Add undef
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23990 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetSelectionDAG.td b/lib/Target/TargetSelectionDAG.td
index f27fc90..a0b7083 100644
--- a/lib/Target/TargetSelectionDAG.td
+++ b/lib/Target/TargetSelectionDAG.td
@@ -68,7 +68,8 @@
// Builtin profiles.
def SDTImm : SDTypeProfile<1, 0, [SDTCisInt<0>]>; // for 'imm'.
-def SDTVT : SDTypeProfile<1, 0, [SDTCisVT<0, OtherVT>]>; // for 'vt'
+def SDTVT : SDTypeProfile<1, 0, [SDTCisVT<0, OtherVT>]>; // for 'vt'.
+def SDTUNDEF : SDTypeProfile<1, 0, []>; // for 'undef'.
def SDTIntBinOp : SDTypeProfile<1, 2, [ // add, and, or, xor, udiv, etc.
SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisInt<0>
]>;
@@ -123,6 +124,7 @@
def imm : SDNode<"ISD::Constant" , SDTImm , [], "ConstantSDNode">;
def vt : SDNode<"ISD::VALUETYPE" , SDTVT , [], "VTSDNode">;
+def undef : SDNode<"ISD::UNDEF" , SDTUNDEF , []>;
def add : SDNode<"ISD::ADD" , SDTIntBinOp ,
[SDNPCommutative, SDNPAssociative]>;
def sub : SDNode<"ISD::SUB" , SDTIntBinOp>;