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-rw-r--r--src/glsl/ast_function.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/glsl/ast_function.cpp b/src/glsl/ast_function.cpp
index 855f27f175..bb45e2530d 100644
--- a/src/glsl/ast_function.cpp
+++ b/src/glsl/ast_function.cpp
@@ -122,6 +122,8 @@ process_call(exec_list *instructions, ir_function *f,
deref = new(ctx) ir_dereference_variable(var);
ir_assignment *assign = new(ctx) ir_assignment(deref, call, NULL);
instructions->push_tail(assign);
+ if (state->language_version >= 120)
+ var->constant_value = call->constant_expression_value();
deref = new(ctx) ir_dereference_variable(var);
return deref;