LLVM: lib/Support/APInt.cpp File Reference (original) (raw)
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| Functions | |
|---|---|
| static uint64_t * | getClearedMemory (unsigned numWords) |
| A utility function for allocating memory, checking for allocation failures, and ensuring the contents are zeroed. | |
| static uint64_t * | getMemory (unsigned numWords) |
| A utility function for allocating memory and checking for allocation failure. | |
| static unsigned | getDigit (char cdigit, uint8_t radix) |
| A utility function that converts a character to a digit. | |
| static void | tcComplement (APInt::WordType *dst, unsigned parts) |
| static unsigned | rotateModulo (unsigned BitWidth, const APInt &rotateAmt) |
| static void | KnuthDiv (uint32_t *u, uint32_t *v, uint32_t *q, uint32_t *r, unsigned m, unsigned n) |
| Implementation of Knuth's Algorithm D (Division of nonnegative integers) from "Art of Computer Programming, Volume 2", section 4.3.1, p. | |
| static APInt::WordType | lowBitMask (unsigned bits) |
| static APInt::WordType | lowHalf (APInt::WordType part) |
| Returns the value of the lower half of PART. | |
| static APInt::WordType | highHalf (APInt::WordType part) |
| Returns the value of the upper half of PART. | |
◆ DEBUG_KNUTH
| #define DEBUG_KNUTH | ( | | X | ) | do {} while(false) | | -------------------- | - | | ------------------------------------------------------------------ | - | ------------------------------------------------------------------------------- |
◆ DEBUG_TYPE
#define DEBUG_TYPE "apint"
◆ getClearedMemory()
A utility function for allocating memory, checking for allocation failures, and ensuring the contents are zeroed.
Definition at line 36 of file APInt.cpp.
◆ getDigit()
A utility function that converts a character to a digit.
Definition at line 47 of file APInt.cpp.
◆ getMemory()
◆ highHalf()
◆ KnuthDiv()
Implementation of Knuth's Algorithm D (Division of nonnegative integers) from "Art of Computer Programming, Volume 2", section 4.3.1, p.
- The variables here have the same names as in the algorithm. Comments explain the algorithm and any deviation from it.
Definition at line 1264 of file APInt.cpp.
References assert(), llvm::countl_zero(), llvm::dbgs(), DEBUG_KNUTH, llvm::Hi_32(), isNeg(), llvm::Lo_32(), and llvm::Make_64().