+ X86_64_Win64 = 79,
+
+ /// \brief MSVC calling convention that passes vectors and vector aggregates
+ /// in SSE registers.
+ X86_VectorCall = 80,
+
+ /// \brief Calling convention used by HipHop Virtual Machine (HHVM) to
+ /// perform calls to and from translation cache, and for calling PHP
+ /// functions.
+ /// HHVM calling convention supports tail/sibling call elimination.
+ HHVM = 81,
+
+ /// \brief HHVM calling convention for invoking C/C++ helpers.
+ HHVM_C = 82,
+
+ /// The highest possible calling convention ID. Must be some 2^k - 1.
+ MaxID = 1023