From f94bc547575236d06a45bc17c576f3e19e463803 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 1 Mar 2010 22:04:33 +0000
Subject: tolerate factoring the *last* node for CellSPU.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97508 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/DAGISelMatcherOpt.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'utils/TableGen/DAGISelMatcherOpt.cpp')

diff --git a/utils/TableGen/DAGISelMatcherOpt.cpp b/utils/TableGen/DAGISelMatcherOpt.cpp
index 0e89fa0..97ddf67 100644
--- a/utils/TableGen/DAGISelMatcherOpt.cpp
+++ b/utils/TableGen/DAGISelMatcherOpt.cpp
@@ -351,6 +351,11 @@ static void FactorNodes(OwningPtr<Matcher> &MatcherPtr) {
     return;
   }
   
+  if (NewOptionsToMatch.empty()) {
+    MatcherPtr.reset(0);
+    return;
+  }
+  
   // If our factoring failed (didn't achieve anything) see if we can simplify in
   // other ways.
   
-- 
cgit v1.1