From d272fee39888253591586c56a3e2728067475e3f Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 2 Mar 2010 18:15:02 +0000
Subject: [PATCH] the sorting predicate should work for comparing an element to
 itself, even though this isn't wildly useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97574 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/DAGISelEmitter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index 46e4b09507d..e0fa7c82f8c 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -180,7 +180,7 @@ struct PatternSortingPredicate {
     if (LHSPatSize > RHSPatSize) return false;
     
     // Sort based on the UID of the pattern, giving us a deterministic ordering.
-    assert(LHS->ID != RHS->ID);
+    assert(LHS == RHS || LHS->ID != RHS->ID);
     return LHS->ID < RHS->ID;
   }
 };