3 #define HOST_WIDE_INT long
4 #define HOST_BITS_PER_WIDE_INT (sizeof(long)*8)
8 unsigned int precision : 9;
12 sign_bit_p (struct tree_type *t, HOST_WIDE_INT val_hi, unsigned HOST_WIDE_INT val_lo)
14 unsigned HOST_WIDE_INT mask_lo, lo;
15 HOST_WIDE_INT mask_hi, hi;
16 int width = t->precision;
18 if (width > HOST_BITS_PER_WIDE_INT)
20 hi = (unsigned HOST_WIDE_INT) 1 << (width - HOST_BITS_PER_WIDE_INT - 1);
23 mask_hi = ((unsigned HOST_WIDE_INT) -1
24 >> (2 * HOST_BITS_PER_WIDE_INT - width));
30 lo = (unsigned HOST_WIDE_INT) 1 << (width - 1);
33 mask_lo = ((unsigned HOST_WIDE_INT) -1
34 >> (HOST_BITS_PER_WIDE_INT - width));
37 if ((val_hi & mask_hi) == hi
38 && (val_lo & mask_lo) == lo)
48 if (!sign_bit_p (&t, 0, -1))