[llvm] [RFC][RISCV] Support the large code model. (PR #70308)

[Wang Pengcheng via llvm-commits]

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@@ -6431,6 +6432,44 @@ static SDValue getTargetNode(JumpTableSDNode *N, const SDLoc &DL, EVT Ty,
   return DAG.getTargetJumpTable(N->getIndex(), Ty, Flags);
 }
 
+static SDValue getTargetNode(ExternalSymbolSDNode *N, SDLoc DL, EVT Ty,
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wangpc-pp wrote:

What's this fucntion for?

https://github.com/llvm/llvm-project/pull/70308