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Side by Side Diff: runtime/vm/deopt_instructions.h

Issue 1192103004: VM: New calling convention for generated code. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: fixed comments Created 5 years, 3 months ago
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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 #ifndef VM_DEOPT_INSTRUCTIONS_H_ 5 #ifndef VM_DEOPT_INSTRUCTIONS_H_
6 #define VM_DEOPT_INSTRUCTIONS_H_ 6 #define VM_DEOPT_INSTRUCTIONS_H_
7 7
8 #include "vm/allocation.h" 8 #include "vm/allocation.h"
9 #include "vm/assembler.h" 9 #include "vm/assembler.h"
10 #include "vm/code_generator.h" 10 #include "vm/code_generator.h"
(...skipping 16 matching lines...) Expand all
27 public: 27 public:
28 enum DestFrameOptions { 28 enum DestFrameOptions {
29 kDestIsOriginalFrame, // Replace the original frame with deopt frame. 29 kDestIsOriginalFrame, // Replace the original frame with deopt frame.
30 kDestIsAllocated // Write deopt frame to a buffer. 30 kDestIsAllocated // Write deopt frame to a buffer.
31 }; 31 };
32 32
33 DeoptContext(const StackFrame* frame, 33 DeoptContext(const StackFrame* frame,
34 const Code& code, 34 const Code& code,
35 DestFrameOptions dest_options, 35 DestFrameOptions dest_options,
36 fpu_register_t* fpu_registers, 36 fpu_register_t* fpu_registers,
37 intptr_t* cpu_registers); 37 intptr_t* cpu_registers,
38 bool is_lazy_deopt);
38 virtual ~DeoptContext(); 39 virtual ~DeoptContext();
39 40
40 // Returns the offset of the dest fp from the dest sp. Used in 41 // Returns the offset of the dest fp from the dest sp. Used in
41 // runtime code to adjust the stack size before deoptimization. 42 // runtime code to adjust the stack size before deoptimization.
42 intptr_t DestStackAdjustment() const; 43 intptr_t DestStackAdjustment() const;
43 44
44 intptr_t* GetSourceFrameAddressAt(intptr_t index) const { 45 intptr_t* GetSourceFrameAddressAt(intptr_t index) const {
45 ASSERT(source_frame_ != NULL); 46 ASSERT(source_frame_ != NULL);
46 ASSERT((0 <= index) && (index < source_frame_size_)); 47 ASSERT((0 <= index) && (index < source_frame_size_));
47 return &source_frame_[index]; 48 return &source_frame_[index];
(...skipping 39 matching lines...) Expand 10 before | Expand all | Expand 10 after
87 } 88 }
88 89
89 Thread* thread() const { return thread_; } 90 Thread* thread() const { return thread_; }
90 Zone* zone() const { return thread_->zone(); } 91 Zone* zone() const { return thread_->zone(); }
91 92
92 intptr_t source_frame_size() const { return source_frame_size_; } 93 intptr_t source_frame_size() const { return source_frame_size_; }
93 intptr_t dest_frame_size() const { return dest_frame_size_; } 94 intptr_t dest_frame_size() const { return dest_frame_size_; }
94 95
95 RawCode* code() const { return code_; } 96 RawCode* code() const { return code_; }
96 97
98 bool is_lazy_deopt() const { return is_lazy_deopt_; }
99
97 ICData::DeoptReasonId deopt_reason() const { return deopt_reason_; } 100 ICData::DeoptReasonId deopt_reason() const { return deopt_reason_; }
98 bool HasDeoptFlag(ICData::DeoptFlags flag) { 101 bool HasDeoptFlag(ICData::DeoptFlags flag) {
99 return (deopt_flags_ & flag) != 0; 102 return (deopt_flags_ & flag) != 0;
100 } 103 }
101 104
102 RawTypedData* deopt_info() const { return deopt_info_; } 105 RawTypedData* deopt_info() const { return deopt_info_; }
103 106
104 // Fills the destination frame but defers materialization of 107 // Fills the destination frame but defers materialization of
105 // objects. 108 // objects.
106 void FillDestFrame(); 109 void FillDestFrame();
(...skipping 114 matching lines...) Expand 10 before | Expand all | Expand 10 after
221 uint32_t deopt_flags_; 224 uint32_t deopt_flags_;
222 intptr_t caller_fp_; 225 intptr_t caller_fp_;
223 Thread* thread_; 226 Thread* thread_;
224 TimelineEvent* timeline_event_; 227 TimelineEvent* timeline_event_;
225 228
226 DeferredSlot* deferred_slots_; 229 DeferredSlot* deferred_slots_;
227 230
228 intptr_t deferred_objects_count_; 231 intptr_t deferred_objects_count_;
229 DeferredObject** deferred_objects_; 232 DeferredObject** deferred_objects_;
230 233
234 const bool is_lazy_deopt_;
235
231 DISALLOW_COPY_AND_ASSIGN(DeoptContext); 236 DISALLOW_COPY_AND_ASSIGN(DeoptContext);
232 }; 237 };
233 238
234 239
235 240
236 // Represents one deopt instruction, e.g, setup return address, store object, 241 // Represents one deopt instruction, e.g, setup return address, store object,
237 // store register, etc. The target is defined by instruction's position in 242 // store register, etc. The target is defined by instruction's position in
238 // the deopt-info array. 243 // the deopt-info array.
239 class DeoptInstr : public ZoneAllocated { 244 class DeoptInstr : public ZoneAllocated {
240 public: 245 public:
(...skipping 294 matching lines...) Expand 10 before | Expand all | Expand 10 after
535 class ReasonField : public BitField<ICData::DeoptReasonId, 0, 8> { }; 540 class ReasonField : public BitField<ICData::DeoptReasonId, 0, 8> { };
536 class FlagsField : public BitField<uint32_t, 8, 8> { }; 541 class FlagsField : public BitField<uint32_t, 8, 8> { };
537 542
538 private: 543 private:
539 static const intptr_t kEntrySize = 3; 544 static const intptr_t kEntrySize = 3;
540 }; 545 };
541 546
542 } // namespace dart 547 } // namespace dart
543 548
544 #endif // VM_DEOPT_INSTRUCTIONS_H_ 549 #endif // VM_DEOPT_INSTRUCTIONS_H_
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