Fix an unitialized member variable that may have caused sporadic failures
for code that wasn't even in bundling mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170793 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAssembler.cpp b/lib/MC/MCAssembler.cpp
index f4c3fc5..20b64e2 100644
--- a/lib/MC/MCAssembler.cpp
+++ b/lib/MC/MCAssembler.cpp
@@ -232,7 +232,8 @@
                          MCCodeEmitter &Emitter_, MCObjectWriter &Writer_,
                          raw_ostream &OS_)
   : Context(Context_), Backend(Backend_), Emitter(Emitter_), Writer(Writer_),
-    OS(OS_), RelaxAll(false), NoExecStack(false), SubsectionsViaSymbols(false) {
+    OS(OS_), BundleAlignSize(0), RelaxAll(false), NoExecStack(false),
+    SubsectionsViaSymbols(false) {
 }
 
 MCAssembler::~MCAssembler() {