[Bug rtl-optimization/61522] [4.10 regression] ICE while building libgcc in LRA

["ramana at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61522

--- Comment #2 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
Same failure also with 

./cc1 -O2 -fPIC -march=armv7-a test.c


$> cat test.c


typedef int(__kernel_cmpxchg64_t)(const long long *oldval,
                                  const long long *newval, long long *ptr);
long long __attribute__((visibility("hidden")))
__sync_fetch_and_nand_8(long long *ptr, long long val) {
  int failure;
  long long tmp, tmp2;
  do {
    tmp = *ptr;
    tmp2 = ~(tmp & val);
    failure = (*(__kernel_cmpxchg64_t *)0xffff0f60)(&tmp, &tmp2, ptr);
  } while (failure != 0);
}