LibDriver: Silently do nothing when provided no inputs.

This behavior is strange, but it matches lib.exe. Based on a patch by
Nico Weber.

Fixes PR27335.

llvm-svn: 266236

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/LibDriver/LibDriver.cpp b/llvm/lib/LibDriver/LibDriver.cpp
index 3ae54346074..671cc73c576 100644
--- a/llvm/lib/LibDriver/LibDriver.cpp
+++ b/llvm/lib/LibDriver/LibDriver.cpp
@@ -122,8 +122,8 @@ int llvm::libDriverMain(llvm::ArrayRef<const char*> ArgsArr) {
     llvm::errs() << "ignoring unknown argument: " << Arg->getSpelling() << "\n";
 
   if (Args.filtered_begin(OPT_INPUT) == Args.filtered_end()) {
-    llvm::errs() << "no input files.\n";
-    return 1;
+    // No input files.  To match lib.exe, silently do nothing.
+    return 0;
   }
 
   std::vector<StringRef> SearchPaths = getSearchPaths(&Args, Saver);