1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index dc2c74a835..bd81f8e424 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -32,6 +32,7 @@
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/InlineAsm.h"
 #include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/GlobalVariable.h"
 #include "llvm/MC/MCRegisterInfo.h"
 #include "llvm/Target/TargetCallingConv.h"
 #include "llvm/Target/TargetMachine.h"
@@ -883,6 +884,12 @@ public:
     return 0;
   }
 
+  /// Returns the alignment required by global merge on external symbols.
+  /// By default, returns the natural alignment of merged data structure.
+  virtual unsigned getGlobalMergeAlignment(StructType *MergedTy) const {
+    return getDataLayout()->getABITypeAlignment(MergedTy);
+  }
+
   /// Returns true if a cast between SrcAS and DestAS is a noop.
   virtual bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const {
     return false;