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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_ARM | 5 #if V8_TARGET_ARCH_ARM |
| 6 | 6 |
| 7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
| 8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
| 9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
| 10 #include "src/compiler.h" | 10 #include "src/compiler.h" |
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| 148 int locals_count = info->scope()->num_stack_slots(); | 148 int locals_count = info->scope()->num_stack_slots(); |
| 149 // Generators allocate locals, if any, in context slots. | 149 // Generators allocate locals, if any, in context slots. |
| 150 DCHECK(!IsGeneratorFunction(info->literal()->kind()) || locals_count == 0); | 150 DCHECK(!IsGeneratorFunction(info->literal()->kind()) || locals_count == 0); |
| 151 if (locals_count > 0) { | 151 if (locals_count > 0) { |
| 152 if (locals_count >= 128) { | 152 if (locals_count >= 128) { |
| 153 Label ok; | 153 Label ok; |
| 154 __ sub(r9, sp, Operand(locals_count * kPointerSize)); | 154 __ sub(r9, sp, Operand(locals_count * kPointerSize)); |
| 155 __ LoadRoot(r2, Heap::kRealStackLimitRootIndex); | 155 __ LoadRoot(r2, Heap::kRealStackLimitRootIndex); |
| 156 __ cmp(r9, Operand(r2)); | 156 __ cmp(r9, Operand(r2)); |
| 157 __ b(hs, &ok); | 157 __ b(hs, &ok); |
| 158 __ InvokeBuiltin(Context::STACK_OVERFLOW_BUILTIN_INDEX, CALL_FUNCTION); | 158 __ CallRuntime(Runtime::kThrowStackOverflow, 0); |
| 159 __ bind(&ok); | 159 __ bind(&ok); |
| 160 } | 160 } |
| 161 __ LoadRoot(r9, Heap::kUndefinedValueRootIndex); | 161 __ LoadRoot(r9, Heap::kUndefinedValueRootIndex); |
| 162 int kMaxPushes = FLAG_optimize_for_size ? 4 : 32; | 162 int kMaxPushes = FLAG_optimize_for_size ? 4 : 32; |
| 163 if (locals_count >= kMaxPushes) { | 163 if (locals_count >= kMaxPushes) { |
| 164 int loop_iterations = locals_count / kMaxPushes; | 164 int loop_iterations = locals_count / kMaxPushes; |
| 165 __ mov(r2, Operand(loop_iterations)); | 165 __ mov(r2, Operand(loop_iterations)); |
| 166 Label loop_header; | 166 Label loop_header; |
| 167 __ bind(&loop_header); | 167 __ bind(&loop_header); |
| 168 // Do pushes. | 168 // Do pushes. |
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| 5361 DCHECK(interrupt_address == | 5361 DCHECK(interrupt_address == |
| 5362 isolate->builtins()->OsrAfterStackCheck()->entry()); | 5362 isolate->builtins()->OsrAfterStackCheck()->entry()); |
| 5363 return OSR_AFTER_STACK_CHECK; | 5363 return OSR_AFTER_STACK_CHECK; |
| 5364 } | 5364 } |
| 5365 | 5365 |
| 5366 | 5366 |
| 5367 } // namespace internal | 5367 } // namespace internal |
| 5368 } // namespace v8 | 5368 } // namespace v8 |
| 5369 | 5369 |
| 5370 #endif // V8_TARGET_ARCH_ARM | 5370 #endif // V8_TARGET_ARCH_ARM |
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