plug more leaks

ir/be/belistsched.c

@@ -265,6 +265,8 @@ static void list_sched_block(ir_node *block, void *env_ptr)
 		add_to_sched(&be, irn);
 	}
 
+	ir_nodeset_destroy(cands);
+
 	if (selector->finish_block)
 		selector->finish_block(be.selector_block_env);
 }

ir/common/firm.c

@@ -121,11 +121,15 @@ void ir_init(void)
 
 void ir_finish(void)
 {
+#ifdef DEBUG_libfirm
+	firm_finish_debugger();
+#endif
 	free_ir_prog();
 
 	finish_tarval();
 	finish_mode();
 	finish_tpop();
+	firm_finish_mangle();
 	finish_ident();
 
 	firm_be_finish();

ir/debug/debugger.c

@@ -1280,6 +1280,12 @@ void firm_init_debugger(void)
 		firm_debug_break();
 }
 
+void firm_finish_debugger(void)
+{
+	del_set(bp_numbers);
+	del_set(bp_idents);
+}
+
 /**
  * A gdb helper function to print firm objects.
  */

ir/debug/debugger.h

@@ -43,6 +43,8 @@ void firm_break(const char *cmd);
 /** Creates the debugger tables. */
 void firm_init_debugger(void);
 
+void firm_finish_debugger(void);
+
 /**
  * @defgroup external_debug    helper functions for debuggers
  *

ir/ident/ident_t.h

@@ -40,4 +40,6 @@ void finish_ident(void);
 /** initializes the name mangling code */
 void firm_init_mangle(void);
 
+void firm_finish_mangle(void);
+
 #endif

ir/ident/mangle.c

@@ -156,3 +156,8 @@ void firm_init_mangle(void)
 {
 	obstack_init(&mangle_obst);
 }
+
+void firm_finish_mangle(void)
+{
+	obstack_free(&mangle_obst, NULL);
+}

ir/lower/lower_switch.c

@@ -165,6 +165,7 @@ static void analyse_switch1(switch_info_t *info)
 
 	info->default_block = targets[pn_Switch_default];
 	info->cases         = cases;
+	free(targets);
 }
 
 static void normalize_table(ir_node *switchn, ir_mode *new_mode,