diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3b6f5c3f0ee..9e7b575b38a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-02-16  Martin Liska  <mliska@suse.cz>
+
+	PR sanitizer/84307
+	* internal-fn.def (ASAN_CHECK): Set proper flags.
+	(ASAN_MARK): Likewise.
+
 2018-02-16  Julia Koval  <julia.koval@intel.com>
 
 	* config/i386/i386.c (ix86_option_override_internal): Remove PTA_CLWB
diff --git a/gcc/internal-fn.def b/gcc/internal-fn.def
index 5970d0e472c..4080e1698ea 100644
--- a/gcc/internal-fn.def
+++ b/gcc/internal-fn.def
@@ -255,8 +255,8 @@ DEF_INTERNAL_FN (UBSAN_PTR, ECF_LEAF | ECF_NOTHROW, ".R.")
 DEF_INTERNAL_FN (UBSAN_OBJECT_SIZE, ECF_LEAF | ECF_NOTHROW, NULL)
 DEF_INTERNAL_FN (ABNORMAL_DISPATCHER, ECF_NORETURN, NULL)
 DEF_INTERNAL_FN (BUILTIN_EXPECT, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)
-DEF_INTERNAL_FN (ASAN_CHECK, ECF_TM_PURE | ECF_LEAF | ECF_NOTHROW, ".R...")
-DEF_INTERNAL_FN (ASAN_MARK, ECF_LEAF | ECF_NOTHROW, ".R..")
+DEF_INTERNAL_FN (ASAN_CHECK, ECF_TM_PURE | ECF_LEAF | ECF_NOTHROW, "..R..")
+DEF_INTERNAL_FN (ASAN_MARK, ECF_LEAF | ECF_NOTHROW, NULL)
 DEF_INTERNAL_FN (ASAN_POISON, ECF_LEAF | ECF_NOTHROW | ECF_NOVOPS, NULL)
 DEF_INTERNAL_FN (ASAN_POISON_USE, ECF_LEAF | ECF_NOTHROW | ECF_NOVOPS, NULL)
 DEF_INTERNAL_FN (ADD_OVERFLOW, ECF_CONST | ECF_LEAF | ECF_NOTHROW, NULL)