From 55c15ad9ded2707d16cb88eea2dc2a62e4ec2359 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Wed, 24 May 2017 17:23:54 +0200
Subject: Cycles: Use falltrhough attribute to help catching missing break
 statements

---
 intern/cycles/util/util_types.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'intern/cycles/util')

diff --git a/intern/cycles/util/util_types.h b/intern/cycles/util/util_types.h
index 0039c59ec48..a5d1d7152d5 100644
--- a/intern/cycles/util/util_types.h
+++ b/intern/cycles/util/util_types.h
@@ -68,6 +68,13 @@
 #    define ccl_never_inline __attribute__((noinline))
 #    define ccl_maybe_unused __attribute__((used))
 #  endif  /* _WIN32 && !FREE_WINDOWS */
+
+/* Use to suppress '-Wimplicit-fallthrough' (in place of 'break'). */
+#  if defined(__GNUC__) && (__GNUC__ >= 7)  /* gcc7.0+ only */
+#    define ATTR_FALLTHROUGH __attribute__((fallthrough))
+#  else
+#    define ATTR_FALLTHROUGH ((void)0)
+#  endif
 #endif  /* __KERNEL_GPU__ */
 
 /* Standard Integer Types */
-- 
cgit v1.2.3