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| author | Dale Johannesen <dalej@apple.com> | 2008-01-31 18:34:01 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2008-01-31 18:34:01 +0000 |
| commit | d8a3d9e85eedc5c898ef73e835292dba71cfdd4c (patch) | |
| tree | b68b75ecd1b6989412666cc71dffa637b085bee6 /lib/Support/APFloat.cpp | |
| parent | a7fbaf8f0aa886cf73e671a64ae3194a688e506b (diff) | |
| download | external_llvm-d8a3d9e85eedc5c898ef73e835292dba71cfdd4c.zip external_llvm-d8a3d9e85eedc5c898ef73e835292dba71cfdd4c.tar.gz external_llvm-d8a3d9e85eedc5c898ef73e835292dba71cfdd4c.tar.bz2 | |
Chris' change to print an approximation to long doubles
exposed a bug in APFloat's long double->double conversion of
NaNs. Broke several things in the ieee part of gcc testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46617 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/APFloat.cpp')
| -rw-r--r-- | lib/Support/APFloat.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp index 04e9914..3de709c 100644 --- a/lib/Support/APFloat.cpp +++ b/lib/Support/APFloat.cpp @@ -1712,6 +1712,8 @@ APFloat::convert(const fltSemantics &toSemantics, fs = normalize(rounding_mode, lostFraction); } else if (category == fcNaN) { int shift = toSemantics.precision - semantics->precision; + // Do this now so significandParts gets the right answer + semantics = &toSemantics; // No normalization here, just truncate if (shift>0) APInt::tcShiftLeft(significandParts(), newPartCount, shift); @@ -1721,7 +1723,6 @@ APFloat::convert(const fltSemantics &toSemantics, // does not give you back the same bits. This is dubious, and we // don't currently do it. You're really supposed to get // an invalid operation signal at runtime, but nobody does that. - semantics = &toSemantics; fs = opOK; } else { semantics = &toSemantics; |