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Add APInt interfaces to APFloat (allows directly

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access to bits).  Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling 
(untested, probably does not work).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2007-09-11 18:32:33 +00:00
parent 6320260e06
commit 3f6eb7419d
16 changed files with 309 additions and 100 deletions
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11
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -622,23 +622,24 @@ bool BitcodeReader::ParseConstants() {
NumWords, &Words[0]));
break;
}
case bitc::CST_CODE_FLOAT: // FLOAT: [fpval]
case bitc::CST_CODE_FLOAT: { // FLOAT: [fpval]
if (Record.empty())
return Error("Invalid FLOAT record");
if (CurTy == Type::FloatTy)
V = ConstantFP::get(CurTy, APFloat(BitsToFloat(Record[0])));
V = ConstantFP::get(CurTy, APFloat(APInt(32, (uint32_t)Record[0])));
else if (CurTy == Type::DoubleTy)
V = ConstantFP::get(CurTy, APFloat(BitsToDouble(Record[0])));
V = ConstantFP::get(CurTy, APFloat(APInt(64, Record[0])));
// FIXME: Make long double constants work. BitsToDouble does not make it.
else if (CurTy == Type::X86_FP80Ty)
V = ConstantFP::get(CurTy, APFloat(BitsToDouble(Record[0])));
V = ConstantFP::get(CurTy, APFloat(APInt(80, 2, &Record[0])));
else if (CurTy == Type::FP128Ty)
V = ConstantFP::get(CurTy, APFloat(BitsToDouble(Record[0])));
V = ConstantFP::get(CurTy, APFloat(APInt(128, 2, &Record[0])));
else if (CurTy == Type::PPC_FP128Ty)
assert(0 && "PowerPC long double constants not handled yet.");
else
V = UndefValue::get(CurTy);
break;
}
case bitc::CST_CODE_AGGREGATE: {// AGGREGATE: [n x value number]
if (Record.empty())