Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 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 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/code-factory.h" |
| 6 | #include "src/compilation-dependencies.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7 | #include "src/compiler/access-builder.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 8 | #include "src/compiler/js-graph.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 9 | #include "src/compiler/js-typed-lowering.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 10 | #include "src/compiler/linkage.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 11 | #include "src/compiler/node-matchers.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 12 | #include "src/compiler/node-properties.h" |
| 13 | #include "src/compiler/operator-properties.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 14 | #include "src/type-cache.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 15 | #include "src/types.h" |
| 16 | |
| 17 | namespace v8 { |
| 18 | namespace internal { |
| 19 | namespace compiler { |
| 20 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 21 | // A helper class to simplify the process of reducing a single binop node with a |
| 22 | // JSOperator. This class manages the rewriting of context, control, and effect |
| 23 | // dependencies during lowering of a binop and contains numerous helper |
| 24 | // functions for matching the types of inputs to an operation. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 25 | class JSBinopReduction final { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 26 | public: |
| 27 | JSBinopReduction(JSTypedLowering* lowering, Node* node) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 28 | : lowering_(lowering), node_(node) {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 29 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 30 | BinaryOperationHints::Hint GetNumberBinaryOperationFeedback() { |
| 31 | if (!(lowering_->flags() & JSTypedLowering::kDeoptimizationEnabled) || |
| 32 | !(lowering_->flags() & JSTypedLowering::kTypeFeedbackEnabled)) { |
| 33 | return BinaryOperationHints::kAny; |
| 34 | } |
| 35 | DCHECK_NE(0, node_->op()->ControlOutputCount()); |
| 36 | DCHECK_EQ(1, node_->op()->EffectOutputCount()); |
| 37 | DCHECK_EQ(2, OperatorProperties::GetFrameStateInputCount(node_->op())); |
| 38 | BinaryOperationHints hints = BinaryOperationHintsOf(node_->op()); |
| 39 | BinaryOperationHints::Hint combined = hints.combined(); |
| 40 | if (combined == BinaryOperationHints::kSignedSmall || |
| 41 | combined == BinaryOperationHints::kSigned32 || |
| 42 | combined == BinaryOperationHints::kNumberOrUndefined) { |
| 43 | return combined; |
| 44 | } |
| 45 | return BinaryOperationHints::kAny; |
| 46 | } |
| 47 | |
| 48 | CompareOperationHints::Hint GetNumberCompareOperationFeedback() { |
| 49 | if (!(lowering_->flags() & JSTypedLowering::kDeoptimizationEnabled) || |
| 50 | !(lowering_->flags() & JSTypedLowering::kTypeFeedbackEnabled)) { |
| 51 | return CompareOperationHints::kAny; |
| 52 | } |
| 53 | DCHECK_NE(0, node_->op()->ControlOutputCount()); |
| 54 | DCHECK_EQ(1, node_->op()->EffectOutputCount()); |
| 55 | DCHECK_EQ(2, OperatorProperties::GetFrameStateInputCount(node_->op())); |
| 56 | CompareOperationHints hints = CompareOperationHintsOf(node_->op()); |
| 57 | CompareOperationHints::Hint combined = hints.combined(); |
| 58 | if (combined == CompareOperationHints::kSignedSmall || |
| 59 | combined == CompareOperationHints::kNumber) { |
| 60 | return combined; |
| 61 | } |
| 62 | return CompareOperationHints::kAny; |
| 63 | } |
| 64 | |
| 65 | void ConvertInputsToNumber(Node* frame_state) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 66 | // To convert the inputs to numbers, we have to provide frame states |
| 67 | // for lazy bailouts in the ToNumber conversions. |
| 68 | // We use a little hack here: we take the frame state before the binary |
| 69 | // operation and use it to construct the frame states for the conversion |
| 70 | // so that after the deoptimization, the binary operation IC gets |
| 71 | // already converted values from full code. This way we are sure that we |
| 72 | // will not re-do any of the side effects. |
| 73 | |
| 74 | Node* left_input = nullptr; |
| 75 | Node* right_input = nullptr; |
| 76 | bool left_is_primitive = left_type()->Is(Type::PlainPrimitive()); |
| 77 | bool right_is_primitive = right_type()->Is(Type::PlainPrimitive()); |
| 78 | bool handles_exception = NodeProperties::IsExceptionalCall(node_); |
| 79 | |
| 80 | if (!left_is_primitive && !right_is_primitive && handles_exception) { |
| 81 | ConvertBothInputsToNumber(&left_input, &right_input, frame_state); |
| 82 | } else { |
| 83 | left_input = left_is_primitive |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 84 | ? ConvertPlainPrimitiveToNumber(left()) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 85 | : ConvertSingleInputToNumber( |
| 86 | left(), CreateFrameStateForLeftInput(frame_state)); |
| 87 | right_input = right_is_primitive |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 88 | ? ConvertPlainPrimitiveToNumber(right()) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 89 | : ConvertSingleInputToNumber( |
| 90 | right(), CreateFrameStateForRightInput( |
| 91 | frame_state, left_input)); |
| 92 | } |
| 93 | |
| 94 | node_->ReplaceInput(0, left_input); |
| 95 | node_->ReplaceInput(1, right_input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 96 | } |
| 97 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 98 | void ConvertInputsToUI32(Signedness left_signedness, |
| 99 | Signedness right_signedness) { |
| 100 | node_->ReplaceInput(0, ConvertToUI32(left(), left_signedness)); |
| 101 | node_->ReplaceInput(1, ConvertToUI32(right(), right_signedness)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 102 | } |
| 103 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 104 | void SwapInputs() { |
| 105 | Node* l = left(); |
| 106 | Node* r = right(); |
| 107 | node_->ReplaceInput(0, r); |
| 108 | node_->ReplaceInput(1, l); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | // Remove all effect and control inputs and outputs to this node and change |
| 112 | // to the pure operator {op}, possibly inserting a boolean inversion. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 113 | Reduction ChangeToPureOperator(const Operator* op, bool invert = false, |
| 114 | Type* type = Type::Any()) { |
| 115 | DCHECK_EQ(0, op->EffectInputCount()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 116 | DCHECK_EQ(false, OperatorProperties::HasContextInput(op)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 117 | DCHECK_EQ(0, op->ControlInputCount()); |
| 118 | DCHECK_EQ(2, op->ValueInputCount()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 119 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | // Remove the effects from the node, and update its effect/control usages. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 121 | if (node_->op()->EffectInputCount() > 0) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 122 | lowering_->RelaxEffectsAndControls(node_); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 123 | } |
| 124 | // Remove the inputs corresponding to context, effect, and control. |
| 125 | NodeProperties::RemoveNonValueInputs(node_); |
| 126 | // Finally, update the operator to the new one. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 127 | NodeProperties::ChangeOp(node_, op); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 128 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 129 | // TODO(jarin): Replace the explicit typing hack with a call to some method |
| 130 | // that encapsulates changing the operator and re-typing. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 131 | Type* node_type = NodeProperties::GetType(node_); |
| 132 | NodeProperties::SetType(node_, Type::Intersect(node_type, type, zone())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 133 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 134 | if (invert) { |
| 135 | // Insert an boolean not to invert the value. |
| 136 | Node* value = graph()->NewNode(simplified()->BooleanNot(), node_); |
| 137 | node_->ReplaceUses(value); |
| 138 | // Note: ReplaceUses() smashes all uses, so smash it back here. |
| 139 | value->ReplaceInput(0, node_); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 140 | return lowering_->Replace(value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 141 | } |
| 142 | return lowering_->Changed(node_); |
| 143 | } |
| 144 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 145 | Reduction ChangeToSpeculativeOperator(const Operator* op, Type* upper_bound) { |
| 146 | DCHECK_EQ(1, op->EffectInputCount()); |
| 147 | DCHECK_EQ(1, op->EffectOutputCount()); |
| 148 | DCHECK_EQ(false, OperatorProperties::HasContextInput(op)); |
| 149 | DCHECK_EQ(1, op->ControlInputCount()); |
| 150 | DCHECK_EQ(0, op->ControlOutputCount()); |
| 151 | DCHECK_EQ(0, OperatorProperties::GetFrameStateInputCount(op)); |
| 152 | DCHECK_EQ(2, op->ValueInputCount()); |
| 153 | |
| 154 | DCHECK_EQ(1, node_->op()->EffectInputCount()); |
| 155 | DCHECK_EQ(1, node_->op()->EffectOutputCount()); |
| 156 | DCHECK_EQ(1, node_->op()->ControlInputCount()); |
| 157 | DCHECK_LT(1, node_->op()->ControlOutputCount()); |
| 158 | DCHECK_EQ(2, OperatorProperties::GetFrameStateInputCount(node_->op())); |
| 159 | DCHECK_EQ(2, node_->op()->ValueInputCount()); |
| 160 | |
| 161 | // Reconnect the control output to bypass the IfSuccess node and |
| 162 | // possibly disconnect from the IfException node. |
| 163 | for (Edge edge : node_->use_edges()) { |
| 164 | Node* const user = edge.from(); |
| 165 | DCHECK(!user->IsDead()); |
| 166 | if (NodeProperties::IsControlEdge(edge)) { |
| 167 | if (user->opcode() == IrOpcode::kIfSuccess) { |
| 168 | user->ReplaceUses(NodeProperties::GetControlInput(node_)); |
| 169 | user->Kill(); |
| 170 | } else { |
| 171 | DCHECK_EQ(user->opcode(), IrOpcode::kIfException); |
| 172 | edge.UpdateTo(jsgraph()->Dead()); |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | // Remove both bailout frame states and the context. |
| 178 | node_->RemoveInput(NodeProperties::FirstFrameStateIndex(node_) + 1); |
| 179 | node_->RemoveInput(NodeProperties::FirstFrameStateIndex(node_)); |
| 180 | node_->RemoveInput(NodeProperties::FirstContextIndex(node_)); |
| 181 | |
| 182 | NodeProperties::ChangeOp(node_, op); |
| 183 | |
| 184 | // Update the type to number. |
| 185 | Type* node_type = NodeProperties::GetType(node_); |
| 186 | NodeProperties::SetType(node_, |
| 187 | Type::Intersect(node_type, upper_bound, zone())); |
| 188 | |
| 189 | return lowering_->Changed(node_); |
| 190 | } |
| 191 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 192 | Reduction ChangeToPureOperator(const Operator* op, Type* type) { |
| 193 | return ChangeToPureOperator(op, false, type); |
| 194 | } |
| 195 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 196 | bool LeftInputIs(Type* t) { return left_type()->Is(t); } |
| 197 | |
| 198 | bool RightInputIs(Type* t) { return right_type()->Is(t); } |
| 199 | |
| 200 | bool OneInputIs(Type* t) { return LeftInputIs(t) || RightInputIs(t); } |
| 201 | |
| 202 | bool BothInputsAre(Type* t) { return LeftInputIs(t) && RightInputIs(t); } |
| 203 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 204 | bool OneInputCannotBe(Type* t) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 205 | return !left_type()->Maybe(t) || !right_type()->Maybe(t); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 206 | } |
| 207 | |
| 208 | bool NeitherInputCanBe(Type* t) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 209 | return !left_type()->Maybe(t) && !right_type()->Maybe(t); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | Node* effect() { return NodeProperties::GetEffectInput(node_); } |
| 213 | Node* control() { return NodeProperties::GetControlInput(node_); } |
| 214 | Node* context() { return NodeProperties::GetContextInput(node_); } |
| 215 | Node* left() { return NodeProperties::GetValueInput(node_, 0); } |
| 216 | Node* right() { return NodeProperties::GetValueInput(node_, 1); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 217 | Type* left_type() { return NodeProperties::GetType(node_->InputAt(0)); } |
| 218 | Type* right_type() { return NodeProperties::GetType(node_->InputAt(1)); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 219 | |
| 220 | SimplifiedOperatorBuilder* simplified() { return lowering_->simplified(); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 221 | Graph* graph() const { return lowering_->graph(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 222 | JSGraph* jsgraph() { return lowering_->jsgraph(); } |
| 223 | JSOperatorBuilder* javascript() { return lowering_->javascript(); } |
| 224 | MachineOperatorBuilder* machine() { return lowering_->machine(); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 225 | CommonOperatorBuilder* common() { return jsgraph()->common(); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 226 | Zone* zone() const { return graph()->zone(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 227 | |
| 228 | private: |
| 229 | JSTypedLowering* lowering_; // The containing lowering instance. |
| 230 | Node* node_; // The original node. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 231 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 232 | Node* CreateFrameStateForLeftInput(Node* frame_state) { |
| 233 | FrameStateInfo state_info = OpParameter<FrameStateInfo>(frame_state); |
| 234 | |
| 235 | if (state_info.bailout_id() == BailoutId::None()) { |
