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Initialize the only-used-with-PPC-double-double parts of the APFloat class. This

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makes valgrind stop complaining about uninitialized variables being read when it
accesses a bitfield (category) that shares its bits with these variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127871 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-03-18 09:09:44 +00:00
parent 9a4584b54b
commit f09a8b533d
1 changed files with 10 additions and 13 deletions
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23
lib/Support/APFloat.cpp
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@ -726,7 +726,7 @@ APFloat::bitwiseIsEqual(const APFloat &rhs) const {
} }
APFloat::APFloat(const fltSemantics &ourSemantics, integerPart value) APFloat::APFloat(const fltSemantics &ourSemantics, integerPart value)
{ : exponent2(0), sign2(0) {
assertArithmeticOK(ourSemantics); assertArithmeticOK(ourSemantics);
initialize(&ourSemantics); initialize(&ourSemantics);
sign = 0; sign = 0;
@ -736,14 +736,15 @@ APFloat::APFloat(const fltSemantics &ourSemantics, integerPart value)
normalize(rmNearestTiesToEven, lfExactlyZero); normalize(rmNearestTiesToEven, lfExactlyZero);
} }
APFloat::APFloat(const fltSemantics &ourSemantics) { APFloat::APFloat(const fltSemantics &ourSemantics) : exponent2(0), sign2(0) {
assertArithmeticOK(ourSemantics); assertArithmeticOK(ourSemantics);
initialize(&ourSemantics); initialize(&ourSemantics);
category = fcZero; category = fcZero;
sign = false; sign = false;
} }
APFloat::APFloat(const fltSemantics &ourSemantics, uninitializedTag tag) { APFloat::APFloat(const fltSemantics &ourSemantics, uninitializedTag tag)
: exponent2(0), sign2(0) {
assertArithmeticOK(ourSemantics); assertArithmeticOK(ourSemantics);
// Allocates storage if necessary but does not initialize it. // Allocates storage if necessary but does not initialize it.
initialize(&ourSemantics); initialize(&ourSemantics);
@ -751,7 +752,7 @@ APFloat::APFloat(const fltSemantics &ourSemantics, uninitializedTag tag) {
APFloat::APFloat(const fltSemantics &ourSemantics, APFloat::APFloat(const fltSemantics &ourSemantics,
fltCategory ourCategory, bool negative) fltCategory ourCategory, bool negative)
{ : exponent2(0), sign2(0) {
assertArithmeticOK(ourSemantics); assertArithmeticOK(ourSemantics);
initialize(&ourSemantics); initialize(&ourSemantics);
category = ourCategory; category = ourCategory;
@ -763,14 +764,13 @@ APFloat::APFloat(const fltSemantics &ourSemantics,
} }
APFloat::APFloat(const fltSemantics &ourSemantics, StringRef text) APFloat::APFloat(const fltSemantics &ourSemantics, StringRef text)
{ : exponent2(0), sign2(0) {
assertArithmeticOK(ourSemantics); assertArithmeticOK(ourSemantics);
initialize(&ourSemantics); initialize(&ourSemantics);
convertFromString(text, rmNearestTiesToEven); convertFromString(text, rmNearestTiesToEven);
} }
APFloat::APFloat(const APFloat &rhs) APFloat::APFloat(const APFloat &rhs) : exponent2(0), sign2(0) {
{
initialize(rhs.semantics); initialize(rhs.semantics);
assign(rhs); assign(rhs);
} }
@ -3257,18 +3257,15 @@ APFloat APFloat::getSmallestNormalized(const fltSemantics &Sem, bool Negative) {
return Val; return Val;
} }
APFloat::APFloat(const APInt& api, bool isIEEE) APFloat::APFloat(const APInt& api, bool isIEEE) : exponent2(0), sign2(0) {
{
initFromAPInt(api, isIEEE); initFromAPInt(api, isIEEE);
} }
APFloat::APFloat(float f) APFloat::APFloat(float f) : exponent2(0), sign2(0) {
{
initFromAPInt(APInt::floatToBits(f)); initFromAPInt(APInt::floatToBits(f));
} }
APFloat::APFloat(double d) APFloat::APFloat(double d) : exponent2(0), sign2(0) {
{
initFromAPInt(APInt::doubleToBits(d)); initFromAPInt(APInt::doubleToBits(d));
} }