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author | Neil Booth <neil@daikokuya.co.uk> | 2007-09-26 21:33:42 +0000 |
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committer | Neil Booth <neil@daikokuya.co.uk> | 2007-09-26 21:33:42 +0000 |
commit | 4f88170be09496d5e934c601a83d37941ec9037a (patch) | |
tree | fb0e8dfd667015f0c881e83dd3525054625c04ed | |
parent | ff110265753c19daf0468ee1facf357460497b7e (diff) | |
download | external_llvm-4f88170be09496d5e934c601a83d37941ec9037a.zip external_llvm-4f88170be09496d5e934c601a83d37941ec9037a.tar.gz external_llvm-4f88170be09496d5e934c601a83d37941ec9037a.tar.bz2 |
Whitespace and compiler warning cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42373 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Support/APFloat.cpp | 167 |
1 files changed, 91 insertions, 76 deletions
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp index 348b8ab..278e546 100644 --- a/lib/Support/APFloat.cpp +++ b/lib/Support/APFloat.cpp @@ -113,12 +113,12 @@ namespace { value = digitValue(*p); if(value == -1U) - break; + break; p++; unsignedExponent = unsignedExponent * 10 + value; if(unsignedExponent > 65535) - overflow = true; + overflow = true; } if(exponentAdjustment > 65535 || exponentAdjustment < -65536) @@ -127,10 +127,10 @@ namespace { if(!overflow) { exponent = unsignedExponent; if(negative) - exponent = -exponent; + exponent = -exponent; exponent += exponentAdjustment; if(exponent > 65535 || exponent < -65536) - overflow = true; + overflow = true; } if(overflow) @@ -149,7 +149,7 @@ namespace { if(*p == '.') { *dot = p++; while(*p == '0') - p++; + p++; } return p; @@ -187,8 +187,8 @@ namespace { /* Return the fraction lost were a bignum truncated. */ lostFraction lostFractionThroughTruncation(integerPart *parts, - unsigned int partCount, - unsigned int bits) + unsigned int partCount, + unsigned int bits) { unsigned int lsb; @@ -258,7 +258,7 @@ APFloat::copySignificand(const APFloat &rhs) assert(rhs.partCount() >= partCount()); APInt::tcAssign(significandParts(), rhs.significandParts(), - partCount()); + partCount()); } APFloat & @@ -310,7 +310,7 @@ APFloat::APFloat(const fltSemantics &ourSemantics, integerPart value) } APFloat::APFloat(const fltSemantics &ourSemantics, - fltCategory ourCategory, bool negative) + fltCategory ourCategory, bool negative) { initialize(&ourSemantics); category = ourCategory; @@ -368,7 +368,7 @@ APFloat::significandParts() /* Combine the effect of two lost fractions. */ lostFraction APFloat::combineLostFractions(lostFraction moreSignificant, - lostFraction lessSignificant) + lostFraction lessSignificant) { if(lessSignificant != lfExactlyZero) { if(moreSignificant == lfExactlyZero) @@ -426,7 +426,7 @@ APFloat::subtractSignificand(const APFloat &rhs, integerPart borrow) assert(exponent == rhs.exponent); return APInt::tcSubtract(parts, rhs.significandParts(), borrow, - partCount()); + partCount()); } /* Multiply the significand of the RHS. If ADDEND is non-NULL, add it @@ -435,7 +435,7 @@ APFloat::subtractSignificand(const APFloat &rhs, integerPart borrow) lostFraction APFloat::multiplySignificand(const APFloat &rhs, const APFloat *addend) { - unsigned int omsb; // One, not zero, based MSB. + unsigned int omsb; // One, not zero, based MSB. unsigned int partsCount, newPartsCount, precision; integerPart *lhsSignificand; integerPart scratch[4]; @@ -456,7 +456,7 @@ APFloat::multiplySignificand(const APFloat &rhs, const APFloat *addend) partsCount = partCount(); APInt::tcFullMultiply(fullSignificand, lhsSignificand, - rhs.significandParts(), partsCount); + rhs.significandParts(), partsCount); lost_fraction = lfExactlyZero; omsb = APInt::tcMSB(fullSignificand, newPartsCount) + 1; @@ -473,9 +473,9 @@ APFloat::multiplySignificand(const APFloat &rhs, const APFloat *addend) extendedPrecision = precision + precision - 1; if(omsb != extendedPrecision) { - APInt::tcShiftLeft(fullSignificand, newPartsCount, - extendedPrecision - omsb); - exponent -= extendedPrecision - omsb; + APInt::tcShiftLeft(fullSignificand, newPartsCount, + extendedPrecision - omsb); + exponent -= extendedPrecision - omsb; } /* Create new semantics. */ @@ -660,7 +660,7 @@ APFloat::compareAbsoluteValue(const APFloat &rhs) const significands. */ if(compare == 0) compare = APInt::tcCompare(significandParts(), rhs.significandParts(), - partCount()); + partCount()); if(compare > 0) return cmpGreaterThan; @@ -689,7 +689,7 @@ APFloat::handleOverflow(roundingMode rounding_mode) category = fcNormal; exponent = semantics->maxExponent; APInt::tcSetLeastSignificantBits(significandParts(), partCount(), - semantics->precision); + semantics->precision); return opInexact; } @@ -698,7 +698,7 @@ APFloat::handleOverflow(roundingMode rounding_mode) numbers. */ bool APFloat::roundAwayFromZero(roundingMode rounding_mode, - lostFraction lost_fraction) + lostFraction lost_fraction) { /* NaNs and infinities should not have lost fractions. */ assert(category == fcNormal || category == fcZero); @@ -736,9 +736,9 @@ APFloat::roundAwayFromZero(roundingMode rounding_mode, APFloat::opStatus APFloat::normalize(roundingMode rounding_mode, - lostFraction lost_fraction) + lostFraction lost_fraction) { - unsigned int omsb; /* One, not zero, based MSB. */ + unsigned int omsb; /* One, not zero, based MSB. */ int exponentChange; if(category != fcNormal) @@ -782,9 +782,9 @@ APFloat::normalize(roundingMode rounding_mode, /* Keep OMSB up-to-date. */ if(omsb > (unsigned) exponentChange) - omsb -= (unsigned) exponentChange; + omsb -= (unsigned) exponentChange; else - omsb = 0; + omsb = 0; } } @@ -812,12 +812,12 @@ APFloat::normalize(roundingMode rounding_mode, /* Did the significand increment overflow? */ if(omsb == (unsigned) semantics->precision + 1) { /* Renormalize by incrementing the exponent and shifting our - significand right one. However if we already have the - maximum exponent we overflow to infinity. */ + significand right one. However if we already have the + maximum exponent we overflow to infinity. */ if(exponent == semantics->maxExponent) { - category = fcInfinity; + category = fcInfinity; - return (opStatus) (opOverflow | opInexact); + return (opStatus) (opOverflow | opInexact); } shiftSignificandRight(1); @@ -933,12 +933,12 @@ APFloat::addOrSubtractSignificand(const APFloat &rhs, bool subtract) if (reverse) { carry = temp_rhs.subtractSignificand - (*this, lost_fraction != lfExactlyZero); + (*this, lost_fraction != lfExactlyZero); copySignificand(temp_rhs); sign = !sign; } else { carry = subtractSignificand - (temp_rhs, lost_fraction != lfExactlyZero); + (temp_rhs, lost_fraction != lfExactlyZero); } /* Invert the lost fraction - it was on the RHS and @@ -1082,7 +1082,7 @@ APFloat::copySign(const APFloat &rhs) /* Normalized addition or subtraction. */ APFloat::opStatus APFloat::addOrSubtract(const APFloat &rhs, roundingMode rounding_mode, - bool subtract) + bool subtract) { opStatus fs; @@ -1175,12 +1175,12 @@ APFloat::mod(const APFloat &rhs, roundingMode rounding_mode) int parts = partCount(); integerPart *x = new integerPart[parts]; - fs = V.convertToInteger(x, parts * integerPartWidth, true, + fs = V.convertToInteger(x, parts * integerPartWidth, true, rmNearestTiesToEven); if (fs==opInvalidOp) return fs; - fs = V.convertFromInteger(x, parts * integerPartWidth, true, + fs = V.convertFromInteger(x, parts * integerPartWidth, true, rmNearestTiesToEven); assert(fs==opOK); // should always work @@ -1199,8 +1199,8 @@ APFloat::mod(const APFloat &rhs, roundingMode rounding_mode) /* Normalized fused-multiply-add. */ APFloat::opStatus APFloat::fusedMultiplyAdd(const APFloat &multiplicand, - const APFloat &addend, - roundingMode rounding_mode) + const APFloat &addend, + roundingMode rounding_mode) { opStatus fs; @@ -1305,9 +1305,9 @@ APFloat::compare(const APFloat &rhs) const if(sign) { if(result == cmpLessThan) - result = cmpGreaterThan; + result = cmpGreaterThan; else if(result == cmpGreaterThan) - result = cmpLessThan; + result = cmpLessThan; } } @@ -1316,12 +1316,12 @@ APFloat::compare(const APFloat &rhs) const APFloat::opStatus