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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
| 6 | 6 |
| 7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
| 8 // | 8 // |
| 9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
| 10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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| 190 // Possibly allocate a local context. | 190 // Possibly allocate a local context. |
| 191 if (info->scope()->num_heap_slots() > 0) { | 191 if (info->scope()->num_heap_slots() > 0) { |
| 192 Comment cmnt(masm_, "[ Allocate context"); | 192 Comment cmnt(masm_, "[ Allocate context"); |
| 193 // Argument to NewContext is the function, which is still in a1. | 193 // Argument to NewContext is the function, which is still in a1. |
| 194 bool need_write_barrier = true; | 194 bool need_write_barrier = true; |
| 195 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 195 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 196 if (info->scope()->is_script_scope()) { | 196 if (info->scope()->is_script_scope()) { |
| 197 __ push(a1); | 197 __ push(a1); |
| 198 __ Push(info->scope()->GetScopeInfo(info->isolate())); | 198 __ Push(info->scope()->GetScopeInfo(info->isolate())); |
| 199 __ CallRuntime(Runtime::kNewScriptContext, 2); | 199 __ CallRuntime(Runtime::kNewScriptContext, 2); |
| 200 PrepareForBailoutForId(BailoutId::ScriptContext(), TOS_REG); |
| 200 } else if (slots <= FastNewContextStub::kMaximumSlots) { | 201 } else if (slots <= FastNewContextStub::kMaximumSlots) { |
| 201 FastNewContextStub stub(isolate(), slots); | 202 FastNewContextStub stub(isolate(), slots); |
| 202 __ CallStub(&stub); | 203 __ CallStub(&stub); |
| 203 // Result of FastNewContextStub is always in new space. | 204 // Result of FastNewContextStub is always in new space. |
| 204 need_write_barrier = false; | 205 need_write_barrier = false; |
| 205 } else { | 206 } else { |
| 206 __ push(a1); | 207 __ push(a1); |
| 207 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 208 __ CallRuntime(Runtime::kNewFunctionContext, 1); |
| 208 } | 209 } |
| 209 function_in_register_a1 = false; | 210 function_in_register_a1 = false; |
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| 231 cp, target.offset(), a0, a3, kRAHasBeenSaved, kDontSaveFPRegs); | 232 cp, target.offset(), a0, a3, kRAHasBeenSaved, kDontSaveFPRegs); |
| 232 } else if (FLAG_debug_code) { | 233 } else if (FLAG_debug_code) { |
| 233 Label done; | 234 Label done; |
| 234 __ JumpIfInNewSpace(cp, a0, &done); | 235 __ JumpIfInNewSpace(cp, a0, &done); |
| 235 __ Abort(kExpectedNewSpaceObject); | 236 __ Abort(kExpectedNewSpaceObject); |
| 236 __ bind(&done); | 237 __ bind(&done); |
| 237 } | 238 } |
| 238 } | 239 } |
| 239 } | 240 } |
| 240 } | 241 } |
| 242 PrepareForBailoutForId(BailoutId::FunctionContext(), NO_REGISTERS); |
| 241 | 243 |
| 242 PrepareForBailoutForId(BailoutId::Prologue(), NO_REGISTERS); | |
| 243 // Function register is trashed in case we bailout here. But since that | 244 // Function register is trashed in case we bailout here. But since that |
| 244 // could happen only when we allocate a context the value of | 245 // could happen only when we allocate a context the value of |
| 245 // |function_in_register_a1| is correct. | 246 // |function_in_register_a1| is correct. |
| 246 | 247 |
| 247 // Possibly set up a local binding to the this function which is used in | 248 // Possibly set up a local binding to the this function which is used in |
| 248 // derived constructors with super calls. | 249 // derived constructors with super calls. |
| 249 Variable* this_function_var = scope()->this_function_var(); | 250 Variable* this_function_var = scope()->this_function_var(); |
| 250 if (this_function_var != nullptr) { | 251 if (this_function_var != nullptr) { |
| 251 Comment cmnt(masm_, "[ This function"); | 252 Comment cmnt(masm_, "[ This function"); |
| 252 if (!function_in_register_a1) { | 253 if (!function_in_register_a1) { |
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| 5195 reinterpret_cast<uint64_t>( | 5196 reinterpret_cast<uint64_t>( |
| 5196 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5197 isolate->builtins()->OsrAfterStackCheck()->entry())); |
| 5197 return OSR_AFTER_STACK_CHECK; | 5198 return OSR_AFTER_STACK_CHECK; |
| 5198 } | 5199 } |
| 5199 | 5200 |
| 5200 | 5201 |
| 5201 } // namespace internal | 5202 } // namespace internal |
| 5202 } // namespace v8 | 5203 } // namespace v8 |
| 5203 | 5204 |
| 5204 #endif // V8_TARGET_ARCH_MIPS64 | 5205 #endif // V8_TARGET_ARCH_MIPS64 |
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