| 236 | // Dummy frame state => just leave it as is. |
| 237 | return frame_state; |
| 238 | } |
| 239 | |
| 240 | // If the frame state is already the right one, just return it. |
| 241 | if (state_info.state_combine().kind() == OutputFrameStateCombine::kPokeAt && |
| 242 | state_info.state_combine().GetOffsetToPokeAt() == 1) { |
| 243 | return frame_state; |
| 244 | } |
| 245 | |
| 246 | // Here, we smash the result of the conversion into the slot just below |
| 247 | // the stack top. This is the slot that full code uses to store the |
| 248 | // left operand. |
| 249 | const Operator* op = jsgraph()->common()->FrameState( |
| 250 | state_info.bailout_id(), OutputFrameStateCombine::PokeAt(1), |
| 251 | state_info.function_info()); |
| 252 | |
| 253 | return graph()->NewNode(op, |
| 254 | frame_state->InputAt(kFrameStateParametersInput), |
| 255 | frame_state->InputAt(kFrameStateLocalsInput), |
| 256 | frame_state->InputAt(kFrameStateStackInput), |
| 257 | frame_state->InputAt(kFrameStateContextInput), |
| 258 | frame_state->InputAt(kFrameStateFunctionInput), |
| 259 | frame_state->InputAt(kFrameStateOuterStateInput)); |
| 260 | } |
| 261 | |
| 262 | Node* CreateFrameStateForRightInput(Node* frame_state, Node* converted_left) { |
| 263 | FrameStateInfo state_info = OpParameter<FrameStateInfo>(frame_state); |
| 264 | |
| 265 | if (state_info.bailout_id() == BailoutId::None()) { |
| 266 | // Dummy frame state => just leave it as is. |
| 267 | return frame_state; |
| 268 | } |
| 269 | |
| 270 | // Create a frame state that stores the result of the operation to the |
| 271 | // top of the stack (i.e., the slot used for the right operand). |
| 272 | const Operator* op = jsgraph()->common()->FrameState( |
| 273 | state_info.bailout_id(), OutputFrameStateCombine::PokeAt(0), |
| 274 | state_info.function_info()); |
| 275 | |
| 276 | // Change the left operand {converted_left} on the expression stack. |
| 277 | Node* stack = frame_state->InputAt(2); |
| 278 | DCHECK_EQ(stack->opcode(), IrOpcode::kStateValues); |
| 279 | DCHECK_GE(stack->InputCount(), 2); |
| 280 | |
| 281 | // TODO(jarin) Allocate in a local zone or a reusable buffer. |
| 282 | NodeVector new_values(stack->InputCount(), zone()); |
| 283 | for (int i = 0; i < stack->InputCount(); i++) { |
| 284 | if (i == stack->InputCount() - 2) { |
| 285 | new_values[i] = converted_left; |
| 286 | } else { |
| 287 | new_values[i] = stack->InputAt(i); |
| 288 | } |
| 289 | } |
| 290 | Node* new_stack = |
| 291 | graph()->NewNode(stack->op(), stack->InputCount(), &new_values.front()); |
| 292 | |
| 293 | return graph()->NewNode( |
| 294 | op, frame_state->InputAt(kFrameStateParametersInput), |
| 295 | frame_state->InputAt(kFrameStateLocalsInput), new_stack, |
| 296 | frame_state->InputAt(kFrameStateContextInput), |
| 297 | frame_state->InputAt(kFrameStateFunctionInput), |
| 298 | frame_state->InputAt(kFrameStateOuterStateInput)); |
| 299 | } |
| 300 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 301 | Node* ConvertPlainPrimitiveToNumber(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 302 | DCHECK(NodeProperties::GetType(node)->Is(Type::PlainPrimitive())); |
| 303 | // Avoid inserting too many eager ToNumber() operations. |
| 304 | Reduction const reduction = lowering_->ReduceJSToNumberInput(node); |
| 305 | if (reduction.Changed()) return reduction.replacement(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 306 | if (NodeProperties::GetType(node)->Is(Type::Number())) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 307 | return node; |
| 308 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 309 | return graph()->NewNode(simplified()->PlainPrimitiveToNumber(), node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | Node* ConvertSingleInputToNumber(Node* node, Node* frame_state) { |
| 313 | DCHECK(!NodeProperties::GetType(node)->Is(Type::PlainPrimitive())); |
| 314 | Node* const n = graph()->NewNode(javascript()->ToNumber(), node, context(), |
| 315 | frame_state, effect(), control()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 316 | Node* const if_success = graph()->NewNode(common()->IfSuccess(), n); |
| 317 | NodeProperties::ReplaceControlInput(node_, if_success); |
| 318 | NodeProperties::ReplaceUses(node_, node_, node_, node_, n); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 319 | update_effect(n); |
| 320 | return n; |
| 321 | } |
| 322 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 323 | void ConvertBothInputsToNumber(Node** left_result, Node** right_result, |
| 324 | Node* frame_state) { |
| 325 | Node* projections[2]; |
| 326 | |
| 327 | // Find {IfSuccess} and {IfException} continuations of the operation. |
| 328 | NodeProperties::CollectControlProjections(node_, projections, 2); |
| 329 | IfExceptionHint hint = OpParameter<IfExceptionHint>(projections[1]); |
| 330 | Node* if_exception = projections[1]; |
| 331 | Node* if_success = projections[0]; |
| 332 | |
| 333 | // Insert two ToNumber() operations that both potentially throw. |
| 334 | Node* left_state = CreateFrameStateForLeftInput(frame_state); |
| 335 | Node* left_conv = |
| 336 | graph()->NewNode(javascript()->ToNumber(), left(), context(), |
| 337 | left_state, effect(), control()); |
| 338 | Node* left_success = graph()->NewNode(common()->IfSuccess(), left_conv); |
| 339 | Node* right_state = CreateFrameStateForRightInput(frame_state, left_conv); |
| 340 | Node* right_conv = |
| 341 | graph()->NewNode(javascript()->ToNumber(), right(), context(), |
| 342 | right_state, left_conv, left_success); |
| 343 | Node* left_exception = |
| 344 | graph()->NewNode(common()->IfException(hint), left_conv, left_conv); |
| 345 | Node* right_exception = |
| 346 | graph()->NewNode(common()->IfException(hint), right_conv, right_conv); |
| 347 | NodeProperties::ReplaceControlInput(if_success, right_conv); |
| 348 | update_effect(right_conv); |
| 349 | |
| 350 | // Wire conversions to existing {IfException} continuation. |
| 351 | Node* exception_merge = if_exception; |
| 352 | Node* exception_value = |
| 353 | graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2), |
| 354 | left_exception, right_exception, exception_merge); |
| 355 | Node* exception_effect = |
| 356 | graph()->NewNode(common()->EffectPhi(2), left_exception, |
| 357 | right_exception, exception_merge); |
| 358 | for (Edge edge : exception_merge->use_edges()) { |
| 359 | if (NodeProperties::IsEffectEdge(edge)) edge.UpdateTo(exception_effect); |
| 360 | if (NodeProperties::IsValueEdge(edge)) edge.UpdateTo(exception_value); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 361 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 362 | NodeProperties::RemoveType(exception_merge); |
| 363 | exception_merge->ReplaceInput(0, left_exception); |
| 364 | exception_merge->ReplaceInput(1, right_exception); |
| 365 | NodeProperties::ChangeOp(exception_merge, common()->Merge(2)); |
| 366 | |
| 367 | *left_result = left_conv; |
| 368 | *right_result = right_conv; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 369 | } |
| 370 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 371 | Node* ConvertToUI32(Node* node, Signedness signedness) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 372 | // Avoid introducing too many eager NumberToXXnt32() operations. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 373 | Type* type = NodeProperties::GetType(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 374 | if (signedness == kSigned) { |
| 375 | if (!type->Is(Type::Signed32())) { |
| 376 | node = graph()->NewNode(simplified()->NumberToInt32(), node); |
| 377 | } |
| 378 | } else { |
| 379 | DCHECK_EQ(kUnsigned, signedness); |
| 380 | if (!type->Is(Type::Unsigned32())) { |
| 381 | node = graph()->NewNode(simplified()->NumberToUint32(), node); |
| 382 | } |
| 383 | } |
| 384 | return node; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 385 | } |
| 386 | |
| 387 | void update_effect(Node* effect) { |
| 388 | NodeProperties::ReplaceEffectInput(node_, effect); |
| 389 | } |
| 390 | }; |
| 391 | |
| 392 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 393 | // TODO(turbofan): js-typed-lowering improvements possible |
| 394 | // - immediately put in type bounds for all new nodes |
| 395 | // - relax effects from generic but not-side-effecting operations |
| 396 | |
| 397 | |
| 398 | JSTypedLowering::JSTypedLowering(Editor* editor, |
| 399 | CompilationDependencies* dependencies, |
| 400 | Flags flags, JSGraph* jsgraph, Zone* zone) |
| 401 | : AdvancedReducer(editor), |
| 402 | dependencies_(dependencies), |
| 403 | flags_(flags), |
| 404 | jsgraph_(jsgraph), |
| 405 | true_type_(Type::Constant(factory()->true_value(), graph()->zone())), |
| 406 | false_type_(Type::Constant(factory()->false_value(), graph()->zone())), |
| 407 | the_hole_type_( |
| 408 | Type::Constant(factory()->the_hole_value(), graph()->zone())), |
| 409 | type_cache_(TypeCache::Get()) { |
| 410 | for (size_t k = 0; k < arraysize(shifted_int32_ranges_); ++k) { |
| 411 | double min = kMinInt / (1 << k); |
| 412 | double max = kMaxInt / (1 << k); |
| 413 | shifted_int32_ranges_[k] = Type::Range(min, max, graph()->zone()); |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 418 | Reduction JSTypedLowering::ReduceJSAdd(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 419 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 420 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 421 | JSBinopReduction r(this, node); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 422 | |
| 423 | BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback(); |
| 424 | if (feedback == BinaryOperationHints::kNumberOrUndefined && |
| 425 | r.BothInputsAre(Type::PlainPrimitive()) && |
| 426 | r.NeitherInputCanBe(Type::StringOrReceiver())) { |
| 427 | // JSAdd(x:-string, y:-string) => NumberAdd(ToNumber(x), ToNumber(y)) |
| 428 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
| 429 | r.ConvertInputsToNumber(frame_state); |
| 430 | return r.ChangeToPureOperator(simplified()->NumberAdd(), Type::Number()); |
| 431 | } |
| 432 | if (feedback != BinaryOperationHints::kAny) { |
| 433 | // Lower to the optimistic number binop. |
| 434 | return r.ChangeToSpeculativeOperator( |
| 435 | simplified()->SpeculativeNumberAdd(feedback), Type::Number()); |
| 436 | } |
| 437 | if (r.BothInputsAre(Type::Number())) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 438 | // JSAdd(x:number, y:number) => NumberAdd(x, y) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 439 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
| 440 | r.ConvertInputsToNumber(frame_state); |
| 441 | return r.ChangeToPureOperator(simplified()->NumberAdd(), Type::Number()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 442 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 443 | if (r.NeitherInputCanBe(Type::StringOrReceiver())) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 444 | // JSAdd(x:-string, y:-string) => NumberAdd(ToNumber(x), ToNumber(y)) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 445 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 446 | r.ConvertInputsToNumber(frame_state); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 447 | return r.ChangeToPureOperator(simplified()->NumberAdd(), Type::Number()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 448 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 449 | if (r.OneInputIs(Type::String())) { |
| 450 | StringAddFlags flags = STRING_ADD_CHECK_NONE; |
| 451 | if (!r.LeftInputIs(Type::String())) { |
| 452 | flags = STRING_ADD_CONVERT_LEFT; |
| 453 | } else if (!r.RightInputIs(Type::String())) { |
| 454 | flags = STRING_ADD_CONVERT_RIGHT; |
| 455 | } |
| 456 | // JSAdd(x:string, y) => CallStub[StringAdd](x, y) |
| 457 | // JSAdd(x, y:string) => CallStub[StringAdd](x, y) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 458 | Callable const callable = |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 459 | CodeFactory::StringAdd(isolate(), flags, NOT_TENURED); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 460 | CallDescriptor const* const desc = Linkage::GetStubCallDescriptor( |
| 461 | isolate(), graph()->zone(), callable.descriptor(), 0, |
| 462 | CallDescriptor::kNeedsFrameState, node->op()->properties()); |
| 463 | DCHECK_EQ(2, OperatorProperties::GetFrameStateInputCount(node->op())); |
| 464 | node->RemoveInput(NodeProperties::FirstFrameStateIndex(node) + 1); |
| 465 | node->InsertInput(graph()->zone(), 0, |
| 466 | jsgraph()->HeapConstant(callable.code())); |
| 467 | NodeProperties::ChangeOp(node, common()->Call(desc)); |
| 468 | return Changed(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 469 | } |
| 470 | return NoChange(); |
| 471 | } |
| 472 | |
| 473 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 474 | Reduction JSTypedLowering::ReduceJSModulus(Node* node) { |
| 475 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 476 | JSBinopReduction r(this, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 477 | if (r.BothInputsAre(Type::Number())) { |
| 478 | // JSModulus(x:number, x:number) => NumberModulus(x, y) |
| 479 | return r.ChangeToPureOperator(simplified()->NumberModulus(), |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 480 | Type::Number()); |
| 481 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 482 | BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback(); |
| 483 | if (feedback != BinaryOperationHints::kAny) { |
| 484 | return r.ChangeToSpeculativeOperator( |
| 485 | simplified()->SpeculativeNumberModulus(feedback), Type::Number()); |
| 486 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 487 | return NoChange(); |
| 488 | } |
