modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/pr31703.c

typedef unsigned long long HARD_REG_ELT_TYPE;
static HARD_REG_ELT_TYPE reload_reg_used_in_output_addr[30];
int reload_reg_reaches_end_p (unsigned int regno, int opnum)
{
    int i;
    for (i = opnum + 1; i < opnum; i++)
        if (reload_reg_used_in_output_addr[i]
            & ((HARD_REG_ELT_TYPE)1 << regno))
            return 0;
}