OLD | NEW |
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_ARM | 5 #if V8_TARGET_ARCH_ARM |
6 | 6 |
7 #include "src/ast/scopes.h" | 7 #include "src/ast/scopes.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
(...skipping 184 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
195 } | 195 } |
196 function_in_register_r1 = false; | 196 function_in_register_r1 = false; |
197 // Context is returned in r0. It replaces the context passed to us. | 197 // Context is returned in r0. It replaces the context passed to us. |
198 // It's saved in the stack and kept live in cp. | 198 // It's saved in the stack and kept live in cp. |
199 __ mov(cp, r0); | 199 __ mov(cp, r0); |
200 __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 200 __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
201 // Copy any necessary parameters into the context. | 201 // Copy any necessary parameters into the context. |
202 int num_parameters = info->scope()->num_parameters(); | 202 int num_parameters = info->scope()->num_parameters(); |
203 int first_parameter = info->scope()->has_this_declaration() ? -1 : 0; | 203 int first_parameter = info->scope()->has_this_declaration() ? -1 : 0; |
204 for (int i = first_parameter; i < num_parameters; i++) { | 204 for (int i = first_parameter; i < num_parameters; i++) { |
205 Variable* var = (i == -1) ? scope()->receiver() : scope()->parameter(i); | 205 Variable* var = |
| 206 (i == -1) ? info->scope()->receiver() : info->scope()->parameter(i); |
206 if (var->IsContextSlot()) { | 207 if (var->IsContextSlot()) { |
207 int parameter_offset = StandardFrameConstants::kCallerSPOffset + | 208 int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
208 (num_parameters - 1 - i) * kPointerSize; | 209 (num_parameters - 1 - i) * kPointerSize; |
209 // Load parameter from stack. | 210 // Load parameter from stack. |
210 __ ldr(r0, MemOperand(fp, parameter_offset)); | 211 __ ldr(r0, MemOperand(fp, parameter_offset)); |
211 // Store it in the context. | 212 // Store it in the context. |
212 MemOperand target = ContextMemOperand(cp, var->index()); | 213 MemOperand target = ContextMemOperand(cp, var->index()); |
213 __ str(r0, target); | 214 __ str(r0, target); |
214 | 215 |
215 // Update the write barrier. | 216 // Update the write barrier. |
(...skipping 11 matching lines...) Expand all Loading... |
227 } | 228 } |
228 | 229 |
229 // Register holding this function and new target are both trashed in case we | 230 // Register holding this function and new target are both trashed in case we |
230 // bailout here. But since that can happen only when new target is not used | 231 // bailout here. But since that can happen only when new target is not used |
231 // and we allocate a context, the value of |function_in_register| is correct. | 232 // and we allocate a context, the value of |function_in_register| is correct. |
232 PrepareForBailoutForId(BailoutId::FunctionContext(), | 233 PrepareForBailoutForId(BailoutId::FunctionContext(), |
233 BailoutState::NO_REGISTERS); | 234 BailoutState::NO_REGISTERS); |
234 | 235 |
235 // Possibly set up a local binding to the this function which is used in | 236 // Possibly set up a local binding to the this function which is used in |
236 // derived constructors with super calls. | 237 // derived constructors with super calls. |
237 Variable* this_function_var = scope()->this_function_var(); | 238 Variable* this_function_var = info->scope()->this_function_var(); |
238 if (this_function_var != nullptr) { | 239 if (this_function_var != nullptr) { |
239 Comment cmnt(masm_, "[ This function"); | 240 Comment cmnt(masm_, "[ This function"); |
240 if (!function_in_register_r1) { | 241 if (!function_in_register_r1) { |
241 __ ldr(r1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 242 __ ldr(r1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
242 // The write barrier clobbers register again, keep it marked as such. | 243 // The write barrier clobbers register again, keep it marked as such. |
243 } | 244 } |
244 SetVar(this_function_var, r1, r0, r2); | 245 SetVar(this_function_var, r1, r0, r2); |
245 } | 246 } |
246 | 247 |
247 // Possibly set up a local binding to the new target value. | 248 // Possibly set up a local binding to the new target value. |
248 Variable* new_target_var = scope()->new_target_var(); | 249 Variable* new_target_var = info->scope()->new_target_var(); |
249 if (new_target_var != nullptr) { | 250 if (new_target_var != nullptr) { |
250 Comment cmnt(masm_, "[ new.target"); | 251 Comment cmnt(masm_, "[ new.target"); |
