[PATCH] D131087: [RISCV] Implement isUsedByReturnOnly TargetLowering hook in order to tailcall more libcalls

[Philip Reames via Phabricator via llvm-commits]

reames accepted this revision.
reames added a comment.
This revision is now accepted and ready to land.

LGTM w/minor comment



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Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:11791
+
+  SDValue TCChain = Chain;
+  SDNode *Copy = *N->use_begin();
----------------
It doesn't look like this variable is ever used.  Delete it, and just assign Chain directly on return.  


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  https://reviews.llvm.org/D131087/new/

https://reviews.llvm.org/D131087