Index: lib/MC/MCParser/ELFAsmParser.cpp
===================================================================
--- lib/MC/MCParser/ELFAsmParser.cpp
+++ lib/MC/MCParser/ELFAsmParser.cpp
@@ -743,6 +743,9 @@
   const MCExpr *Value = MCSymbolRefExpr::create(Sym, getContext());
 
   getStreamer().EmitAssignment(Alias, Value);
+  // The alias name is global since it needs to be externally available
+  // for the linker.
+  getStreamer().EmitSymbolAttribute(Alias, MCSA_Global);
   return false;
 }
 
Index: test/LTO/X86/symver-asm.ll
===================================================================
--- test/LTO/X86/symver-asm.ll
+++ test/LTO/X86/symver-asm.ll
@@ -1,7 +1,10 @@
 ; RUN: llvm-as < %s >%t1
 ; RUN: llvm-lto -o %t2 %t1
 ; RUN: llvm-nm %t2 | FileCheck %s
+; RUN: llvm-lto2 -r %t1,io_cancel_0_4,plx -r %t1,io_cancel_0_4,plx -r %t1,io_cancel@@LIBAIO_0.4,plx -o %t3 %t1
+; RUN: llvm-nm %t3.0 | FileCheck %s
 
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 
 module asm ".symver io_cancel_0_4,io_cancel@@LIBAIO_0.4"