Index: lld/trunk/ELF/InputFiles.cpp
===================================================================
--- lld/trunk/ELF/InputFiles.cpp
+++ lld/trunk/ELF/InputFiles.cpp
@@ -446,6 +446,8 @@
         continue;
     if (!(Flags & BasicSymbolRef::SF_Global))
         continue;
+    if (Flags & BasicSymbolRef::SF_FormatSpecific)
+      continue;
     uint8_t Visibility = getGvVisibility(GV);
 
     SmallString<64> Name;
Index: lld/trunk/test/ELF/lto/linkage.ll
===================================================================
--- lld/trunk/test/ELF/lto/linkage.ll
+++ lld/trunk/test/ELF/lto/linkage.ll
@@ -7,3 +7,9 @@
 
 ; Should not encounter a duplicate symbol error for @.str
 @.str = private unnamed_addr constant [4 x i8] c"Hey\00", align 1
+
+; Should not encounter a duplicate symbol error for @llvm.global_ctors
+@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @ctor, i8* null }]
+define internal void @ctor() {
+  ret void
+}