Coverage Report

Created: 2025-11-06 06:16

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/zlib-ng/adler32_p.h
Line
Count
Source
1
/* adler32_p.h -- Private inline functions and macros shared with
2
 *                different computation of the Adler-32 checksum
3
 *                of a data stream.
4
 * Copyright (C) 1995-2011, 2016 Mark Adler
5
 * For conditions of distribution and use, see copyright notice in zlib.h
6
 */
7
8
#ifndef ADLER32_P_H
9
#define ADLER32_P_H
10
11
678k
#define BASE 65521U     /* largest prime smaller than 65536 */
12
14.8k
#define NMAX 5552
13
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
14
15
0
#define ADLER_DO1(sum1, sum2, buf, i)  {(sum1) += buf[(i)]; (sum2) += (sum1);}
16
0
#define ADLER_DO2(sum1, sum2, buf, i)  {ADLER_DO1(sum1, sum2, buf, i); ADLER_DO1(sum1, sum2, buf, i+1);}
17
0
#define ADLER_DO4(sum1, sum2, buf, i)  {ADLER_DO2(sum1, sum2, buf, i); ADLER_DO2(sum1, sum2, buf, i+2);}
18
0
#define ADLER_DO8(sum1, sum2, buf, i)  {ADLER_DO4(sum1, sum2, buf, i); ADLER_DO4(sum1, sum2, buf, i+4);}
19
#define ADLER_DO16(sum1, sum2, buf)    {ADLER_DO8(sum1, sum2, buf, 0); ADLER_DO8(sum1, sum2, buf, 8);}
20
21
0
static inline uint32_t adler32_len_1(uint32_t adler, const uint8_t *buf, uint32_t sum2) {
22
0
    adler += buf[0];
23
0
    adler %= BASE;
24
0
    sum2 += adler;
25
0
    sum2 %= BASE;
26
0
    return adler | (sum2 << 16);
27
0
}
Unexecuted instantiation: adler32_ssse3.c:adler32_len_1
Unexecuted instantiation: adler32_sse42.c:adler32_len_1
Unexecuted instantiation: adler32_avx2.c:adler32_len_1
Unexecuted instantiation: adler32_avx512.c:adler32_len_1
Unexecuted instantiation: adler32_avx512_vnni.c:adler32_len_1
Unexecuted instantiation: adler32_c.c:adler32_len_1
28
29
16.0k
static inline uint32_t adler32_len_16(uint32_t adler, const uint8_t *buf, size_t len, uint32_t sum2) {
30
139k
    while (len) {
31
123k
        --len;
32
123k
        adler += *buf++;
33
123k
        sum2 += adler;
34
123k
    }
35
16.0k
    adler %= BASE;
36
16.0k
    sum2 %= BASE;            /* only added so many BASE's */
37
    /* return recombined sums */
38
16.0k
    return adler | (sum2 << 16);
39
16.0k
}
adler32_ssse3.c:adler32_len_16
Line
Count
Source
29
7.42k
static inline uint32_t adler32_len_16(uint32_t adler, const uint8_t *buf, size_t len, uint32_t sum2) {
30
63.8k
    while (len) {
31
56.4k
        --len;
32
56.4k
        adler += *buf++;
33
56.4k
        sum2 += adler;
34
56.4k
    }
35
7.42k
    adler %= BASE;
36
7.42k
    sum2 %= BASE;            /* only added so many BASE's */
37
    /* return recombined sums */
38
7.42k
    return adler | (sum2 << 16);
39
7.42k
}
Unexecuted instantiation: adler32_sse42.c:adler32_len_16
adler32_avx2.c:adler32_len_16
Line
Count
Source
29
8.64k
static inline uint32_t adler32_len_16(uint32_t adler, const uint8_t *buf, size_t len, uint32_t sum2) {
30
75.2k
    while (len) {
31
66.5k
        --len;
32
66.5k
        adler += *buf++;
33
66.5k
        sum2 += adler;
