[Mesa-dev] [PATCH] nir: avoid segfault when ssa src not found

[Jason Ekstrand]

Seems reasonable.  R-B

On Aug 21, 2016 1:32 AM, "Timothy Arceri" <timothy.arceri at collabora.com>
wrote:

> Without this the following line will segfault and we don't get to
> see the results of the validate_assert() above.
> ---
>  src/compiler/nir/nir_validate.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/src/compiler/nir/nir_validate.c b/src/compiler/nir/nir_
> validate.c
> index d9801b5..9d1566c 100644
> --- a/src/compiler/nir/nir_validate.c
> +++ b/src/compiler/nir/nir_validate.c
> @@ -173,6 +173,9 @@ validate_ssa_src(nir_src *src, validate_state *state)
>
>     validate_assert(state, entry);
>
> +   if (!entry)
> +      return;
> +
>     ssa_def_validate_state *def_state = (ssa_def_validate_state
> *)entry->data;
>
>     validate_assert(state, def_state->where_defined == state->impl &&
> --
> 2.7.4
>
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