[PATCH] D136010: [RISCV] Don't emit zero check in CTTZTableLookup for CTTZ_ZERO_UNDEF.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
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The code incorrectly checked for CTLZ_ZERO_UNDEF instead of
CTTZ_ZERO_UNDEF.

While I was there I flipped the condition into an early out.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D136010

Files:
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/test/CodeGen/RISCV/ctlz-cttz-ctpop.ll
  llvm/test/CodeGen/RISCV/rv32zbb.ll
  llvm/test/CodeGen/RISCV/rv64zbb.ll
  llvm/test/CodeGen/SPARC/cttz.ll

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