Re: [Qemu-devel] [PATCH] target/ppc: Use tcg_gen_gvec_bitsel

[David Gibson]

On Mon, Jun 03, 2019 at 11:49:27AM -0500, Richard Henderson wrote:
> Replace the target-specific implementation of XXSEL.

Applied, thanks.

> 
> Signed-off-by: Richard Henderson <address@hidden>
> ---
>  target/ppc/translate/vsx-impl.inc.c | 24 ++----------------------
>  1 file changed, 2 insertions(+), 22 deletions(-)
> 
> diff --git a/target/ppc/translate/vsx-impl.inc.c 
> b/target/ppc/translate/vsx-impl.inc.c
> index 199d22da97..a7a0a88975 100644
> --- a/target/ppc/translate/vsx-impl.inc.c
> +++ b/target/ppc/translate/vsx-impl.inc.c
> @@ -1338,28 +1338,8 @@ static void glue(gen_, name)(DisasContext *ctx)        
>      \
>  VSX_XXMRG(xxmrghw, 1)
>  VSX_XXMRG(xxmrglw, 0)
>  
> -static void xxsel_i64(TCGv_i64 t, TCGv_i64 a, TCGv_i64 b, TCGv_i64 c)
> -{
> -    tcg_gen_and_i64(b, b, c);
> -    tcg_gen_andc_i64(a, a, c);
> -    tcg_gen_or_i64(t, a, b);
> -}
> -
> -static void xxsel_vec(unsigned vece, TCGv_vec t, TCGv_vec a,
> -                      TCGv_vec b, TCGv_vec c)
> -{
> -    tcg_gen_and_vec(vece, b, b, c);
> -    tcg_gen_andc_vec(vece, a, a, c);
> -    tcg_gen_or_vec(vece, t, a, b);
> -}
> -
>  static void gen_xxsel(DisasContext *ctx)
>  {
> -    static const GVecGen4 g = {
> -        .fni8 = xxsel_i64,
> -        .fniv = xxsel_vec,
> -        .vece = MO_64,
> -    };
>      int rt = xT(ctx->opcode);
>      int ra = xA(ctx->opcode);
>      int rb = xB(ctx->opcode);
> @@ -1369,8 +1349,8 @@ static void gen_xxsel(DisasContext *ctx)
>          gen_exception(ctx, POWERPC_EXCP_VSXU);
>          return;
>      }
> -    tcg_gen_gvec_4(vsr_full_offset(rt), vsr_full_offset(ra),
> -                   vsr_full_offset(rb), vsr_full_offset(rc), 16, 16, &g);
> +    tcg_gen_gvec_bitsel(MO_64, vsr_full_offset(rt), vsr_full_offset(rc),
> +                        vsr_full_offset(rb), vsr_full_offset(ra), 16, 16);
>  }
>  
>  static void gen_xxspltw(DisasContext *ctx)

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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