commit ed363c5dcb3838ee1078cc74605710322a78514c
author Ahmed Bougacha <ahmed.bougacha@gmail.com> Wed May 06 01:28:58 2015 +0000
committer Ahmed Bougacha <ahmed.bougacha@gmail.com> Wed May 06 01:28:58 2015 +0000
tree 097c3be9a0ed0353d27501c3e73fb479def631c9
parent f9c4c424aca0d87f6b87054a1bd374ff189e5ab4

[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.

llvm-svn: 236561

llvm/lib/CodeGen/WinEHPrepare.cpp

diff --git a/llvm/lib/CodeGen/WinEHPrepare.cpp b/llvm/lib/CodeGen/WinEHPrepare.cpp
index db91c02..2c72a55 100644
--- a/llvm/lib/CodeGen/WinEHPrepare.cpp
+++ b/llvm/lib/CodeGen/WinEHPrepare.cpp
@@ -934,6 +934,7 @@
   CleanupHandlerMap.clear();
   HandlerToParentFP.clear();
   DT = nullptr;
+  SEHExceptionCodeSlot = nullptr;
 
   return HandlersOutlined;
 }