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glsl2: Fix the linked version of ir_dead_code.

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If we don't walk into functions, we won't see any usage of variables
in the functions.
This commit is contained in:
Eric Anholt
2010-07-27 11:29:17 -07:00
parent 66d4c65ee2
commit 5532c4ca69
1 changed files with 6 additions and 3 deletions
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src/glsl/ir_dead_code.cpp
+6 -3
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@@ -61,7 +61,7 @@ public:
virtual ir_visitor_status visit(ir_variable *);
virtual ir_visitor_status visit(ir_dereference_variable *);
virtual ir_visitor_status visit_enter(ir_function *);
virtual ir_visitor_status visit_enter(ir_function_signature *);
virtual ir_visitor_status visit_leave(ir_assignment *);
variable_entry *get_variable_entry(ir_variable *var);
@@ -116,9 +116,12 @@ ir_dead_code_visitor::visit(ir_dereference_variable *ir)
ir_visitor_status
ir_dead_code_visitor::visit_enter(ir_function *ir)
ir_dead_code_visitor::visit_enter(ir_function_signature *ir)
{
(void) ir;
/* We don't want to descend into the function parameters and
* dead-code eliminate them, so just accept the body here.
*/
visit_list_elements(this, &ir->body);
return visit_continue_with_parent;
}