[PATCH] D141257: [LoongArch] Implement mayBeEmittedAsTailCall for tail call optimization

[wanglei via Phabricator via llvm-commits]

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Implements TargetLowering callback `mayBeEmittedAsTailCall` that enables
CodeGenPrepare to duplicate returns when they might enable a tail-call.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D141257

Files:
  llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
  llvm/lib/Target/LoongArch/LoongArchISelLowering.h
  llvm/test/CodeGen/LoongArch/bnez-beqz.ll
  llvm/test/CodeGen/LoongArch/duplicate-returns-for-tailcall.ll

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