Make llvmc return 1 when the compilation fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50735 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvmc2/llvmc.cpp b/tools/llvmc2/llvmc.cpp
index 65f5e11..bb818c3 100644
--- a/tools/llvmc2/llvmc.cpp
+++ b/tools/llvmc2/llvmc.cpp
@@ -83,4 +83,5 @@
   catch(...) {
     std::cerr << "Unknown error!\n";
   }
+  return 1;
 }