| 489 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 490 | Reduction JSTypedLowering::ReduceJSSubtract(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 491 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 492 | JSBinopReduction r(this, node); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 493 | BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback(); |
| 494 | if (feedback == BinaryOperationHints::kNumberOrUndefined && |
| 495 | r.BothInputsAre(Type::PlainPrimitive())) { |
| 496 | // JSSubtract(x:plain-primitive, y:plain-primitive) |
| 497 | // => NumberSubtract(ToNumber(x), ToNumber(y)) |
| 498 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
| 499 | r.ConvertInputsToNumber(frame_state); |
| 500 | return r.ChangeToPureOperator(simplified()->NumberSubtract(), |
| 501 | Type::Number()); |
| 502 | } |
| 503 | if (feedback != BinaryOperationHints::kAny) { |
| 504 | // Lower to the optimistic number binop. |
| 505 | return r.ChangeToSpeculativeOperator( |
| 506 | simplified()->SpeculativeNumberSubtract(feedback), Type::Number()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 507 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 508 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 509 | r.ConvertInputsToNumber(frame_state); |
| 510 | return r.ChangeToPureOperator(simplified()->NumberSubtract(), Type::Number()); |
| 511 | } |
| 512 | |
| 513 | Reduction JSTypedLowering::ReduceJSMultiply(Node* node) { |
| 514 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 515 | JSBinopReduction r(this, node); |
| 516 | |
| 517 | BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback(); |
| 518 | if (feedback != BinaryOperationHints::kAny) { |
| 519 | return r.ChangeToSpeculativeOperator( |
| 520 | simplified()->SpeculativeNumberMultiply(feedback), Type::Number()); |
| 521 | } |
| 522 | |
| 523 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
| 524 | r.ConvertInputsToNumber(frame_state); |
| 525 | return r.ChangeToPureOperator(simplified()->NumberMultiply(), Type::Number()); |
| 526 | } |
| 527 | |
| 528 | Reduction JSTypedLowering::ReduceJSDivide(Node* node) { |
| 529 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 530 | JSBinopReduction r(this, node); |
| 531 | BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback(); |
| 532 | if (feedback != BinaryOperationHints::kAny) { |
| 533 | return r.ChangeToSpeculativeOperator( |
| 534 | simplified()->SpeculativeNumberDivide(feedback), Type::Number()); |
| 535 | } |
| 536 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
| 537 | r.ConvertInputsToNumber(frame_state); |
| 538 | return r.ChangeToPureOperator(simplified()->NumberDivide(), Type::Number()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 539 | } |
| 540 | |
| 541 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 542 | Reduction JSTypedLowering::ReduceInt32Binop(Node* node, const Operator* intOp) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 543 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 544 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 545 | JSBinopReduction r(this, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 546 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 547 | r.ConvertInputsToNumber(frame_state); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 548 | r.ConvertInputsToUI32(kSigned, kSigned); |
| 549 | return r.ChangeToPureOperator(intOp, Type::Integral32()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 553 | Reduction JSTypedLowering::ReduceUI32Shift(Node* node, |
| 554 | Signedness left_signedness, |
| 555 | const Operator* shift_op) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 556 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 557 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 558 | JSBinopReduction r(this, node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 559 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 560 | r.ConvertInputsToNumber(frame_state); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 561 | r.ConvertInputsToUI32(left_signedness, kUnsigned); |
| 562 | return r.ChangeToPureOperator(shift_op); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 563 | } |
| 564 | |
| 565 | |
| 566 | Reduction JSTypedLowering::ReduceJSComparison(Node* node) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 567 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 568 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 569 | JSBinopReduction r(this, node); |
| 570 | if (r.BothInputsAre(Type::String())) { |
| 571 | // If both inputs are definitely strings, perform a string comparison. |
| 572 | const Operator* stringOp; |
| 573 | switch (node->opcode()) { |
| 574 | case IrOpcode::kJSLessThan: |
| 575 | stringOp = simplified()->StringLessThan(); |
| 576 | break; |
| 577 | case IrOpcode::kJSGreaterThan: |
| 578 | stringOp = simplified()->StringLessThan(); |
| 579 | r.SwapInputs(); // a > b => b < a |
| 580 | break; |
| 581 | case IrOpcode::kJSLessThanOrEqual: |
| 582 | stringOp = simplified()->StringLessThanOrEqual(); |
| 583 | break; |
| 584 | case IrOpcode::kJSGreaterThanOrEqual: |
| 585 | stringOp = simplified()->StringLessThanOrEqual(); |
| 586 | r.SwapInputs(); // a >= b => b <= a |
| 587 | break; |
| 588 | default: |
| 589 | return NoChange(); |
| 590 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 591 | r.ChangeToPureOperator(stringOp); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 592 | return Changed(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 593 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 594 | |
| 595 | CompareOperationHints::Hint hint = r.GetNumberCompareOperationFeedback(); |
| 596 | if (hint != CompareOperationHints::kAny || |
| 597 | r.OneInputCannotBe(Type::StringOrReceiver())) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 598 | const Operator* less_than; |
| 599 | const Operator* less_than_or_equal; |
| 600 | if (r.BothInputsAre(Type::Unsigned32())) { |
| 601 | less_than = machine()->Uint32LessThan(); |
| 602 | less_than_or_equal = machine()->Uint32LessThanOrEqual(); |
| 603 | } else if (r.BothInputsAre(Type::Signed32())) { |
| 604 | less_than = machine()->Int32LessThan(); |
| 605 | less_than_or_equal = machine()->Int32LessThanOrEqual(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 606 | } else if (hint != CompareOperationHints::kAny) { |
| 607 | less_than = simplified()->SpeculativeNumberLessThan(hint); |
| 608 | less_than_or_equal = simplified()->SpeculativeNumberLessThanOrEqual(hint); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 609 | } else { |
| 610 | // TODO(turbofan): mixed signed/unsigned int32 comparisons. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 611 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 612 | r.ConvertInputsToNumber(frame_state); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 613 | less_than = simplified()->NumberLessThan(); |
| 614 | less_than_or_equal = simplified()->NumberLessThanOrEqual(); |
| 615 | } |
| 616 | const Operator* comparison; |
| 617 | switch (node->opcode()) { |
| 618 | case IrOpcode::kJSLessThan: |
| 619 | comparison = less_than; |
| 620 | break; |
| 621 | case IrOpcode::kJSGreaterThan: |
| 622 | comparison = less_than; |
| 623 | r.SwapInputs(); // a > b => b < a |
| 624 | break; |
| 625 | case IrOpcode::kJSLessThanOrEqual: |
| 626 | comparison = less_than_or_equal; |
| 627 | break; |
| 628 | case IrOpcode::kJSGreaterThanOrEqual: |
| 629 | comparison = less_than_or_equal; |
| 630 | r.SwapInputs(); // a >= b => b <= a |
| 631 | break; |
| 632 | default: |
| 633 | return NoChange(); |
| 634 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 635 | if (comparison->EffectInputCount() > 0) { |
| 636 | return r.ChangeToSpeculativeOperator(comparison, Type::Boolean()); |
| 637 | } else { |
| 638 | return r.ChangeToPureOperator(comparison); |
| 639 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 640 | } |
| 641 | // TODO(turbofan): relax/remove effects of this operator in other cases. |
| 642 | return NoChange(); // Keep a generic comparison. |
| 643 | } |
| 644 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 645 | Reduction JSTypedLowering::ReduceJSEqualTypeOf(Node* node, bool invert) { |
| 646 | HeapObjectBinopMatcher m(node); |
| 647 | if (m.left().IsJSTypeOf() && m.right().HasValue() && |
| 648 | m.right().Value()->IsString()) { |
| 649 | Node* replacement; |
| 650 | Node* input = m.left().InputAt(0); |
| 651 | Handle<String> value = Handle<String>::cast(m.right().Value()); |
| 652 | if (String::Equals(value, factory()->boolean_string())) { |
| 653 | replacement = graph()->NewNode( |
| 654 | common()->Select(MachineRepresentation::kTagged), |
| 655 | graph()->NewNode(simplified()->ReferenceEqual(Type::Any()), input, |
| 656 | jsgraph()->TrueConstant()), |
| 657 | jsgraph()->TrueConstant(), |
| 658 | graph()->NewNode(simplified()->ReferenceEqual(Type::Any()), input, |
| 659 | jsgraph()->FalseConstant())); |
| 660 | } else if (String::Equals(value, factory()->function_string())) { |
| 661 | replacement = graph()->NewNode(simplified()->ObjectIsCallable(), input); |
| 662 | } else if (String::Equals(value, factory()->number_string())) { |
| 663 | replacement = graph()->NewNode(simplified()->ObjectIsNumber(), input); |
| 664 | } else if (String::Equals(value, factory()->string_string())) { |
| 665 | replacement = graph()->NewNode(simplified()->ObjectIsString(), input); |
| 666 | } else if (String::Equals(value, factory()->undefined_string())) { |
| 667 | replacement = graph()->NewNode( |
| 668 | common()->Select(MachineRepresentation::kTagged), |
| 669 | graph()->NewNode(simplified()->ReferenceEqual(Type::Any()), input, |
| 670 | jsgraph()->NullConstant()), |
| 671 | jsgraph()->FalseConstant(), |
| 672 | graph()->NewNode(simplified()->ObjectIsUndetectable(), input)); |
| 673 | } else { |
| 674 | return NoChange(); |
| 675 | } |
| 676 | if (invert) { |
| 677 | replacement = graph()->NewNode(simplified()->BooleanNot(), replacement); |
| 678 | } |
| 679 | return Replace(replacement); |
| 680 | } |
| 681 | return NoChange(); |
| 682 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 683 | |
| 684 | Reduction JSTypedLowering::ReduceJSEqual(Node* node, bool invert) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 685 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 686 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 687 | Reduction const reduction = ReduceJSEqualTypeOf(node, invert); |
| 688 | if (reduction.Changed()) { |
| 689 | ReplaceWithValue(node, reduction.replacement()); |
| 690 | return reduction; |
| 691 | } |
| 692 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 693 | JSBinopReduction r(this, node); |
| 694 | |
| 695 | if (r.BothInputsAre(Type::Number())) { |
| 696 | return r.ChangeToPureOperator(simplified()->NumberEqual(), invert); |
| 697 | } |
| 698 | if (r.BothInputsAre(Type::String())) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 699 | return r.ChangeToPureOperator(simplified()->StringEqual(), invert); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 700 | } |
| 701 | if (r.BothInputsAre(Type::Boolean())) { |
| 702 | return r.ChangeToPureOperator(simplified()->ReferenceEqual(Type::Boolean()), |
| 703 | invert); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 704 | } |
| 705 | if (r.BothInputsAre(Type::Receiver())) { |
| 706 | return r.ChangeToPureOperator( |
| 707 | simplified()->ReferenceEqual(Type::Receiver()), invert); |
| 708 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 709 | if (r.OneInputIs(Type::Undetectable())) { |
| 710 | RelaxEffectsAndControls(node); |
| 711 | node->RemoveInput(r.LeftInputIs(Type::Undetectable()) ? 0 : 1); |
| 712 | node->TrimInputCount(1); |
| 713 | NodeProperties::ChangeOp(node, simplified()->ObjectIsUndetectable()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 714 | if (invert) { |
| 715 | // Insert an boolean not to invert the value. |
| 716 | Node* value = graph()->NewNode(simplified()->BooleanNot(), node); |
| 717 | node->ReplaceUses(value); |
| 718 | // Note: ReplaceUses() smashes all uses, so smash it back here. |
| 719 | value->ReplaceInput(0, node); |
| 720 | return Replace(value); |
| 721 | } |
| 722 | return Changed(node); |
| 723 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 724 | return NoChange(); |
| 725 | } |
| 726 | |
| 727 | |
| 728 | Reduction JSTypedLowering::ReduceJSStrictEqual(Node* node, bool invert) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 729 | if (flags() & kDisableBinaryOpReduction) return NoChange(); |
| 730 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 731 | JSBinopReduction r(this, node); |
| 732 | if (r.left() == r.right()) { |
| 733 | // x === x is always true if x != NaN |
| 734 | if (!r.left_type()->Maybe(Type::NaN())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 735 | Node* replacement = jsgraph()->BooleanConstant(!invert); |
| 736 | ReplaceWithValue(node, replacement); |
| 737 | return Replace(replacement); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 738 | } |
| 739 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 740 | if (r.OneInputCannotBe(Type::NumberOrSimdOrString())) { |
| 741 | // For values with canonical representation (i.e. neither String, nor |
| 742 | // Simd128Value nor Number) an empty type intersection means the values |
| 743 | // cannot be strictly equal. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 744 | if (!r.left_type()->Maybe(r.right_type())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 745 | Node* replacement = jsgraph()->BooleanConstant(invert); |
| 746 | ReplaceWithValue(node, replacement); |
| 747 | return Replace(replacement); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 748 | } |
