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Use getFirstTerminator().

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98604 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2010-03-16 02:01:51 +00:00
parent 827f778338
commit b0d27662ea
1 changed files with 4 additions and 4 deletions
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8
lib/CodeGen/RegAllocLocal.cpp
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@ -671,9 +671,10 @@ void RALocal::ComputeLocalLiveness(MachineBasicBlock& MBB) {
// Live-out (of the function) registers contain return values of the function,
// so we need to make sure they are alive at return time.
bool BBEndsInReturn = !MBB.empty() && MBB.back().getDesc().isReturn();
if (BBEndsInReturn) {
MachineInstr* Ret = &MBB.back();
MachineBasicBlock::iterator Ret = MBB.getFirstTerminator();
bool BBEndsInReturn = (Ret != MBB.end() && Ret->getDesc().isReturn());
if (BBEndsInReturn)
for (MachineRegisterInfo::liveout_iterator
I = MF->getRegInfo().liveout_begin(),
E = MF->getRegInfo().liveout_end(); I != E; ++I)
@ -681,7 +682,6 @@ void RALocal::ComputeLocalLiveness(MachineBasicBlock& MBB) {
Ret->addOperand(MachineOperand::CreateReg(*I, false, true));
LastUseDef[*I] = std::make_pair(Ret, Ret->getNumOperands()-1);
}
}
// Finally, loop over the final use/def of each reg
// in the block and determine if it is dead.