APFloat::convert(const fltSemantics &toSemantics, - roundingMode rounding_mode) + roundingMode rounding_mode) { lostFraction lostFraction; unsigned int newPartCount, oldPartCount; opStatus fs; - + lostFraction = lfExactlyZero; newPartCount = partCountForBits(toSemantics.precision + 1); oldPartCount = partCount(); @@ -1348,7 +1348,7 @@ APFloat::convert(const fltSemantics &toSemantics, (significandParts(), oldPartCount, toSemantics.precision); if (newPartCount == 1) { integerPart newPart = 0; - if (category==fcNormal || category==fcNaN) + if (category==fcNormal || category==fcNaN) newPart = significandParts()[0]; freeSignificand(); significand.part = newPart; @@ -1392,8 +1392,8 @@ APFloat::convert(const fltSemantics &toSemantics, round-to-zero to always be used. */ APFloat::opStatus APFloat::convertToInteger(integerPart *parts, unsigned int width, - bool isSigned, - roundingMode rounding_mode) const + bool isSigned, + roundingMode rounding_mode) const { lostFraction lost_fraction; unsigned int msb, partsCount; @@ -1463,7 +1463,7 @@ APFloat::convertToInteger(integerPart *parts, unsigned int width, /* It takes exponent + 1 bits to represent the truncated floating point number without its sign. We lose a bit for the sign, but the maximally negative integer is a special case. */ - if(msb + 1 > width) /* !! Not same as msb >= width !! */ + if(msb + 1 > width) /* !! Not same as msb >= width !! */ return opInvalidOp; if(isSigned && msb + 1 == width @@ -1483,8 +1483,8 @@ APFloat::convertToInteger(integerPart *parts, unsigned int width, APFloat::opStatus APFloat::convertFromUnsignedInteger(integerPart *parts, - unsigned int partCount, - roundingMode rounding_mode) + unsigned int partCount, + roundingMode rounding_mode) { unsigned int msb, precision; lostFraction lost_fraction; @@ -1510,8 +1510,8 @@ APFloat::convertFromUnsignedInteger(integerPart *parts, } APFloat::opStatus -APFloat::convertFromInteger(const integerPart *parts, unsigned int width, - bool isSigned, roundingMode rounding_mode) +APFloat::convertFromInteger(const integerPart *parts, unsigned int width, + bool isSigned, roundingMode rounding_mode) { unsigned int partCount = partCountForBits(width); opStatus status; @@ -1539,7 +1539,7 @@ APFloat::convertFromInteger(const integerPart *parts, unsigned int width, APFloat::opStatus APFloat::convertFromHexadecimalString(const char *p, - roundingMode rounding_mode) + roundingMode rounding_mode) { lostFraction lost_fraction; integerPart *significand; @@ -1582,7 +1582,7 @@ APFloat::convertFromHexadecimalString(const char *p, } else { lost_fraction = trailingHexadecimalFraction(p, hex_value); while(hexDigitValue(*p) != -1U) - p++; + p++; break; } } @@ -1618,7 +1618,8 @@ APFloat::convertFromHexadecimalString(const char *p, } APFloat::opStatus -APFloat::convertFromString(const char *p, roundingMode rounding_mode) { +APFloat::convertFromString(const char *p, roundingMode rounding_mode) +{ /* Handle a leading minus sign. */ if(*p == '-') sign = 1, p++; @@ -1635,7 +1636,8 @@ APFloat::convertFromString(const char *p, roundingMode rounding_mode) { // For good performance it is desirable for different APFloats // to produce different integers. uint32_t -APFloat::getHashValue() const { +APFloat::getHashValue() const +{ if (category==fcZero) return sign<<8 | semantics->precision ; else if (category==fcInfinity) return sign<<9 | semantics->precision; else if (category==fcNaN) return 1<<10 | semantics->precision; @@ -1658,7 +1660,8 @@ APFloat::getHashValue() const { // the actual IEEE respresentations. We compensate for that here. APInt -APFloat::convertF80LongDoubleAPFloatToAPInt() const { +APFloat::convertF80LongDoubleAPFloatToAPInt() const +{ assert(semantics == (const llvm::fltSemantics* const)&x87DoubleExtended); assert (partCount()==2); @@ -1682,8 +1685,8 @@ APFloat::convertF80LongDoubleAPFloatToAPInt() const { assert(0); uint64_t words[2]; - words[0] = (((uint64_t)sign & 1) << 63) | - ((myexponent & 0x7fff) << 48) | + words[0] = (((uint64_t)sign & 1) << 63) | + ((myexponent & 