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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/code_generator.h" | 5 #include "vm/code_generator.h" |
| 6 | 6 |
| 7 #include "vm/assembler.h" | 7 #include "vm/assembler.h" |
| 8 #include "vm/ast.h" | 8 #include "vm/ast.h" |
| 9 #include "vm/code_patcher.h" | 9 #include "vm/code_patcher.h" |
| 10 #include "vm/compiler.h" | 10 #include "vm/compiler.h" |
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| 1162 } | 1162 } |
| 1163 if (FLAG_stacktrace_filter != NULL && | 1163 if (FLAG_stacktrace_filter != NULL && |
| 1164 strstr(function_name, FLAG_stacktrace_filter) != NULL) { | 1164 strstr(function_name, FLAG_stacktrace_filter) != NULL) { |
| 1165 OS::PrintErr("*** Computing stacktrace (%s)\n", | 1165 OS::PrintErr("*** Computing stacktrace (%s)\n", |
| 1166 function.ToFullyQualifiedCString()); | 1166 function.ToFullyQualifiedCString()); |
| 1167 do_stacktrace = true; | 1167 do_stacktrace = true; |
| 1168 } | 1168 } |
| 1169 } | 1169 } |
| 1170 if (do_deopt) { | 1170 if (do_deopt) { |
| 1171 // TODO(turnidge): Consider using DeoptimizeAt instead. | 1171 // TODO(turnidge): Consider using DeoptimizeAt instead. |
| 1172 DeoptimizeAll(); | 1172 DeoptimizeFunctionsOnStack(); |
| 1173 } | 1173 } |
| 1174 if (do_stacktrace) { | 1174 if (do_stacktrace) { |
| 1175 String& var_name = String::Handle(); | 1175 String& var_name = String::Handle(); |
| 1176 Instance& var_value = Instance::Handle(); | 1176 Instance& var_value = Instance::Handle(); |
| 1177 DebuggerStackTrace* stack = isolate->debugger()->StackTrace(); | 1177 DebuggerStackTrace* stack = isolate->debugger()->StackTrace(); |
| 1178 intptr_t num_frames = stack->Length(); | 1178 intptr_t num_frames = stack->Length(); |
| 1179 for (intptr_t i = 0; i < num_frames; i++) { | 1179 for (intptr_t i = 0; i < num_frames; i++) { |
| 1180 ActivationFrame* frame = stack->FrameAt(i); | 1180 ActivationFrame* frame = stack->FrameAt(i); |
| 1181 const int num_vars = frame->NumLocalVariables(); | 1181 const int num_vars = frame->NumLocalVariables(); |
| 1182 intptr_t unused; | 1182 intptr_t unused; |
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| 1461 OS::PrintErr("InsertCallAt: %" Px " to %" Px " for %s\n", pc, | 1461 OS::PrintErr("InsertCallAt: %" Px " to %" Px " for %s\n", pc, |
| 1462 lazy_deopt_jump, name.ToCString()); | 1462 lazy_deopt_jump, name.ToCString()); |
| 1463 } | 1463 } |
| 1464 // Mark code as dead (do not GC its embedded objects). | 1464 // Mark code as dead (do not GC its embedded objects). |
| 1465 optimized_code.set_is_alive(false); | 1465 optimized_code.set_is_alive(false); |
| 1466 } | 1466 } |
| 1467 | 1467 |
| 1468 | 1468 |
| 1469 // Currently checks only that all optimized frames have kDeoptIndex | 1469 // Currently checks only that all optimized frames have kDeoptIndex |
| 1470 // and unoptimized code has the kDeoptAfter. | 1470 // and unoptimized code has the kDeoptAfter. |
| 1471 void DeoptimizeAll() { | 1471 void DeoptimizeFunctionsOnStack() { |
| 1472 DartFrameIterator iterator; | 1472 DartFrameIterator iterator; |
| 1473 StackFrame* frame = iterator.NextFrame(); | 1473 StackFrame* frame = iterator.NextFrame(); |
| 1474 Code& optimized_code = Code::Handle(); | 1474 Code& optimized_code = Code::Handle(); |
| 1475 while (frame != NULL) { | 1475 while (frame != NULL) { |
| 1476 optimized_code = frame->LookupDartCode(); | 1476 optimized_code = frame->LookupDartCode(); |
| 1477 if (optimized_code.is_optimized()) { | 1477 if (optimized_code.is_optimized()) { |
| 1478 DeoptimizeAt(optimized_code, frame->pc()); | 1478 DeoptimizeAt(optimized_code, frame->pc()); |
| 1479 } | 1479 } |
| 1480 frame = iterator.NextFrame(); | 1480 frame = iterator.NextFrame(); |
| 1481 } | 1481 } |
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| 1673 const intptr_t elm_size = old_data.ElementSizeInBytes(); | 1673 const intptr_t elm_size = old_data.ElementSizeInBytes(); |
| 1674 const TypedData& new_data = | 1674 const TypedData& new_data = |
| 1675 TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld)); | 1675 TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld)); |
| 1676 TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size); | 1676 TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size); |
| 1677 typed_data_cell.SetAt(0, new_data); | 1677 typed_data_cell.SetAt(0, new_data); |
| 1678 arguments.SetReturn(new_data); | 1678 arguments.SetReturn(new_data); |
| 1679 } | 1679 } |
| 1680 | 1680 |
| 1681 | 1681 |
| 1682 } // namespace dart | 1682 } // namespace dart |
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