| 749 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 750 | Reduction const reduction = ReduceJSEqualTypeOf(node, invert); |
| 751 | if (reduction.Changed()) { |
| 752 | return reduction; |
| 753 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 754 | if (r.OneInputIs(the_hole_type_)) { |
| 755 | return r.ChangeToPureOperator(simplified()->ReferenceEqual(the_hole_type_), |
| 756 | invert); |
| 757 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 758 | if (r.OneInputIs(Type::Undefined())) { |
| 759 | return r.ChangeToPureOperator( |
| 760 | simplified()->ReferenceEqual(Type::Undefined()), invert); |
| 761 | } |
| 762 | if (r.OneInputIs(Type::Null())) { |
| 763 | return r.ChangeToPureOperator(simplified()->ReferenceEqual(Type::Null()), |
| 764 | invert); |
| 765 | } |
| 766 | if (r.OneInputIs(Type::Boolean())) { |
| 767 | return r.ChangeToPureOperator(simplified()->ReferenceEqual(Type::Boolean()), |
| 768 | invert); |
| 769 | } |
| 770 | if (r.OneInputIs(Type::Object())) { |
| 771 | return r.ChangeToPureOperator(simplified()->ReferenceEqual(Type::Object()), |
| 772 | invert); |
| 773 | } |
| 774 | if (r.OneInputIs(Type::Receiver())) { |
| 775 | return r.ChangeToPureOperator( |
| 776 | simplified()->ReferenceEqual(Type::Receiver()), invert); |
| 777 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 778 | if (r.BothInputsAre(Type::Unique())) { |
| 779 | return r.ChangeToPureOperator(simplified()->ReferenceEqual(Type::Unique()), |
| 780 | invert); |
| 781 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 782 | if (r.BothInputsAre(Type::String())) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 783 | return r.ChangeToPureOperator(simplified()->StringEqual(), invert); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 784 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 785 | if (r.BothInputsAre(Type::Number())) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 786 | return r.ChangeToPureOperator(simplified()->NumberEqual(), invert); |
| 787 | } |
| 788 | // TODO(turbofan): js-typed-lowering of StrictEqual(mixed types) |
| 789 | return NoChange(); |
| 790 | } |
| 791 | |
| 792 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 793 | Reduction JSTypedLowering::ReduceJSToBoolean(Node* node) { |
| 794 | Node* const input = node->InputAt(0); |
| 795 | Type* const input_type = NodeProperties::GetType(input); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 796 | if (input_type->Is(Type::Boolean())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 797 | // JSToBoolean(x:boolean) => x |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 798 | return Replace(input); |
| 799 | } else if (input_type->Is(Type::OrderedNumber())) { |
| 800 | // JSToBoolean(x:ordered-number) => BooleanNot(NumberEqual(x,#0)) |
| 801 | RelaxEffectsAndControls(node); |
| 802 | node->ReplaceInput(0, graph()->NewNode(simplified()->NumberEqual(), input, |
| 803 | jsgraph()->ZeroConstant())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 804 | node->TrimInputCount(1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 805 | NodeProperties::ChangeOp(node, simplified()->BooleanNot()); |
| 806 | return Changed(node); |
| 807 | } else if (input_type->Is(Type::String())) { |
| 808 | // JSToBoolean(x:string) => NumberLessThan(#0,x.length) |
| 809 | FieldAccess const access = AccessBuilder::ForStringLength(); |
| 810 | Node* length = graph()->NewNode(simplified()->LoadField(access), input, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 811 | graph()->start(), graph()->start()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 812 | ReplaceWithValue(node, node, length); |
| 813 | node->ReplaceInput(0, jsgraph()->ZeroConstant()); |
| 814 | node->ReplaceInput(1, length); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 815 | NodeProperties::ChangeOp(node, simplified()->NumberLessThan()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 816 | return Changed(node); |
| 817 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 818 | return NoChange(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 819 | } |
| 820 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 821 | Reduction JSTypedLowering::ReduceJSToInteger(Node* node) { |
| 822 | Node* const input = NodeProperties::GetValueInput(node, 0); |
| 823 | Type* const input_type = NodeProperties::GetType(input); |
| 824 | if (input_type->Is(type_cache_.kIntegerOrMinusZero)) { |
| 825 | // JSToInteger(x:integer) => x |
| 826 | ReplaceWithValue(node, input); |
| 827 | return Replace(input); |
| 828 | } |
| 829 | return NoChange(); |
| 830 | } |
| 831 | |
| 832 | Reduction JSTypedLowering::ReduceJSToLength(Node* node) { |
| 833 | Node* input = NodeProperties::GetValueInput(node, 0); |
| 834 | Type* input_type = NodeProperties::GetType(input); |
| 835 | if (input_type->Is(type_cache_.kIntegerOrMinusZero)) { |
| 836 | if (input_type->Max() <= 0.0) { |
| 837 | input = jsgraph()->ZeroConstant(); |
| 838 | } else if (input_type->Min() >= kMaxSafeInteger) { |
| 839 | input = jsgraph()->Constant(kMaxSafeInteger); |
| 840 | } else { |
| 841 | if (input_type->Min() <= 0.0) { |
| 842 | input = graph()->NewNode( |
| 843 | common()->Select(MachineRepresentation::kTagged), |
| 844 | graph()->NewNode(simplified()->NumberLessThanOrEqual(), input, |
| 845 | jsgraph()->ZeroConstant()), |
| 846 | jsgraph()->ZeroConstant(), input); |
| 847 | input_type = Type::Range(0.0, input_type->Max(), graph()->zone()); |
| 848 | NodeProperties::SetType(input, input_type); |
| 849 | } |
| 850 | if (input_type->Max() > kMaxSafeInteger) { |
| 851 | input = graph()->NewNode( |
| 852 | common()->Select(MachineRepresentation::kTagged), |
| 853 | graph()->NewNode(simplified()->NumberLessThanOrEqual(), |
| 854 | jsgraph()->Constant(kMaxSafeInteger), input), |
| 855 | jsgraph()->Constant(kMaxSafeInteger), input); |
| 856 | input_type = |
| 857 | Type::Range(input_type->Min(), kMaxSafeInteger, graph()->zone()); |
| 858 | NodeProperties::SetType(input, input_type); |
| 859 | } |
| 860 | } |
| 861 | ReplaceWithValue(node, input); |
| 862 | return Replace(input); |
| 863 | } |
| 864 | return NoChange(); |
| 865 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 866 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 867 | Reduction JSTypedLowering::ReduceJSToNumberInput(Node* input) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 868 | // Try constant-folding of JSToNumber with constant inputs. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 869 | Type* input_type = NodeProperties::GetType(input); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 870 | if (input_type->IsConstant()) { |
| 871 | Handle<Object> input_value = input_type->AsConstant()->Value(); |
| 872 | if (input_value->IsString()) { |
| 873 | return Replace(jsgraph()->Constant( |
| 874 | String::ToNumber(Handle<String>::cast(input_value)))); |
| 875 | } else if (input_value->IsOddball()) { |
| 876 | return Replace(jsgraph()->Constant( |
| 877 | Oddball::ToNumber(Handle<Oddball>::cast(input_value)))); |
| 878 | } |
| 879 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 880 | if (input_type->Is(Type::Number())) { |
| 881 | // JSToNumber(x:number) => x |
| 882 | return Changed(input); |
| 883 | } |
| 884 | if (input_type->Is(Type::Undefined())) { |
| 885 | // JSToNumber(undefined) => #NaN |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 886 | return Replace(jsgraph()->NaNConstant()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 887 | } |
| 888 | if (input_type->Is(Type::Null())) { |
| 889 | // JSToNumber(null) => #0 |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 890 | return Replace(jsgraph()->ZeroConstant()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 891 | } |
| 892 | if (input_type->Is(Type::Boolean())) { |
| 893 | // JSToNumber(x:boolean) => BooleanToNumber(x) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 894 | return Replace(graph()->NewNode(simplified()->BooleanToNumber(), input)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 895 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 896 | if (input_type->Is(Type::String())) { |
| 897 | // JSToNumber(x:string) => StringToNumber(x) |
| 898 | return Replace(graph()->NewNode(simplified()->StringToNumber(), input)); |
| 899 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 900 | return NoChange(); |
| 901 | } |
| 902 | |
| 903 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 904 | Reduction JSTypedLowering::ReduceJSToNumber(Node* node) { |
| 905 | // Try to reduce the input first. |
| 906 | Node* const input = node->InputAt(0); |
| 907 | Reduction reduction = ReduceJSToNumberInput(input); |
| 908 | if (reduction.Changed()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 909 | ReplaceWithValue(node, reduction.replacement()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 910 | return reduction; |
| 911 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 912 | Type* const input_type = NodeProperties::GetType(input); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 913 | if (input_type->Is(Type::PlainPrimitive())) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 914 | RelaxEffectsAndControls(node); |
| 915 | node->TrimInputCount(1); |
| 916 | NodeProperties::ChangeOp(node, simplified()->PlainPrimitiveToNumber()); |
| 917 | return Changed(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 918 | } |
| 919 | return NoChange(); |
| 920 | } |
| 921 | |
| 922 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 923 | Reduction JSTypedLowering::ReduceJSToStringInput(Node* input) { |
| 924 | if (input->opcode() == IrOpcode::kJSToString) { |
| 925 | // Recursively try to reduce the input first. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 926 | Reduction result = ReduceJSToString(input); |
| 927 | if (result.Changed()) return result; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 928 | return Changed(input); // JSToString(JSToString(x)) => JSToString(x) |
| 929 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 930 | Type* input_type = NodeProperties::GetType(input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 931 | if (input_type->Is(Type::String())) { |
| 932 | return Changed(input); // JSToString(x:string) => x |
| 933 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 934 | if (input_type->Is(Type::Boolean())) { |
| 935 | return Replace(graph()->NewNode( |
| 936 | common()->Select(MachineRepresentation::kTagged), input, |
| 937 | jsgraph()->HeapConstant(factory()->true_string()), |
| 938 | jsgraph()->HeapConstant(factory()->false_string()))); |
| 939 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 940 | if (input_type->Is(Type::Undefined())) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 941 | return Replace(jsgraph()->HeapConstant(factory()->undefined_string())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 942 | } |
| 943 | if (input_type->Is(Type::Null())) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 944 | return Replace(jsgraph()->HeapConstant(factory()->null_string())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 945 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 946 | // TODO(turbofan): js-typed-lowering of ToString(x:number) |
| 947 | return NoChange(); |
| 948 | } |
| 949 | |
| 950 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 951 | Reduction JSTypedLowering::ReduceJSToString(Node* node) { |
| 952 | // Try to reduce the input first. |
| 953 | Node* const input = node->InputAt(0); |
| 954 | Reduction reduction = ReduceJSToStringInput(input); |
| 955 | if (reduction.Changed()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 956 | ReplaceWithValue(node, reduction.replacement()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 957 | return reduction; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 958 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 959 | return NoChange(); |
| 960 | } |
| 961 | |
| 962 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 963 | Reduction JSTypedLowering::ReduceJSToObject(Node* node) { |
| 964 | DCHECK_EQ(IrOpcode::kJSToObject, node->opcode()); |
| 965 | Node* receiver = NodeProperties::GetValueInput(node, 0); |
| 966 | Type* receiver_type = NodeProperties::GetType(receiver); |
| 967 | Node* context = NodeProperties::GetContextInput(node); |
| 968 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 0); |
| 969 | Node* effect = NodeProperties::GetEffectInput(node); |
| 970 | Node* control = NodeProperties::GetControlInput(node); |
| 971 | if (!receiver_type->Is(Type::Receiver())) { |
| 972 | // TODO(bmeurer/mstarzinger): Add support for lowering inside try blocks. |
| 973 | if (receiver_type->Maybe(Type::NullOrUndefined()) && |
| 974 | NodeProperties::IsExceptionalCall(node)) { |
| 975 | // ToObject throws for null or undefined inputs. |
| 976 | return NoChange(); |
| 977 | } |
| 978 | |
| 979 | // Check whether {receiver} is a Smi. |
| 980 | Node* check0 = graph()->NewNode(simplified()->ObjectIsSmi(), receiver); |
| 981 | Node* branch0 = |
| 982 | graph()->NewNode(common()->Branch(BranchHint::kFalse), check0, control); |
| 983 | Node* if_true0 = graph()->NewNode(common()->IfTrue(), branch0); |
| 984 | Node* etrue0 = effect; |
| 985 | |
| 986 | Node* if_false0 = graph()->NewNode(common()->IfFalse(), branch0); |
| 987 | Node* efalse0 = effect; |
| 988 | |
| 989 | // Determine the instance type of {receiver}. |
| 990 | Node* receiver_map = efalse0 = |
| 991 | graph()->NewNode(simplified()->LoadField(AccessBuilder::ForMap()), |
| 992 | receiver, efalse0, if_false0); |
| 993 | Node* receiver_instance_type = efalse0 = graph()->NewNode( |
| 994 | simplified()->LoadField(AccessBuilder::ForMapInstanceType()), |
| 995 | receiver_map, efalse0, if_false0); |
| 996 | |
| 997 | // Check whether {receiver} is a spec object. |
| 998 | STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); |
| 999 | Node* check1 = |
| 1000 | graph()->NewNode(machine()->Uint32LessThanOrEqual(), |
| 1001 | jsgraph()->Uint32Constant(FIRST_JS_RECEIVER_TYPE), |
| 1002 | receiver_instance_type); |
| 1003 | Node* branch1 = graph()->NewNode(common()->Branch(BranchHint::kTrue), |
| 1004 | check1, if_false0); |
| 1005 | Node* if_true1 = graph()->NewNode(common()->IfTrue(), branch1); |
| 1006 | Node* etrue1 = efalse0; |
| 1007 | |
| 1008 | Node* if_false1 = graph()->NewNode(common()->IfFalse(), branch1); |
| 1009 | Node* efalse1 = efalse0; |
| 1010 | |
| 1011 | // Convert {receiver} using the ToObjectStub. |
| 1012 | Node* if_convert = |
| 1013 | graph()->NewNode(common()->Merge(2), if_true0, if_false1); |
| 1014 | Node* econvert = |
| 1015 | graph()->NewNode(common()->EffectPhi(2), etrue0, efalse1, if_convert); |
| 1016 | Node* rconvert; |
| 1017 | { |
| 1018 | Callable callable = CodeFactory::ToObject(isolate()); |
| 1019 | CallDescriptor const* const desc = Linkage::GetStubCallDescriptor( |
| 1020 | isolate(), graph()->zone(), callable.descriptor(), 0, |
| 1021 | CallDescriptor::kNeedsFrameState, node->op()->properties()); |
| 1022 | rconvert = econvert = graph()->NewNode( |
| 1023 | common()->Call(desc), jsgraph()->HeapConstant(callable.code()), |
| 1024 | receiver, context, frame_state, econvert, if_convert); |
| 1025 | } |
| 1026 | |
| 1027 | // The {receiver} is already a spec object. |
| 1028 | Node* if_done = if_true1; |
| 1029 | Node* edone = etrue1; |
| 1030 | Node* rdone = receiver; |
| 1031 | |
| 1032 | control = graph()->NewNode(common()->Merge(2), if_convert, if_done); |
| 1033 | effect = graph()->NewNode(common()->EffectPhi(2), econvert, edone, control); |
| 1034 | receiver = |
| 1035 | graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2), |
| 1036 | rconvert, rdone, control); |
| 1037 | } |
| 1038 | ReplaceWithValue(node, receiver, effect, control); |
| 1039 | return Changed(receiver); |
| 1040 | } |
| 1041 | |
| 1042 | |
| 1043 | Reduction JSTypedLowering::ReduceJSLoadNamed(Node* node) { |
| 1044 | DCHECK_EQ(IrOpcode::kJSLoadNamed, node->opcode()); |
| 1045 | Node* receiver = NodeProperties::GetValueInput(node, 0); |
| 1046 | Type* receiver_type = NodeProperties::GetType(receiver); |
| 1047 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1048 | Node* control = NodeProperties::GetControlInput(node); |
| 1049 | Handle<Name> name = NamedAccessOf(node->op()).name(); |
| 1050 | // Optimize "length" property of strings. |
| 1051 | if (name.is_identical_to(factory()->length_string()) && |
| 1052 | receiver_type->Is(Type::String())) { |
| 1053 | Node* value = effect = graph()->NewNode( |
| 1054 | simplified()->LoadField(AccessBuilder::ForStringLength()), receiver, |
| 1055 | effect, control); |
| 1056 | ReplaceWithValue(node, value, effect); |
| 1057 | return Replace(value); |
| 1058 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1059 | return NoChange(); |
| 1060 | } |
| 1061 | |
| 1062 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1063 | Reduction JSTypedLowering::ReduceJSLoadProperty(Node* node) { |
| 1064 | Node* key = NodeProperties::GetValueInput(node, 1); |
| 1065 | Node* base = NodeProperties::GetValueInput(node, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1066 | Type* key_type = NodeProperties::GetType(key); |
| 1067 | HeapObjectMatcher mbase(base); |
| 1068 | if (mbase.HasValue() && mbase.Value()->IsJSTypedArray()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1069 | Handle<JSTypedArray> const array = |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1070 | Handle<JSTypedArray>::cast(mbase.Value()); |
| 1071 | if (!array->GetBuffer()->was_neutered()) { |
| 1072 | array->GetBuffer()->set_is_neuterable(false); |
| 1073 | BufferAccess const access(array->type()); |
| 1074 | size_t const k = |
| 1075 | ElementSizeLog2Of(access.machine_type().representation()); |
| 1076 | double const byte_length = array->byte_length()->Number(); |
| 1077 | CHECK_LT(k, arraysize(shifted_int32_ranges_)); |
| 1078 | if (key_type->Is(shifted_int32_ranges_[k]) && byte_length <= kMaxInt) { |
| 1079 | // JSLoadProperty(typed-array, int32) |
| 1080 | Handle<FixedTypedArrayBase> elements = |
| 1081 | Handle<FixedTypedArrayBase>::cast(handle(array->elements())); |
| 1082 | Node* buffer = jsgraph()->PointerConstant(elements->external_pointer()); |
| 1083 | Node* length = jsgraph()->Constant(byte_length); |
| 1084 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1085 | Node* control = NodeProperties::GetControlInput(node); |
| 1086 | // Check if we can avoid the bounds check. |
| 1087 | if (key_type->Min() >= 0 && key_type->Max() < array->length_value()) { |
| 1088 | Node* load = graph()->NewNode( |
| 1089 | simplified()->LoadElement( |
| 1090 | AccessBuilder::ForTypedArrayElement(array->type(), true)), |
| 1091 | buffer, key, effect, control); |
| 1092 | ReplaceWithValue(node, load, load); |
| 1093 | return Replace(load); |
| 1094 | } |
| 1095 | // Compute byte offset. |
| 1096 | Node* offset = Word32Shl(key, static_cast<int>(k)); |
| 1097 | Node* load = graph()->NewNode(simplified()->LoadBuffer(access), buffer, |
| 1098 | offset, length, effect, control); |
| 1099 | ReplaceWithValue(node, load, load); |
| 1100 | return Replace(load); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1101 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1102 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1103 | } |
| 1104 | return NoChange(); |
| 1105 | } |
| 1106 | |
| 1107 | |
| 1108 | Reduction JSTypedLowering::ReduceJSStoreProperty(Node* node) { |
| 1109 | Node* key = NodeProperties::GetValueInput(node, 1); |
| 1110 | Node* base = NodeProperties::GetValueInput(node, 0); |
| 1111 | Node* value = NodeProperties::GetValueInput(node, 2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1112 | Type* key_type = NodeProperties::GetType(key); |
| 1113 | Type* value_type = NodeProperties::GetType(value); |
| 1114 | HeapObjectMatcher mbase(base); |
| 1115 | if (mbase.HasValue() && mbase.Value()->IsJSTypedArray()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1116 | Handle<JSTypedArray> const array = |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1117 | Handle<JSTypedArray>::cast(mbase.Value()); |
| 1118 | if (!array->GetBuffer()->was_neutered()) { |
| 1119 | array->GetBuffer()->set_is_neuterable(false); |
| 1120 | BufferAccess const access(array->type()); |
| 1121 | size_t const k = |
| 1122 | ElementSizeLog2Of(access.machine_type().representation()); |
| 1123 | double const byte_length = array->byte_length()->Number(); |
| 1124 | CHECK_LT(k, arraysize(shifted_int32_ranges_)); |
| 1125 | if (access.external_array_type() != kExternalUint8ClampedArray && |
| 1126 | key_type->Is(shifted_int32_ranges_[k]) && byte_length <= kMaxInt) { |
| 1127 | // JSLoadProperty(typed-array, int32) |
| 1128 | Handle<FixedTypedArrayBase> elements = |
| 1129 | Handle<FixedTypedArrayBase>::cast(handle(array->elements())); |
| 1130 | Node* buffer = jsgraph()->PointerConstant(elements->external_pointer()); |
| 1131 | Node* length = jsgraph()->Constant(byte_length); |
| 1132 | Node* context = NodeProperties::GetContextInput(node); |
| 1133 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1134 | Node* control = NodeProperties::GetControlInput(node); |
| 1135 | // Convert to a number first. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1136 | if (!value_type->Is(Type::Number())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1137 | Reduction number_reduction = ReduceJSToNumberInput(value); |
| 1138 | if (number_reduction.Changed()) { |
| 1139 | value = number_reduction.replacement(); |
| 1140 | } else { |
| 1141 | Node* frame_state_for_to_number = |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1142 | NodeProperties::FindFrameStateBefore(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1143 | value = effect = |
| 1144 | graph()->NewNode(javascript()->ToNumber(), value, context, |
| 1145 | frame_state_for_to_number, effect, control); |
| 1146 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1147 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1148 | // Check if we can avoid the bounds check. |
| 1149 | if (key_type->Min() >= 0 && key_type->Max() < array->length_value()) { |
| 1150 | RelaxControls(node); |
| 1151 | node->ReplaceInput(0, buffer); |
| 1152 | DCHECK_EQ(key, node->InputAt(1)); |
| 1153 | node->ReplaceInput(2, value); |
| 1154 | node->ReplaceInput(3, effect); |
| 1155 | node->ReplaceInput(4, control); |
| 1156 | node->TrimInputCount(5); |
| 1157 | NodeProperties::ChangeOp( |
| 1158 | node, |
| 1159 | simplified()->StoreElement( |
| 1160 | AccessBuilder::ForTypedArrayElement(array->type(), true))); |
| 1161 | return Changed(node); |
| 1162 | } |
| 1163 | // Compute byte offset. |
| 1164 | Node* offset = Word32Shl(key, static_cast<int>(k)); |
| 1165 | // Turn into a StoreBuffer operation. |
| 1166 | RelaxControls(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1167 | node->ReplaceInput(0, buffer); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1168 | node->ReplaceInput(1, offset); |
| 1169 | node->ReplaceInput(2, length); |
| 1170 | node->ReplaceInput(3, value); |
| 1171 | node->ReplaceInput(4, effect); |
| 1172 | node->ReplaceInput(5, control); |
| 1173 | node->TrimInputCount(6); |
| 1174 | NodeProperties::ChangeOp(node, simplified()->StoreBuffer(access)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1175 | return Changed(node); |
| 1176 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1177 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1178 | } |
| 1179 | return NoChange(); |
| 1180 | } |
| 1181 | |
| 1182 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1183 | Reduction JSTypedLowering::ReduceJSInstanceOf(Node* node) { |
| 1184 | DCHECK_EQ(IrOpcode::kJSInstanceOf, node->opcode()); |
| 1185 | Node* const context = NodeProperties::GetContextInput(node); |
| 1186 | Node* const frame_state = NodeProperties::GetFrameStateInput(node, 0); |
| 1187 | |
| 1188 | // If deoptimization is disabled, we cannot optimize. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1189 | if (!(flags() & kDeoptimizationEnabled)) return NoChange(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1190 | |
| 1191 | // If we are in a try block, don't optimize since the runtime call |
| 1192 | // in the proxy case can throw. |
| 1193 | if (NodeProperties::IsExceptionalCall(node)) return NoChange(); |
| 1194 | |
| 1195 | JSBinopReduction r(this, node); |
| 1196 | Node* effect = r.effect(); |
| 1197 | Node* control = r.control(); |
| 1198 | |
| 1199 | if (!r.right_type()->IsConstant() || |
| 1200 | !r.right_type()->AsConstant()->Value()->IsJSFunction()) { |
| 1201 | return NoChange(); |
| 1202 | } |
| 1203 | |
| 1204 | Handle<JSFunction> function = |
| 1205 | Handle<JSFunction>::cast(r.right_type()->AsConstant()->Value()); |
| 1206 | Handle<SharedFunctionInfo> shared(function->shared(), isolate()); |
| 1207 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1208 | // Make sure the prototype of {function} is the %FunctionPrototype%, and it |
| 1209 | // already has a meaningful initial map (i.e. we constructed at least one |
| 1210 | // instance using the constructor {function}). |
| 1211 | if (function->map()->prototype() != function->native_context()->closure() || |
| 1212 | function->map()->has_non_instance_prototype() || |
| 1213 | !function->has_initial_map()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1214 | return NoChange(); |
| 1215 | } |
| 1216 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1217 | // We can only use the fast case if @@hasInstance was not used so far. |
| 1218 | if (!isolate()->IsHasInstanceLookupChainIntact()) return NoChange(); |
| 1219 | dependencies()->AssumePropertyCell(factory()->has_instance_protector()); |
| 1220 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1221 | Handle<Map> initial_map(function->initial_map(), isolate()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1222 | dependencies()->AssumeInitialMapCantChange(initial_map); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1223 | Node* prototype = |
| 1224 | jsgraph()->Constant(handle(initial_map->prototype(), isolate())); |
| 1225 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1226 | // If the left hand side is an object, no smi check is needed. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1227 | Node* is_smi = graph()->NewNode(simplified()->ObjectIsSmi(), r.left()); |
| 1228 | Node* branch_is_smi = |
| 1229 | graph()->NewNode(common()->Branch(BranchHint::kFalse), is_smi, control); |
| 1230 | Node* if_is_smi = graph()->NewNode(common()->IfTrue(), branch_is_smi); |
| 1231 | Node* e_is_smi = effect; |
| 1232 | control = graph()->NewNode(common()->IfFalse(), branch_is_smi); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1233 | |
| 1234 | Node* object_map = effect = |
| 1235 | graph()->NewNode(simplified()->LoadField(AccessBuilder::ForMap()), |
| 1236 | r.left(), effect, control); |
| 1237 | |
| 1238 | // Loop through the {object}s prototype chain looking for the {prototype}. |
| 1239 | Node* loop = control = graph()->NewNode(common()->Loop(2), control, control); |
| 1240 | |
| 1241 | Node* loop_effect = effect = |
| 1242 | graph()->NewNode(common()->EffectPhi(2), effect, effect, loop); |
| 1243 | |
| 1244 | Node* loop_object_map = |
| 1245 | graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2), |
| 1246 | object_map, r.left(), loop); |
| 1247 | |
| 1248 | // Check if the lhs needs access checks. |
| 1249 | Node* map_bit_field = effect = |
| 1250 | graph()->NewNode(simplified()->LoadField(AccessBuilder::ForMapBitField()), |
