diff options
Diffstat (limited to 'runtime/imtable.h')
| -rw-r--r-- | runtime/imtable.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/runtime/imtable.h b/runtime/imtable.h index 5db3d07ec2..df10cda816 100644 --- a/runtime/imtable.h +++ b/runtime/imtable.h @@ -17,6 +17,7 @@ #ifndef ART_RUNTIME_IMTABLE_H_ #define ART_RUNTIME_IMTABLE_H_ +#include "base/bit_utils.h" #include "base/casts.h" #include "base/enums.h" #include "base/locks.h" @@ -34,6 +35,10 @@ class ImTable { // (non-marker) interfaces. // When this value changes, old images become incompatible, so image file version must change too. static constexpr size_t kSize = 43; + // Default methods cannot store the imt_index, so instead we make its IMT index depend on the + // method_index and mask it with the closest power of 2 of kSize - 1. This + // is to simplify fetching it in the interpreter. + static constexpr size_t kSizeTruncToPowerOfTwo = TruncToPowerOfTwo(kSize); uint8_t* AddressOfElement(size_t index, PointerSize pointer_size) { return reinterpret_cast<uint8_t*>(this) + OffsetOfElement(index, pointer_size); |