xfail dxc-vulkan and link bug

Author: kmpeng

test/Feature/HLSLLib/min.int16.test

@@ -117,6 +117,9 @@ DescriptorSets:
         Binding: 5
 #--- end
 
+# https://github.com/microsoft/DirectXShaderCompiler/issues/7691
+# XFAIL: DXC-Vulkan
+
 # REQUIRES: Int16
 # RUN: split-file %s %t
 # RUN: %dxc_target -enable-16bit-types -T cs_6_5 -Fo %t.o %t/source.hlsl