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Sign-extend integer constants from original type size to 64 bits!

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llvm-svn: 3958
This commit is contained in:
Vikram S. Adve 2002-09-27 14:26:20 +00:00
parent 6cff79b3e1
commit c795b90eac
1 changed files with 9 additions and 5 deletions
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14
lib/CodeGen/InstrSelection/InstrSelectionSupport.cpp
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@ -373,11 +373,15 @@ ChooseRegOrImmed(Value* val,
else if (CPV->getType()->isSigned())
intValue = cast<ConstantSInt>(CPV)->getValue();
else
{
assert(CPV->getType()->isUnsigned() && "Not pointer, bool, or integer?");
uint64_t V = cast<ConstantUInt>(CPV)->getValue();
if (V >= INT64_MAX) return MachineOperand::MO_VirtualRegister;
intValue = (int64_t) V;
{ // get the int value and sign-extend if original was less than 64 bits
intValue = (int64_t) cast<ConstantUInt>(CPV)->getValue();
switch(CPV->getType()->getPrimitiveID())
{
case Type::UByteTyID: intValue = (int64_t) (int8_t) intValue; break;
case Type::UShortTyID: intValue = (int64_t) (short) intValue; break;
case Type::UIntTyID: intValue = (int64_t) (int) intValue; break;
default: break;
}
}
return ChooseRegOrImmed(intValue, CPV->getType()->isSigned(),