2ca89224b1
Add new .option `csr-check/no-csr-check` and GAS option `-mcsr-check /-mno-csr-check` to enbale/disable the CSR checking. Disable the CSR checking by default. gas/ * config/tc-riscv.c: Add new .option and GAS options to enbale/disable the CSR checking. We disable the CSR checking by default. (reg_lookup_internal): Check the `riscv_opts.csr_check` before we doing the CSR checking. * doc/c-riscv.texi: Add description for the new .option and assembler options. * testsuite/gas/riscv/priv-reg-fail-fext.d: Add `-mcsr-check` to enable the CSR checking. * testsuite/gas/riscv/priv-reg-fail-rv32-only.d: Likewise.