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| 1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/builtins/builtins-utils.h" | 5 #include "src/builtins/builtins-utils.h" |
| 6 #include "src/builtins/builtins.h" | 6 #include "src/builtins/builtins.h" |
| 7 #include "src/code-stub-assembler.h" | 7 #include "src/code-stub-assembler.h" |
| 8 #include "src/interface-descriptors.h" | 8 #include "src/interface-descriptors.h" |
| 9 #include "src/macro-assembler.h" | 9 #include "src/macro-assembler.h" |
| 10 | 10 |
| (...skipping 155 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 166 assembler->Branch( | 166 assembler->Branch( |
| 167 assembler->IntPtrLessThanOrEqual(length, assembler->IntPtrConstant(0)), | 167 assembler->IntPtrLessThanOrEqual(length, assembler->IntPtrConstant(0)), |
| 168 &if_empty, &if_notempty); | 168 &if_empty, &if_notempty); |
| 169 | 169 |
| 170 assembler->Bind(&if_empty); | 170 assembler->Bind(&if_empty); |
| 171 assembler->Return(assembler->EmptyFixedArrayConstant()); | 171 assembler->Return(assembler->EmptyFixedArrayConstant()); |
| 172 | 172 |
| 173 assembler->Bind(&if_notempty); | 173 assembler->Bind(&if_notempty); |
| 174 { | 174 { |
| 175 // Allocate a FixedArray in new space. | 175 // Allocate a FixedArray in new space. |
| 176 Node* result = assembler->AllocateFixedArray( | 176 Node* result = assembler->AllocateFixedArray(kind, length); |
| 177 kind, length, CodeStubAssembler::INTPTR_PARAMETERS); | |
| 178 | 177 |
| 179 // Compute the effective {offset} into the {frame}. | 178 // Compute the effective {offset} into the {frame}. |
| 180 Node* offset = assembler->IntPtrAdd(length, assembler->IntPtrConstant(1)); | 179 Node* offset = assembler->IntPtrAdd(length, assembler->IntPtrConstant(1)); |
| 181 | 180 |
| 182 // Copy the parameters from {frame} (starting at {offset}) to {result}. | 181 // Copy the parameters from {frame} (starting at {offset}) to {result}. |
| 183 Variable var_index(assembler, MachineType::PointerRepresentation()); | 182 Variable var_index(assembler, MachineType::PointerRepresentation()); |
| 184 Label loop(assembler, &var_index), done_loop(assembler); | 183 Label loop(assembler, &var_index), done_loop(assembler); |
| 185 var_index.Bind(assembler->IntPtrConstant(0)); | 184 var_index.Bind(assembler->IntPtrConstant(0)); |
| 186 assembler->Goto(&loop); | 185 assembler->Goto(&loop); |
| 187 assembler->Bind(&loop); | 186 assembler->Bind(&loop); |
| 188 { | 187 { |
| 189 // Load the current {index}. | 188 // Load the current {index}. |
| 190 Node* index = var_index.value(); | 189 Node* index = var_index.value(); |
| 191 | 190 |
| 192 // Check if we are done. | 191 // Check if we are done. |
| 193 assembler->GotoIf(assembler->WordEqual(index, length), &done_loop); | 192 assembler->GotoIf(assembler->WordEqual(index, length), &done_loop); |
| 194 | 193 |
| 195 // Load the parameter at the given {index}. | 194 // Load the parameter at the given {index}. |
| 196 Node* value = assembler->Load( | 195 Node* value = assembler->Load( |
| 197 MachineType::AnyTagged(), frame, | 196 MachineType::AnyTagged(), frame, |
| 198 assembler->WordShl(assembler->IntPtrSub(offset, index), | 197 assembler->WordShl(assembler->IntPtrSub(offset, index), |
| 199 assembler->IntPtrConstant(kPointerSizeLog2))); | 198 assembler->IntPtrConstant(kPointerSizeLog2))); |
| 200 | 199 |
| 201 // Store the {value} into the {result}. | 200 // Store the {value} into the {result}. |
| 202 assembler->StoreFixedArrayElement(result, index, value, | 201 assembler->StoreFixedArrayElement(result, index, value, |
| 203 SKIP_WRITE_BARRIER, 0, | 202 SKIP_WRITE_BARRIER); |
| 204 CodeStubAssembler::INTPTR_PARAMETERS); | |
| 205 | 203 |
| 206 // Continue with next {index}. | 204 // Continue with next {index}. |
| 207 var_index.Bind( | 205 var_index.Bind( |
| 208 assembler->IntPtrAdd(index, assembler->IntPtrConstant(1))); | 206 assembler->IntPtrAdd(index, assembler->IntPtrConstant(1))); |
| 209 assembler->Goto(&loop); | 207 assembler->Goto(&loop); |
| 210 } | 208 } |
| 211 | 209 |
| 212 assembler->Bind(&done_loop); | 210 assembler->Bind(&done_loop); |
| 213 assembler->Return(result); | 211 assembler->Return(result); |
| 214 } | 212 } |
| (...skipping 91 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 306 // Allocate the actual FixedArray for the elements. | 304 // Allocate the actual FixedArray for the elements. |
| 307 Generate_NewArgumentsElements(&assembler, frame, length); | 305 Generate_NewArgumentsElements(&assembler, frame, length); |
| 308 | 306 |
| 309 // No rest parameters, return an empty FixedArray. | 307 // No rest parameters, return an empty FixedArray. |
| 310 assembler.Bind(&if_empty); | 308 assembler.Bind(&if_empty); |
| 311 assembler.Return(assembler.EmptyFixedArrayConstant()); | 309 assembler.Return(assembler.EmptyFixedArrayConstant()); |
| 312 } | 310 } |
| 313 | 311 |
| 314 } // namespace internal | 312 } // namespace internal |
| 315 } // namespace v8 | 313 } // namespace v8 |
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