From: Eric Anholt <eric@anholt.net>
Date: Wed, 26 Sep 2018 18:33:09 +0000 (-0700)
Subject: nir: Be sure to fix deref modes after demoting shader i/o vars to global.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b788ab6d5c8e87743c345ee8c6131db628b87a8e;p=mesa.git

nir: Be sure to fix deref modes after demoting shader i/o vars to global.

Fixes assertion failures when calling nir_remove_unused_varyings() or
nir_remove_unused_io_vars().

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
---

diff --git a/src/compiler/nir/nir_linking_helpers.c b/src/compiler/nir/nir_linking_helpers.c
index 85712a7cb1c..7446bb826f9 100644
--- a/src/compiler/nir/nir_linking_helpers.c
+++ b/src/compiler/nir/nir_linking_helpers.c
@@ -126,6 +126,9 @@ remove_unused_io_vars(nir_shader *shader, struct exec_list *var_list,
       }
    }
 
+   if (progress)
+      nir_fixup_deref_modes(shader);
+
    return progress;
 }