diff options
Diffstat (limited to 'include/llvm/ADT/APInt.h')
| -rw-r--r-- | include/llvm/ADT/APInt.h | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h index e68e579..707e0db 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> @@ -160,7 +161,7 @@ class APInt { /// not assume that the string is well-formed and (2) grows the /// result to hold the input. /// - /// @param radix 2, 8, 10, or 16 + /// @param radix 2, 8, 10, 16, or 36 /// @brief Convert a char array into an APInt void fromString(unsigned numBits, StringRef str, uint8_t radix); @@ -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); @@ -230,19 +234,26 @@ 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 /// interpretation stops when the first character that is not suitable for the /// radix is encountered, or the end of the string. Acceptable radix values - /// are 2, 8, 10 and 16. It is an error for the value implied by the string to - /// require more bits than numBits. + /// are 2, 8, 10, 16, and 36. It is an error for the value implied by the + /// string to require more bits than numBits. /// /// @param numBits the bit width of the constructed APInt /// @param str the string to be interpreted @@ -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. @@ -1245,13 +1257,13 @@ public: bool formatAsCLiteral = false) const; /// Considers the APInt to be unsigned and converts it into a string in the - /// radix given. The radix can be 2, 8, 10 or 16. + /// radix given. The radix can be 2, 8, 10 16, or 36. void toStringUnsigned(SmallVectorImpl<char> &Str, unsigned Radix = 10) const { toString(Str, Radix, false, false); } /// Considers the APInt to be signed and converts it into a string in the - /// radix given. The radix can be 2, 8, 10 or 16. + /// radix given. The radix can be 2, 8, 10, 16, or 36. void toStringSigned(SmallVectorImpl<char> &Str, unsigned Radix = 10) const { toString(Str, Radix, true, false); } |
