diff options
| -rw-r--r-- | include/llvm/ADT/APInt.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h index 51b595b456..39ce504aa9 100644 --- a/include/llvm/ADT/APInt.h +++ b/include/llvm/ADT/APInt.h @@ -446,6 +446,29 @@ public: return BitWidth - countLeadingZeros(); } + /// This function returns the number of active words in the value of this + /// APInt. This is used in conjunction with getActiveData to extract the raw + /// value of the APInt. + inline uint32_t getActiveWords() const { + return whichWord(getActiveBits()-1); + } + + /// This function returns a pointer to the internal storage of the APInt. + /// This is useful for writing out the APInt in binary form without any + /// conversions. + inline const uint64_t* getRawData() const { + if (isSingleWord()) + return &VAL; + return &pVal[0]; + } + + /// Computes the minimum bit width for this APInt while considering it to be + /// a signed (and probably negative) value. If the value is not negative, + /// this function returns the same value as getActiveBits(). Otherwise, it + /// returns the smallest bit width that will retain the negative value. For + /// example, -1 can be written as 0b1 or 0xFFFFFFFFFF. 0b1 is shorter and so + /// for -1, this function will always return 1. + /// @brief Get the minimum bit size for this signed APInt inline uint32_t getMinSignedBits() const { if (isNegative()) return BitWidth - countLeadingOnes() + 1; @@ -658,6 +681,14 @@ public: } }; +inline bool operator==(uint64_t V1, const APInt& V2) { + return V2 == V1; +} + +inline bool operator!=(uint64_t V1, const APInt& V2) { + return V2 != V1; +} + namespace APIntOps { /// @brief Check if the specified APInt has a N-bits integer value. |