[llvm] [AArch64][SVE] Add AArch64ISD nodes for wide add instructions (PR #115895)

[James Chesterman via llvm-commits]

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@@ -430,6 +430,22 @@ def SDT_AArch64Arith_Unpred : SDTypeProfile<1, 2, [
 
 def AArch64bic_node : SDNode<"AArch64ISD::BIC",  SDT_AArch64Arith_Unpred>;
 
+def SDT_AArch64addw : SDTypeProfile<1, 2, [SDTCisVec<0>, SDTCisVec<1>]>;
+
+def AArch64saddwt_node : SDNode<"AArch64ISD::SADDWT", SDT_AArch64addw>;
+def AArch64saddwb_node : SDNode<"AArch64ISD::SADDWB", SDT_AArch64addw>;
+def AArch64uaddwt_node : SDNode<"AArch64ISD::UADDWT", SDT_AArch64addw>;
+def AArch64uaddwb_node : SDNode<"AArch64ISD::UADDWB", SDT_AArch64addw>;
+
+def AArch64saddwt : PatFrag<(ops node:$op1, node:$op2),
+                              (AArch64saddwt_node node:$op1, node:$op2)>;
+def AArch64saddwb : PatFrag<(ops node:$op1, node:$op2),
+                              (AArch64saddwb_node node:$op1, node:$op2)>;
+def AArch64uaddwt : PatFrag<(ops node:$op1, node:$op2),
+                              (AArch64uaddwt_node node:$op1, node:$op2)>;
+def AArch64uaddwb : PatFrag<(ops node:$op1, node:$op2),
+                              (AArch64uaddwb_node node:$op1, node:$op2)>;
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JamesChesterman wrote:

Done

https://github.com/llvm/llvm-project/pull/115895