[IR] Limit bits used for CallingConv::ID, update tests

[oota-llvm.git] / include / llvm / IR / CallingConv.h

diff --git a/include/llvm/IR/CallingConv.h b/include/llvm/IR/CallingConv.h
index 5c82de62dfd1a320351e8f856923b64c8e0a8f4f..ac7cc9b74ab95f1764bf91bebc9165dc6827c62f 100644 (file)
--- a/include/llvm/IR/CallingConv.h
+++ b/include/llvm/IR/CallingConv.h
@@ -156,7 +156,10 @@ namespace CallingConv {
     HHVM = 81,
 
     /// \brief HHVM calling convention for invoking C/C++ helpers.
-    HHVM_C = 82
+    HHVM_C = 82,
+
+    /// The highest possible calling convention ID. Must be some 2^k - 1.
+    MaxID = 1023
   };
 } // End CallingConv namespace