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Add function live-ins to entry block live-in set.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34112 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-02-10 02:43:39 +00:00
parent 13d8285678
commit ad2070c667
1 changed files with 8 additions and 0 deletions
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8
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -3891,6 +3891,14 @@ bool SelectionDAGISel::runOnFunction(Function &Fn) {
for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I)
SelectBasicBlock(I, MF, FuncInfo);
// Add function live-ins to entry block live-in set.
BasicBlock *EntryBB = &Fn.getEntryBlock();
BB = FuncInfo.MBBMap[EntryBB];
if (!MF.livein_empty())
for (MachineFunction::livein_iterator I = MF.livein_begin(),
E = MF.livein_end(); I != E; ++I)
BB->addLiveIn(I->first);
return true;
}