6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-09-27 16:17:17 +00:00
Code Issues Projects Releases Wiki Activity

Make some minor improvements to APInt:

Browse Source 
1. Make all the operators use uppercase
2. Rename APIntRoundToDouble method just RoundToDouble, the APInt is
   redundant.
3. Turn the class on for compilation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34253 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2007-02-13 22:41:58 +00:00
parent 36e37d2944
commit db3faa64ee
2 changed files with 48 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
lib/Support/APInt.cpp
View File

@@ -14,7 +14,6 @@
#include "llvm/ADT/APInt.h"
#if 0
#include "llvm/DerivedTypes.h"
#include "llvm/Support/MathExtras.h"
#include <cstring>
@@ -878,12 +877,12 @@ APInt APInt::getNullValue(unsigned numBits) {
/// HiBits - This function returns the high "numBits" bits of this APInt.
APInt APInt::HiBits(unsigned numBits) const {
return APIntOps::lshr(*this, BitsNum - numBits);
return APIntOps::LShr(*this, BitsNum - numBits);
}
/// LoBits - This function returns the low "numBits" bits of this APInt.
APInt APInt::LoBits(unsigned numBits) const {
return APIntOps::lshr(APIntOps::shl(*this, BitsNum - numBits),
return APIntOps::LShr(APIntOps::Shl(*this, BitsNum - numBits),
BitsNum - numBits);
}
@@ -949,7 +948,7 @@ APInt llvm::APIntOps::GreatestCommonDivisor(const APInt& API1,
APInt A = API1, B = API2;
while (!!B) {
APInt T = B;
B = APIntOps::urem(A, B);
B = APIntOps::URem(A, B);
A = T;
}
return A;
@@ -972,18 +971,18 @@ APInt llvm::APIntOps::DoubleRoundToAPInt(double Double) {
return isNeg ? -APInt(mantissa >> (52 - exp)) :
APInt(mantissa >> (52 - exp));
APInt Tmp(mantissa, exp + 1);
Tmp = Tmp.shl(exp - 52);
Tmp = Tmp.Shl(exp - 52);
return isNeg ? -Tmp : Tmp;
}
/// APIntRoundToDouble - This function convert this APInt to a double.
/// RoundToDouble - This function convert this APInt to a double.
/// The layout for double is as following (IEEE Standard 754):
/// --------------------------------------
/// | Sign Exponent Fraction Bias |
/// |-------------------------------------- |
/// | 1[63] 11[62-52] 52[51-00] 1023 |
/// --------------------------------------
double APInt::APIntRoundToDouble(bool isSigned) const {
double APInt::RoundToDouble(bool isSigned) const {
bool isNeg = isSigned ? (*this)[BitsNum-1] : false;
APInt Tmp(isNeg ? -(*this) : (*this));
if (Tmp.isSingleWord())
@@ -1020,7 +1019,7 @@ double APInt::APIntRoundToDouble(bool isSigned) const {
/// Arithmetic right-shift this APInt by shiftAmt.
/// @brief Arithmetic right-shift function.
APInt APInt::ashr(unsigned shiftAmt) const {
APInt APInt::AShr(unsigned shiftAmt) const {
APInt API(*this);
if (API.isSingleWord())
API.VAL = (((int64_t(API.VAL) << (64 - API.BitsNum)) >> (64 - API.BitsNum))
@@ -1046,7 +1045,7 @@ APInt APInt::ashr(unsigned shiftAmt) const {
/// Logical right-shift this APInt by shiftAmt.
/// @brief Logical right-shift function.
APInt APInt::lshr(unsigned shiftAmt) const {
APInt APInt::LShr(unsigned shiftAmt) const {
APInt API(*this);
if (API.isSingleWord())
API.VAL >>= shiftAmt;
@@ -1065,7 +1064,7 @@ APInt APInt::lshr(unsigned shiftAmt) const {
/// Left-shift this APInt by shiftAmt.
/// @brief Left-shift function.
APInt APInt::shl(unsigned shiftAmt) const {
APInt APInt::Shl(unsigned shiftAmt) const {
APInt API(*this);
if (API.isSingleWord())
API.VAL <<= shiftAmt;
@@ -1089,7 +1088,7 @@ APInt APInt::shl(unsigned shiftAmt) const {
/// Unsigned divide this APInt by APInt RHS.
/// @brief Unsigned division function for APInt.
APInt APInt::udiv(const APInt& RHS) const {
APInt APInt::UDiv(const APInt& RHS) const {
APInt API(*this);
unsigned first = RHS.getNumWords() * APInt::APINT_BITS_PER_WORD -
RHS.CountLeadingZeros();
@@ -1134,7 +1133,7 @@ APInt APInt::udiv(const APInt& RHS) const {
/// Unsigned remainder operation on APInt.
/// @brief Function for unsigned remainder operation.
APInt APInt::urem(const APInt& RHS) const {
APInt APInt::URem(const APInt& RHS) const {
APInt API(*this);
unsigned first = RHS.getNumWords() * APInt::APINT_BITS_PER_WORD -
RHS.CountLeadingZeros();
@@ -1176,6 +1175,3 @@ APInt APInt::urem(const APInt& RHS) const {
}
return API;
}
#endif