1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/asan.h b/gcc/asan.h
index 86b295583cb..efc517e0556 100644
--- a/gcc/asan.h
+++ b/gcc/asan.h
@@ -157,4 +157,24 @@ asan_protect_stack_decl (tree decl)
 	|| (asan_sanitize_use_after_scope () && TREE_ADDRESSABLE (decl)));
 }
 
+/* Return true when flag_sanitize & FLAG is non-zero.  If FN is non-null,
+   remove all flags mentioned in "no_sanitize" of DECL_ATTRIBUTES.  */
+
+static inline bool
+sanitize_flags_p (unsigned int flag, const_tree fn = current_function_decl)
+{
+  unsigned int result_flags = flag_sanitize & flag;
+  if (result_flags == 0)
+    return false;
+
+  if (fn != NULL_TREE)
+    {
+      tree value = lookup_attribute ("no_sanitize", DECL_ATTRIBUTES (fn));
+      if (value)
+	result_flags &= ~tree_to_uhwi (TREE_VALUE (value));
+    }
+
+  return result_flags;
+}
+
 #endif /* TREE_ASAN */