |
| 16 | #include "test/unittests/compiler/node-test-utils.h" |
| 17 | #include "testing/gmock-support.h" |
| 18 | |
| 19 | using testing::_; |
| 20 | using testing::BitEq; |
| 21 | using testing::IsNaN; |
| 22 | |
| 23 | namespace v8 { |
| 24 | namespace internal { |
| 25 | namespace compiler { |
| 26 | |
| 27 | class JSCreateLoweringTest : public TypedGraphTest { |
| 28 | public: |
| 29 | JSCreateLoweringTest() |
| 30 | : TypedGraphTest(3), javascript_(zone()), deps_(isolate(), zone()) {} |
| 31 | ~JSCreateLoweringTest() override {} |
| 32 | |
| 33 | protected: |
| 34 | Reduction Reduce(Node* node) { |
| 35 | MachineOperatorBuilder machine(zone()); |
| 36 | SimplifiedOperatorBuilder simplified(zone()); |
| 37 | JSGraph jsgraph(isolate(), graph(), common(), javascript(), &simplified, |
| 38 | &machine); |
| 39 | // TODO(titzer): mock the GraphReducer here for better unit testing. |
| 40 | GraphReducer graph_reducer(zone(), graph()); |
| 41 | JSCreateLowering reducer(&graph_reducer, &deps_, &jsgraph, |
| 42 | MaybeHandle<LiteralsArray>(), zone()); |
| 43 | return reducer.Reduce(node); |
| 44 | } |
| 45 | |
| 46 | Node* FrameState(Handle<SharedFunctionInfo> shared, Node* outer_frame_state) { |
| 47 | Node* state_values = graph()->NewNode(common()->StateValues(0)); |
| 48 | return graph()->NewNode( |
| 49 | common()->FrameState( |
| 50 | BailoutId::None(), OutputFrameStateCombine::Ignore(), |
| 51 | common()->CreateFrameStateFunctionInfo( |
| 52 | FrameStateType::kJavaScriptFunction, 1, 0, shared)), |
| 53 | state_values, state_values, state_values, NumberConstant(0), |
| 54 | UndefinedConstant(), outer_frame_state); |
| 55 | } |
| 56 | |
| 57 | JSOperatorBuilder* javascript() { return &javascript_; } |
| 58 | |
| 59 | private: |
| 60 | JSOperatorBuilder javascript_; |
| 61 | CompilationDependencies deps_; |
| 62 | }; |
| 63 | |
| 64 | TEST_F(JSCreateLoweringTest, JSCreate) { |
| 65 | Handle<JSFunction> function = isolate()->object_function(); |
| 66 | Node* const target = Parameter(Type::Constant(function, graph()->zone())); |
| 67 | Node* const context = Parameter(Type::Any()); |
| 68 | Node* const effect = graph()->start(); |
| 69 | Reduction r = Reduce(graph()->NewNode(javascript()->Create(), target, target, |
| 70 | context, EmptyFrameState(), effect)); |
| 71 | ASSERT_TRUE(r.Changed()); |
| 72 | EXPECT_THAT( |
| 73 | r.replacement(), |
| 74 | IsFinishRegion( |
| 75 | IsAllocate(IsNumberConstant(function->initial_map()->instance_size()), |
| 76 | IsBeginRegion(effect), _), |
| 77 | _)); |
| 78 | } |
| 79 | |
| 80 | // ----------------------------------------------------------------------------- |
| 81 | // JSCreateArguments |
| 82 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 83 | TEST_F(JSCreateLoweringTest, JSCreateArgumentsInlinedMapped) { |
| 84 | Node* const closure = Parameter(Type::Any()); |
| 85 | Node* const context = UndefinedConstant(); |
| 86 | Node* const effect = graph()->start(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 87 | Handle<SharedFunctionInfo> shared(isolate()->object_function()->shared()); |
| 88 | Node* const frame_state_outer = FrameState(shared, graph()->start()); |
| 89 | Node* const frame_state_inner = FrameState(shared, frame_state_outer); |
| 90 | Reduction r = Reduce(graph()->NewNode( |
| 91 | javascript()->CreateArguments(CreateArgumentsType::kMappedArguments), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 92 | closure, context, frame_state_inner, effect)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 93 | ASSERT_TRUE(r.Changed()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 94 | EXPECT_THAT( |
| 95 | r.replacement(), |
| 96 | IsFinishRegion( |
| 97 | IsAllocate(IsNumberConstant(JSSloppyArgumentsObject::kSize), _, _), |
| 98 | _)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | TEST_F(JSCreateLoweringTest, JSCreateArgumentsInlinedUnmapped) { |
| 102 | Node* const closure = Parameter(Type::Any()); |
| 103 | Node* const context = UndefinedConstant(); |
| 104 | Node* const effect = graph()->start(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 105 | Handle<SharedFunctionInfo> shared(isolate()->object_function()->shared()); |
| 106 | Node* const frame_state_outer = FrameState(shared, graph()->start()); |
| 107 | Node* const frame_state_inner = FrameState(shared, frame_state_outer); |
| 108 | Reduction r = Reduce(graph()->NewNode( |
| 109 | javascript()->CreateArguments(CreateArgumentsType::kUnmappedArguments), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 110 | closure, context, frame_state_inner, effect)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 111 | ASSERT_TRUE(r.Changed()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 112 | EXPECT_THAT( |
| 113 | r.replacement(), |
| 114 | IsFinishRegion( |
| 115 | IsAllocate(IsNumberConstant(JSStrictArgumentsObject::kSize), _, _), |
