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/PowerPC/PPCTargetMachine.h b/llvm/lib/Target/PowerPC/PPCTargetMachine.h
index ac9ae2b43fd..35e33a234c4 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.h
@@ -44,8 +44,8 @@ public:
   virtual const PPCInstrInfo     *getInstrInfo() const { return &InstrInfo; }
   virtual const PPCFrameInfo     *getFrameInfo() const { return &FrameInfo; }
   virtual       PPCJITInfo       *getJITInfo()         { return &JITInfo; }
-  virtual       PPCTargetLowering *getTargetLowering() const { 
-   return const_cast<PPCTargetLowering*>(&TLInfo); 
+  virtual const PPCTargetLowering *getTargetLowering() const { 
+   return &TLInfo;
   }
   virtual const PPCRegisterInfo  *getRegisterInfo() const {
     return &InstrInfo.getRegisterInfo();