[all-commits] [llvm/llvm-project] fbace9: [RISCV] Enable preferZeroCompareBranch to optimize...

[Liao Chunyu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fbace954089013c925d51421a59fac6ddb5ef97a
      https://github.com/llvm/llvm-project/commit/fbace954089013c925d51421a59fac6ddb5ef97a
  Author: LiaoChunyu <chunyu at iscas.ac.cn>
  Date:   2023-02-28 (Tue, 28 Feb 2023)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.h
    M llvm/test/CodeGen/RISCV/branch-on-zero.ll

  Log Message:
  -----------
  [RISCV] Enable preferZeroCompareBranch to optimize branch on zero in codegenprepare

Similar to ARM and SystemZ.

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

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D142071