Use const qualifiers with TargetLowering. This eliminates several

const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/XCore/XCoreTargetMachine.h b/llvm/lib/Target/XCore/XCoreTargetMachine.h
index b0b1464dbe0..701a6f1dfaf 100644
--- a/llvm/lib/Target/XCore/XCoreTargetMachine.h
+++ b/llvm/lib/Target/XCore/XCoreTargetMachine.h
@@ -36,8 +36,8 @@ public:
   virtual const XCoreInstrInfo *getInstrInfo() const { return &InstrInfo; }
   virtual const XCoreFrameInfo *getFrameInfo() const { return &FrameInfo; }
   virtual const XCoreSubtarget *getSubtargetImpl() const { return &Subtarget; }
-  virtual       XCoreTargetLowering *getTargetLowering() const {
-    return const_cast<XCoreTargetLowering*>(&TLInfo);
+  virtual const XCoreTargetLowering *getTargetLowering() const {
+    return &TLInfo;
   }
 
   virtual const TargetRegisterInfo *getRegisterInfo() const {