Add a chain to FORMAL_ARGUMENTS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28319 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 7f317c5e98eef6ab44de8a024029450d71dd3640..da630db30e0acadffdd337b461ccbce5cd80852c 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -115,12 +115,13 @@ namespace ISD {
     // UNDEF - An undefined node
     UNDEF,
     
-    /// FORMAL_ARGUMENTS(CC#, ISVARARG) - This node represents the formal
+    /// FORMAL_ARGUMENTS(CHAIN, CC#, ISVARARG) - This node represents the formal
     /// arguments for a function.  CC# is a Constant value indicating the
     /// calling convention of the function, and ISVARARG is a flag that
     /// indicates whether the function is varargs or not.  This node has one
-    /// result value for each incoming argument, and is typically custom
-    /// legalized.
+    /// result value for each incoming argument, plus one for the output chain.
+    /// It must be custom legalized.
+    /// 
     FORMAL_ARGUMENTS,
 
     // EXTRACT_ELEMENT - This is used to get the first or second (determined by