When the compiler crashes, the compiler driver now produces diagnostic information

including the fully preprocessed source file(s) and command line arguments.  The 
developer is asked to attach this diagnostic information to a bug report.

llvm-svn: 135614

1 files changed, 8 insertions, 2 deletions

diff --git a/clang/tools/driver/driver.cpp b/clang/tools/driver/driver.cpp
index ca8982619e9..b2f65c92884 100644
--- a/clang/tools/driver/driver.cpp
+++ b/clang/tools/driver/driver.cpp
@@ -458,9 +458,15 @@ int main(int argc_, const char **argv_) {
 
   llvm::OwningPtr<Compilation> C(TheDriver.BuildCompilation(argv));
   int Res = 0;
+  const Command *FailingCommand = 0;
   if (C.get())
-    Res = TheDriver.ExecuteCompilation(*C);
-  
+    Res = TheDriver.ExecuteCompilation(*C, FailingCommand);
+
+  // If result status is < 0, then the driver command signalled an error.
+  // In this case, generate additional diagnostic information if possible.
+  if (Res < 0)
+    TheDriver.generateCompilationDiagnostics(*C, FailingCommand);
+
   // If any timers were active but haven't been destroyed yet, print their
   // results now.  This happens in -disable-free mode.
   llvm::TimerGroup::printAll(llvm::errs());