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/*===-- moddi3.c - Implement __moddi3 -------------------------------------=== 
 * 
 *                    The LLVM Compiler Infrastructure 
 * 
 * This file is dual licensed under the MIT and the University of Illinois Open 
 * Source Licenses. See LICENSE.TXT for details. 
 * 
 * ===----------------------------------------------------------------------=== 
 * 
 * This file implements __moddi3 for the compiler_rt library. 
 * 
 * ===----------------------------------------------------------------------=== 
 */ 
 
#include "int_lib.h" 
 
/* Returns: a % b */ 
 
COMPILER_RT_ABI di_int 
__moddi3(di_int a, di_int b) 
{ 
    const int bits_in_dword_m1 = (int)(sizeof(di_int) * CHAR_BIT) - 1; 
    di_int s = b >> bits_in_dword_m1;  /* s = b < 0 ? -1 : 0 */ 
    b = (b ^ s) - s;                   /* negate if s == -1 */ 
    s = a >> bits_in_dword_m1;         /* s = a < 0 ? -1 : 0 */ 
    a = (a ^ s) - s;                   /* negate if s == -1 */ 
    du_int r; 
    __udivmoddi4(a, b, &r); 
    return ((di_int)r ^ s) - s;                /* negate if s == -1 */ 
}