From 4f735ca1855bb66974f3b1c4ee493534d5037eda Mon Sep 17 00:00:00 2001
From: Anders Carlsson <andersca@mac.com>
Date: Sun, 20 Mar 2011 20:21:33 +0000
Subject: [PATCH] Don't try to eliminate invokes to __cxa_atexit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127976 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/IPO/GlobalOpt.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index 1a8b944363f..2b9b7f24302 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -2780,6 +2780,12 @@ bool GlobalOpt::OptimizeEmptyGlobalCXXDtors(Function *CXAAtExitFn) {
     if (!CS)
       continue;
 
+    // We're only interested in calls. Theoretically, we could handle invoke
+    // instructions as well, but neither llvm-gcc nor clang generate invokes
+    // to __cxa_atexit.
+    if (!CS.isCall())
+      continue;
+
     Function *DtorFn = 
       dyn_cast<Function>(CS.getArgument(0)->stripPointerCasts());
     if (!DtorFn)
-- 
2.34.1