From: Erik Faye-Lund <erik.faye-lund@collabora.com>
Date: Wed, 30 Oct 2019 13:53:56 +0000 (+0100)
Subject: nir: patch up deref-vars when lowering clip-planes
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9b8964d06473bda4972c3f00ef68025bf2206c3e;p=mesa.git

nir: patch up deref-vars when lowering clip-planes

Otherwise, we fail validation and potentially generate invalid code.
Let's fix up the mode of the accesses to the variable.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
---

diff --git a/src/compiler/nir/nir_lower_clip.c b/src/compiler/nir/nir_lower_clip.c
index 81c714971b2..cf8a5d93c76 100644
--- a/src/compiler/nir/nir_lower_clip.c
+++ b/src/compiler/nir/nir_lower_clip.c
@@ -243,6 +243,7 @@ lower_clip_outputs(nir_builder *b, nir_variable *position,
          exec_node_remove(&clipvertex->node);
          clipvertex->data.mode = nir_var_shader_temp;
          exec_list_push_tail(&b->shader->globals, &clipvertex->node);
+         nir_fixup_deref_modes(b->shader);
       }
    } else {
       if (clipvertex)