Don't emit a null terminator, nor anything after it, to the ctor/dtor list

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24887 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp
index 0539d46325..26a3d39db5 100644
--- a/lib/CodeGen/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter.cpp
@@ -146,7 +146,10 @@ void AsmPrinter::EmitXXStructorList(Constant *List) {
   for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
     if (ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i))){
       if (CS->getNumOperands() != 2) return;  // Not array of 2-element structs.
-                                              // Emit the function pointer.
+
+      if (CS->getOperand(1)->isNullValue())
+        return;  // Found a null terminator, exit printing.
+      // Emit the function pointer.
       EmitGlobalConstant(CS->getOperand(1));
     }
 }