Index: ELF/Driver.cpp
===================================================================
--- ELF/Driver.cpp
+++ ELF/Driver.cpp
@@ -849,7 +849,7 @@
     }
   }
 
-  if (Files.empty() && ErrorCount == 0)
+  if ((!Config->Relocatable && Files.empty()) && ErrorCount == 0)
     error("no input files");
 }
 
Index: test/ELF/Inputs/relocatable-empty-archive.s
===================================================================
--- test/ELF/Inputs/relocatable-empty-archive.s
+++ test/ELF/Inputs/relocatable-empty-archive.s
@@ -0,0 +1 @@
+!<arch>
Index: test/ELF/relocatable-empty-archive.s
===================================================================
--- test/ELF/relocatable-empty-archive.s
+++ test/ELF/relocatable-empty-archive.s
@@ -0,0 +1 @@
+# RUN: ld.lld -m elf_x86_64 %S/Inputs/relocatable-empty-archive.s -o %t -r