From 408b811d1ee422aa06beab5b9c488a43dc74ce75 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Thu, 5 May 2016 06:19:27 +0000
Subject: [PATCH] [TableGen] Make sure to recursively factor any ScopeMatchers
 created while forming a SwitchType node. Remove a couple hundred bytes from
 the X86 matcher table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268611 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/DAGISelMatcherOpt.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/utils/TableGen/DAGISelMatcherOpt.cpp b/utils/TableGen/DAGISelMatcherOpt.cpp
index 5c5774066b8..a0211edce09 100644
--- a/utils/TableGen/DAGISelMatcherOpt.cpp
+++ b/utils/TableGen/DAGISelMatcherOpt.cpp
@@ -484,7 +484,9 @@ static void FactorNodes(std::unique_ptr<Matcher> &MatcherPtr) {
         }
         
         Matcher *Entries[2] = { PrevMatcher, MatcherWithoutCTM };
-        Cases[Entry-1].second = new ScopeMatcher(Entries);
+        std::unique_ptr<Matcher> Case(new ScopeMatcher(Entries));
+        FactorNodes(Case);
+        Cases[Entry-1].second = Case.release();
         continue;
       }
       
-- 
2.50.1