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Simplify.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47058 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-02-13 09:13:21 +00:00
parent e984e504b5
commit 9cec00e7f1
1 changed files with 1 additions and 3 deletions
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4
lib/CodeGen/TargetInstrInfoImpl.cpp
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@ -23,11 +23,9 @@ MachineInstr *TargetInstrInfoImpl::commuteInstruction(MachineInstr *MI) const {
"This only knows how to commute register operands so far");
unsigned Reg1 = MI->getOperand(1).getReg();
unsigned Reg2 = MI->getOperand(2).getReg();
MachineOperand &MO = MI->getOperand(0);
bool UpdateReg0 = MO.isReg() && MO.getReg() == Reg1;
bool Reg1IsKill = MI->getOperand(1).isKill();
bool Reg2IsKill = MI->getOperand(2).isKill();
if (UpdateReg0) {
if (MI->getOperand(0).getReg() == Reg1) {
// Must be two address instruction!
assert(MI->getDesc().getOperandConstraint(0, TOI::TIED_TO) &&
"Expecting a two-address instruction!");