[RISCV] Add bitreverse tests to bswap-ctlz-cttz-ctpop.ll. Add Zbb command lines. NFC

Rename to include bitreverse. Add additional tests and Zbb command lines. There's some overlapping tests with rv32zbb.ll and rv64zbb.ll. Maybe I'll clean that up in a future patch.

[RISCV] Add bitreverse tests to bswap-ctlz-cttz-ctpop.ll. Add Zbb command lines. NFC
Rename to include bitreverse. Add additional tests and Zbb command lines. There's some overlapping tests with rv32zbb.ll and rv64zbb.ll. Maybe I'll clean that up in a future patch.
88f33cff · Craig Topper · 4762c077 · 88f33cff
Commit 88f33cff authored Jan 23, 2022 by Craig Topper
--- a/llvm/test/CodeGen/RISCV/bswap-ctlz-cttz-ctpop.ll
+++ b/llvm/test/CodeGen/RISCV/bswap-ctlz-cttz-ctpop.ll