From 42a0bc6d96ea2d2861178ebec98123a94008b94e Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sat, 16 Sep 2023 19:45:30 +0200
Subject: [PATCH] tests: Add ATTRIBUTE_NO_SANITIZE_INTEGER macro

---
 doc/apibuild.py | 1 +
 libxml.h        | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/doc/apibuild.py b/doc/apibuild.py
index 43ffcc0c..f7e66df0 100755
--- a/doc/apibuild.py
+++ b/doc/apibuild.py
@@ -63,6 +63,7 @@ ignored_words = {
   "LIBXML_ATTR_FORMAT": (5, "macro for gcc printf args checking extension"),
   "LIBXML_ATTR_ALLOC_SIZE": (3, "macro for gcc checking extension"),
   "ATTRIBUTE_NO_SANITIZE": (3, "macro keyword"),
+  "ATTRIBUTE_NO_SANITIZE_INTEGER": (0, "macro keyword"),
   "XML_DEPRECATED": (0, "macro keyword"),
   "XML_GLOBALS_ALLOC": (0, "macro keyword"),
   "XML_GLOBALS_ERROR": (0, "macro keyword"),
diff --git a/libxml.h b/libxml.h
index c3d04bc5..2f72e0ac 100644
--- a/libxml.h
+++ b/libxml.h
@@ -59,4 +59,12 @@
   #define ATTRIBUTE_NO_SANITIZE(arg)
 #endif
 
+#ifdef __clang__
+  #define ATTRIBUTE_NO_SANITIZE_INTEGER \
+    ATTRIBUTE_NO_SANITIZE("unsigned-integer-overflow") \
+    ATTRIBUTE_NO_SANITIZE("unsigned-shift-base")
+#else
+  #define ATTRIBUTE_NO_SANITIZE_INTEGER
+#endif
+
 #endif /* ! __XML_LIBXML_H__ */