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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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19
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -527,13 +527,20 @@ static void WriteConstants(unsigned FirstVal, unsigned LastVal,
Code = bitc::CST_CODE_FLOAT;
const Type *Ty = CFP->getType();
if (Ty == Type::FloatTy)
Record.push_back(FloatToBits(CFP->getValueAPF().convertToFloat()));
Record.push_back((uint32_t)*CFP->getValueAPF().convertToAPInt().
getRawData());
else if (Ty == Type::DoubleTy) {
Record.push_back(DoubleToBits(CFP->getValueAPF().convertToDouble()));
// FIXME: make long double constants work.
} else if (Ty == Type::X86_FP80Ty ||
Ty == Type::FP128Ty || Ty == Type::PPC_FP128Ty) {
assert (0 && "Long double constants not handled yet.");
Record.push_back(*CFP->getValueAPF().convertToAPInt().getRawData());
} else if (Ty == Type::X86_FP80Ty) {
const uint64_t *p = CFP->getValueAPF().convertToAPInt().getRawData();
Record.push_back(p[0]);
Record.push_back((uint16_t)p[1]);
} else if (Ty == Type::FP128Ty) {
const uint64_t *p = CFP->getValueAPF().convertToAPInt().getRawData();
Record.push_back(p[0]);
Record.push_back(p[1]);
} else if (Ty == Type::PPC_FP128Ty) {
assert(0 && "PowerPC long double constants not handled yet.");
} else {
assert (0 && "Unknown FP type!");
}