[Mesa-stable] [PATCH 5/9] glsl: Only set ir_variable::constant_value for const-decorated variables

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

Right now we're also setting for uniforms, and that doesn't seem to hurt
things.  The next patch will make general global variables in GLSL ES,
and those definitely should not have constant_value set!

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
Cc: "10.6 11.0" <mesa-stable at lists.freedesktop.org>
---
 src/glsl/ast_to_hir.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 9511440..e3d4c44 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -3238,17 +3238,20 @@ process_initializer(ir_variable *var, ast_declaration *decl,
                                 decl->identifier);
                if (var->type->is_numeric()) {
                   /* Reduce cascading errors. */
-                  var->constant_value = ir_constant::zero(state, var->type);
+                  var->constant_value = type->qualifier.flags.q.constant
+                     ? ir_constant::zero(state, var->type) : NULL;
                }
             }
          } else {
             rhs = constant_value;
-            var->constant_value = constant_value;
+            var->constant_value = type->qualifier.flags.q.constant
+               ? constant_value : NULL;
          }
       } else {
          if (var->type->is_numeric()) {
             /* Reduce cascading errors. */
-            var->constant_value = ir_constant::zero(state, var->type);
+            var->constant_value = type->qualifier.flags.q.constant
+               ? ir_constant::zero(state, var->type) : NULL;
          }
       }
    }
-- 
2.1.0