BitcodeReader.cpp.patch

--- ../../../lib/Bitcode/Reader/BitcodeReader.cpp	2019-12-29 18:23:35.483920360 -0600
+++ lib/Bitcode/Reader/BitcodeReader.cpp	2019-12-29 18:46:57.005656131 -0600
@@ -1066,6 +1066,12 @@
   case Attribute::SwiftSelf:       return 1ULL << 51;
   case Attribute::SwiftError:      return 1ULL << 52;
   case Attribute::WriteOnly:       return 1ULL << 53;
+
+  // VISC Attributes
+  case Attribute::In:                return 1ULL << 54;
+  case Attribute::Out:               return 1ULL << 55;
+  case Attribute::InOut:             return 1ULL << 56;
+
   case Attribute::Dereferenceable:
     llvm_unreachable("dereferenceable attribute not supported in raw format");
     break;