Make DataLayout Non-Optional in the Module

[oota-llvm.git] / include / llvm / IR / Module.h

diff --git a/include/llvm/IR/Module.h b/include/llvm/IR/Module.h
index 62f41943be833c8ce2bcdf36ab4e8d1541ea4fa7..932acb52b5e54a8afcbb97ec90b5407464894bed 100644 (file)
--- a/include/llvm/IR/Module.h
+++ b/include/llvm/IR/Module.h
@@ -219,14 +219,7 @@ private:
   std::string TargetTriple;       ///< Platform target triple Module compiled on
                                   ///< Format: (arch)(sub)-(vendor)-(sys0-(abi)
   void *NamedMDSymTab;            ///< NamedMDNode names.
-
-  // We need to keep the string because the C API expects us to own the string
-  // representation.
-  // Since we have it, we also use an empty string to represent a module without
-  // a DataLayout. If it has a DataLayout, these variables are in sync and the
-  // string is just a cache of getDataLayout()->getStringRepresentation().
-  std::string DataLayoutStr;
-  DataLayout DL;
+  DataLayout DL;                  ///< DataLayout associated with the module
 
   friend class Constant;
 
@@ -256,10 +249,12 @@ public:
 
   /// Get the data layout string for the module's target platform. This is
   /// equivalent to getDataLayout()->getStringRepresentation().
-  const std::string &getDataLayoutStr() const { return DataLayoutStr; }
+  const std::string getDataLayoutStr() const {
+    return DL.getStringRepresentation();
+  }
 
   /// Get the data layout for the module's target platform.
-  const DataLayout *getDataLayout() const;
+  const DataLayout &getDataLayout() const;
 
   /// Get the target triple which is a string describing the target host.
   /// @returns a string containing the target triple.
@@ -293,7 +288,7 @@ public:
 
   /// Set the data layout
   void setDataLayout(StringRef Desc);
-  void setDataLayout(const DataLayout *Other);
+  void setDataLayout(const DataLayout &Other);
 
   /// Set the target triple.
   void setTargetTriple(StringRef T) { TargetTriple = T; }