| 1251 | loop_object_map, loop_effect, control); |
| 1252 | int is_access_check_needed_bit = 1 << Map::kIsAccessCheckNeeded; |
| 1253 | Node* is_access_check_needed_num = |
| 1254 | graph()->NewNode(simplified()->NumberBitwiseAnd(), map_bit_field, |
| 1255 | jsgraph()->Uint32Constant(is_access_check_needed_bit)); |
| 1256 | Node* is_access_check_needed = |
| 1257 | graph()->NewNode(machine()->Word32Equal(), is_access_check_needed_num, |
| 1258 | jsgraph()->Uint32Constant(is_access_check_needed_bit)); |
| 1259 | |
| 1260 | Node* branch_is_access_check_needed = graph()->NewNode( |
| 1261 | common()->Branch(BranchHint::kFalse), is_access_check_needed, control); |
| 1262 | Node* if_is_access_check_needed = |
| 1263 | graph()->NewNode(common()->IfTrue(), branch_is_access_check_needed); |
| 1264 | Node* e_is_access_check_needed = effect; |
| 1265 | |
| 1266 | control = |
| 1267 | graph()->NewNode(common()->IfFalse(), branch_is_access_check_needed); |
| 1268 | |
| 1269 | // Check if the lhs is a proxy. |
| 1270 | Node* map_instance_type = effect = graph()->NewNode( |
| 1271 | simplified()->LoadField(AccessBuilder::ForMapInstanceType()), |
| 1272 | loop_object_map, loop_effect, control); |
| 1273 | Node* is_proxy = graph()->NewNode(machine()->Word32Equal(), map_instance_type, |
| 1274 | jsgraph()->Uint32Constant(JS_PROXY_TYPE)); |
| 1275 | Node* branch_is_proxy = |
| 1276 | graph()->NewNode(common()->Branch(BranchHint::kFalse), is_proxy, control); |
| 1277 | Node* if_is_proxy = graph()->NewNode(common()->IfTrue(), branch_is_proxy); |
| 1278 | Node* e_is_proxy = effect; |
| 1279 | |
| 1280 | |
| 1281 | Node* runtime_has_in_proto_chain = control = graph()->NewNode( |
| 1282 | common()->Merge(2), if_is_access_check_needed, if_is_proxy); |
| 1283 | effect = graph()->NewNode(common()->EffectPhi(2), e_is_access_check_needed, |
| 1284 | e_is_proxy, control); |
| 1285 | |
| 1286 | // If we need an access check or the object is a Proxy, make a runtime call |
| 1287 | // to finish the lowering. |
| 1288 | Node* bool_result_runtime_has_in_proto_chain_case = graph()->NewNode( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1289 | javascript()->CallRuntime(Runtime::kHasInPrototypeChain), r.left(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1290 | prototype, context, frame_state, effect, control); |
| 1291 | |
| 1292 | control = graph()->NewNode(common()->IfFalse(), branch_is_proxy); |
| 1293 | |
| 1294 | Node* object_prototype = effect = graph()->NewNode( |
| 1295 | simplified()->LoadField(AccessBuilder::ForMapPrototype()), |
| 1296 | loop_object_map, loop_effect, control); |
| 1297 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1298 | // If not, check if object prototype is the null prototype. |
| 1299 | Node* null_proto = |
| 1300 | graph()->NewNode(simplified()->ReferenceEqual(r.right_type()), |
| 1301 | object_prototype, jsgraph()->NullConstant()); |
| 1302 | Node* branch_null_proto = graph()->NewNode( |
| 1303 | common()->Branch(BranchHint::kFalse), null_proto, control); |
| 1304 | Node* if_null_proto = graph()->NewNode(common()->IfTrue(), branch_null_proto); |
| 1305 | Node* e_null_proto = effect; |
| 1306 | |
| 1307 | control = graph()->NewNode(common()->IfFalse(), branch_null_proto); |
| 1308 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1309 | // Check if object prototype is equal to function prototype. |
| 1310 | Node* eq_proto = |
| 1311 | graph()->NewNode(simplified()->ReferenceEqual(r.right_type()), |
| 1312 | object_prototype, prototype); |
| 1313 | Node* branch_eq_proto = |
| 1314 | graph()->NewNode(common()->Branch(BranchHint::kFalse), eq_proto, control); |
| 1315 | Node* if_eq_proto = graph()->NewNode(common()->IfTrue(), branch_eq_proto); |
| 1316 | Node* e_eq_proto = effect; |
| 1317 | |
| 1318 | control = graph()->NewNode(common()->IfFalse(), branch_eq_proto); |
| 1319 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1320 | Node* load_object_map = effect = |
| 1321 | graph()->NewNode(simplified()->LoadField(AccessBuilder::ForMap()), |
| 1322 | object_prototype, effect, control); |
| 1323 | // Close the loop. |
| 1324 | loop_effect->ReplaceInput(1, effect); |
| 1325 | loop_object_map->ReplaceInput(1, load_object_map); |
| 1326 | loop->ReplaceInput(1, control); |
| 1327 | |
| 1328 | control = graph()->NewNode(common()->Merge(3), runtime_has_in_proto_chain, |
| 1329 | if_eq_proto, if_null_proto); |
| 1330 | effect = graph()->NewNode(common()->EffectPhi(3), |
| 1331 | bool_result_runtime_has_in_proto_chain_case, |
| 1332 | e_eq_proto, e_null_proto, control); |
| 1333 | |
| 1334 | Node* result = graph()->NewNode( |
| 1335 | common()->Phi(MachineRepresentation::kTagged, 3), |
| 1336 | bool_result_runtime_has_in_proto_chain_case, jsgraph()->TrueConstant(), |
| 1337 | jsgraph()->FalseConstant(), control); |
| 1338 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1339 | DCHECK_NOT_NULL(e_is_smi); |
| 1340 | control = graph()->NewNode(common()->Merge(2), if_is_smi, control); |
| 1341 | effect = |
| 1342 | graph()->NewNode(common()->EffectPhi(2), e_is_smi, effect, control); |
| 1343 | result = graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2), |
| 1344 | jsgraph()->FalseConstant(), result, control); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1345 | |
| 1346 | ReplaceWithValue(node, result, effect, control); |
| 1347 | return Changed(result); |
| 1348 | } |
| 1349 | |
| 1350 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1351 | Reduction JSTypedLowering::ReduceJSLoadContext(Node* node) { |
| 1352 | DCHECK_EQ(IrOpcode::kJSLoadContext, node->opcode()); |
| 1353 | ContextAccess const& access = ContextAccessOf(node->op()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1354 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1355 | Node* control = graph()->start(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1356 | for (size_t i = 0; i < access.depth(); ++i) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1357 | Node* previous = effect = graph()->NewNode( |
| 1358 | simplified()->LoadField( |
| 1359 | AccessBuilder::ForContextSlot(Context::PREVIOUS_INDEX)), |
| 1360 | NodeProperties::GetValueInput(node, 0), effect, control); |
| 1361 | node->ReplaceInput(0, previous); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1362 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1363 | node->ReplaceInput(1, effect); |
| 1364 | node->ReplaceInput(2, control); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1365 | NodeProperties::ChangeOp( |
| 1366 | node, |
| 1367 | simplified()->LoadField(AccessBuilder::ForContextSlot(access.index()))); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1368 | return Changed(node); |
| 1369 | } |
| 1370 | |
| 1371 | |
| 1372 | Reduction JSTypedLowering::ReduceJSStoreContext(Node* node) { |
| 1373 | DCHECK_EQ(IrOpcode::kJSStoreContext, node->opcode()); |
| 1374 | ContextAccess const& access = ContextAccessOf(node->op()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1375 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1376 | Node* control = graph()->start(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1377 | for (size_t i = 0; i < access.depth(); ++i) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1378 | Node* previous = effect = graph()->NewNode( |
| 1379 | simplified()->LoadField( |
| 1380 | AccessBuilder::ForContextSlot(Context::PREVIOUS_INDEX)), |
| 1381 | NodeProperties::GetValueInput(node, 0), effect, control); |
| 1382 | node->ReplaceInput(0, previous); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1383 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1384 | node->RemoveInput(2); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1385 | node->ReplaceInput(2, effect); |
| 1386 | NodeProperties::ChangeOp( |
| 1387 | node, |
| 1388 | simplified()->StoreField(AccessBuilder::ForContextSlot(access.index()))); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1389 | return Changed(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1390 | } |
| 1391 | |
| 1392 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1393 | Reduction JSTypedLowering::ReduceJSConvertReceiver(Node* node) { |
| 1394 | DCHECK_EQ(IrOpcode::kJSConvertReceiver, node->opcode()); |
| 1395 | ConvertReceiverMode mode = ConvertReceiverModeOf(node->op()); |
| 1396 | Node* receiver = NodeProperties::GetValueInput(node, 0); |
| 1397 | Type* receiver_type = NodeProperties::GetType(receiver); |
| 1398 | Node* context = NodeProperties::GetContextInput(node); |
| 1399 | Type* context_type = NodeProperties::GetType(context); |
| 1400 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 0); |
| 1401 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1402 | Node* control = NodeProperties::GetControlInput(node); |
| 1403 | if (!receiver_type->Is(Type::Receiver())) { |
| 1404 | if (receiver_type->Is(Type::NullOrUndefined()) || |
| 1405 | mode == ConvertReceiverMode::kNullOrUndefined) { |
| 1406 | if (context_type->IsConstant()) { |
| 1407 | Handle<JSObject> global_proxy( |
| 1408 | Handle<Context>::cast(context_type->AsConstant()->Value()) |
| 1409 | ->global_proxy(), |
| 1410 | isolate()); |
| 1411 | receiver = jsgraph()->Constant(global_proxy); |
| 1412 | } else { |
| 1413 | Node* native_context = effect = graph()->NewNode( |
| 1414 | javascript()->LoadContext(0, Context::NATIVE_CONTEXT_INDEX, true), |
| 1415 | context, context, effect); |
| 1416 | receiver = effect = graph()->NewNode( |
| 1417 | javascript()->LoadContext(0, Context::GLOBAL_PROXY_INDEX, true), |
| 1418 | native_context, native_context, effect); |
| 1419 | } |
| 1420 | } else if (!receiver_type->Maybe(Type::NullOrUndefined()) || |
| 1421 | mode == ConvertReceiverMode::kNotNullOrUndefined) { |
| 1422 | receiver = effect = |
| 1423 | graph()->NewNode(javascript()->ToObject(), receiver, context, |
| 1424 | frame_state, effect, control); |
| 1425 | } else { |
| 1426 | // Check {receiver} for undefined. |
| 1427 | Node* check0 = |
| 1428 | graph()->NewNode(simplified()->ReferenceEqual(receiver_type), |
| 1429 | receiver, jsgraph()->UndefinedConstant()); |
| 1430 | Node* branch0 = graph()->NewNode(common()->Branch(BranchHint::kFalse), |
| 1431 | check0, control); |
| 1432 | Node* if_true0 = graph()->NewNode(common()->IfTrue(), branch0); |
| 1433 | Node* if_false0 = graph()->NewNode(common()->IfFalse(), branch0); |
| 1434 | |
| 1435 | // Check {receiver} for null. |
| 1436 | Node* check1 = |
| 1437 | graph()->NewNode(simplified()->ReferenceEqual(receiver_type), |
| 1438 | receiver, jsgraph()->NullConstant()); |
| 1439 | Node* branch1 = graph()->NewNode(common()->Branch(BranchHint::kFalse), |
| 1440 | check1, if_false0); |
| 1441 | Node* if_true1 = graph()->NewNode(common()->IfTrue(), branch1); |
| 1442 | Node* if_false1 = graph()->NewNode(common()->IfFalse(), branch1); |
| 1443 | |
| 1444 | // Convert {receiver} using ToObject. |
| 1445 | Node* if_convert = if_false1; |
| 1446 | Node* econvert = effect; |
| 1447 | Node* rconvert; |
| 1448 | { |
| 1449 | rconvert = econvert = |
| 1450 | graph()->NewNode(javascript()->ToObject(), receiver, context, |
| 1451 | frame_state, econvert, if_convert); |
| 1452 | } |
| 1453 | |
| 1454 | // Replace {receiver} with global proxy of {context}. |
| 1455 | Node* if_global = |
| 1456 | graph()->NewNode(common()->Merge(2), if_true0, if_true1); |
| 1457 | Node* eglobal = effect; |
| 1458 | Node* rglobal; |
| 1459 | { |
| 1460 | if (context_type->IsConstant()) { |
| 1461 | Handle<JSObject> global_proxy( |
| 1462 | Handle<Context>::cast(context_type->AsConstant()->Value()) |
| 1463 | ->global_proxy(), |
| 1464 | isolate()); |
| 1465 | rglobal = jsgraph()->Constant(global_proxy); |
| 1466 | } else { |
| 1467 | Node* native_context = eglobal = graph()->NewNode( |
| 1468 | javascript()->LoadContext(0, Context::NATIVE_CONTEXT_INDEX, true), |
| 1469 | context, context, eglobal); |
| 1470 | rglobal = eglobal = graph()->NewNode( |
| 1471 | javascript()->LoadContext(0, Context::GLOBAL_PROXY_INDEX, true), |
| 1472 | native_context, native_context, eglobal); |
| 1473 | } |
| 1474 | } |
| 1475 | |
| 1476 | control = graph()->NewNode(common()->Merge(2), if_convert, if_global); |
| 1477 | effect = |
| 1478 | graph()->NewNode(common()->EffectPhi(2), econvert, eglobal, control); |
| 1479 | receiver = |
| 1480 | graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2), |
| 1481 | rconvert, rglobal, control); |
| 1482 | } |
| 1483 | } |
| 1484 | ReplaceWithValue(node, receiver, effect, control); |
| 1485 | return Changed(receiver); |
| 1486 | } |
| 1487 | |
| 1488 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1489 | Reduction JSTypedLowering::ReduceJSCallConstruct(Node* node) { |
| 1490 | DCHECK_EQ(IrOpcode::kJSCallConstruct, node->opcode()); |
| 1491 | CallConstructParameters const& p = CallConstructParametersOf(node->op()); |
| 1492 | DCHECK_LE(2u, p.arity()); |
| 1493 | int const arity = static_cast<int>(p.arity() - 2); |
| 1494 | Node* target = NodeProperties::GetValueInput(node, 0); |
| 1495 | Type* target_type = NodeProperties::GetType(target); |
| 1496 | Node* new_target = NodeProperties::GetValueInput(node, arity + 1); |
| 1497 | |
| 1498 | // Check if {target} is a known JSFunction. |
| 1499 | if (target_type->IsConstant() && |
| 1500 | target_type->AsConstant()->Value()->IsJSFunction()) { |
| 1501 | Handle<JSFunction> function = |
| 1502 | Handle<JSFunction>::cast(target_type->AsConstant()->Value()); |
| 1503 | Handle<SharedFunctionInfo> shared(function->shared(), isolate()); |
| 1504 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1505 | // Patch {node} to an indirect call via the {function}s construct stub. |
| 1506 | Callable callable(handle(shared->construct_stub(), isolate()), |
| 1507 | ConstructStubDescriptor(isolate())); |
