From 76f07543d9e771493c88a5cf40e0e9e013ca2431 Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Thu, 16 Apr 2009 21:46:42 +0000
Subject: [PATCH] Add a comment to describe LLVMMatchType.

llvm-svn: 69313
---
 include/llvm/Intrinsics.td | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/llvm/Intrinsics.td b/include/llvm/Intrinsics.td
index 779b64a5008..6e4ce82c4c0 100644
--- a/include/llvm/Intrinsics.td
+++ b/include/llvm/Intrinsics.td
@@ -73,6 +73,12 @@ class LLVMAnyPointerType<LLVMType elty>
   LLVMType ElTy = elty;
 } 
 
+// Match the type of another intrinsic parameter.  Number is an index into the
+// list of overloaded types for the intrinsic, excluding all the fixed types.
+// The Number value must refer to a previously listed type.  For example:
+//   Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_anyfloat_ty, LLVMMatchType<0>]>
+// has two overloaded types, the 2nd and 3rd arguments.  LLVMMatchType<0>
+// refers to the first overloaded type, which is the 2nd argument.
 class LLVMMatchType<int num>
   : LLVMType<OtherVT>{
   int Number = num;