[Bug tree-optimization/44688] [4.6/4.7 Regression] Excessive code-size growth at -O3

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44688

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-22 
10:11:11 UTC ---
Testcase:

void foo (int * __restrict a, int * __restrict b, int * __restrict c, 
          unsigned n)
{
  unsigned i;
  for (i = 0; i < n; ++i)
    a[i] = b[i] + c[i];
}