[llvm-exegesis] Fix use after free.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D45625

llvm-svn: 330026
diff --git a/llvm/tools/llvm-exegesis/lib/InMemoryAssembler.cpp b/llvm/tools/llvm-exegesis/lib/InMemoryAssembler.cpp
index 7e1e58f..00b7ee7 100644
--- a/llvm/tools/llvm-exegesis/lib/InMemoryAssembler.cpp
+++ b/llvm/tools/llvm-exegesis/lib/InMemoryAssembler.cpp
@@ -215,7 +215,7 @@
   // Adding the generated object file containing the assembled function.
   // The ExecutionEngine makes sure the object file is copied into an
   // executable page.
-  ExecEngine->addObjectFile(ObjHolder.takeBinary().first);
+  ExecEngine->addObjectFile(std::move(ObjHolder));
   // Setting function
   FunctionBytes =
       llvm::StringRef(reinterpret_cast<const char *>(