vendor/llvm/llvm-trunk-r161861

1 files changed, 11 insertions, 0 deletions

diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index 0abe17d365d4..fdd53823aa0c 100644
--- a/include/llvm/Constants.h
+++ b/include/llvm/Constants.h
@@ -917,6 +917,17 @@ public:
     return getLShr(C1, C2, true);
   }
 
+  /// getBinOpIdentity - Return the identity for the given binary operation,
+  /// i.e. a constant C such that X op C = X and C op X = X for every X.  It
+  /// returns null if the operator doesn't have an identity.
+  static Constant *getBinOpIdentity(unsigned Opcode, Type *Ty);
+
+  /// getBinOpAbsorber - Return the absorbing element for the given binary
+  /// operation, i.e. a constant C such that X op C = C and C op X = C for
+  /// every X.  For example, this returns zero for integer multiplication.
+  /// It returns null if the operator doesn't have an absorbing element.
+  static Constant *getBinOpAbsorber(unsigned Opcode, Type *Ty);
+
   /// Transparently provide more efficient getOperand methods.
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);