[#llvm-SDNodeInfo]
= xref:llvm.adoc[llvm]::SDNodeInfo
:relfileprefix: ../
:mrdocs:

Generated descriptions and helpers for target‐specific SelectionDAG nodes.

== Synopsis

Declared in `<llvm/CodeGen/SDNodeInfo.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class SDNodeInfo final
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/SDNodeInfo/2constructor.adoc[`SDNodeInfo`]         [.small]#[constructor]#
| Construct from generated opcode count, descriptions, names, and tables.
| xref:llvm/SDNodeInfo/getConstraints.adoc[`getConstraints`] 
| Returns operand constraints for a node with the given opcode.
| xref:llvm/SDNodeInfo/getDesc.adoc[`getDesc`] 
| Returns the description of a node with the given opcode.
| xref:llvm/SDNodeInfo/getName.adoc[`getName`] 
| Returns the name of the given target‐specific opcode, suitable for debug printing.
| xref:llvm/SDNodeInfo/hasDesc.adoc[`hasDesc`] 
| Returns true if there is a generated description for a node with the given target‐specific opcode.
| xref:llvm/SDNodeInfo/verifyNode.adoc[`verifyNode`] 
| Verify that `N` matches its generated description in `DAG.`
|===



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