fix PR4650: we only track sizes for certain objects, so only put something
into the mergable section if it is one of our special cases.  This could
obviously be improved, but this is the minimal fix and restores us to the
previous behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77679 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetLoweringObjectFile.cpp b/lib/Target/TargetLoweringObjectFile.cpp
index 166f120..a42911d 100644
--- a/lib/Target/TargetLoweringObjectFile.cpp
+++ b/lib/Target/TargetLoweringObjectFile.cpp
@@ -340,7 +340,10 @@
     Str.push_back('x');
   if (Kind.isWriteable())
     Str.push_back('w');
-  if (Kind.isMergeableConst() || Kind.isMergeableCString())
+  if (Kind.isMergeableCString() ||
+      Kind.isMergeableConst4() ||
+      Kind.isMergeableConst8() ||
+      Kind.isMergeableConst16())
     Str.push_back('M');
   if (Kind.isMergeableCString())
     Str.push_back('S');