Index: lld/trunk/MinGW/Driver.cpp
===================================================================
--- lld/trunk/MinGW/Driver.cpp
+++ lld/trunk/MinGW/Driver.cpp
@@ -154,6 +154,8 @@
     Add("-export-all-symbols");
   if (!Args.hasArg(OPT_strip_all))
     Add("-debug:dwarf");
+  if (Args.hasArg(OPT_large_address_aware))
+    Add("-largeaddressaware");
 
   if (auto *A = Args.getLastArg(OPT_m)) {
     StringRef S = A->getValue();
Index: lld/trunk/MinGW/Options.td
===================================================================
--- lld/trunk/MinGW/Options.td
+++ lld/trunk/MinGW/Options.td
@@ -15,6 +15,8 @@
 def m: JoinedOrSeparate<["-"], "m">, HelpText<"Set target emulation">;
 def no_whole_archive: F<"no-whole-archive">,
     HelpText<"No longer include all object files for following archives">;
+def large_address_aware: Flag<["--"], "large-address-aware">,
+    HelpText<"Enable large addresses">;
 def o: JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
   HelpText<"Path to file to write output">;
 def out_implib: Separate<["--"], "out-implib">, HelpText<"Import library name">;
Index: lld/trunk/test/MinGW/driver.test
===================================================================
--- lld/trunk/test/MinGW/driver.test
+++ lld/trunk/test/MinGW/driver.test
@@ -89,3 +89,6 @@
 RUN: ld.lld -### -m i386pep foo.o -s | FileCheck -check-prefix STRIP %s
 RUN: ld.lld -### -m i386pep foo.o --strip-all | FileCheck -check-prefix STRIP %s
 STRIP-NOT: -debug:dwarf
+
+RUN: ld.lld -### -m i386pep foo.o --large-address-aware | FileCheck -check-prefix LARGE-ADDRESS-AWARE %s
+LARGE-ADDRESS-AWARE: -largeaddressaware