glsl: Add assert to check variable_entry referenced_count after construction.
A variable_entry after construction should have its referenced_count
member set to 0. However, occassionally this isn't the case and
entry->referenced_count has been observed to be a garbage value. This
leads to crashes of several tests in the Piglit test suite.
This patch adds an assert to check that a variable_entry instance has
its referenced_count member initialized to 0 after construction.
diff --git a/src/glsl/ir_variable_refcount.cpp b/src/glsl/ir_variable_refcount.cpp
index 20c2f66..6614727 100644
--- a/src/glsl/ir_variable_refcount.cpp
+++ b/src/glsl/ir_variable_refcount.cpp
@@ -45,6 +45,7 @@
}
variable_entry *entry = new(mem_ctx) variable_entry(var);
+ assert(entry->referenced_count == 0);
this->variable_list.push_tail(entry);
return entry;
}