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Patch 10 for long double. Doing constants right needs expanding ConstantFP

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to handle values bigger than double.  If we assume host==target and host
long double works correctly, this is not too bad, but we don't want to
have that limitation longterm.  I could implement accepting double
constants as long double or something like that, which would lead to
incorrect codegen with no errors; the more I think about that the worse
it seems.  Rather than do such a hack that would be backed out later,
I'm settling for giving reasonable error messages, for now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40974 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2007-08-09 22:51:36 +00:00
parent a3231ba237
commit ebbc95da49
3 changed files with 28 additions and 7 deletions
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4
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -629,6 +629,10 @@ bool BitcodeReader::ParseConstants() {
V = ConstantFP::get(CurTy, BitsToFloat(Record[0]));
else if (CurTy == Type::DoubleTy)
V = ConstantFP::get(CurTy, BitsToDouble(Record[0]));
// FIXME: Make long double constants work.
else if (CurTy == Type::X86_FP80Ty ||
CurTy == Type::FP128Ty || CurTy == Type::PPC_FP128Ty)
assert(0 && "Long double constants not handled yet.");
else
V = UndefValue::get(CurTy);
break;