From b0658549c5b92249ce844e8fd8c7c2cf2fce24a3 Mon Sep 17 00:00:00 2001
From: Matt Pharr <matt.pharr@intel.com>
Date: Mon, 4 Jul 2011 12:52:03 +0100
Subject: [PATCH] Fix crash when no input filename was provided.

---
 module.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module.cpp b/module.cpp
index 1c66cb52..b5927ab8 100644
--- a/module.cpp
+++ b/module.cpp
@@ -154,7 +154,7 @@ Module::CompileFile() {
     if (runPreprocessor) {
         std::string buffer;
         llvm::raw_string_ostream os(buffer);
-        execPreprocessor(filename, &os);
+        execPreprocessor((filename != NULL) ? filename : "-", &os);
         YY_BUFFER_STATE strbuf = yy_scan_string(os.str().c_str());
         yyparse();
         yy_delete_buffer(strbuf);