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Add a "loses information" return value to APFloat::convert

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and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57329 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2008-10-09 23:00:39 +00:00
parent 7111b02c73
commit 23a98551ab
15 changed files with 115 additions and 55 deletions
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lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+4 -1
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@@ -1000,8 +1000,11 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV) {
// api needed to prevent premature destruction
APInt api = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = api.getRawData();
// Convert to double so we can print the approximate val as a comment.
APFloat DoubleVal = CFP->getValueAPF();
DoubleVal.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven);
bool ignored;
DoubleVal.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
&ignored);
if (TD->isBigEndian()) {
O << TAI->getData16bitsDirective() << uint16_t(p[0] >> 48)
<< '\t' << TAI->getCommentString()