clang-tests/gcc-4_2-testsuite/ignored/gcc.dg/tree-ssa/ifc-3.c

/* PR 20994 */
/* { dg-do compile } */
int foo(double* p, double* q)
{
    int i=0;

    for (; q!=p; ++q)
        if (*q)
            ++i;

    return i;
}