Teach TargetData to handle 'preferred' alignment for each target, and use

these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409

llvm/lib/CodeGen/MachineFunction.cpp

@@ -123,7 +123,8 @@ MachineFunction::MachineFunction(const Function *F,
   const TargetData &TD = *TM.getTargetData();
   bool IsPic = TM.getRelocationModel() == Reloc::PIC_;
   unsigned EntrySize = IsPic ? 4 : TD.getPointerSize();
-  unsigned Alignment = IsPic ? TD.getIntAlignment() : TD.getPointerAlignment();
+  unsigned Alignment = IsPic ? TD.getIntABIAlignment()
+                             : TD.getPointerABIAlignment();
   JumpTableInfo = new MachineJumpTableInfo(EntrySize, Alignment);
   
   BasicBlocks.Parent = this;