factor some logic out of instcombine into a new SimplifyAddInst method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90011 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/include/llvm/Analysis/InstructionSimplify.h b/include/llvm/Analysis/InstructionSimplify.h
index 1cd7e56556..13314e6ea0 100644
--- a/include/llvm/Analysis/InstructionSimplify.h
+++ b/include/llvm/Analysis/InstructionSimplify.h
@@ -20,6 +20,11 @@ namespace llvm {
   class Instruction;
   class Value;
   class TargetData;
+
+  /// SimplifyAddInst - Given operands for an Add, see if we can
+  /// fold the result.  If not, this returns null.
+  Value *SimplifyAddInst(Value *LHS, Value *RHS, bool isNSW, bool isNUW,
+                         const TargetData *TD = 0);
   
   /// SimplifyAndInst - Given operands for an And, see if we can
   /// fold the result.  If not, this returns null.