InstCombine: Move (sext icmp) transforms into their own method. No intended functionality change.

llvm-svn: 128731
diff --git a/llvm/lib/Transforms/InstCombine/InstCombine.h b/llvm/lib/Transforms/InstCombine/InstCombine.h
index d5de53a..625f546 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombine.h
+++ b/llvm/lib/Transforms/InstCombine/InstCombine.h
@@ -217,6 +217,7 @@
   Instruction *transformCallThroughTrampoline(CallSite CS);
   Instruction *transformZExtICmp(ICmpInst *ICI, Instruction &CI,
                                  bool DoXform = true);
+  Instruction *transformSExtICmp(ICmpInst *ICI, Instruction &CI);
   bool WillNotOverflowSignedAdd(Value *LHS, Value *RHS);
   Value *EmitGEPOffset(User *GEP);