Clear kill flags in InstrEmitter::EmitSubregNode().
When a local virtual register is made global, make sure to clear any
existing kill flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159461 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
index a57d47f..f1542718 100644
--- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
+++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
@@ -470,6 +470,7 @@
VRBase = MRI->createVirtualRegister(TRC);
BuildMI(*MBB, InsertPos, Node->getDebugLoc(),
TII->get(TargetOpcode::COPY), VRBase).addReg(SrcReg);
+ MRI->clearKillFlags(SrcReg);
} else {
// VReg may not support a SubIdx sub-register, and we may need to
// constrain its register class or issue a COPY to a compatible register