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| author | Chris Lattner <sabre@nondot.org> | 2008-10-17 06:11:48 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-10-17 06:11:48 +0000 |
| commit | abec474236601d7c10469a212decd010727ba060 (patch) | |
| tree | 230fbb88bcd584a59f24b3f6e87a9f44b3fc2faa | |
| parent | b2a14325079f64debd7df6d5a8ed2037b3128154 (diff) | |
| download | external_llvm-abec474236601d7c10469a212decd010727ba060.zip external_llvm-abec474236601d7c10469a212decd010727ba060.tar.gz external_llvm-abec474236601d7c10469a212decd010727ba060.tar.bz2 | |
add some simple hacky long double support for the CBE. This
should work for intel long double, but ppc long double aborts
in convert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57672 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/CBackend/CBackend.cpp | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp index 7ec649d..72bc920 100644 --- a/lib/Target/CBackend/CBackend.cpp +++ b/lib/Target/CBackend/CBackend.cpp @@ -1129,11 +1129,21 @@ void CWriter::printConstant(Constant *CPV, bool Static) { "long double") << "*)&FPConstant" << I->second << ')'; } else { - assert(FPC->getType() == Type::FloatTy || - FPC->getType() == Type::DoubleTy); - double V = FPC->getType() == Type::FloatTy ? - FPC->getValueAPF().convertToFloat() : - FPC->getValueAPF().convertToDouble(); + double V; + if (FPC->getType() == Type::FloatTy) + V = FPC->getValueAPF().convertToFloat(); + else if (FPC->getType() == Type::DoubleTy) + V = FPC->getValueAPF().convertToDouble(); + else { + // Long double. Convert the number to double, discarding precision. + // This is not awesome, but it at least makes the CBE output somewhat + // useful. + APFloat Tmp = FPC->getValueAPF(); + bool LosesInfo; + Tmp.convert(APFloat::IEEEdouble, APFloat::rmTowardZero, &LosesInfo); + V = Tmp.convertToDouble(); + } + if (IsNAN(V)) { // The value is NaN |