[MC] Provide default value for IsResolved.

llvm-svn: 331052
diff --git a/llvm/lib/MC/MCAssembler.cpp b/llvm/lib/MC/MCAssembler.cpp
index ecbd41e..154736a 100644
--- a/llvm/lib/MC/MCAssembler.cpp
+++ b/llvm/lib/MC/MCAssembler.cpp
@@ -225,7 +225,7 @@
   bool IsPCRel = getBackendPtr()->getFixupKindInfo(Fixup.getKind()).Flags &
                  MCFixupKindInfo::FKF_IsPCRel;
 
-  bool IsResolved;
+  bool IsResolved = false;
   if (IsPCRel) {
     if (Target.getSymB()) {
       IsResolved = false;