ScaledNumber.h File Reference
#include "llvm/Support/Compiler.h"#include "llvm/Support/MathExtras.h"#include <algorithm>#include <cstdint>#include <limits>#include <string>#include <tuple>#include <utility>Go to the source code of this file.
Classes | |
| class | llvm::ScaledNumberBase |
| class | llvm::ScaledNumber< DigitsT > |
| Simple representation of a scaled number. More... | |
Namespaces | |
| namespace | llvm |
| This is an optimization pass for GlobalISel generic memory operations. | |
| namespace | llvm::ScaledNumbers |
Macros | |
| #define | SCALED_NUMBER_BOP(op, base) |
| #define | SCALED_NUMBER_COMPARE_TO_TYPE(op, T1, T2) |
| #define | SCALED_NUMBER_COMPARE_TO(op) |
Functions | |
| template<class DigitsT> | |
| int | llvm::ScaledNumbers::getWidth () |
| Get the width of a number. | |
| template<class DigitsT> | |
| std::pair< DigitsT, int16_t > | llvm::ScaledNumbers::getRounded (DigitsT Digits, int16_t Scale, bool ShouldRound) |
| Conditionally round up a scaled number. | |
| std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::getRounded32 (uint32_t Digits, int16_t Scale, bool ShouldRound) |
| Convenience helper for 32-bit rounding. | |
| std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::getRounded64 (uint64_t Digits, int16_t Scale, bool ShouldRound) |
| Convenience helper for 64-bit rounding. | |
| template<class DigitsT> | |
| std::pair< DigitsT, int16_t > | llvm::ScaledNumbers::getAdjusted (uint64_t Digits, int16_t Scale=0) |
| Adjust a 64-bit scaled number down to the appropriate width. | |
| std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::getAdjusted32 (uint64_t Digits, int16_t Scale=0) |
| Convenience helper for adjusting to 32 bits. | |
| std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::getAdjusted64 (uint64_t Digits, int16_t Scale=0) |
| Convenience helper for adjusting to 64 bits. | |
| LLVM_ABI std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::multiply64 (uint64_t LHS, uint64_t RHS) |
| Multiply two 64-bit integers to create a 64-bit scaled number. | |
| template<class DigitsT> | |
| std::pair< DigitsT, int16_t > | llvm::ScaledNumbers::getProduct (DigitsT LHS, DigitsT RHS) |
| Multiply two 32-bit integers to create a 32-bit scaled number. | |
| std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::getProduct32 (uint32_t LHS, uint32_t RHS) |
| Convenience helper for 32-bit product. | |
| std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::getProduct64 (uint64_t LHS, uint64_t RHS) |
| Convenience helper for 64-bit product. | |
| LLVM_ABI std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::divide64 (uint64_t Dividend, uint64_t Divisor) |
| Divide two 64-bit integers to create a 64-bit scaled number. | |
| LLVM_ABI std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::divide32 (uint32_t Dividend, uint32_t Divisor) |
| Divide two 32-bit integers to create a 32-bit scaled number. | |
| template<class DigitsT> | |
| std::pair< DigitsT, int16_t > | llvm::ScaledNumbers::getQuotient (DigitsT Dividend, DigitsT Divisor) |
| Divide two 32-bit numbers to create a 32-bit scaled number. | |
| std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::getQuotient32 (uint32_t Dividend, uint32_t Divisor) |
| Convenience helper for 32-bit quotient. | |
| std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::getQuotient64 (uint64_t Dividend, uint64_t Divisor) |
| Convenience helper for 64-bit quotient. | |
| template<class DigitsT> | |
| std::pair< int32_t, int > | llvm::ScaledNumbers::getLgImpl (DigitsT Digits, int16_t Scale) |
| Implementation of getLg() and friends. | |