| 116 | _)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | TEST_F(JSCreateLoweringTest, JSCreateArgumentsInlinedRestArray) { |
| 120 | Node* const closure = Parameter(Type::Any()); |
| 121 | Node* const context = UndefinedConstant(); |
| 122 | Node* const effect = graph()->start(); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 123 | Handle<SharedFunctionInfo> shared(isolate()->object_function()->shared()); |
| 124 | Node* const frame_state_outer = FrameState(shared, graph()->start()); |
| 125 | Node* const frame_state_inner = FrameState(shared, frame_state_outer); |
| 126 | Reduction r = Reduce(graph()->NewNode( |
| 127 | javascript()->CreateArguments(CreateArgumentsType::kRestParameter), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 128 | closure, context, frame_state_inner, effect)); |
| 129 | ASSERT_TRUE(r.Changed()); |
| 130 | EXPECT_THAT( |
| 131 | r.replacement(), |
| 132 | IsFinishRegion(IsAllocate(IsNumberConstant(JSArray::kSize), _, _), _)); |
| 133 | } |
| 134 | |
| 135 | // ----------------------------------------------------------------------------- |
| 136 | // JSCreateClosure |
| 137 | |
| 138 | TEST_F(JSCreateLoweringTest, JSCreateClosureViaInlinedAllocation) { |
| 139 | Node* const context = UndefinedConstant(); |
| 140 | Node* const effect = graph()->start(); |
| 141 | Node* const control = graph()->start(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 142 | Handle<SharedFunctionInfo> shared(isolate()->number_function()->shared()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 143 | Reduction r = |
| 144 | Reduce(graph()->NewNode(javascript()->CreateClosure(shared, NOT_TENURED), |
| 145 | context, effect, control)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 146 | ASSERT_TRUE(r.Changed()); |
| 147 | EXPECT_THAT(r.replacement(), |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 148 | IsFinishRegion(IsAllocate(IsNumberConstant(JSFunction::kSize), |
| 149 | IsBeginRegion(_), control), |
| 150 | _)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | // ----------------------------------------------------------------------------- |
| 154 | // JSCreateFunctionContext |
| 155 | |
| 156 | TEST_F(JSCreateLoweringTest, JSCreateFunctionContextViaInlinedAllocation) { |
| 157 | Node* const closure = Parameter(Type::Any()); |
| 158 | Node* const context = Parameter(Type::Any()); |
| 159 | Node* const effect = graph()->start(); |
| 160 | Node* const control = graph()->start(); |
| 161 | Reduction const r = |
| 162 | Reduce(graph()->NewNode(javascript()->CreateFunctionContext(8), closure, |
| 163 | context, effect, control)); |
| 164 | ASSERT_TRUE(r.Changed()); |
| 165 | EXPECT_THAT(r.replacement(), |
| 166 | IsFinishRegion(IsAllocate(IsNumberConstant(Context::SizeFor( |
| 167 | 8 + Context::MIN_CONTEXT_SLOTS)), |
| 168 | IsBeginRegion(_), control), |
| 169 | _)); |
| 170 | } |
| 171 | |
| 172 | // ----------------------------------------------------------------------------- |
| 173 | // JSCreateWithContext |
| 174 | |
| 175 | TEST_F(JSCreateLoweringTest, JSCreateWithContext) { |
| 176 | Node* const object = Parameter(Type::Receiver()); |
| 177 | Node* const closure = Parameter(Type::Function()); |
| 178 | Node* const context = Parameter(Type::Any()); |
| 179 | Node* const effect = graph()->start(); |
| 180 | Node* const control = graph()->start(); |
| 181 | Reduction r = |
| 182 | Reduce(graph()->NewNode(javascript()->CreateWithContext(), object, |
| 183 | closure, context, effect, control)); |
| 184 | ASSERT_TRUE(r.Changed()); |
| 185 | EXPECT_THAT(r.replacement(), |
| 186 | IsFinishRegion(IsAllocate(IsNumberConstant(Context::SizeFor( |
| 187 | Context::MIN_CONTEXT_SLOTS)), |
| 188 | IsBeginRegion(_), control), |
| 189 | _)); |
| 190 | } |
| 191 | |
| 192 | // ----------------------------------------------------------------------------- |
| 193 | // JSCreateCatchContext |
| 194 | |
| 195 | TEST_F(JSCreateLoweringTest, JSCreateCatchContext) { |
| 196 | Handle<String> name = factory()->length_string(); |
| 197 | Node* const exception = Parameter(Type::Receiver()); |
| 198 | Node* const closure = Parameter(Type::Function()); |
| 199 | Node* const context = Parameter(Type::Any()); |
| 200 | Node* const effect = graph()->start(); |
| 201 | Node* const control = graph()->start(); |
| 202 | Reduction r = |
| 203 | Reduce(graph()->NewNode(javascript()->CreateCatchContext(name), exception, |
| 204 | closure, context, effect, control)); |
| 205 | ASSERT_TRUE(r.Changed()); |
| 206 | EXPECT_THAT(r.replacement(), |
| 207 | IsFinishRegion(IsAllocate(IsNumberConstant(Context::SizeFor( |
| 208 | Context::MIN_CONTEXT_SLOTS + 1)), |
| 209 | IsBeginRegion(_), control), |
| 210 | _)); |
| 211 | } |
| 212 | |
| 213 | } // namespace compiler |
| 214 | } // namespace internal |
| 215 | } // namespace v8 |