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    /*===-- absvdi2.c - Implement __absvdi2 -----------------------------------===  | 
    
    
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     *                     The LLVM Compiler Infrastructure  | 
    
    
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     *  | 
    
    
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     * This file is dual licensed under the MIT and the University of Illinois Open  | 
    
    
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     * Source Licenses. See LICENSE.TXT for details.  | 
    
    
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     *  | 
    
    
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     *===----------------------------------------------------------------------===  | 
    
    
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     * This file implements __absvdi2 for the compiler_rt library.  | 
    
    
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     *  | 
    
    
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     *===----------------------------------------------------------------------===  | 
    
    
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     */  | 
    
    
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    #include "int_lib.h"  | 
    
    
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    /* Returns: absolute value */  | 
    
    
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    /* Effects: aborts if abs(x) < 0 */  | 
    
    
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    COMPILER_RT_ABI di_int  | 
    
    
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    __absvdi2(di_int a)  | 
    
    
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    { | 
    
    
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        const int N = (int)(sizeof(di_int) * CHAR_BIT);  | 
    
    
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        if (a == ((di_int)1 << (N-1)))  | 
    
    
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            compilerrt_abort();  | 
    
    
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        const di_int t = a >> (N - 1);  | 
    
    
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        return (a ^ t) - t;  | 
    
    
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    }  |