[Bug sanitizer/78708] [7 Regression][ASAN][LTO] ICE in expand_ASAN_MARK, at internal-fn.c:380 - when compiling but not linking with ASAN

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78708

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |7.0
            Summary|[ASAN][LTO] ICE in          |[7 Regression][ASAN][LTO]
                   |expand_ASAN_MARK, at        |ICE in expand_ASAN_MARK, at
                   |internal-fn.c:380 - when    |internal-fn.c:380 - when
                   |compiling but not linking   |compiling but not linking
                   |with ASAN                   |with ASAN

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Test case (works with GCC 6)

g++ -fsanitize=address -flto -o test.o -c test.ii
g++ test.o

gives the ICE from above. Using:
--------
namespace std {
  template < class _E > class initializer_list {
    typedef const _E *iterator;
    iterator _M_array;
    long unsigned int _M_len;
  };
}
struct Box { };
static void foo (Box * __restrict out2) {
  Box b;
  *out2 = b;
}