Re: [Qemu-devel] [PATCH 13/16] tcg: Export temp_idx

["Alex Bennée" <alex.bennee@linaro.org>]

Richard Henderson <rth@twiddle.net> writes:

> At the same time, drop the TCGContext argument and use tcg_ctx instead.
>
> Signed-off-by: Richard Henderson <rth@twiddle.net>
> ---
>  tcg/tcg.c | 15 ++++-----------
>  tcg/tcg.h |  7 ++++++-
>  2 files changed, 10 insertions(+), 12 deletions(-)
>
> diff --git a/tcg/tcg.c b/tcg/tcg.c
> index f8d96fa..26931a7 100644
> --- a/tcg/tcg.c
> +++ b/tcg/tcg.c
> @@ -473,13 +473,6 @@ void tcg_func_start(TCGContext *s)
>      s->be = tcg_malloc(sizeof(TCGBackendData));
>  }
>
> -static inline int temp_idx(TCGContext *s, TCGTemp *ts)
> -{
> -    ptrdiff_t n = ts - s->temps;
> -    tcg_debug_assert(n >= 0 && n < s->nb_temps);
> -    return n;
> -}
> -
>  static inline TCGTemp *tcg_temp_alloc(TCGContext *s)
>  {
>      int n = s->nb_temps++;
> @@ -516,7 +509,7 @@ static int tcg_global_reg_new_internal(TCGContext *s, TCGType type,
>      ts->name = name;
>      tcg_regset_set_reg(s->reserved_regs, reg);
>
> -    return temp_idx(s, ts);
> +    return temp_idx(ts);
>  }
>
>  void tcg_set_frame(TCGContext *s, TCGReg reg, intptr_t start, intptr_t size)
> @@ -605,7 +598,7 @@ int tcg_global_mem_new_internal(TCGType type, TCGv_ptr base,
>          ts->mem_offset = offset;
>          ts->name = name;
>      }
> -    return temp_idx(s, ts);
> +    return temp_idx(ts);
>  }
>
>  static int tcg_temp_new_internal(TCGType type, int temp_local)
> @@ -645,7 +638,7 @@ static int tcg_temp_new_internal(TCGType type, int temp_local)
>              ts->temp_allocated = 1;
>              ts->temp_local = temp_local;
>          }
> -        idx = temp_idx(s, ts);
> +        idx = temp_idx(ts);
>      }
>
>  #if defined(CONFIG_DEBUG_TCG)
> @@ -963,7 +956,7 @@ static void tcg_reg_alloc_start(TCGContext *s)
>  static char *tcg_get_arg_str_ptr(TCGContext *s, char *buf, int buf_size,
>                                   TCGTemp *ts)
>  {
> -    int idx = temp_idx(s, ts);
> +    int idx = temp_idx(ts);
>
>      if (ts->temp_global) {
>          pstrcpy(buf, buf_size, ts->name);
> diff --git a/tcg/tcg.h b/tcg/tcg.h
> index 4f69d0c..b75a745 100644
> --- a/tcg/tcg.h
> +++ b/tcg/tcg.h
> @@ -733,13 +733,18 @@ struct TCGContext {
>  extern TCGContext tcg_ctx;
>  extern bool parallel_cpus;
>
> -static inline TCGArg temp_arg(TCGTemp *ts)
> +static inline size_t temp_idx(TCGTemp *ts)
>  {
>      ptrdiff_t n = ts - tcg_ctx.temps;
>      tcg_debug_assert(n >= 0 && n < tcg_ctx.nb_temps);
>      return n;
>  }
>
> +static inline TCGArg temp_arg(TCGTemp *ts)
> +{
> +    return temp_idx(ts);
> +}

I'm confused at the dropping of TCGArg in favour of size_t only for
temp_arg to implicitly cast it back. Was this meant to be part of
another patch?

> +
>  static inline TCGTemp *arg_temp(TCGArg a)
>  {
>      return a == TCG_CALL_DUMMY_ARG ? NULL : &tcg_ctx.temps[a];


--
Alex Bennée