GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcompiler_rt/divti3.c Lines: 0 6 0.0 %
Date: 2017-11-07 Branches: 0 0 0.0 %

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/* ===-- divti3.c - Implement __divti3 -------------------------------------===
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 *
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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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 *
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 * This file implements __divti3 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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#ifdef CRT_HAS_128BIT
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/* Returns: a / b */
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COMPILER_RT_ABI ti_int
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__divti3(ti_int a, ti_int b)
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{
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    const int bits_in_tword_m1 = (int)(sizeof(ti_int) * CHAR_BIT) - 1;
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    ti_int s_a = a >> bits_in_tword_m1;           /* s_a = a < 0 ? -1 : 0 */
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    ti_int s_b = b >> bits_in_tword_m1;           /* s_b = b < 0 ? -1 : 0 */
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    a = (a ^ s_a) - s_a;                         /* negate if s_a == -1 */
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    b = (b ^ s_b) - s_b;                         /* negate if s_b == -1 */
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    s_a ^= s_b;                                  /* sign of quotient */
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    return (__udivmodti4(a, b, (tu_int*)0) ^ s_a) - s_a;  /* negate if s_a == -1 */
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}
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#endif /* CRT_HAS_128BIT */