[InstCombine] Remove redundant combine from visitAnd

This combine is fully handled by SimplifyDemandedInstructionBits as of r299658 where I fixed this code to ensure the Add/Sub had only a single user. Otherwise it would fire and create additional instructions. That fix resulted in an improvement to code generated for tsan which is why I committed it before deleting.

Differential Revision: https://reviews.llvm.org/D31543

llvm-svn: 299704

1 files changed, 0 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineInternal.h b/llvm/lib/Transforms/InstCombine/InstCombineInternal.h
index b5b48d27a7a..ab15fd84b24 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineInternal.h
+++ b/llvm/lib/Transforms/InstCombine/InstCombineInternal.h
@@ -653,8 +653,6 @@ private:
   Instruction *OptAndOp(BinaryOperator *Op, ConstantInt *OpRHS,
                         ConstantInt *AndRHS, BinaryOperator &TheAnd);
 
-  Value *FoldLogicalPlusAnd(Value *LHS, Value *RHS, ConstantInt *Mask,
-                            bool isSub, Instruction &I);
   Value *insertRangeTest(Value *V, const APInt &Lo, const APInt &Hi,
                          bool isSigned, bool Inside);
   Instruction *PromoteCastOfAllocation(BitCastInst &CI, AllocaInst &AI);