Created attachment 35527 [details]
The preprocessed code stripped with the delta tool.

The following code (reduced from [vexcl](https://github.com/ddemidov/vexcl) library) leads to an internal compiler error:

$ cat strip_typedefs_ice.cpp
#include <memory>
typedef int32_t cl_int __attribute__((aligned(4)));
struct buffer_unmapper {
    void operator()(cl_int* ptr) const {
    }
};
typedef std::unique_ptr<cl_int[], buffer_unmapper> mapped_array;

$ g++ -c -std=c++11 strip_typedefs_ice.cpp                                                                                          
strip_typedefs_ice.cpp:7:50: internal compiler error: in strip_typedefs, at cp/tree.c:1369
 typedef std::unique_ptr<cl_int[], buffer_unmapper> mapped_array;
                                                  ^