Index: lib/LTO/LTO.cpp
===================================================================
--- lib/LTO/LTO.cpp
+++ lib/LTO/LTO.cpp
@@ -428,7 +428,10 @@
     assert(ResI != ResE);
     SymbolResolution Res = *ResI++;
 
-    auto &GlobalRes = GlobalResolutions[Sym.getName()];
+    StringRef Name = Sym.getName();
+    if (Name.startswith("__imp_"))
+      Name = Name.substr(strlen("__imp_"));
+    auto &GlobalRes = GlobalResolutions[Name];
     GlobalRes.UnnamedAddr &= Sym.isUnnamedAddr();
     if (Res.Prevailing) {
       assert(!GlobalRes.Prevailing &&