34
66.5k
    }
35
8.64k
    adler %= BASE;
36
8.64k
    sum2 %= BASE;            /* only added so many BASE's */
37
    /* return recombined sums */
38
8.64k
    return adler | (sum2 << 16);
39
8.64k
}
Unexecuted instantiation: adler32_avx512.c:adler32_len_16
Unexecuted instantiation: adler32_avx512_vnni.c:adler32_len_16
Unexecuted instantiation: adler32_c.c:adler32_len_16
40
41
15.8k
static inline uint32_t adler32_copy_len_16(uint32_t adler, const uint8_t *buf, uint8_t *dst, size_t len, uint32_t sum2) {
42
141k
    while (len--) {
43
125k
        *dst = *buf++;
44
125k
        adler += *dst++;
45
125k
        sum2 += adler;
46
125k
    }
47
15.8k
    adler %= BASE;
48
15.8k
    sum2 %= BASE;            /* only added so many BASE's */
49
    /* return recombined sums */
50
15.8k
    return adler | (sum2 << 16);
51
15.8k
}
Unexecuted instantiation: adler32_ssse3.c:adler32_copy_len_16
adler32_sse42.c:adler32_copy_len_16
Line
Count
Source
41
7.07k
static inline uint32_t adler32_copy_len_16(uint32_t adler, const uint8_t *buf, uint8_t *dst, size_t len, uint32_t sum2) {
42
64.5k
    while (len--) {
43
57.4k
        *dst = *buf++;
44
57.4k
        adler += *dst++;
45
57.4k
        sum2 += adler;
46
57.4k
    }
47
7.07k
    adler %= BASE;
48
7.07k
    sum2 %= BASE;            /* only added so many BASE's */
49
    /* return recombined sums */
50
7.07k
    return adler | (sum2 << 16);
51
7.07k
}
adler32_avx2.c:adler32_copy_len_16
Line
Count
Source
41
8.82k
static inline uint32_t adler32_copy_len_16(uint32_t adler, const uint8_t *buf, uint8_t *dst, size_t len, uint32_t sum2) {
42
76.8k
    while (len--) {
43
68.0k
        *dst = *buf++;
44
68.0k
        adler += *dst++;
45
68.0k
        sum2 += adler;
46
68.0k
    }
47
8.82k
    adler %= BASE;
48
8.82k
    sum2 %= BASE;            /* only added so many BASE's */
49
    /* return recombined sums */
50
8.82k
    return adler | (sum2 << 16);
51
8.82k
}
Unexecuted instantiation: adler32_avx512.c:adler32_copy_len_16
Unexecuted instantiation: adler32_avx512_vnni.c:adler32_copy_len_16
Unexecuted instantiation: adler32_c.c:adler32_copy_len_16
52
53
0
static inline uint32_t adler32_len_64(uint32_t adler, const uint8_t *buf, size_t len, uint32_t sum2) {
54
#ifdef UNROLL_MORE
55
    while (len >= 16) {
56
        len -= 16;
57
        ADLER_DO16(adler, sum2, buf);
58
        buf += 16;
59
#else
60
0
    while (len >= 8) {
61
0
        len -= 8;
62
0
        ADLER_DO8(adler, sum2, buf, 0);
63
0
        buf += 8;
64
0
#endif
65
0
    }
66
    /* Process tail (len < 16).  */
67
0
    return adler32_len_16(adler, buf, len, sum2);
68
0
}
Unexecuted instantiation: adler32_ssse3.c:adler32_len_64
Unexecuted instantiation: adler32_sse42.c:adler32_len_64
Unexecuted instantiation: adler32_avx2.c:adler32_len_64
Unexecuted instantiation: adler32_avx512.c:adler32_len_64
Unexecuted instantiation: adler32_avx512_vnni.c:adler32_len_64
Unexecuted instantiation: adler32_c.c:adler32_len_64
69
70
#endif /* ADLER32_P_H */