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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #ifndef V8_COMPILER_FRAME_H_ | 5 #ifndef V8_COMPILER_FRAME_H_ |
6 #define V8_COMPILER_FRAME_H_ | 6 #define V8_COMPILER_FRAME_H_ |
7 | 7 |
8 #include "src/bit-vector.h" | 8 #include "src/bit-vector.h" |
9 #include "src/frames.h" | 9 #include "src/frames.h" |
10 | 10 |
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91 | 91 |
92 void SetAllocatedDoubleRegisters(BitVector* regs) { | 92 void SetAllocatedDoubleRegisters(BitVector* regs) { |
93 DCHECK(allocated_double_registers_ == nullptr); | 93 DCHECK(allocated_double_registers_ == nullptr); |
94 allocated_double_registers_ = regs; | 94 allocated_double_registers_ = regs; |
95 } | 95 } |
96 | 96 |
97 bool DidAllocateDoubleRegisters() const { | 97 bool DidAllocateDoubleRegisters() const { |
98 return !allocated_double_registers_->IsEmpty(); | 98 return !allocated_double_registers_->IsEmpty(); |
99 } | 99 } |
100 | 100 |
101 void AlignSavedCalleeRegisterSlots(int alignment = kDoubleSize) { | |
102 int alignment_slots = alignment / kPointerSize; | |
103 int delta = alignment_slots - (frame_slot_count_ & (alignment_slots - 1)); | |
104 if (delta != alignment_slots) { | |
105 frame_slot_count_ += delta; | |
106 } | |
107 spill_slot_count_ += delta; | |
108 } | |
109 | |
110 void AllocateSavedCalleeRegisterSlots(int count) { | 101 void AllocateSavedCalleeRegisterSlots(int count) { |
111 frame_slot_count_ += count; | 102 frame_slot_count_ += count; |
112 } | 103 } |
113 | 104 |
114 int AllocateSpillSlot(int width) { | 105 int AllocateSpillSlot(int width) { |
115 int frame_slot_count_before = frame_slot_count_; | 106 int frame_slot_count_before = frame_slot_count_; |
116 int slot = AllocateAlignedFrameSlot(width); | 107 int slot = AllocateAlignedFrameSlot(width); |
117 spill_slot_count_ += (frame_slot_count_ - frame_slot_count_before); | 108 spill_slot_count_ += (frame_slot_count_ - frame_slot_count_before); |
118 return slot; | 109 return slot; |
119 } | 110 } |
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223 const Frame* const frame_; | 214 const Frame* const frame_; |
224 bool access_frame_with_fp_; | 215 bool access_frame_with_fp_; |
225 int sp_delta_; | 216 int sp_delta_; |
226 bool has_frame_; | 217 bool has_frame_; |
227 }; | 218 }; |
228 } // namespace compiler | 219 } // namespace compiler |
229 } // namespace internal | 220 } // namespace internal |
230 } // namespace v8 | 221 } // namespace v8 |
231 | 222 |
232 #endif // V8_COMPILER_FRAME_H_ | 223 #endif // V8_COMPILER_FRAME_H_ |
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