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Fix APFloat::getSmallestNormalized so the shift doesn't depend on undefined behavior. Patch from Ahmed Charles.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141818 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2011-10-12 21:56:19 +00:00
parent 7247a5f20e
commit 90196fced2
1 changed files with 1 additions and 1 deletions
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lib/Support/APFloat.cpp
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@ -3275,7 +3275,7 @@ APFloat APFloat::getSmallestNormalized(const fltSemantics &Sem, bool Negative) {
Val.exponent = Sem.minExponent;
Val.zeroSignificand();
Val.significandParts()[partCountForBits(Sem.precision)-1] |=
(((integerPart) 1) << ((Sem.precision % integerPartWidth) - 1));
(((integerPart) 1) << ((Sem.precision - 1) % integerPartWidth));
return Val;
}