nir/print: Factor variable name lookup into a helper

[mesa.git] / src / glsl / ir_variable_refcount.h

diff --git a/src/glsl/ir_variable_refcount.h b/src/glsl/ir_variable_refcount.h
index 03fa7b5b4670b045157a0a0e18e26be3ffcd8791..5c74c314781ba2849144d37217cc30f4a6145164 100644 (file)
--- a/src/glsl/ir_variable_refcount.h
+++ b/src/glsl/ir_variable_refcount.h
@@ -33,13 +33,24 @@
 #include "ir_visitor.h"
 #include "glsl_types.h"
 
+struct assignment_entry {
+   exec_node link;
+   ir_assignment *assign;
+};
+
 class ir_variable_refcount_entry
 {
 public:
    ir_variable_refcount_entry(ir_variable *var);
 
    ir_variable *var; /* The key: the variable's pointer. */
-   ir_assignment *assign; /* An assignment to the variable, if any */
+
+   /**
+    * List of assignments to the variable, if any.
+    * This is intended to be used for dead code optimisation and may
+    * not be a complete list.
+    */
+   exec_list assign_list;
 
    /** Number of times the variable is referenced, including assignments. */
    unsigned referenced_count;
@@ -60,7 +71,6 @@ public:
 
    virtual ir_visitor_status visit_enter(ir_function_signature *);
    virtual ir_visitor_status visit_leave(ir_assignment *);
-   virtual ir_visitor_status visit_leave(ir_loop *);
 
    ir_variable_refcount_entry *get_variable_entry(ir_variable *var);