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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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_COALESCED_LIVE_RANGES_H_ | 5 #ifndef V8_COALESCED_LIVE_RANGES_H_ |
6 #define V8_COALESCED_LIVE_RANGES_H_ | 6 #define V8_COALESCED_LIVE_RANGES_H_ |
7 | 7 |
8 #include "src/compiler/register-allocator.h" | 8 #include "src/compiler/register-allocator.h" |
9 #include "src/zone-containers.h" | 9 #include "src/zone-containers.h" |
10 | 10 |
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82 return AllocatedInterval(pos, LifetimePosition::Invalid(), nullptr); | 82 return AllocatedInterval(pos, LifetimePosition::Invalid(), nullptr); |
83 } | 83 } |
84 | 84 |
85 // Intersection utilities. | 85 // Intersection utilities. |
86 static bool Intersects(LifetimePosition a_start, LifetimePosition a_end, | 86 static bool Intersects(LifetimePosition a_start, LifetimePosition a_end, |
87 LifetimePosition b_start, LifetimePosition b_end) { | 87 LifetimePosition b_start, LifetimePosition b_end) { |
88 return a_start < b_end && b_start < a_end; | 88 return a_start < b_end && b_start < a_end; |
89 } | 89 } |
90 | 90 |
91 bool QueryIntersectsAllocatedInterval() const { | 91 bool QueryIntersectsAllocatedInterval() const { |
92 DCHECK(query_ != nullptr); | 92 DCHECK_NOT_NULL(query_); |
93 return pos_ != intervals_->end() && | 93 return pos_ != intervals_->end() && |
94 Intersects(query_->start(), query_->end(), pos_->start_, pos_->end_); | 94 Intersects(query_->start(), query_->end(), pos_->start_, pos_->end_); |
95 } | 95 } |
96 | 96 |
97 void Invalidate() { | 97 void Invalidate() { |
98 query_ = nullptr; | 98 query_ = nullptr; |
99 pos_ = intervals_->end(); | 99 pos_ = intervals_->end(); |
100 } | 100 } |
101 | 101 |
102 const UseInterval* query_; | 102 const UseInterval* query_; |
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149 | 149 |
150 IntervalStore intervals_; | 150 IntervalStore intervals_; |
151 DISALLOW_COPY_AND_ASSIGN(CoalescedLiveRanges); | 151 DISALLOW_COPY_AND_ASSIGN(CoalescedLiveRanges); |
152 }; | 152 }; |
153 | 153 |
154 | 154 |
155 } // namespace compiler | 155 } // namespace compiler |
156 } // namespace internal | 156 } // namespace internal |
157 } // namespace v8 | 157 } // namespace v8 |
158 #endif // V8_COALESCED_LIVE_RANGES_H_ | 158 #endif // V8_COALESCED_LIVE_RANGES_H_ |
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