[PATCH] D142071: [RISCV] Enable preferZeroCompareBranch to optimize branch on zero in codegenprepare

[Liao Chunyu via Phabricator via llvm-commits]

liaolucy created this revision.
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Similar to ARM and SystemZ.

Related Patchs: D101778 <https://reviews.llvm.org/D101778>(preferZeroCompareBranch) 
https://reviews.llvm.org/rG9a9421a461166482465e786a46f8cced63cd2e9f（== 0 to u< 1）


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142071

Files:
  llvm/test/CodeGen/RISCV/branch-on-zero.ll

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