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Always set isDef for operand in position resultPos.

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llvm-svn: 357
This commit is contained in:
Vikram S. Adve 2001-08-13 16:32:45 +00:00
parent af7ba34d58
commit 33b366f516
1 changed files with 10 additions and 7 deletions
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17
lib/CodeGen/MachineInstr.cpp
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@ -46,7 +46,8 @@ MachineInstr::SetMachineOperand(unsigned int i,
{
assert(i < operands.size());
operands[i].Initialize(operandType, _val);
operands[i].isDef = isdef;
operands[i].isDef = isdef ||
TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
@ -56,7 +57,8 @@ MachineInstr::SetMachineOperand(unsigned int i,
{
assert(i < operands.size());
operands[i].InitializeConst(operandType, intValue);
operands[i].isDef = isdef;
operands[i].isDef = isdef ||
TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
@ -65,7 +67,8 @@ MachineInstr::SetMachineOperand(unsigned int i,
{
assert(i < operands.size());
operands[i].InitializeReg(regNum);
operands[i].isDef = isdef;
operands[i].isDef = isdef ||
TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
@ -249,9 +252,9 @@ Set3OperandsFromInstrJUNK(MachineInstr* minstr,
// If operand 3 (result) can be discarded, use a dead register if one exists
if (canDiscardResult && target.zeroRegNum >= 0)
minstr->SetMachineOperand(resultPosition, target.zeroRegNum, true);
minstr->SetMachineOperand(resultPosition, target.zeroRegNum);
else
minstr->SetMachineOperand(resultPosition, MachineOperand::MO_VirtualRegister, vmInstrNode->getValue(), true);
minstr->SetMachineOperand(resultPosition, MachineOperand::MO_VirtualRegister, vmInstrNode->getValue());
return returnFlags;
}
@ -281,9 +284,9 @@ Set3OperandsFromInstr(MachineInstr* minstr,
// result operand: if it can be discarded, use a dead register if one exists
if (canDiscardResult && target.zeroRegNum >= 0)
minstr->SetMachineOperand(resultPosition, target.zeroRegNum, true);
minstr->SetMachineOperand(resultPosition, target.zeroRegNum);
else
minstr->SetMachineOperand(resultPosition, MachineOperand::MO_VirtualRegister, vmInstrNode->getValue(), true);
minstr->SetMachineOperand(resultPosition, MachineOperand::MO_VirtualRegister, vmInstrNode->getValue());
}