Added code to run pointer validation checks in

expressions.  If an expression dereferences an
invalid pointer, there will still be a crash -
just now the crash will be in the function
___clang_valid_pointer_check().

llvm-svn: 112785

1 files changed, 20 insertions, 0 deletions

diff --git a/lldb/include/lldb/Expression/IRDynamicChecks.h b/lldb/include/lldb/Expression/IRDynamicChecks.h
index bb875ae8f5a..e0f8b0a1517 100644
--- a/lldb/include/lldb/Expression/IRDynamicChecks.h
+++ b/lldb/include/lldb/Expression/IRDynamicChecks.h
@@ -132,6 +132,26 @@ public:
     //------------------------------------------------------------------
     llvm::PassManagerType getPotentialPassManagerType() const;
 private:
+    //------------------------------------------------------------------
+    /// A basic block-level pass to find all pointer dereferences and
+    /// validate them before use.
+    //------------------------------------------------------------------
+    
+    //------------------------------------------------------------------
+    /// The top-level pass implementation
+    ///
+    /// @param[in] M
+    ///     The module currently being processed.
+    ///
+    /// @param[in] BB
+    ///     The basic block currently being processed.
+    ///
+    /// @return
+    ///     True on success; false otherwise
+    //------------------------------------------------------------------
+    bool FindDataLoads(llvm::Module &M, 
+                       llvm::BasicBlock &BB);
+    
     std::string                 m_func_name;            ///< The name of the function to add checks to
     DynamicCheckerFunctions    &m_checker_functions;    ///< The checker functions for the process
 };