| template<class DigitsT> | |
| int32_t | llvm::ScaledNumbers::getLg (DigitsT Digits, int16_t Scale) |
| Get the lg (rounded) of a scaled number. | |
| template<class DigitsT> | |
| int32_t | llvm::ScaledNumbers::getLgFloor (DigitsT Digits, int16_t Scale) |
| Get the lg floor of a scaled number. | |
| template<class DigitsT> | |
| int32_t | llvm::ScaledNumbers::getLgCeiling (DigitsT Digits, int16_t Scale) |
| Get the lg ceiling of a scaled number. | |
| LLVM_ABI int | llvm::ScaledNumbers::compareImpl (uint64_t L, uint64_t R, int ScaleDiff) |
| Implementation for comparing scaled numbers. | |
| template<class DigitsT> | |
| int | llvm::ScaledNumbers::compare (DigitsT LDigits, int16_t LScale, DigitsT RDigits, int16_t RScale) |
| Compare two scaled numbers. | |
| template<class DigitsT> | |
| int16_t | llvm::ScaledNumbers::matchScales (DigitsT &LDigits, int16_t &LScale, DigitsT &RDigits, int16_t &RScale) |
| Match scales of two numbers. | |
| template<class DigitsT> | |
| std::pair< DigitsT, int16_t > | llvm::ScaledNumbers::getSum (DigitsT LDigits, int16_t LScale, DigitsT RDigits, int16_t RScale) |
| Get the sum of two scaled numbers. | |
| std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::getSum32 (uint32_t LDigits, int16_t LScale, uint32_t RDigits, int16_t RScale) |
| Convenience helper for 32-bit sum. | |
| std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::getSum64 (uint64_t LDigits, int16_t LScale, uint64_t RDigits, int16_t RScale) |
| Convenience helper for 64-bit sum. | |
| template<class DigitsT> | |
| std::pair< DigitsT, int16_t > | llvm::ScaledNumbers::getDifference (DigitsT LDigits, int16_t LScale, DigitsT RDigits, int16_t RScale) |
| Get the difference of two scaled numbers. | |
| std::pair< uint32_t, int16_t > | llvm::ScaledNumbers::getDifference32 (uint32_t LDigits, int16_t LScale, uint32_t RDigits, int16_t RScale) |
| Convenience helper for 32-bit difference. | |
| std::pair< uint64_t, int16_t > | llvm::ScaledNumbers::getDifference64 (uint64_t LDigits, int16_t LScale, uint64_t RDigits, int16_t RScale) |
| Convenience helper for 64-bit difference. | |
| template<class DigitsT> | |
| ScaledNumber< DigitsT > | llvm::operator<< (const ScaledNumber< DigitsT > &L, int16_t Shift) |
| template<class DigitsT> | |
| ScaledNumber< DigitsT > | llvm::operator>> (const ScaledNumber< DigitsT > &L, int16_t Shift) |
| template<class DigitsT> | |
| raw_ostream & | llvm::operator<< (raw_ostream &OS, const ScaledNumber< DigitsT > &X) |
Variables | |
| const int32_t | llvm::ScaledNumbers::MaxScale = 16383 |
| Maximum scale; same as APFloat for easy debug printing. | |
| const int32_t | llvm::ScaledNumbers::MinScale = -16382 |
| Maximum scale; same as APFloat for easy debug printing. | |
Macro Definition Documentation
◆ SCALED_NUMBER_BOP
| #define SCALED_NUMBER_BOP | ( | op, | |
| base ) |
Value:
template <class DigitsT> \
const ScaledNumber<DigitsT> &R) { \
return ScaledNumber<DigitsT>(L) base R; \
}
#define op(i)
Definition at line 721 of file ScaledNumber.h.
◆ SCALED_NUMBER_COMPARE_TO
| #define SCALED_NUMBER_COMPARE_TO | ( | op | ) |
Value:
SCALED_NUMBER_COMPARE_TO_TYPE(op, int64_t, int64_t) \
SCALED_NUMBER_COMPARE_TO_TYPE(op, int32_t, int64_t)
#define SCALED_NUMBER_COMPARE_TO_TYPE(op, T1, T2)
Definition ScaledNumber.h:750
Definition at line 759 of file ScaledNumber.h.
◆ SCALED_NUMBER_COMPARE_TO_TYPE
Value:
template <class DigitsT> \
return L.compareTo(T2(R)) op 0; \
} \
template <class DigitsT> \
return 0 op R.compareTo(T2(L)); \
}
Definition at line 750 of file ScaledNumber.h.
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