From d3a9dd70429239093b136e178147ec0425dab269 Mon Sep 17 00:00:00 2001
From: Ahmed Bougacha <ahmed.bougacha@gmail.com>
Date: Wed, 6 May 2015 01:28:58 +0000
Subject: [PATCH] [WinEH] Reset WinEHPrepare::SEHExceptionCodeSlot when we're
 done.

This caused a use-after-free on test/CodeGen/X86/win32-eh.ll
No functional change intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236561 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/WinEHPrepare.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/CodeGen/WinEHPrepare.cpp b/lib/CodeGen/WinEHPrepare.cpp
index db91c02ee46..2c72a556f75 100644
--- a/lib/CodeGen/WinEHPrepare.cpp
+++ b/lib/CodeGen/WinEHPrepare.cpp
@@ -934,6 +934,7 @@ bool WinEHPrepare::prepareExceptionHandlers(
   CleanupHandlerMap.clear();
   HandlerToParentFP.clear();
   DT = nullptr;
+  SEHExceptionCodeSlot = nullptr;
 
   return HandlersOutlined;
 }
-- 
2.34.1