Re: [PATCH 1/3] RISC-V: Minimal support of zfinx extension

[Kito Cheng <kito.cheng@gmail.com>]

Could you add the information about zdinx implied zfinx to riscv_implied_info_t?

Thanks!

On Thu, Oct 28, 2021 at 9:56 PM jiawei <jiawei@iscas.ac.cn> wrote:
>
> Co-Authored-By: sinan <sinan@isrc.iscas.ac.cn>
> ---
>  gcc/common/config/riscv/riscv-common.c | 6 ++++++
>  gcc/config/riscv/riscv-opts.h          | 6 ++++++
>  gcc/config/riscv/riscv.opt             | 3 +++
>  3 files changed, 15 insertions(+)
>
> diff --git a/gcc/common/config/riscv/riscv-common.c b/gcc/common/config/riscv/riscv-common.c
> index 37b6ea80086..ab48909e338 100644
> --- a/gcc/common/config/riscv/riscv-common.c
> +++ b/gcc/common/config/riscv/riscv-common.c
> @@ -106,6 +106,9 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
>    {"zbc", ISA_SPEC_CLASS_NONE, 1, 0},
>    {"zbs", ISA_SPEC_CLASS_NONE, 1, 0},
>
> +  {"zfinx", ISA_SPEC_CLASS_NONE, 1, 0},
> +  {"zdinx", ISA_SPEC_CLASS_NONE, 1, 0},
> +
>    /* Terminate the list.  */
>    {NULL, ISA_SPEC_CLASS_NONE, 0, 0}
>  };
> @@ -916,6 +919,9 @@ static const riscv_ext_flag_table_t riscv_ext_flag_table[] =
>    {"zbc",    &gcc_options::x_riscv_zb_subext, MASK_ZBC},
>    {"zbs",    &gcc_options::x_riscv_zb_subext, MASK_ZBS},
>
> +  {"zfinx",    &gcc_options::x_riscv_zf_subext, MASK_ZFINX},
> +  {"zdinx",    &gcc_options::x_riscv_zf_subext, MASK_ZDINX},
> +
>    {NULL, NULL, 0}
>  };
>
> diff --git a/gcc/config/riscv/riscv-opts.h b/gcc/config/riscv/riscv-opts.h
> index 2efc4b80f1f..5a790a028cf 100644
> --- a/gcc/config/riscv/riscv-opts.h
> +++ b/gcc/config/riscv/riscv-opts.h
> @@ -83,4 +83,10 @@ enum stack_protector_guard {
>  #define TARGET_ZBC    ((riscv_zb_subext & MASK_ZBC) != 0)
>  #define TARGET_ZBS    ((riscv_zb_subext & MASK_ZBS) != 0)
>
> +#define MASK_ZFINX      (1 << 0)
> +#define MASK_ZDINX      (1 << 1)
> +
> +#define TARGET_ZFINX    ((riscv_zf_subext & MASK_ZFINX) != 0)
> +#define TARGET_ZDINX    ((riscv_zf_subext & MASK_ZDINX) != 0)
> +
>  #endif /* ! GCC_RISCV_OPTS_H */
> diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt
> index 15bf89e17c2..54d27747eff 100644
> --- a/gcc/config/riscv/riscv.opt
> +++ b/gcc/config/riscv/riscv.opt
> @@ -198,6 +198,9 @@ int riscv_zi_subext
>  TargetVariable
>  int riscv_zb_subext
>
> +TargetVariable
> +int riscv_zf_subext
> +
>  Enum
>  Name(isa_spec_class) Type(enum riscv_isa_spec_class)
>  Supported ISA specs (for use with the -misa-spec= option):
> --
> 2.25.1
>