From: Andrew Kaylor <andrew.kaylor@intel.com>
Date: Mon, 20 Apr 2015 22:53:42 +0000 (+0000)
Subject: [WinEH] Fix problem with landing pad return values used in PHI nodes during outlining.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e0b5195703ddf15d79db903f1150ca52d5ee8efc;p=llvm

[WinEH] Fix problem with landing pad return values used in PHI nodes during outlining.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235358 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/WinEHPrepare.cpp b/lib/CodeGen/WinEHPrepare.cpp
index cba9ea530ba..f4e810d8173 100644
--- a/lib/CodeGen/WinEHPrepare.cpp
+++ b/lib/CodeGen/WinEHPrepare.cpp
@@ -904,6 +904,10 @@ bool WinEHPrepare::outlineHandler(ActionHandler *Action, Function *SrcFn,
     ++II;
   }
 
+  // The landing pad value may be used by PHI nodes.  It will ultimately be
+  // eliminated, but we need it in the map for intermediate handling.
+  VMap[LPad] = UndefValue::get(LPad->getType());
+
   // Skip over PHIs and, if applicable, landingpad instructions.
   II = StartBB->getFirstInsertionPt();