GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcompiler_rt/modti3.c Lines: 0 7 0.0 %
Date: 2017-11-13 Branches: 0 0 0.0 %

Line Branch Exec Source
1
/* ===-- modti3.c - Implement __modti3 -------------------------------------===
2
 *
3
 *                     The LLVM Compiler Infrastructure
4
 *
5
 * This file is dual licensed under the MIT and the University of Illinois Open
6
 * Source Licenses. See LICENSE.TXT for details.
7
 *
8
 * ===----------------------------------------------------------------------===
9
 *
10
 * This file implements __modti3 for the compiler_rt library.
11
 *
12
 * ===----------------------------------------------------------------------===
13
 */
14
15
#include "int_lib.h"
16
17
#ifdef CRT_HAS_128BIT
18
19
/*Returns: a % b */
20
21
COMPILER_RT_ABI ti_int
22
__modti3(ti_int a, ti_int b)
23
{
24
    const int bits_in_tword_m1 = (int)(sizeof(ti_int) * CHAR_BIT) - 1;
25
    ti_int s = b >> bits_in_tword_m1;  /* s = b < 0 ? -1 : 0 */
26
    b = (b ^ s) - s;                   /* negate if s == -1 */
27
    s = a >> bits_in_tword_m1;         /* s = a < 0 ? -1 : 0 */
28
    a = (a ^ s) - s;                   /* negate if s == -1 */
29
    tu_int r;
30
    __udivmodti4(a, b, &r);
31
    return ((ti_int)r ^ s) - s;                /* negate if s == -1 */
32
}
33
34
#endif /* CRT_HAS_128BIT */