Silence a spurious warning


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12815 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp
index 7a1f54e..9858782 100644
--- a/lib/Target/X86/InstSelectSimple.cpp
+++ b/lib/Target/X86/InstSelectSimple.cpp
@@ -2670,7 +2670,7 @@
     // a larger signed value, then use FLD on the larger value.
     //
     const Type *PromoteType = 0;
-    unsigned PromoteOpcode;
+    unsigned PromoteOpcode = 0;
     unsigned RealDestReg = DestReg;
     switch (SrcTy->getPrimitiveID()) {
     case Type::BoolTyID: