In order to avoid reprocessing a register more than once, we need to add it

to the handled set so it will get filtered out in future iterations.

llvm-svn: 54065
This commit is contained in:
Owen Anderson 2008-07-25 21:35:43 +00:00
parent 987bd1dc5b
commit 9e3ea5a60c

View File

@ -741,7 +741,7 @@ void StrongPHIElimination::ScheduleCopies(MachineBasicBlock* MBB,
std::set<unsigned> RegHandled;
for (SmallVector<std::pair<unsigned, MachineInstr*>, 4>::iterator I =
InsertedPHIDests.begin(), E = InsertedPHIDests.end(); I != E; ++I)
if (!RegHandled.count(I->first))
if (!RegHandled.insert(I->first).second)
LI.addLiveRangeToEndOfBlock(I->first, I->second);
}