Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses.  This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.

This fixes PR 759.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcTargetMachine.h b/lib/Target/Sparc/SparcTargetMachine.h
index 0cad652..7d30dd8 100644
--- a/lib/Target/Sparc/SparcTargetMachine.h
+++ b/lib/Target/Sparc/SparcTargetMachine.h
@@ -25,6 +25,7 @@
 class Module;
 
 class SparcTargetMachine : public TargetMachine {
+  const TargetData DataLayout;       // Calculates type size & alignment
   SparcSubtarget Subtarget;
   SparcInstrInfo InstrInfo;
   TargetFrameInfo FrameInfo;
@@ -37,7 +38,7 @@
   virtual const MRegisterInfo *getRegisterInfo() const {
     return &InstrInfo.getRegisterInfo();
   }
-
+  virtual const TargetData       *getTargetData() const { return &DataLayout; }
   static unsigned getModuleMatchQuality(const Module &M);
 
   virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out,