3 void isl_seq_clr(isl_int
*p
, unsigned len
)
6 for (i
= 0; i
< len
; ++i
)
7 isl_int_set_si(p
[i
], 0);
10 void isl_seq_neg(isl_int
*dst
, isl_int
*src
, unsigned len
)
13 for (i
= 0; i
< len
; ++i
)
14 isl_int_neg(dst
[i
], src
[i
]);
17 void isl_seq_cpy(isl_int
*dst
, isl_int
*src
, unsigned len
)
20 for (i
= 0; i
< len
; ++i
)
21 isl_int_set(dst
[i
], src
[i
]);
24 void isl_seq_submul(isl_int
*dst
, isl_int f
, isl_int
*src
, unsigned len
)
27 for (i
= 0; i
< len
; ++i
)
28 isl_int_submul(dst
[i
], f
, src
[i
]);
31 void isl_seq_swp_or_cpy(isl_int
*dst
, isl_int
*src
, unsigned len
)
34 for (i
= 0; i
< len
; ++i
)
35 isl_int_swap_or_set(dst
[i
], src
[i
]);
38 void isl_seq_scale(isl_int
*dst
, isl_int
*src
, isl_int m
, unsigned len
)
41 for (i
= 0; i
< len
; ++i
)
42 isl_int_mul(dst
[i
], src
[i
], m
);
45 void isl_seq_scale_down(isl_int
*dst
, isl_int
*src
, isl_int m
, unsigned len
)
48 for (i
= 0; i
< len
; ++i
)
49 isl_int_divexact(dst
[i
], src
[i
], m
);
52 void isl_seq_fdiv_q(isl_int
*dst
, isl_int
*src
, isl_int m
, unsigned len
)
55 for (i
= 0; i
< len
; ++i
)
56 isl_int_fdiv_q(dst
[i
], src
[i
], m
);
59 void isl_seq_fdiv_r(isl_int
*dst
, isl_int
*src
, isl_int m
, unsigned len
)
62 for (i
= 0; i
< len
; ++i
)
63 isl_int_fdiv_r(dst
[i
], src
[i
], m
);
66 void isl_seq_combine(isl_int
*dst
, isl_int m1
, isl_int
*src1
,
67 isl_int m2
, isl_int
*src2
, unsigned len
)
73 for (i
= 0; i
< len
; ++i
) {
74 isl_int_mul(tmp
, m1
, src1
[i
]);
75 isl_int_addmul(tmp
, m2
, src2
[i
]);
76 isl_int_set(dst
[i
], tmp
);
82 * Let d = dst[pos] and s = src[pos]
83 * dst is replaced by |s| dst - sgn(s)d src
85 void isl_seq_elim(isl_int
*dst
, isl_int
*src
, unsigned pos
, unsigned len
,
91 if (isl_int_is_zero(dst
[pos
]))
97 isl_int_gcd(a
, src
[pos
], dst
[pos
]);
98 isl_int_divexact(b
, dst
[pos
], a
);
99 if (isl_int_is_pos(src
[pos
]))
101 isl_int_divexact(a
, src
[pos
], a
);
103 isl_seq_combine(dst
, a
, dst
, b
, src
, len
);
106 isl_int_mul(*m
, *m
, a
);
112 int isl_seq_eq(isl_int
*p1
, isl_int
*p2
, unsigned len
)
115 for (i
= 0; i
< len
; ++i
)
116 if (isl_int_ne(p1
[i
], p2
[i
]))
121 int isl_seq_cmp(isl_int
*p1
, isl_int
*p2
, unsigned len
)
125 for (i
= 0; i
< len
; ++i
)
126 if ((cmp
= isl_int_cmp(p1
[i
], p2
[i
])) != 0)
131 int isl_seq_is_neg(isl_int
*p1
, isl_int
*p2
, unsigned len
)
135 for (i
= 0; i
< len
; ++i
) {
136 if (isl_int_abs_ne(p1
[i
], p2
[i
]))
138 if (isl_int_is_zero(p1
[i
]))
140 if (isl_int_eq(p1
[i
], p2
[i
]))
146 int isl_seq_first_non_zero(isl_int
*p
, unsigned len
)
150 for (i
= 0; i
< len
; ++i
)
151 if (!isl_int_is_zero(p
[i
]))
156 int isl_seq_abs_min_non_zero(isl_int
*p
, unsigned len
)
158 int i
, min
= isl_seq_first_non_zero(p
, len
);
161 for (i
= min
+ 1; i
< len
; ++i
) {
162 if (isl_int_is_zero(p
[i
]))
164 if (isl_int_abs_lt(p
[i
], p
[min
]))
170 void isl_seq_gcd(isl_int
*p
, unsigned len
, isl_int
*gcd
)
172 int i
, min
= isl_seq_abs_min_non_zero(p
, len
);
175 isl_int_set_si(*gcd
, 0);
178 isl_int_abs(*gcd
, p
[min
]);
179 for (i
= 0; isl_int_cmp_si(*gcd
, 1) > 0 && i
< len
; ++i
) {
182 if (isl_int_is_zero(p
[i
]))
184 isl_int_gcd(*gcd
, *gcd
, p
[i
]);
188 void isl_seq_normalize(isl_int
*p
, unsigned len
)
195 isl_seq_gcd(p
, len
, &gcd
);
196 if (!isl_int_is_zero(gcd
))
197 isl_seq_scale_down(p
, p
, gcd
, len
);
201 void isl_seq_lcm(isl_int
*p
, unsigned len
, isl_int
*lcm
)
206 isl_int_set_si(*lcm
, 1);
209 isl_int_set(*lcm
, p
[0]);
210 for (i
= 1; i
< len
; ++i
)
211 isl_int_lcm(*lcm
, *lcm
, p
[i
]);
214 void isl_seq_inner_product(isl_int
*p1
, isl_int
*p2
, unsigned len
,
219 isl_int_set_si(*prod
, 0);
222 isl_int_mul(*prod
, p1
[0], p2
[0]);
223 for (i
= 1; i
< len
; ++i
)
224 isl_int_addmul(*prod
, p1
[i
], p2
[i
]);
227 uint32_t isl_seq_hash(isl_int
*p
, unsigned len
, uint32_t hash
)
230 for (i
= 0; i
< len
; ++i
) {
231 if (isl_int_is_zero(p
[i
]))
235 hash
= isl_int_hash(p
[i
], hash
);
240 uint32_t isl_seq_get_hash(isl_int
*p
, unsigned len
)
242 uint32_t hash
= isl_hash_init();
244 return isl_seq_hash(p
, len
, hash
);
247 uint32_t isl_seq_get_hash_bits(isl_int
*p
, unsigned len
, unsigned bits
)
251 hash
= isl_seq_get_hash(p
, len
);
252 return isl_hash_bits(hash
, bits
);