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-rw-r--r--include/llvm/Constants.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index 0abe17d..fdd5382 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);
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