silence a bogus warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22245 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86ISelPattern.cpp b/lib/Target/X86/X86ISelPattern.cpp
index c3b0e5a61150426a5cea8e837f1ab6c9d5f0c34f..8ffcc827e2f8cf84a0dd50d6c77d245c2431e9c8 100644 (file)
--- a/lib/Target/X86/X86ISelPattern.cpp
+++ b/lib/Target/X86/X86ISelPattern.cpp
@@ -3862,7 +3862,7 @@ void ISel::EmitFastCCToFastCCTailCall(SDNode *TailCallNode) {
   SDOperand Callee = TailCallNode->getOperand(1);
   bool isDirect = isa<GlobalAddressSDNode>(Callee) ||
                   isa<ExternalSymbolSDNode>(Callee);
-  unsigned CalleeReg;
+  unsigned CalleeReg = 0;
   if (!isDirect) CalleeReg = SelectExpr(Callee);
 
   unsigned RegOp1 = 0;