| 1508 | node->RemoveInput(arity + 1); |
| 1509 | node->InsertInput(graph()->zone(), 0, |
| 1510 | jsgraph()->HeapConstant(callable.code())); |
| 1511 | node->InsertInput(graph()->zone(), 2, new_target); |
| 1512 | node->InsertInput(graph()->zone(), 3, jsgraph()->Int32Constant(arity)); |
| 1513 | node->InsertInput(graph()->zone(), 4, jsgraph()->UndefinedConstant()); |
| 1514 | node->InsertInput(graph()->zone(), 5, jsgraph()->UndefinedConstant()); |
| 1515 | NodeProperties::ChangeOp( |
| 1516 | node, common()->Call(Linkage::GetStubCallDescriptor( |
| 1517 | isolate(), graph()->zone(), callable.descriptor(), 1 + arity, |
| 1518 | CallDescriptor::kNeedsFrameState))); |
| 1519 | return Changed(node); |
| 1520 | } |
| 1521 | |
| 1522 | // Check if {target} is a JSFunction. |
| 1523 | if (target_type->Is(Type::Function())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1524 | // Patch {node} to an indirect call via the ConstructFunction builtin. |
| 1525 | Callable callable = CodeFactory::ConstructFunction(isolate()); |
| 1526 | node->RemoveInput(arity + 1); |
| 1527 | node->InsertInput(graph()->zone(), 0, |
| 1528 | jsgraph()->HeapConstant(callable.code())); |
| 1529 | node->InsertInput(graph()->zone(), 2, new_target); |
| 1530 | node->InsertInput(graph()->zone(), 3, jsgraph()->Int32Constant(arity)); |
| 1531 | node->InsertInput(graph()->zone(), 4, jsgraph()->UndefinedConstant()); |
| 1532 | NodeProperties::ChangeOp( |
| 1533 | node, common()->Call(Linkage::GetStubCallDescriptor( |
| 1534 | isolate(), graph()->zone(), callable.descriptor(), 1 + arity, |
| 1535 | CallDescriptor::kNeedsFrameState))); |
| 1536 | return Changed(node); |
| 1537 | } |
| 1538 | |
| 1539 | return NoChange(); |
| 1540 | } |
| 1541 | |
| 1542 | |
| 1543 | Reduction JSTypedLowering::ReduceJSCallFunction(Node* node) { |
| 1544 | DCHECK_EQ(IrOpcode::kJSCallFunction, node->opcode()); |
| 1545 | CallFunctionParameters const& p = CallFunctionParametersOf(node->op()); |
| 1546 | int const arity = static_cast<int>(p.arity() - 2); |
| 1547 | ConvertReceiverMode convert_mode = p.convert_mode(); |
| 1548 | Node* target = NodeProperties::GetValueInput(node, 0); |
| 1549 | Type* target_type = NodeProperties::GetType(target); |
| 1550 | Node* receiver = NodeProperties::GetValueInput(node, 1); |
| 1551 | Type* receiver_type = NodeProperties::GetType(receiver); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1552 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1553 | Node* control = NodeProperties::GetControlInput(node); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1554 | Node* frame_state = NodeProperties::FindFrameStateBefore(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1555 | |
| 1556 | // Try to infer receiver {convert_mode} from {receiver} type. |
| 1557 | if (receiver_type->Is(Type::NullOrUndefined())) { |
| 1558 | convert_mode = ConvertReceiverMode::kNullOrUndefined; |
| 1559 | } else if (!receiver_type->Maybe(Type::NullOrUndefined())) { |
| 1560 | convert_mode = ConvertReceiverMode::kNotNullOrUndefined; |
| 1561 | } |
| 1562 | |
| 1563 | // Check if {target} is a known JSFunction. |
| 1564 | if (target_type->IsConstant() && |
| 1565 | target_type->AsConstant()->Value()->IsJSFunction()) { |
| 1566 | Handle<JSFunction> function = |
| 1567 | Handle<JSFunction>::cast(target_type->AsConstant()->Value()); |
| 1568 | Handle<SharedFunctionInfo> shared(function->shared(), isolate()); |
| 1569 | |
| 1570 | // Class constructors are callable, but [[Call]] will raise an exception. |
| 1571 | // See ES6 section 9.2.1 [[Call]] ( thisArgument, argumentsList ). |
| 1572 | if (IsClassConstructor(shared->kind())) return NoChange(); |
| 1573 | |
| 1574 | // Load the context from the {target}. |
| 1575 | Node* context = effect = graph()->NewNode( |
| 1576 | simplified()->LoadField(AccessBuilder::ForJSFunctionContext()), target, |
| 1577 | effect, control); |
| 1578 | NodeProperties::ReplaceContextInput(node, context); |
| 1579 | |
| 1580 | // Check if we need to convert the {receiver}. |
| 1581 | if (is_sloppy(shared->language_mode()) && !shared->native() && |
| 1582 | !receiver_type->Is(Type::Receiver())) { |
| 1583 | receiver = effect = |
| 1584 | graph()->NewNode(javascript()->ConvertReceiver(convert_mode), |
| 1585 | receiver, context, frame_state, effect, control); |
| 1586 | NodeProperties::ReplaceValueInput(node, receiver, 1); |
| 1587 | } |
| 1588 | |
| 1589 | // Update the effect dependency for the {node}. |
| 1590 | NodeProperties::ReplaceEffectInput(node, effect); |
| 1591 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1592 | // Compute flags for the call. |
| 1593 | CallDescriptor::Flags flags = CallDescriptor::kNeedsFrameState; |
| 1594 | if (p.tail_call_mode() == TailCallMode::kAllow) { |
| 1595 | flags |= CallDescriptor::kSupportsTailCalls; |
| 1596 | } |
| 1597 | |
| 1598 | Node* new_target = jsgraph()->UndefinedConstant(); |
| 1599 | Node* argument_count = jsgraph()->Int32Constant(arity); |
| 1600 | if (shared->internal_formal_parameter_count() == arity || |
| 1601 | shared->internal_formal_parameter_count() == |
| 1602 | SharedFunctionInfo::kDontAdaptArgumentsSentinel) { |
| 1603 | // Patch {node} to a direct call. |
| 1604 | node->InsertInput(graph()->zone(), arity + 2, new_target); |
| 1605 | node->InsertInput(graph()->zone(), arity + 3, argument_count); |
| 1606 | NodeProperties::ChangeOp(node, |
| 1607 | common()->Call(Linkage::GetJSCallDescriptor( |
| 1608 | graph()->zone(), false, 1 + arity, flags))); |
| 1609 | } else { |
| 1610 | // Patch {node} to an indirect call via the ArgumentsAdaptorTrampoline. |
| 1611 | Callable callable = CodeFactory::ArgumentAdaptor(isolate()); |
| 1612 | node->InsertInput(graph()->zone(), 0, |
| 1613 | jsgraph()->HeapConstant(callable.code())); |
| 1614 | node->InsertInput(graph()->zone(), 2, new_target); |
| 1615 | node->InsertInput(graph()->zone(), 3, argument_count); |
| 1616 | node->InsertInput( |
| 1617 | graph()->zone(), 4, |
| 1618 | jsgraph()->Int32Constant(shared->internal_formal_parameter_count())); |
| 1619 | NodeProperties::ChangeOp( |
| 1620 | node, common()->Call(Linkage::GetStubCallDescriptor( |
| 1621 | isolate(), graph()->zone(), callable.descriptor(), |
| 1622 | 1 + arity, flags))); |
| 1623 | } |
| 1624 | return Changed(node); |
| 1625 | } |
| 1626 | |
| 1627 | // Check if {target} is a JSFunction. |
| 1628 | if (target_type->Is(Type::Function())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1629 | // Compute flags for the call. |
| 1630 | CallDescriptor::Flags flags = CallDescriptor::kNeedsFrameState; |
| 1631 | if (p.tail_call_mode() == TailCallMode::kAllow) { |
| 1632 | flags |= CallDescriptor::kSupportsTailCalls; |
| 1633 | } |
| 1634 | |
| 1635 | // Patch {node} to an indirect call via the CallFunction builtin. |
| 1636 | Callable callable = CodeFactory::CallFunction(isolate(), convert_mode); |
| 1637 | node->InsertInput(graph()->zone(), 0, |
| 1638 | jsgraph()->HeapConstant(callable.code())); |
| 1639 | node->InsertInput(graph()->zone(), 2, jsgraph()->Int32Constant(arity)); |
| 1640 | NodeProperties::ChangeOp( |
| 1641 | node, common()->Call(Linkage::GetStubCallDescriptor( |
| 1642 | isolate(), graph()->zone(), callable.descriptor(), 1 + arity, |
| 1643 | flags))); |
| 1644 | return Changed(node); |
| 1645 | } |
| 1646 | |
| 1647 | // Maybe we did at least learn something about the {receiver}. |
| 1648 | if (p.convert_mode() != convert_mode) { |
| 1649 | NodeProperties::ChangeOp( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1650 | node, javascript()->CallFunction(p.arity(), p.feedback(), convert_mode, |
| 1651 | p.tail_call_mode())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1652 | return Changed(node); |
| 1653 | } |
| 1654 | |
| 1655 | return NoChange(); |
| 1656 | } |
| 1657 | |
| 1658 | |
| 1659 | Reduction JSTypedLowering::ReduceJSForInDone(Node* node) { |
| 1660 | DCHECK_EQ(IrOpcode::kJSForInDone, node->opcode()); |
| 1661 | node->TrimInputCount(2); |
| 1662 | NodeProperties::ChangeOp(node, machine()->Word32Equal()); |
| 1663 | return Changed(node); |
| 1664 | } |
| 1665 | |
| 1666 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1667 | Reduction JSTypedLowering::ReduceJSForInNext(Node* node) { |
| 1668 | DCHECK_EQ(IrOpcode::kJSForInNext, node->opcode()); |
| 1669 | Node* receiver = NodeProperties::GetValueInput(node, 0); |
| 1670 | Node* cache_array = NodeProperties::GetValueInput(node, 1); |
| 1671 | Node* cache_type = NodeProperties::GetValueInput(node, 2); |
| 1672 | Node* index = NodeProperties::GetValueInput(node, 3); |
| 1673 | Node* context = NodeProperties::GetContextInput(node); |
| 1674 | Node* frame_state = NodeProperties::GetFrameStateInput(node, 0); |
| 1675 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1676 | Node* control = NodeProperties::GetControlInput(node); |
| 1677 | |
| 1678 | // Load the next {key} from the {cache_array}. |
| 1679 | Node* key = effect = graph()->NewNode( |
| 1680 | simplified()->LoadElement(AccessBuilder::ForFixedArrayElement()), |
| 1681 | cache_array, index, effect, control); |
| 1682 | |
| 1683 | // Load the map of the {receiver}. |
| 1684 | Node* receiver_map = effect = |
| 1685 | graph()->NewNode(simplified()->LoadField(AccessBuilder::ForMap()), |
| 1686 | receiver, effect, control); |
| 1687 | |
| 1688 | // Check if the expected map still matches that of the {receiver}. |
| 1689 | Node* check0 = graph()->NewNode(simplified()->ReferenceEqual(Type::Any()), |
| 1690 | receiver_map, cache_type); |
| 1691 | Node* branch0 = |
| 1692 | graph()->NewNode(common()->Branch(BranchHint::kTrue), check0, control); |
| 1693 | |
| 1694 | Node* if_true0 = graph()->NewNode(common()->IfTrue(), branch0); |
| 1695 | Node* etrue0; |
| 1696 | Node* vtrue0; |
| 1697 | { |
| 1698 | // Don't need filtering since expected map still matches that of the |
| 1699 | // {receiver}. |
| 1700 | etrue0 = effect; |
| 1701 | vtrue0 = key; |
| 1702 | } |
| 1703 | |
| 1704 | Node* if_false0 = graph()->NewNode(common()->IfFalse(), branch0); |
| 1705 | Node* efalse0; |
| 1706 | Node* vfalse0; |
| 1707 | { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1708 | // Filter the {key} to check if it's still a valid property of the |
| 1709 | // {receiver} (does the ToName conversion implicitly). |
| 1710 | vfalse0 = efalse0 = graph()->NewNode( |
| 1711 | javascript()->CallRuntime(Runtime::kForInFilter), receiver, key, |
| 1712 | context, frame_state, effect, if_false0); |
| 1713 | if_false0 = graph()->NewNode(common()->IfSuccess(), vfalse0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1714 | } |
| 1715 | |
| 1716 | control = graph()->NewNode(common()->Merge(2), if_true0, if_false0); |
| 1717 | effect = graph()->NewNode(common()->EffectPhi(2), etrue0, efalse0, control); |
| 1718 | ReplaceWithValue(node, node, effect, control); |
| 1719 | node->ReplaceInput(0, vtrue0); |
| 1720 | node->ReplaceInput(1, vfalse0); |
| 1721 | node->ReplaceInput(2, control); |
| 1722 | node->TrimInputCount(3); |
| 1723 | NodeProperties::ChangeOp(node, |
| 1724 | common()->Phi(MachineRepresentation::kTagged, 2)); |
| 1725 | return Changed(node); |
| 1726 | } |
| 1727 | |
| 1728 | |
| 1729 | Reduction JSTypedLowering::ReduceJSForInStep(Node* node) { |
| 1730 | DCHECK_EQ(IrOpcode::kJSForInStep, node->opcode()); |
| 1731 | node->ReplaceInput(1, jsgraph()->Int32Constant(1)); |
| 1732 | NodeProperties::ChangeOp(node, machine()->Int32Add()); |
| 1733 | return Changed(node); |
| 1734 | } |
| 1735 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1736 | Reduction JSTypedLowering::ReduceJSGeneratorStore(Node* node) { |
| 1737 | DCHECK_EQ(IrOpcode::kJSGeneratorStore, node->opcode()); |
| 1738 | Node* generator = NodeProperties::GetValueInput(node, 0); |
| 1739 | Node* continuation = NodeProperties::GetValueInput(node, 1); |
| 1740 | Node* offset = NodeProperties::GetValueInput(node, 2); |
| 1741 | Node* context = NodeProperties::GetContextInput(node); |
| 1742 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1743 | Node* control = NodeProperties::GetControlInput(node); |
| 1744 | int register_count = OpParameter<int>(node); |
| 1745 | |
| 1746 | FieldAccess array_field = AccessBuilder::ForJSGeneratorObjectOperandStack(); |
| 1747 | FieldAccess context_field = AccessBuilder::ForJSGeneratorObjectContext(); |
| 1748 | FieldAccess continuation_field = |
| 1749 | AccessBuilder::ForJSGeneratorObjectContinuation(); |
| 1750 | FieldAccess input_or_debug_pos_field = |
| 1751 | AccessBuilder::ForJSGeneratorObjectInputOrDebugPos(); |
| 1752 | |
| 1753 | Node* array = effect = graph()->NewNode(simplified()->LoadField(array_field), |
| 1754 | generator, effect, control); |
| 1755 | |
| 1756 | for (int i = 0; i < register_count; ++i) { |
| 1757 | Node* value = NodeProperties::GetValueInput(node, 3 + i); |
| 1758 | effect = graph()->NewNode( |
| 1759 | simplified()->StoreField(AccessBuilder::ForFixedArraySlot(i)), array, |
| 1760 | value, effect, control); |
| 1761 | } |
| 1762 | |
| 1763 | effect = graph()->NewNode(simplified()->StoreField(context_field), generator, |
| 1764 | context, effect, control); |
| 1765 | effect = graph()->NewNode(simplified()->StoreField(continuation_field), |
| 1766 | generator, continuation, effect, control); |
| 1767 | effect = graph()->NewNode(simplified()->StoreField(input_or_debug_pos_field), |
| 1768 | generator, offset, effect, control); |
| 1769 | |
| 1770 | ReplaceWithValue(node, effect, effect, control); |
| 1771 | return Changed(effect); |
| 1772 | } |
| 1773 | |
| 1774 | Reduction JSTypedLowering::ReduceJSGeneratorRestoreContinuation(Node* node) { |
| 1775 | DCHECK_EQ(IrOpcode::kJSGeneratorRestoreContinuation, node->opcode()); |
| 1776 | Node* generator = NodeProperties::GetValueInput(node, 0); |
