[Mesa-dev] [PATCH 3/3] nir: handle shared pointers in lowering indirect derefs.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

Check if the base ends up with no variable, and continue
if we see that case outside the loop.
---
 src/compiler/nir/nir_lower_indirect_derefs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler/nir/nir_lower_indirect_derefs.c b/src/compiler/nir/nir_lower_indirect_derefs.c
index 897a0620872..3d6452ac847 100644
--- a/src/compiler/nir/nir_lower_indirect_derefs.c
+++ b/src/compiler/nir/nir_lower_indirect_derefs.c
@@ -141,8 +141,12 @@ lower_indirect_derefs_block(nir_block *block, nir_builder *b,
             has_indirect = true;
 
          base = nir_deref_instr_parent(base);
+         if (base == NULL)
+            break;
       }
 
+      if (base == NULL)
+         continue;
       if (!has_indirect)
          continue;
 
-- 
2.17.2