[all-commits] [llvm/llvm-project] d0bafb: [RISCV] Add coverage for zext.w/h interaction with...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d0bafb5435d5ebd90cdf965a9b35bdfa05dde23b
      https://github.com/llvm/llvm-project/commit/d0bafb5435d5ebd90cdf965a9b35bdfa05dde23b
  Author: Philip Reames <preames at rivosinc.com>
  Date:   2024-05-09 (Thu, 09 May 2024)

  Changed paths:
    M llvm/test/CodeGen/RISCV/rv64zba.ll

  Log Message:
  -----------
  [RISCV] Add coverage for zext.w/h interaction with shift transforms

Two cases where folding the and (which could be a zext.w) through
shifts in generic DAG result in net worse code quality.  And one
negative case where keeping a zext.h would result in a longer
critical path.



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