Move PPCTargetLowering off of the TargetMachine and onto the subtarget.

llvm-svn: 210852
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
index fe58992..9b85c99 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
@@ -18,7 +18,6 @@
 #include "PPC.h"
 #include "PPCInstrInfo.h"
 #include "PPCRegisterInfo.h"
-#include "PPCSubtarget.h"
 #include "llvm/CodeGen/CallingConvLower.h"
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/Target/TargetLowering.h"
@@ -345,6 +344,7 @@
     SDValue get_VSPLTI_elt(SDNode *N, unsigned ByteSize, SelectionDAG &DAG);
   }
 
+  class PPCSubtarget;
   class PPCTargetLowering : public TargetLowering {
     const PPCSubtarget &Subtarget;