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

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54065 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2008-07-25 21:35:43 +00:00
parent 55c64358d1
commit 020decc2b4
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/StrongPHIElimination.cpp
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@ -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);
}