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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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/compiler.h" | 5 #include "vm/compiler.h" |
6 | 6 |
7 #include "vm/assembler.h" | 7 #include "vm/assembler.h" |
8 #include "vm/ast_printer.h" | 8 #include "vm/ast_printer.h" |
9 #include "vm/code_generator.h" | 9 #include "vm/code_generator.h" |
10 #include "vm/code_patcher.h" | 10 #include "vm/code_patcher.h" |
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50 ASSERT(arguments.Count() == kCompileFunctionRuntimeEntry.argument_count()); | 50 ASSERT(arguments.Count() == kCompileFunctionRuntimeEntry.argument_count()); |
51 const Function& function = Function::CheckedHandle(arguments.At(0)); | 51 const Function& function = Function::CheckedHandle(arguments.At(0)); |
52 ASSERT(!function.HasCode()); | 52 ASSERT(!function.HasCode()); |
53 const Error& error = Error::Handle(Compiler::CompileFunction(function)); | 53 const Error& error = Error::Handle(Compiler::CompileFunction(function)); |
54 if (!error.IsNull()) { | 54 if (!error.IsNull()) { |
55 Exceptions::PropagateError(error); | 55 Exceptions::PropagateError(error); |
56 } | 56 } |
57 } | 57 } |
58 | 58 |
59 | 59 |
60 // Returns an array indexed by deopt id, containing the extracted ICData. | |
61 static RawArray* ExtractTypeFeedbackArray(const Code& code) { | |
62 ASSERT(!code.IsNull() && !code.is_optimized()); | |
63 GrowableArray<intptr_t> deopt_ids; | |
64 const GrowableObjectArray& ic_data_objs = | |
65 GrowableObjectArray::Handle(GrowableObjectArray::New()); | |
66 const intptr_t max_id = | |
67 code.ExtractIcDataArraysAtCalls(&deopt_ids, ic_data_objs); | |
68 const Array& result = Array::Handle(Array::New(max_id + 1)); | |
69 for (intptr_t i = 0; i < deopt_ids.length(); i++) { | |
70 intptr_t result_index = deopt_ids[i]; | |
71 ASSERT(result.At(result_index) == Object::null()); | |
72 result.SetAt(result_index, Object::Handle(ic_data_objs.At(i))); | |
73 } | |
74 return result.raw(); | |
75 } | |
76 | |
77 | |
78 RawError* Compiler::Compile(const Library& library, const Script& script) { | 60 RawError* Compiler::Compile(const Library& library, const Script& script) { |
79 Isolate* isolate = Isolate::Current(); | 61 Isolate* isolate = Isolate::Current(); |
80 LongJump* base = isolate->long_jump_base(); | 62 LongJump* base = isolate->long_jump_base(); |
81 LongJump jump; | 63 LongJump jump; |
82 isolate->set_long_jump_base(&jump); | 64 isolate->set_long_jump_base(&jump); |
83 if (setjmp(*jump.Set()) == 0) { | 65 if (setjmp(*jump.Set()) == 0) { |
84 if (FLAG_trace_compiler) { | 66 if (FLAG_trace_compiler) { |
85 HANDLESCOPE(isolate); | 67 HANDLESCOPE(isolate); |
86 const String& script_url = String::Handle(script.url()); | 68 const String& script_url = String::Handle(script.url()); |
87 // TODO(iposva): Extract script kind. | 69 // TODO(iposva): Extract script kind. |
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150 ASSERT(!parsed_function.function().HasOptimizedCode()); | 132 ASSERT(!parsed_function.function().HasOptimizedCode()); |
151 // Extract type feedback before the graph is built, as the graph | 133 // Extract type feedback before the graph is built, as the graph |
152 // builder uses it to attach it to nodes. | 134 // builder uses it to attach it to nodes. |
153 // Do not use type feedback to optimize a function that was | 135 // Do not use type feedback to optimize a function that was |
154 // deoptimized too often. | 136 // deoptimized too often. |
155 if (parsed_function.function().deoptimization_counter() < | 137 if (parsed_function.function().deoptimization_counter() < |
156 FLAG_deoptimization_counter_threshold) { | 138 FLAG_deoptimization_counter_threshold) { |
157 const Code& unoptimized_code = | 139 const Code& unoptimized_code = |
158 Code::Handle(parsed_function.function().unoptimized_code()); | 140 Code::Handle(parsed_function.function().unoptimized_code()); |
159 isolate->set_ic_data_array( | 141 isolate->set_ic_data_array( |
160 ExtractTypeFeedbackArray(unoptimized_code)); | 142 unoptimized_code.ExtractTypeFeedbackArray()); |
161 } | 143 } |
162 } | 144 } |
163 | 145 |
164 // Build the flow graph. | 146 // Build the flow graph. |
165 FlowGraphBuilder builder(parsed_function); | 147 FlowGraphBuilder builder(parsed_function); |
166 flow_graph = builder.BuildGraph(FlowGraphBuilder::kNotInlining); | 148 flow_graph = builder.BuildGraph(FlowGraphBuilder::kNotInlining); |
167 | 149 |
168 // Transform to SSA. | 150 // Transform to SSA. |
169 if (optimized) flow_graph->ComputeSSA(0); // Start at virtual register 0. | 151 if (optimized) flow_graph->ComputeSSA(0); // Start at virtual register 0. |
170 | 152 |
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578 result = isolate->object_store()->sticky_error(); | 560 result = isolate->object_store()->sticky_error(); |
579 isolate->object_store()->clear_sticky_error(); | 561 isolate->object_store()->clear_sticky_error(); |
580 isolate->set_long_jump_base(base); | 562 isolate->set_long_jump_base(base); |
581 return result.raw(); | 563 return result.raw(); |
582 } | 564 } |
583 UNREACHABLE(); | 565 UNREACHABLE(); |
584 return Object::null(); | 566 return Object::null(); |
585 } | 567 } |
586 | 568 |
587 } // namespace dart | 569 } // namespace dart |
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