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Rewrite FP constant handling in DEBUG_VALUE yet

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again, so it more or less handles long double.
Restore \n removed in latest MC frenzy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95271 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2010-02-04 01:33:43 +00:00
parent af6ce14d67
commit c4b94e02af
1 changed files with 17 additions and 5 deletions
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22
lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
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@ -25,6 +25,7 @@
#include "llvm/Target/Mangler.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Type.h"
using namespace llvm;
@ -430,14 +431,25 @@ void X86AsmPrinter::EmitInstruction(const MachineInstr *MI) {
if (MI->getOperand(0).getType()==MachineOperand::MO_Register &&
MI->getOperand(0).getReg()==0) {
// Suppress offset in this case, it is not meaningful.
O << "undef";
O << "undef\n";
return;
} else if (MI->getOperand(0).getType()==MachineOperand::MO_FPImmediate) {
// This is more naturally done in printOperand, but since the only use
// of such an operand is in this comment and that is temporary, we
// prefer to keep this localized.
O << '$';
MI->getOperand(0).print(O, &TM);
// of such an operand is in this comment and that is temporary (and it's
// ugly), we prefer to keep this localized.
// The include of Type.h may be removable when this code is.
if (MI->getOperand(0).getFPImm()->getType()->isFloatTy() ||
MI->getOperand(0).getFPImm()->getType()->isDoubleTy())
MI->getOperand(0).print(O, &TM);
else {
// There is no good way to print long double. Convert a copy to
// double. Ah well, it's only a comment.
bool ignored;
APFloat APF = APFloat(MI->getOperand(0).getFPImm()->getValueAPF());
APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
&ignored);
O << "(long double) " << APF.convertToDouble();
}
} else
printOperand(MI, 0);
} else {