1 files changed, 7 insertions, 1 deletions
diff --git a/lib/IR/DataLayout.cpp b/lib/IR/DataLayout.cpp
index 44410ceb68..d60c79f52e 100644
--- a/lib/IR/DataLayout.cpp
+++ b/lib/IR/DataLayout.cpp
@@ -344,7 +344,13 @@ void DataLayout::parseSpecifier(StringRef Desc) {
   }
 }
 
-DataLayout::DataLayout(const Module *M) { init(M->getDataLayout()); }
+DataLayout::DataLayout(const Module *M) {
+  const DataLayout *Other = M->getDataLayout();
+  if (Other)
+    *this = *Other;
+  else
+    init("");
+}
 
 void
 DataLayout::setAlignment(AlignTypeEnum align_type, unsigned abi_align,