[PATCH 2/2] RISC-V: Add Zcb extension testcases.

[Jan Beulich]

On 13.06.2023 15:38, Jiawei wrote:
> Add all zcb instructions testcases. Fail testcases check missing depend
> extensions cases.
> 
> Co-Authored by: Charlie Keaney <charlie.keaney@embecosm.com>
> Co-Authored by: Mary Bennett <mary.bennett@embecosm.com>
> Co-Authored by: Nandni Jamnadas <nandni.jamnadas@embecosm.com>
> Co-Authored by: Sinan Lin <sinan.lin@linux.alibaba.com>
> Co-Authored by: Simon Cook <simon.cook@embecosm.com>
> Co-Authored by: Shihua Liao <shihua@iscas.ac.cn>
> Co-Authored by: Yulong Shi <yulong@iscas.ac.cn>
> 
> gas/ChangeLog:
> 
>         * testsuite/gas/riscv/zc-zcb-fail-arch-0.d: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-arch-0.l: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-arch-0.s: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-arch-1.d: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-arch-1.l: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-arch-1.s: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-operand-0.d: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-operand-0.l: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-operand-0.s: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-operand-1.d: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-operand-1.l: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-operand-1.s: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-xlen.d: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-xlen.l: New test.
>         * testsuite/gas/riscv/zc-zcb-fail-xlen.s: New test.
>         * testsuite/gas/riscv/zc-zcb-lbu.d: New test.
>         * testsuite/gas/riscv/zc-zcb-lbu.s: New test.
>         * testsuite/gas/riscv/zc-zcb-lh.d: New test.
>         * testsuite/gas/riscv/zc-zcb-lh.s: New test.
>         * testsuite/gas/riscv/zc-zcb-lhu.d: New test.
>         * testsuite/gas/riscv/zc-zcb-lhu.s: New test.
>         * testsuite/gas/riscv/zc-zcb-mul.d: New test.
>         * testsuite/gas/riscv/zc-zcb-mul.s: New test.
>         * testsuite/gas/riscv/zc-zcb-not.d: New test.
>         * testsuite/gas/riscv/zc-zcb-not.s: New test.
>         * testsuite/gas/riscv/zc-zcb-sb.d: New test.
>         * testsuite/gas/riscv/zc-zcb-sb.s: New test.
>         * testsuite/gas/riscv/zc-zcb-sext-b.s: New test.
>         * testsuite/gas/riscv/zc-zcb-sext-h.s: New test.
>         * testsuite/gas/riscv/zc-zcb-sextw.d: New test.
>         * testsuite/gas/riscv/zc-zcb-sextw.s: New test.
>         * testsuite/gas/riscv/zc-zcb-sh.d: New test.
>         * testsuite/gas/riscv/zc-zcb-sh.s: New test.
>         * testsuite/gas/riscv/zc-zcb-test-arch-gc.d: New test.
>         * testsuite/gas/riscv/zc-zcb-test-arch-no-zcb.d: New test.
>         * testsuite/gas/riscv/zc-zcb-test-arch.s: New test.
>         * testsuite/gas/riscv/zc-zcb-test-operand-0.d: New test.
>         * testsuite/gas/riscv/zc-zcb-test-operand-0.s: New test.
>         * testsuite/gas/riscv/zc-zcb-test-operand-1.d: New test.
>         * testsuite/gas/riscv/zc-zcb-test-operand-1.s: New test.
>         * testsuite/gas/riscv/zc-zcb-test-operand-2.d: New test.
>         * testsuite/gas/riscv/zc-zcb-test-operand-2.s: New test.
>         * testsuite/gas/riscv/zc-zcb-zext-b.d: New test.
>         * testsuite/gas/riscv/zc-zcb-zext-b.s: New test.
>         * testsuite/gas/riscv/zc-zcb-zext-h.d: New test.
>         * testsuite/gas/riscv/zc-zcb-zext-h.s: New test.
>         * testsuite/gas/riscv/zc-zcb-zextw.d: New test.
>         * testsuite/gas/riscv/zc-zcb-zextw.s: New test.

While I'm not a RISC-V maintainer, I still wonder about the overhead
of having a single test per insn (rather than e.g. per feature or
relevant combination of features): In my experience many small tests
consume more time (and space) when running the testsuite than fewer
larger ones. (This remark would then also apply to the earlier series
consisting of just testsuite additions.)

Jan