[Mesa-dev] [PATCH] tgsi: remove unused tgsi_is_passthrough_shader()

[tournier.elie]

On 23 May 2017 at 14:31, Samuel Pitoiset <samuel.pitoiset at gmail.com> wrote:
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Elie Tournier <elie.tournier at collabora.com>

> ---
>  src/gallium/auxiliary/tgsi/tgsi_scan.c | 76 ----------------------------------
>  src/gallium/auxiliary/tgsi/tgsi_scan.h |  3 --
>  2 files changed, 79 deletions(-)
>
> diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
> index d1ef769ec4d..847f4fce28f 100644
> --- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
> +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
> @@ -891,79 +891,3 @@ tgsi_scan_arrays(const struct tgsi_token *tokens,
>
>     return;
>  }
> -
> -
> -/**
> - * Check if the given shader is a "passthrough" shader consisting of only
> - * MOV instructions of the form:  MOV OUT[n], IN[n]
> - *
> - */
> -boolean
> -tgsi_is_passthrough_shader(const struct tgsi_token *tokens)
> -{
> -   struct tgsi_parse_context parse;
> -
> -   /**
> -    ** Setup to begin parsing input shader
> -    **/
> -   if (tgsi_parse_init(&parse, tokens) != TGSI_PARSE_OK) {
> -      debug_printf("tgsi_parse_init() failed in tgsi_is_passthrough_shader()!\n");
> -      return FALSE;
> -   }
> -
> -   /**
> -    ** Loop over incoming program tokens/instructions
> -    */
> -   while (!tgsi_parse_end_of_tokens(&parse)) {
> -
> -      tgsi_parse_token(&parse);
> -
> -      switch (parse.FullToken.Token.Type) {
> -      case TGSI_TOKEN_TYPE_INSTRUCTION:
> -         {
> -            struct tgsi_full_instruction *fullinst =
> -               &parse.FullToken.FullInstruction;
> -            const struct tgsi_full_src_register *src =
> -               &fullinst->Src[0];
> -            const struct tgsi_full_dst_register *dst =
> -               &fullinst->Dst[0];
> -
> -            /* Do a whole bunch of checks for a simple move */
> -            if (fullinst->Instruction.Opcode != TGSI_OPCODE_MOV ||
> -                (src->Register.File != TGSI_FILE_INPUT &&
> -                 src->Register.File != TGSI_FILE_SYSTEM_VALUE) ||
> -                dst->Register.File != TGSI_FILE_OUTPUT ||
> -                src->Register.Index != dst->Register.Index ||
> -
> -                src->Register.Negate ||
> -                src->Register.Absolute ||
> -
> -                src->Register.SwizzleX != TGSI_SWIZZLE_X ||
> -                src->Register.SwizzleY != TGSI_SWIZZLE_Y ||
> -                src->Register.SwizzleZ != TGSI_SWIZZLE_Z ||
> -                src->Register.SwizzleW != TGSI_SWIZZLE_W ||
> -
> -                dst->Register.WriteMask != TGSI_WRITEMASK_XYZW)
> -            {
> -               tgsi_parse_free(&parse);
> -               return FALSE;
> -            }
> -         }
> -         break;
> -
> -      case TGSI_TOKEN_TYPE_DECLARATION:
> -         /* fall-through */
> -      case TGSI_TOKEN_TYPE_IMMEDIATE:
> -         /* fall-through */
> -      case TGSI_TOKEN_TYPE_PROPERTY:
> -         /* fall-through */
> -      default:
> -         ; /* no-op */
> -      }
> -   }
> -
> -   tgsi_parse_free(&parse);
> -
> -   /* if we get here, it's a pass-through shader */
> -   return TRUE;
> -}
> diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h
> index 98387c982c6..af1651b7e82 100644
> --- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
> +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
> @@ -196,9 +196,6 @@ tgsi_scan_arrays(const struct tgsi_token *tokens,
>                   unsigned max_array_id,
>                   struct tgsi_array_info *arrays);
>
> -extern boolean
> -tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
> -
>  #ifdef __cplusplus
>  } // extern "C"
>  #endif
> --
> 2.13.0
>
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