From 9fd6eebf92fc7fb5887a8f822f765e2e2d7d268f Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Fri, 28 Nov 2014 05:01:21 +0000
Subject: [PATCH] Fix another memory leak in TableGen AsmMatcher by deleting
 CodeGenInstAliases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222912 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/AsmMatcherEmitter.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 45fc26801d3..366fbc3744b 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -442,6 +442,11 @@ struct MatchableInfo {
       AsmString(Alias->AsmString) {
   }
 
+  ~MatchableInfo() {
+    if (DefRec.is<const CodeGenInstAlias*>())
+      delete DefRec.get<const CodeGenInstAlias*>();
+  }
+
   // Two-operand aliases clone from the main matchable, but mark the second
   // operand as a tied operand of the first for purposes of the assembler.
   void formTwoOperandAlias(StringRef Constraint);