Add function live-ins to entry block live-in set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34112 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 3b7fb6b..ae7a495 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -3891,6 +3891,14 @@
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;
}