| 1777 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1778 | Node* control = NodeProperties::GetControlInput(node); |
| 1779 | |
| 1780 | FieldAccess continuation_field = |
| 1781 | AccessBuilder::ForJSGeneratorObjectContinuation(); |
| 1782 | |
| 1783 | Node* continuation = effect = graph()->NewNode( |
| 1784 | simplified()->LoadField(continuation_field), generator, effect, control); |
| 1785 | Node* executing = jsgraph()->Constant(JSGeneratorObject::kGeneratorExecuting); |
| 1786 | effect = graph()->NewNode(simplified()->StoreField(continuation_field), |
| 1787 | generator, executing, effect, control); |
| 1788 | |
| 1789 | ReplaceWithValue(node, continuation, effect, control); |
| 1790 | return Changed(continuation); |
| 1791 | } |
| 1792 | |
| 1793 | Reduction JSTypedLowering::ReduceJSGeneratorRestoreRegister(Node* node) { |
| 1794 | DCHECK_EQ(IrOpcode::kJSGeneratorRestoreRegister, node->opcode()); |
| 1795 | Node* generator = NodeProperties::GetValueInput(node, 0); |
| 1796 | Node* effect = NodeProperties::GetEffectInput(node); |
| 1797 | Node* control = NodeProperties::GetControlInput(node); |
| 1798 | int index = OpParameter<int>(node); |
| 1799 | |
| 1800 | FieldAccess array_field = AccessBuilder::ForJSGeneratorObjectOperandStack(); |
| 1801 | FieldAccess element_field = AccessBuilder::ForFixedArraySlot(index); |
| 1802 | |
| 1803 | Node* array = effect = graph()->NewNode(simplified()->LoadField(array_field), |
| 1804 | generator, effect, control); |
| 1805 | Node* element = effect = graph()->NewNode( |
| 1806 | simplified()->LoadField(element_field), array, effect, control); |
| 1807 | Node* stale = jsgraph()->StaleRegisterConstant(); |
| 1808 | effect = graph()->NewNode(simplified()->StoreField(element_field), array, |
| 1809 | stale, effect, control); |
| 1810 | |
| 1811 | ReplaceWithValue(node, element, effect, control); |
| 1812 | return Changed(element); |
| 1813 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1814 | |
| 1815 | Reduction JSTypedLowering::ReduceSelect(Node* node) { |
| 1816 | DCHECK_EQ(IrOpcode::kSelect, node->opcode()); |
| 1817 | Node* const condition = NodeProperties::GetValueInput(node, 0); |
| 1818 | Type* const condition_type = NodeProperties::GetType(condition); |
| 1819 | Node* const vtrue = NodeProperties::GetValueInput(node, 1); |
| 1820 | Type* const vtrue_type = NodeProperties::GetType(vtrue); |
| 1821 | Node* const vfalse = NodeProperties::GetValueInput(node, 2); |
| 1822 | Type* const vfalse_type = NodeProperties::GetType(vfalse); |
| 1823 | if (condition_type->Is(true_type_)) { |
| 1824 | // Select(condition:true, vtrue, vfalse) => vtrue |
| 1825 | return Replace(vtrue); |
| 1826 | } |
| 1827 | if (condition_type->Is(false_type_)) { |
| 1828 | // Select(condition:false, vtrue, vfalse) => vfalse |
| 1829 | return Replace(vfalse); |
| 1830 | } |
| 1831 | if (vtrue_type->Is(true_type_) && vfalse_type->Is(false_type_)) { |
| 1832 | // Select(condition, vtrue:true, vfalse:false) => condition |
| 1833 | return Replace(condition); |
| 1834 | } |
| 1835 | if (vtrue_type->Is(false_type_) && vfalse_type->Is(true_type_)) { |
| 1836 | // Select(condition, vtrue:false, vfalse:true) => BooleanNot(condition) |
| 1837 | node->TrimInputCount(1); |
| 1838 | NodeProperties::ChangeOp(node, simplified()->BooleanNot()); |
| 1839 | return Changed(node); |
| 1840 | } |
| 1841 | return NoChange(); |
| 1842 | } |
| 1843 | |
| 1844 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1845 | Reduction JSTypedLowering::Reduce(Node* node) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1846 | // Check if the output type is a singleton. In that case we already know the |
| 1847 | // result value and can simply replace the node if it's eliminable. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1848 | if (!NodeProperties::IsConstant(node) && NodeProperties::IsTyped(node) && |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1849 | node->op()->HasProperty(Operator::kEliminatable)) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1850 | // We can only constant-fold nodes here, that are known to not cause any |
| 1851 | // side-effect, may it be a JavaScript observable side-effect or a possible |
| 1852 | // eager deoptimization exit (i.e. {node} has an operator that doesn't have |
| 1853 | // the Operator::kNoDeopt property). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1854 | Type* upper = NodeProperties::GetType(node); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1855 | if (upper->IsInhabited()) { |
| 1856 | if (upper->IsConstant()) { |
| 1857 | Node* replacement = jsgraph()->Constant(upper->AsConstant()->Value()); |
| 1858 | ReplaceWithValue(node, replacement); |
| 1859 | return Changed(replacement); |
| 1860 | } else if (upper->Is(Type::MinusZero())) { |
| 1861 | Node* replacement = jsgraph()->Constant(factory()->minus_zero_value()); |
| 1862 | ReplaceWithValue(node, replacement); |
| 1863 | return Changed(replacement); |
| 1864 | } else if (upper->Is(Type::NaN())) { |
| 1865 | Node* replacement = jsgraph()->NaNConstant(); |
| 1866 | ReplaceWithValue(node, replacement); |
| 1867 | return Changed(replacement); |
| 1868 | } else if (upper->Is(Type::Null())) { |
| 1869 | Node* replacement = jsgraph()->NullConstant(); |
| 1870 | ReplaceWithValue(node, replacement); |
| 1871 | return Changed(replacement); |
| 1872 | } else if (upper->Is(Type::PlainNumber()) && |
| 1873 | upper->Min() == upper->Max()) { |
| 1874 | Node* replacement = jsgraph()->Constant(upper->Min()); |
| 1875 | ReplaceWithValue(node, replacement); |
| 1876 | return Changed(replacement); |
| 1877 | } else if (upper->Is(Type::Undefined())) { |
| 1878 | Node* replacement = jsgraph()->UndefinedConstant(); |
| 1879 | ReplaceWithValue(node, replacement); |
| 1880 | return Changed(replacement); |
| 1881 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1882 | } |
| 1883 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1884 | switch (node->opcode()) { |
| 1885 | case IrOpcode::kJSEqual: |
| 1886 | return ReduceJSEqual(node, false); |
| 1887 | case IrOpcode::kJSNotEqual: |
| 1888 | return ReduceJSEqual(node, true); |
| 1889 | case IrOpcode::kJSStrictEqual: |
| 1890 | return ReduceJSStrictEqual(node, false); |
| 1891 | case IrOpcode::kJSStrictNotEqual: |
| 1892 | return ReduceJSStrictEqual(node, true); |
| 1893 | case IrOpcode::kJSLessThan: // fall through |
| 1894 | case IrOpcode::kJSGreaterThan: // fall through |
| 1895 | case IrOpcode::kJSLessThanOrEqual: // fall through |
| 1896 | case IrOpcode::kJSGreaterThanOrEqual: |
| 1897 | return ReduceJSComparison(node); |
| 1898 | case IrOpcode::kJSBitwiseOr: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1899 | return ReduceInt32Binop(node, simplified()->NumberBitwiseOr()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1900 | case IrOpcode::kJSBitwiseXor: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1901 | return ReduceInt32Binop(node, simplified()->NumberBitwiseXor()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1902 | case IrOpcode::kJSBitwiseAnd: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1903 | return ReduceInt32Binop(node, simplified()->NumberBitwiseAnd()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1904 | case IrOpcode::kJSShiftLeft: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1905 | return ReduceUI32Shift(node, kSigned, simplified()->NumberShiftLeft()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1906 | case IrOpcode::kJSShiftRight: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1907 | return ReduceUI32Shift(node, kSigned, simplified()->NumberShiftRight()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1908 | case IrOpcode::kJSShiftRightLogical: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1909 | return ReduceUI32Shift(node, kUnsigned, |
| 1910 | simplified()->NumberShiftRightLogical()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1911 | case IrOpcode::kJSAdd: |
| 1912 | return ReduceJSAdd(node); |
| 1913 | case IrOpcode::kJSSubtract: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1914 | return ReduceJSSubtract(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1915 | case IrOpcode::kJSMultiply: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1916 | return ReduceJSMultiply(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1917 | case IrOpcode::kJSDivide: |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1918 | return ReduceJSDivide(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1919 | case IrOpcode::kJSModulus: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1920 | return ReduceJSModulus(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1921 | case IrOpcode::kJSToBoolean: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1922 | return ReduceJSToBoolean(node); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1923 | case IrOpcode::kJSToInteger: |
| 1924 | return ReduceJSToInteger(node); |
| 1925 | case IrOpcode::kJSToLength: |
| 1926 | return ReduceJSToLength(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1927 | case IrOpcode::kJSToNumber: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1928 | return ReduceJSToNumber(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1929 | case IrOpcode::kJSToString: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1930 | return ReduceJSToString(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1931 | case IrOpcode::kJSToObject: |
| 1932 | return ReduceJSToObject(node); |
| 1933 | case IrOpcode::kJSLoadNamed: |
| 1934 | return ReduceJSLoadNamed(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1935 | case IrOpcode::kJSLoadProperty: |
| 1936 | return ReduceJSLoadProperty(node); |
| 1937 | case IrOpcode::kJSStoreProperty: |
| 1938 | return ReduceJSStoreProperty(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1939 | case IrOpcode::kJSInstanceOf: |
| 1940 | return ReduceJSInstanceOf(node); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1941 | case IrOpcode::kJSLoadContext: |
| 1942 | return ReduceJSLoadContext(node); |
| 1943 | case IrOpcode::kJSStoreContext: |
| 1944 | return ReduceJSStoreContext(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1945 | case IrOpcode::kJSConvertReceiver: |
| 1946 | return ReduceJSConvertReceiver(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1947 | case IrOpcode::kJSCallConstruct: |
| 1948 | return ReduceJSCallConstruct(node); |
| 1949 | case IrOpcode::kJSCallFunction: |
| 1950 | return ReduceJSCallFunction(node); |
| 1951 | case IrOpcode::kJSForInDone: |
| 1952 | return ReduceJSForInDone(node); |
| 1953 | case IrOpcode::kJSForInNext: |
| 1954 | return ReduceJSForInNext(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1955 | case IrOpcode::kJSForInStep: |
| 1956 | return ReduceJSForInStep(node); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1957 | case IrOpcode::kJSGeneratorStore: |
| 1958 | return ReduceJSGeneratorStore(node); |
| 1959 | case IrOpcode::kJSGeneratorRestoreContinuation: |
| 1960 | return ReduceJSGeneratorRestoreContinuation(node); |
| 1961 | case IrOpcode::kJSGeneratorRestoreRegister: |
| 1962 | return ReduceJSGeneratorRestoreRegister(node); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1963 | case IrOpcode::kSelect: |
| 1964 | return ReduceSelect(node); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1965 | default: |
| 1966 | break; |
| 1967 | } |
| 1968 | return NoChange(); |
| 1969 | } |
| 1970 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1971 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1972 | Node* JSTypedLowering::Word32Shl(Node* const lhs, int32_t const rhs) { |
| 1973 | if (rhs == 0) return lhs; |
| 1974 | return graph()->NewNode(machine()->Word32Shl(), lhs, |
| 1975 | jsgraph()->Int32Constant(rhs)); |
| 1976 | } |
| 1977 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame^] | 1978 | Node* JSTypedLowering::EmptyFrameState() { |
| 1979 | return graph()->NewNode( |
| 1980 | common()->FrameState(BailoutId::None(), OutputFrameStateCombine::Ignore(), |
| 1981 | nullptr), |
| 1982 | jsgraph()->EmptyStateValues(), jsgraph()->EmptyStateValues(), |
| 1983 | jsgraph()->EmptyStateValues(), jsgraph()->NoContextConstant(), |
| 1984 | jsgraph()->UndefinedConstant(), graph()->start()); |
| 1985 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1986 | |
| 1987 | Factory* JSTypedLowering::factory() const { return jsgraph()->factory(); } |
| 1988 | |
| 1989 | |
| 1990 | Graph* JSTypedLowering::graph() const { return jsgraph()->graph(); } |
| 1991 | |
| 1992 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1993 | Isolate* JSTypedLowering::isolate() const { return jsgraph()->isolate(); } |
| 1994 | |
| 1995 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1996 | JSOperatorBuilder* JSTypedLowering::javascript() const { |
| 1997 | return jsgraph()->javascript(); |
| 1998 | } |
| 1999 | |
| 2000 | |
| 2001 | CommonOperatorBuilder* JSTypedLowering::common() const { |
| 2002 | return jsgraph()->common(); |
| 2003 | } |
| 2004 | |
| 2005 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2006 | SimplifiedOperatorBuilder* JSTypedLowering::simplified() const { |
| 2007 | return jsgraph()->simplified(); |
| 2008 | } |
| 2009 | |
| 2010 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2011 | MachineOperatorBuilder* JSTypedLowering::machine() const { |
| 2012 | return jsgraph()->machine(); |
| 2013 | } |
| 2014 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2015 | |
| 2016 | CompilationDependencies* JSTypedLowering::dependencies() const { |
| 2017 | return dependencies_; |
| 2018 | } |
| 2019 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2020 | } // namespace compiler |
| 2021 | } // namespace internal |
| 2022 | } // namespace v8 |