diff options
Diffstat (limited to 'include/llvm/ADT/APInt.h')
-rw-r--r-- | include/llvm/ADT/APInt.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h index e68e579..58c9837 100644 --- a/include/llvm/ADT/APInt.h +++ b/include/llvm/ADT/APInt.h @@ -15,6 +15,7 @@ #ifndef LLVM_APINT_H #define LLVM_APINT_H +#include "llvm/ADT/ArrayRef.h" #include "llvm/Support/MathExtras.h" #include <cassert> #include <climits> @@ -176,6 +177,9 @@ class APInt { /// out-of-line slow case for inline constructor void initSlowCase(unsigned numBits, uint64_t val, bool isSigned); + /// shared code between two array constructors + void initFromArray(ArrayRef<uint64_t> array); + /// out-of-line slow case for inline copy constructor void initSlowCase(const APInt& that); @@ -230,12 +234,19 @@ public: clearUnusedBits(); } - /// Note that numWords can be smaller or larger than the corresponding bit - /// width but any extraneous bits will be dropped. + /// Note that bigVal.size() can be smaller or larger than the corresponding + /// bit width but any extraneous bits will be dropped. /// @param numBits the bit width of the constructed APInt - /// @param numWords the number of words in bigVal /// @param bigVal a sequence of words to form the initial value of the APInt /// @brief Construct an APInt of numBits width, initialized as bigVal[]. + APInt(unsigned numBits, ArrayRef<uint64_t> bigVal); + /// Equivalent to APInt(numBits, ArrayRef<uint64_t>(bigVal, numWords)), but + /// deprecated because this constructor is prone to ambiguity with the + /// APInt(unsigned, uint64_t, bool) constructor. + /// + /// If this overload is ever deleted, care should be taken to prevent calls + /// from being incorrectly captured by the APInt(unsigned, uint64_t, bool) + /// constructor. APInt(unsigned numBits, unsigned numWords, const uint64_t bigVal[]); /// This constructor interprets the string \arg str in the given radix. The @@ -342,7 +353,8 @@ public: if (isSingleWord()) return isUIntN(N, VAL); - return APInt(N, getNumWords(), pVal).zext(getBitWidth()) == (*this); + return APInt(N, makeArrayRef(pVal, getNumWords())).zext(getBitWidth()) + == (*this); } /// @brief Check if this APInt has an N-bits signed integer value. |