Null-initialize to shut up -Wuninitialized warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138974 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index a6f71a2..0756be3 100644 (file)
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -5333,7 +5333,7 @@ ARMTargetLowering::EmitAtomicBinary64(MachineInstr *MI, MachineBasicBlock *BB,
   unsigned strOpc = isThumb2 ? ARM::t2STREXD : ARM::STREXD;
 
   MachineBasicBlock *loopMBB = MF->CreateMachineBasicBlock(LLVM_BB);
-  MachineBasicBlock *contBB, *cont2BB;
+  MachineBasicBlock *contBB = 0, *cont2BB = 0;
   if (IsCmpxchg) {
     contBB = MF->CreateMachineBasicBlock(LLVM_BB);
     cont2BB = MF->CreateMachineBasicBlock(LLVM_BB);