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

diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index 1a8b944363f70848df0119f7064d3ee96efa19e1..2b9b7f2430278684d1a1bad7f85e65403990b81e 100644 (file)
--- 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)