- renamed access offset functions

[libfirm] / ir / be / beilpsched.h

diff --git a/ir/be/beilpsched.h b/ir/be/beilpsched.h
index 277e337..b381d68 100644 (file)
--- a/ir/be/beilpsched.h
+++ b/ir/be/beilpsched.h
@@ -68,21 +68,21 @@ struct _ilp_sched_selector_t {
 
 #define BE_ILP_SCHED_CALL(func, self, obj, env) \
        do {                                        \
-               if ((self)->func)                       \
+               if ((self) && (self)->func)             \
                        (self)->func((self), (obj), (env)); \
        } while (0)
 
 #define BE_ILP_SCHED_CALL2(func, self, obj, obj2, env)  \
        do {                                                \
-               if ((self)->func)                               \
+               if ((self) && (self)->func)                     \
                        (self)->func((self), (obj), (obj2), (env)); \
        } while (0)
 
 #define BE_ILP_SCHED_CALL_ENVRET(func, self, obj, defret) \
-       ((self)->func ? (self)->func((self), (obj)) : (defret))
+       ((self) && (self)->func ? (self)->func((self), (obj)) : (defret))
 
 #define BE_ILP_SCHED_CALL_RET(func, self, obj, env, defret) \
-       ((self)->func ? (self)->func((self), (obj), (env)) : (defret))
+       ((self) && (self)->func ? (self)->func((self), (obj), (env)) : (defret))
 
 /**
  * Convenience macros for all functions.