@@ -1,4 +1,4 @@
-e86f2cb5d6b1984fde345d6ade605e377fa38c04
+8b9c7fb00ccaf1d4bcc8d581a1a4d46a35771b77
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.
@@ -1622,16 +1622,31 @@ Gogo::write_globals()
// The initializer is constant if it is the zero-value of the
// variable's type or if the initial value is an immutable value
// that is not copied to the heap.
- bool is_static_initializer = false;
- if (var->init() == NULL)
+ Expression* init = var->init();
+
+ // If we see "a = b; b = x", and x is a static
+ // initializer, just set a to x.
+ while (init != NULL && init->var_expression() != NULL)
+ {
+ Named_object* ino = init->var_expression()->named_object();
+ if (!ino->is_variable() || ino->package() != NULL)
+ break;
+ Expression* ino_init = ino->var_value()->init();
+ if (ino->var_value()->has_pre_init()
+ || ino_init == NULL
+ || !ino_init->is_static_initializer())
+ break;
+ init = ino_init;
+ }
+
+ bool is_static_initializer;
+ if (init == NULL)
is_static_initializer = true;
else
{
Type* var_type = var->type();
- Expression* init = var->init();
- Expression* init_cast =
- Expression::make_cast(var_type, init, var->location());
- is_static_initializer = init_cast->is_static_initializer();
+ init = Expression::make_cast(var_type, init, var->location());
+ is_static_initializer = init->is_static_initializer();
}
// Non-constant variable initializations might need to create
@@ -1650,7 +1665,15 @@ Gogo::write_globals()
}
var_init_fn = init_fndecl;
}
- Bexpression* var_binit = var->get_init(this, var_init_fn);
+
+ Bexpression* var_binit;
+ if (init == NULL)
+ var_binit = NULL;
+ else
+ {
+ Translate_context context(this, var_init_fn, NULL, NULL);
+ var_binit = init->get_backend(&context);
+ }
if (var_binit == NULL)
;