commit 4adbcb275454d7cc179a541ff07f37474f31b522
author Zonr Chang <zonr.net@gmail.com> Tue Feb 07 11:19:21 2012 +0800
committer Zonr Chang <zonr.net@gmail.com> Fri Mar 02 17:17:06 2012 +0800
tree 91935fb21b7149cf26569453d934084e5562be77
parent e0918ac3cd6070c084b76d737af055e88a7679db

Add a non-null guard in ~SourceInfo().

Prevent dereference from null Module object.

lib/ExecutionEngine/SourceInfo.cpp

diff --git a/lib/ExecutionEngine/SourceInfo.cpp b/lib/ExecutionEngine/SourceInfo.cpp
index 9c49fcc..25c53e8 100644
--- a/lib/ExecutionEngine/SourceInfo.cpp
+++ b/lib/ExecutionEngine/SourceInfo.cpp
@@ -188,10 +188,12 @@
 }
 
 SourceInfo::~SourceInfo() {
-  llvm::LLVMContext *context = &module->getContext();
-  delete module;
-  if (!shared_context)
-    delete context;
+  if (module != NULL) {
+    llvm::LLVMContext *context = &module->getContext();
+    delete module;
+    if (!shared_context)
+      delete context;
+  }
 }
 
 #if USE_CACHE