Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.

llvm-svn: 62600

1 files changed, 5 insertions, 6 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.h b/llvm/lib/Target/PowerPC/PPCInstrInfo.h
index f45b5ef6772..7b831cf7c0d 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.h
@@ -86,12 +86,11 @@ public:
   /// This is used for addressing modes.
   virtual const TargetRegisterClass *getPointerRegClass() const;  
 
-  // Return true if the instruction is a register to register move and
-  // leave the source and dest operands in the passed parameters.
-  //
-  virtual bool isMoveInstr(const MachineInstr& MI,
-                           unsigned& sourceReg,
-                           unsigned& destReg) const;
+  /// Return true if the instruction is a register to register move and return
+  /// the source and dest operands and their sub-register indices by reference.
+  virtual bool isMoveInstr(const MachineInstr &MI,
+                           unsigned &SrcReg, unsigned &DstReg,
+                           unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
 
   unsigned isLoadFromStackSlot(const MachineInstr *MI,
                                int &FrameIndex) const;