[Mesa-stable] [Mesa-dev] [PATCH] ac/nir: set lod to 0 when it's unused

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Thu, Apr 26, 2018 at 6:17 AM, Samuel Pitoiset <samuel.pitoiset at gmail.com>
wrote:

> Otherwise we hit an assertion in ac_build_image_opcode()
> for ac_image_load_mip.
>
> Fixes: 24fb3e6aa16 ("ac/nir: use ac_build_image_opcode for image
> intrinsics")
> Cc: 18.1 <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
> ---
>  src/amd/common/ac_nir_to_llvm.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_
> llvm.c
> index e4ae6ef49ad..08ee81611e3 100644
> --- a/src/amd/common/ac_nir_to_llvm.c
> +++ b/src/amd/common/ac_nir_to_llvm.c
> @@ -1276,6 +1276,8 @@ static LLVMValueRef build_tex_intrinsic(struct
> ac_nir_context *ctx,
>                 args->opcode = args->level_zero ||
>                                instr->sampler_dim == GLSL_SAMPLER_DIM_MS ?
>                                         ac_image_load : ac_image_load_mip;
> +               if (!args->lod)
> +                       args->lod = ctx->ac.i32_0;
>                 args->level_zero = false;
>                 break;
>         case nir_texop_txs:
> --
> 2.17.0
>
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