Enforce IR_LINKAGE_NO_CODEGEN for initializers too.

include/libfirm/typerep.h

@@ -155,9 +155,10 @@ typedef enum ir_linkage {
 	 */
 	IR_LINKAGE_HIDDEN_USER     = 1 << 4,
 	/**
-	 * Do not generate code even if the entity has a graph attached. The graph
-	 * is only used for inlining. Otherwise the entity is regarded as a
-	 * declaration of an externally defined entity.
+	 * Do not generate code even if the entity has a graph or
+	 * initialization data attached.  The graph/data is only used for
+	 * inlining.  Otherwise the entity is regarded as a declaration of
+	 * an externally defined entity.
 	 * This linkage flag can be used to implement C99 "inline" or GNU89
 	 * "extern inline".
 	 */

ir/be/begnuas.c

@@ -1543,6 +1543,10 @@ static void be_gas_emit_globals(ir_type *const gt, be_main_env_t const *const ma
 {
 	for (size_t i = 0, n = get_compound_n_members(gt); i < n; i++) {
 		ir_entity *ent = get_compound_member(gt, i);
+
+		if (get_entity_linkage(ent) & IR_LINKAGE_NO_CODEGEN)
+			continue;
+
 		emit_global(main_env, ent);
 	}
 }