251 SetVar(new_target_var, r3, r0, r2); | 252 SetVar(new_target_var, r3, r0, r2); |
252 } | 253 } |
253 | 254 |
254 // Possibly allocate RestParameters | 255 // Possibly allocate RestParameters |
255 int rest_index; | 256 int rest_index; |
256 Variable* rest_param = scope()->rest_parameter(&rest_index); | 257 Variable* rest_param = info->scope()->rest_parameter(&rest_index); |
257 if (rest_param) { | 258 if (rest_param) { |
258 Comment cmnt(masm_, "[ Allocate rest parameter array"); | 259 Comment cmnt(masm_, "[ Allocate rest parameter array"); |
259 if (!function_in_register_r1) { | 260 if (!function_in_register_r1) { |
260 __ ldr(r1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 261 __ ldr(r1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
261 } | 262 } |
262 FastNewRestParameterStub stub(isolate()); | 263 FastNewRestParameterStub stub(isolate()); |
263 __ CallStub(&stub); | 264 __ CallStub(&stub); |
264 function_in_register_r1 = false; | 265 function_in_register_r1 = false; |
265 SetVar(rest_param, r0, r1, r2); | 266 SetVar(rest_param, r0, r1, r2); |
266 } | 267 } |
267 | 268 |
268 Variable* arguments = scope()->arguments(); | 269 Variable* arguments = info->scope()->arguments(); |
269 if (arguments != NULL) { | 270 if (arguments != NULL) { |
270 // Function uses arguments object. | 271 // Function uses arguments object. |
271 Comment cmnt(masm_, "[ Allocate arguments object"); | 272 Comment cmnt(masm_, "[ Allocate arguments object"); |
272 if (!function_in_register_r1) { | 273 if (!function_in_register_r1) { |
273 // Load this again, if it's used by the local context below. | 274 // Load this again, if it's used by the local context below. |
274 __ ldr(r1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 275 __ ldr(r1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
275 } | 276 } |
276 if (is_strict(language_mode()) || !has_simple_parameters()) { | 277 if (is_strict(language_mode()) || !has_simple_parameters()) { |
277 FastNewStrictArgumentsStub stub(isolate()); | 278 FastNewStrictArgumentsStub stub(isolate()); |
278 __ CallStub(&stub); | 279 __ CallStub(&stub); |
(...skipping 3339 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3618 __ str(value, MemOperand(fp, frame_offset)); | 3619 __ str(value, MemOperand(fp, frame_offset)); |
3619 } | 3620 } |
3620 | 3621 |
3621 | 3622 |
3622 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { | 3623 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
3623 __ ldr(dst, ContextMemOperand(cp, context_index)); | 3624 __ ldr(dst, ContextMemOperand(cp, context_index)); |
3624 } | 3625 } |
3625 | 3626 |
3626 | 3627 |
3627 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { | 3628 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { |
3628 Scope* closure_scope = scope()->ClosureScope(); | 3629 DeclarationScope* closure_scope = scope()->GetClosureScope(); |
3629 if (closure_scope->is_script_scope() || | 3630 if (closure_scope->is_script_scope() || |
3630 closure_scope->is_module_scope()) { | 3631 closure_scope->is_module_scope()) { |
3631 // Contexts nested in the native context have a canonical empty function | 3632 // Contexts nested in the native context have a canonical empty function |
3632 // as their closure, not the anonymous closure containing the global | 3633 // as their closure, not the anonymous closure containing the global |
3633 // code. | 3634 // code. |
3634 __ LoadNativeContextSlot(Context::CLOSURE_INDEX, ip); | 3635 __ LoadNativeContextSlot(Context::CLOSURE_INDEX, ip); |
3635 } else if (closure_scope->is_eval_scope()) { | 3636 } else if (closure_scope->is_eval_scope()) { |
3636 // Contexts created by a call to eval have the same closure as the | 3637 // Contexts created by a call to eval have the same closure as the |
3637 // context calling eval, not the anonymous closure containing the eval | 3638 // context calling eval, not the anonymous closure containing the eval |
3638 // code. Fetch it from the context. | 3639 // code. Fetch it from the context. |
(...skipping 206 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3845 DCHECK(interrupt_address == | 3846 DCHECK(interrupt_address == |
3846 isolate->builtins()->OnStackReplacement()->entry()); | 3847 isolate->builtins()->OnStackReplacement()->entry()); |
3847 return ON_STACK_REPLACEMENT; | 3848 return ON_STACK_REPLACEMENT; |
3848 } | 3849 } |
3849 | 3850 |
3850 | 3851 |
3851 } // namespace internal | 3852 } // namespace internal |
3852 } // namespace v8 | 3853 } // namespace v8 |
3853 | 3854 |
3854 #endif // V8_TARGET_ARCH_ARM | 3855 #endif // V8_TARGET_ARCH_ARM |
OLD | NEW |