Do not check that the bodies of two defs of same linkonce global are the same.
Such a check does not make any sense in presense of inlining and other compiler-dependent stuff.
This should fix bunch of warnings on mingw32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116113 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 4afdc3d..164ee37 100644
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -1008,7 +1008,7 @@
     Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
 
     return getContext().getCOFFSection(Name.str(), Characteristics,
-                          COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH, Kind);
+                          COFF::IMAGE_COMDAT_SELECT_ANY, Kind);
   }
 
   if (Kind.isText())