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Fix CreateUIntSetInstruction() to handle sign extensions correctly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2059 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2002-03-31 00:13:12 +00:00
parent 072d3a0224
commit f7cedec1f2
1 changed files with 37 additions and 7 deletions
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44
lib/Target/SparcV9/SparcV9InstrInfo.cpp
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@ -45,8 +45,8 @@ CreateIntSetInstruction(int64_t C, Value* dest,
else
{
minstr = new MachineInstr(SETSW);
minstr->SetMachineOperandConst(0, MachineOperand::MO_SignExtendedImmed, C);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister, dest);
minstr->SetMachineOperandConst(0,MachineOperand::MO_SignExtendedImmed,C);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister,dest);
}
return minstr;
@ -59,20 +59,50 @@ CreateUIntSetInstruction(uint64_t C, Value* dest,
MachineInstr* minstr;
if (C > (unsigned int) ~0)
{ // C does not fit in 32 bits
assert(dest->getType() == Type::ULongTy && "Sign extension problems");
TmpInstruction *tmpReg = new TmpInstruction(Type::IntTy);
tempVec.push_back(tmpReg);
minstr = new MachineInstr(SETX);
minstr->SetMachineOperandConst(0, MachineOperand::MO_SignExtendedImmed, C);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister, tmpReg,
/*isdef*/ true);
minstr->SetMachineOperandConst(0,MachineOperand::MO_SignExtendedImmed,C);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister,
tmpReg, /*isdef*/ true);
minstr->SetMachineOperandVal(2, MachineOperand::MO_VirtualRegister,dest);
}
else
else if (dest->getType() == Type::ULongTy)
{
minstr = new MachineInstr(SETUW);
minstr->SetMachineOperandConst(0, MachineOperand::MO_UnextendedImmed, C);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister, dest);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister,dest);
}
else
{ // cast to signed type of the right length and use signed op (SETSW)
// to get correct sign extension
//
minstr = new MachineInstr(SETSW);
minstr->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister,dest);
switch (dest->getType()->getPrimitiveID())
{
case Type::UIntTyID:
minstr->SetMachineOperandConst(0,
MachineOperand::MO_SignExtendedImmed,
(int) C);
break;
case Type::UShortTyID:
minstr->SetMachineOperandConst(0,
MachineOperand::MO_SignExtendedImmed,
(short) C);
break;
case Type::UByteTyID:
minstr->SetMachineOperandConst(0,
MachineOperand::MO_SignExtendedImmed,
(char) C);
break;
default:
assert(0 && "Unexpected unsigned type");
break;
}
}
return minstr;