diff options
Diffstat (limited to 'include/llvm/Constants.h')
| -rw-r--r-- | include/llvm/Constants.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h index a3f5b95dbc..fdd53823aa 100644 --- a/include/llvm/Constants.h +++ b/include/llvm/Constants.h @@ -919,9 +919,15 @@ public: /// 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 - /// is an error to call this for an operation that doesn't have an identity. + /// 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); |