Change C, CBE, MSIL to not provide target data via getTargetData().

- The theory is these should never actually be called, since these boil down to
   passes which can access the target data via the standard mechanism.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77975 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/CBackend/CTargetMachine.h

@@ -32,7 +32,7 @@ struct CTargetMachine : public TargetMachine {
                                         CodeGenFileType FileType,
                                         CodeGenOpt::Level OptLevel);
   
-  virtual const TargetData *getTargetData() const { return &DataLayout; }
+  virtual const TargetData *getTargetData() const { return 0; }
 };
 
 extern Target TheCBackendTarget;

lib/Target/CppBackend/CPPTargetMachine.h

@@ -34,7 +34,7 @@ struct CPPTargetMachine : public TargetMachine {
                                         CodeGenFileType FileType,
                                         CodeGenOpt::Level OptLevel);
 
-  virtual const TargetData *getTargetData() const { return &DataLayout; }
+  virtual const TargetData *getTargetData() const { return 0; }
 };
 
 extern Target TheCppBackendTarget;

lib/Target/MSIL/MSILWriter.cpp

@@ -42,7 +42,7 @@ namespace llvm {
                                           CodeGenFileType FileType,
                                           CodeGenOpt::Level OptLevel);
 
-    virtual const TargetData *getTargetData() const { return &DataLayout; }
+    virtual const TargetData *getTargetData() const { return 0; }
   };
 }