Fix PR8878.

llvm-svn: 122658
diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp
index c4e2e3f..757a56a 100644
--- a/llvm/lib/MC/ELFObjectWriter.cpp
+++ b/llvm/lib/MC/ELFObjectWriter.cpp
@@ -1610,6 +1610,7 @@
         assert(Modifier == MCSymbolRefExpr::VK_None);
         Type = ELF::R_X86_64_PC64;
         break;
+      case X86::reloc_signed_4byte:
       case X86::reloc_riprel_4byte_movq_load:
       case FK_Data_4: // FIXME?
       case X86::reloc_riprel_4byte: