Index: lld/COFF/Config.h
===================================================================
--- lld/COFF/Config.h
+++ lld/COFF/Config.h
@@ -10,6 +10,7 @@
 #ifndef LLD_COFF_CONFIG_H
 #define LLD_COFF_CONFIG_H
 
+#include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Object/COFF.h"
 #include "llvm/Support/CachePruning.h"
@@ -103,6 +104,10 @@
   // True if we are creating a DLL.
   bool DLL = false;
   StringRef Implib;
+
+  // Export in directive sections, parsed later.
+  llvm::SetVector<StringRef> DirectiveExports;
+
   std::vector<Export> Exports;
   std::set<std::string> DelayLoads;
   std::map<std::string, int> DLLOrder;
Index: lld/COFF/Driver.cpp
===================================================================
--- lld/COFF/Driver.cpp
+++ lld/COFF/Driver.cpp
@@ -245,15 +245,7 @@
       Config->Entry = addUndefined(mangle(Arg->getValue()));
       break;
     case OPT_export: {
-      Export E = parseExport(Arg->getValue());
-      if (Config->Machine == I386 && Config->MinGW) {
-        if (!isDecorated(E.Name))
-          E.Name = Saver.save("_" + E.Name);
-        if (!E.ExtName.empty() && !isDecorated(E.ExtName))
-          E.ExtName = Saver.save("_" + E.ExtName);
-      }
-      E.Directives = true;
-      Config->Exports.push_back(E);
+      Config->DirectiveExports.insert(Arg->getValue());
       break;
     }
     case OPT_failifmismatch:
@@ -1054,6 +1046,19 @@
   // Read all input files given via the command line.
   run();
 
+  // Parse deduplicated Exports in directive section.
+  for (const StringRef & RawE : Config->DirectiveExports) {
+      Export E = parseExport(RawE);
+      if (Config->Machine == I386 && Config->MinGW) {
+        if (!isDecorated(E.Name))
+          E.Name = Saver.save("_" + E.Name);
+        if (!E.ExtName.empty() && !isDecorated(E.ExtName))
+          E.ExtName = Saver.save("_" + E.ExtName);
+      }
+      E.Directives = true;
+      Config->Exports.push_back(E);
+  }
+
   // We should have inferred a machine type by now from the input files, but if
   // not we assume x64.
   if (Config->Machine == IMAGE_FILE_MACHINE_UNKNOWN) {