[Mesa-dev] [PATCH 12/12] i965/fs: Check variable_storage return value in fs_visitor::visit

[Juha-Pekka Heikkila]

check variable_storage() found the requested fs_reg.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index ce6d3da..f0a84f9 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -151,6 +151,12 @@ void
 fs_visitor::visit(ir_dereference_variable *ir)
 {
    fs_reg *reg = variable_storage(ir->var);
+
+   if (!reg) {
+      fail("Failed to find variable storage for %s\n", ir->var->name);
+      this->result = fs_reg(reg_null_d);
+      return;
+   }
    this->result = *reg;
 }
 
-- 
1.8.1.2