Do you want to call it at (outermost) RET opcode (if any) instead?
tgsi is kinda undecided if there should be a ret opcode in main but
sometimes there is...
Roland
Am 22.09.2014 17:44, schrieb Brian Paul:
> We want to call the caller's epilog callback when we find the TGSI
> END instruction, not after it.
> ---
> src/gallium/auxiliary/tgsi/tgsi_transform.c | 19 ++++++++++++-------
> 1 file changed, 12 insertions(+), 7 deletions(-)
>
> diff --git a/src/gallium/auxiliary/tgsi/tgsi_transform.c
> b/src/gallium/auxiliary/tgsi/tgsi_transform.c
> index 93e5b98..5a5f56c 100644
> --- a/src/gallium/auxiliary/tgsi/tgsi_transform.c
> +++ b/src/gallium/auxiliary/tgsi/tgsi_transform.c
> @@ -171,10 +171,19 @@ tgsi_transform_shader(const struct tgsi_token
> *tokens_in,
> ctx->prolog(ctx);
> }
>
> - if (ctx->transform_instruction)
> - ctx->transform_instruction(ctx, fullinst);
> - else
> + if (fullinst->Instruction.Opcode == TGSI_OPCODE_END
> + && ctx->epilog) {
> + /* Emit caller's epilog */
> + ctx->epilog(ctx);
> + /* Emit END */
> ctx->emit_instruction(ctx, fullinst);
> + }
> + else {
> + if (ctx->transform_instruction)
> + ctx->transform_instruction(ctx, fullinst);
> + else
> + ctx->emit_instruction(ctx, fullinst);
> + }
>
> first_instruction = FALSE;
> }
> @@ -220,10 +229,6 @@ tgsi_transform_shader(const struct tgsi_token *tokens_in,
> }
> }
>
> - if (ctx->epilog) {
> - ctx->epilog(ctx);
> - }
> -
> tgsi_parse_free (&parse);
>
> return ctx->ti;
>
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