further corrections on 'COMMON' semantic

[r27034]

diff --git a/ast2firm.c b/ast2firm.c
index 764ea68..7e99d62 100644 (file)
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -4540,18 +4540,20 @@ static void create_global_variable(entity_t *entity)
        switch ((storage_class_tag_t)entity->declaration.storage_class) {
        case STORAGE_CLASS_STATIC: linkage |= IR_LINKAGE_LOCAL; break;
        case STORAGE_CLASS_EXTERN: linkage |= IR_LINKAGE_EXTERN; break;
+       case STORAGE_CLASS_NONE:
+               /* uninitialized globals get merged in C */
+               if (entity->variable.initializer == NULL)
+                       linkage |= IR_LINKAGE_MERGE;
+               break;
        case STORAGE_CLASS_TYPEDEF:
        case STORAGE_CLASS_AUTO:
        case STORAGE_CLASS_REGISTER:
-       case STORAGE_CLASS_NONE:   break;
+               break;
        }
 
        ir_type *var_type = entity->variable.thread_local ?
                get_tls_type() : get_glob_type();
        create_variable_entity(entity, DECLARATION_KIND_GLOBAL_VARIABLE, var_type);
-       /* uninitialized globals get merged in C */
-       if (entity->variable.initializer == NULL)
-               linkage |= IR_LINKAGE_MERGE;
        add_entity_linkage(entity->variable.v.entity, linkage);
 }