Re: [PATCH] RISC-V: Add h extension support

[Jeff Law <jeffreyalaw@gmail.com>]

On 10/24/22 03:55, Kito Cheng wrote:
> `h` was the prefix of multi-letter extension name, but it become a
> extension in later RISC-V isa spec.
>
> Fortunately we don't have any extension really defined is prefixed
> with `h`, so we can just change that.
>
> gcc/ChangeLog:
>
> 	* common/config/riscv/riscv-common.cc (riscv_ext_version_table):
> 	Add `h`.
> 	(riscv_supported_std_ext): Ditto.
> 	(multi_letter_subset_rank): Remove `h`.
> 	(riscv_subset_list::parse_std_ext): Handle `h` as single letter
> 	extension.
> 	(riscv_subset_list::parse): Ditto.
>
> gcc/testsuite/ChangeLog:
>
> 	* testsuite/gcc.target/riscv/arch-18.c: New.
> 	* testsuite/gcc.target/riscv/arch-5.c: Remove test for prefixed
> 	with `h`.
> 	* testsuite/gcc.target/riscv/predef-23.c: New.

OK.


Jeff