0x7fff) << 48) | ((mysignificand >>16) & 0xffffffffffffLL); words[1] = mysignificand & 0xffff; APInt api(80, 2, words); @@ -1691,7 +1694,8 @@ APFloat::convertF80LongDoubleAPFloatToAPInt() const { } APInt -APFloat::convertDoubleAPFloatToAPInt() const { +APFloat::convertDoubleAPFloatToAPInt() const +{ assert(semantics == (const llvm::fltSemantics*)&IEEEdouble); assert (partCount()==1); @@ -1714,17 +1718,18 @@ APFloat::convertDoubleAPFloatToAPInt() const { } else assert(0); - APInt api(64, (((((uint64_t)sign & 1) << 63) | - ((myexponent & 0x7ff) << 52) | + APInt api(64, (((((uint64_t)sign & 1) << 63) | + ((myexponent & 0x7ff) << 52) | (mysignificand & 0xfffffffffffffLL)))); return api; } APInt -APFloat::convertFloatAPFloatToAPInt() const { +APFloat::convertFloatAPFloatToAPInt() const +{ assert(semantics == (const llvm::fltSemantics*)&IEEEsingle); assert (partCount()==1); - + uint32_t myexponent, mysignificand; if (category==fcNormal) { @@ -1744,32 +1749,36 @@ APFloat::convertFloatAPFloatToAPInt() const { } else assert(0); - APInt api(32, (((sign&1) << 31) | ((myexponent&0xff) << 23) | + APInt api(32, (((sign&1) << 31) | ((myexponent&0xff) << 23) | (mysignificand & 0x7fffff))); return api; } APInt -APFloat::convertToAPInt() const { +APFloat::convertToAPInt() const +{ if (semantics == (const llvm::fltSemantics* const)&IEEEsingle) return convertFloatAPFloatToAPInt(); else if (semantics == (const llvm::fltSemantics* const)&IEEEdouble) return convertDoubleAPFloatToAPInt(); else if (semantics == (const llvm::fltSemantics* const)&x87DoubleExtended) return convertF80LongDoubleAPFloatToAPInt(); - else - assert(0); + + assert(0); + abort(); } -float -APFloat::convertToFloat() const { +float +APFloat::convertToFloat() const +{ assert(semantics == (const llvm::fltSemantics* const)&IEEEsingle); APInt api = convertToAPInt(); return api.bitsToFloat(); } -double -APFloat::convertToDouble() const { +double +APFloat::convertToDouble() const +{ assert(semantics == (const llvm::fltSemantics* const)&IEEEdouble); APInt api = convertToAPInt(); return api.bitsToDouble(); @@ -1781,7 +1790,8 @@ APFloat::convertToDouble() const { /// exponent = 0, integer bit set. (formerly "psuedodenormals") /// exponent!=0 nor all 1's, integer bit not set. (formerly "unnormals") void -APFloat::initFromF80LongDoubleAPInt(const APInt &api) { +APFloat::initFromF80LongDoubleAPInt(const APInt &api) +{ assert(api.getBitWidth()==80); uint64_t i1 = api.getRawData()[0]; uint64_t i2 = api.getRawData()[1]; @@ -1811,11 +1821,12 @@ APFloat::initFromF80LongDoubleAPInt(const APInt &api) { significandParts()[1] = 0; if (myexponent==0) // denormal exponent = -16382; - } + } } void -APFloat::initFromDoubleAPInt(const APInt &api) { +APFloat::initFromDoubleAPInt(const APInt &api) +{ assert(api.getBitWidth()==64); uint64_t i = *api.getRawData(); uint64_t myexponent = (i >> 52) & 0x7ff; @@ -1843,11 +1854,12 @@ APFloat::initFromDoubleAPInt(const APInt &api) { exponent = -1022; else *significandParts() |= 0x10000000000000LL; // integer bit - } + } } void -APFloat::initFromFloatAPInt(const APInt & api) { +APFloat::initFromFloatAPInt(const APInt & api) +{ assert(api.getBitWidth()==32); uint32_t i = (uint32_t)*api.getRawData(); uint32_t myexponent = (i >> 23) & 0xff; @@ -1883,7 +1895,8 @@ APFloat::initFromFloatAPInt(const APInt & api) { /// breaks when we get to PPC128 and IEEE128 (but both cannot exist in the /// same compile...) void -APFloat::initFromAPInt(const APInt& api) { +APFloat::initFromAPInt(const APInt& api) +{ if (api.getBitWidth() == 32) return initFromFloatAPInt(api); else if (api.getBitWidth()==64) @@ -1894,17 +1907,19 @@ APFloat::initFromAPInt(const APInt& api) { assert(0); } -APFloat::APFloat(const APInt& api) { +APFloat::APFloat(const APInt& api) +{ initFromAPInt(api); } -APFloat::APFloat(float f) { +APFloat::APFloat(float f) +{ APInt api = APInt(32, 0); initFromAPInt(api.floatToBits(f)); } -APFloat::APFloat(double d) { +APFloat::APFloat(double d) +{ APInt api = APInt(64, 0); initFromAPInt(api.doubleToBits(d)); } - |