[llvm-commits] [llvm] r109500 - /llvm/trunk/lib/CompilerDriver/CompilationGraph.cpp

[Mikhail Glushenkov]

Author: foldr
Date: Tue Jul 27 06:19:40 2010
New Revision: 109500

URL: http://llvm.org/viewvc/llvm-project?rev=109500&view=rev
Log:
Fix silent failure with no input files.

Modified:
    llvm/trunk/lib/CompilerDriver/CompilationGraph.cpp

Modified: llvm/trunk/lib/CompilerDriver/CompilationGraph.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CompilerDriver/CompilationGraph.cpp?rev=109500&r1=109499&r2=109500&view=diff
==============================================================================
--- llvm/trunk/lib/CompilerDriver/CompilationGraph.cpp (original)
+++ llvm/trunk/lib/CompilerDriver/CompilationGraph.cpp Tue Jul 27 06:19:40 2010
@@ -355,6 +355,7 @@
 int CompilationGraph::Build (const sys::Path& TempDir,
                              const LanguageMap& LangMap) {
   InputLanguagesSet InLangs;
+  bool WasSomeActionGenerated = !InputFilenames.empty();
 
   // Traverse initial parts of the toolchains and fill in InLangs.
   if (int ret = BuildInitial(InLangs, TempDir, LangMap))
@@ -375,6 +376,7 @@
     if (JT->JoinListEmpty() && !(JT->WorksOnEmpty() && InputFilenames.empty()))
       continue;
 
+    WasSomeActionGenerated = true;
     Action CurAction;
     if (int ret = JT->GenerateAction(CurAction, CurNode->HasChildren(),
                                      TempDir, InLangs, LangMap)) {
@@ -401,6 +403,11 @@
     }
   }
 
+  if (!WasSomeActionGenerated) {
+    PrintError("no input files");
+    return 1;
+  }
+
   return 0;
 }