Index: include/llvm/LTO/LTO.h
===================================================================
--- include/llvm/LTO/LTO.h
+++ include/llvm/LTO/LTO.h
@@ -25,6 +25,7 @@
 #include "llvm/LTO/Config.h"
 #include "llvm/Linker/IRMover.h"
 #include "llvm/Object/IRObjectFile.h"
+#include "llvm/Support/Error.h"
 #include "llvm/Support/thread.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Transforms/IPO/FunctionImport.h"
@@ -220,6 +221,9 @@
         symbol_iterator(SymTab.symbols().end(), SymTab, this));
   }
 
+  /// Returns linker options specified in the input file.
+  Expected<std::string> getLinkerOpts();
+
   /// Returns the path to the InputFile.
   StringRef getName() const;
 
Index: lib/LTO/LTO.cpp
===================================================================
--- lib/LTO/LTO.cpp
+++ lib/LTO/LTO.cpp
@@ -20,9 +20,11 @@
 #include "llvm/IR/AutoUpgrade.h"
 #include "llvm/IR/DiagnosticPrinter.h"
 #include "llvm/IR/LegacyPassManager.h"
+#include "llvm/IR/Metadata.h"
 #include "llvm/LTO/LTOBackend.h"
 #include "llvm/Linker/IRMover.h"
 #include "llvm/Object/ModuleSummaryIndexObjectFile.h"
+#include "llvm/Support/Error.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
@@ -288,6 +290,27 @@
   return -1;
 }
 
+Expected<std::string> InputFile::getLinkerOpts() {
+  std::string LinkerOpts;
+  raw_string_ostream LOS(LinkerOpts);
+  // Extract linker options.
+  for (InputModule &Mod : Mods) {
+    std::unique_ptr<Module> &M = Mod.Mod;
+    if (auto E = M->materializeMetadata())
+      return std::move(E);
+    if (Metadata *Val = M->getModuleFlag("Linker Options")) {
+      MDNode *LinkerOptions = cast<MDNode>(Val);
+      for (const MDOperand &MDOptions : LinkerOptions->operands()) {
+	for (const MDOperand &MDOption : cast<MDNode>(MDOptions)->operands()) {
+	  LOS << " " << cast<MDString>(MDOption)->getString();
+	}
+      }
+    }
+  }
+  LOS.flush();
+  return LinkerOpts;
+}
+
 StringRef InputFile::getName() const {
   return Mods[0].BM.getModuleIdentifier();
 }