Re: [PATCH 04/38] target/riscv: 16-bit Addition & Subtraction Instructions

[Richard Henderson]

On 2/12/21 7:02 AM, LIU Zhiwei wrote:
> +    if (a->rd && a->rs1 && a->rs2) {
> +#ifdef TARGET_RISCV64
> +        f64(vece, offsetof(CPURISCVState, gpr[a->rd]),
> +            offsetof(CPURISCVState, gpr[a->rs1]),
> +            offsetof(CPURISCVState, gpr[a->rs2]),
> +            8, 8);
> +#else

This is not legal tcg.

You cannot reference as memory anything which has an associated tcg_global_mem.
 Which is true for all of the gprs -- see riscv_translate_init.


r~