diff options
| -rw-r--r-- | include/llvm/DerivedTypes.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/llvm/DerivedTypes.h b/include/llvm/DerivedTypes.h index 29d7ede823..dadbdcc3ad 100644 --- a/include/llvm/DerivedTypes.h +++ b/include/llvm/DerivedTypes.h @@ -106,9 +106,15 @@ public: /// that can be set by an unsigned version of this type. This is 0xFF for /// sbyte/ubyte, 0xFFFF for shorts, etc. uint64_t getBitMask() const { - return ~uint64_t(0UL) >> (64-getPrimitiveSizeInBits()); + return ~uint64_t(0UL) >> (64-getBitWidth()); } + /// getSignBit - Return a uint64_t with just the most significant bit set (the + /// sign bit, if the value is treated as a signed number). + uint64_t getSignBit() const { + return 1ULL << (getBitWidth()-1); + } + /// For example, this is 0xFF for an 8 bit integer, 0xFFFF for i16, etc. /// @returns a bit mask with ones set for all the bits of this type. /// @brief Get a bit mask for this type. |