GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcompiler_rt/ffsdi2.c Lines: 0 6 0.0 %
Date: 2017-11-07 Branches: 0 4 0.0 %

Line Branch Exec Source
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/* ===-- ffsdi2.c - Implement __ffsdi2 -------------------------------------===
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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 __ffsdi2 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: the index of the least significant 1-bit in a, or
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 * the value zero if a is zero. The least significant bit is index one.
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 */
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COMPILER_RT_ABI si_int
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__ffsdi2(di_int a)
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{
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    dwords x;
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    x.all = a;
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    if (x.s.low == 0)
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    {
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        if (x.s.high == 0)
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            return 0;
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        return __builtin_ctz(x.s.high) + (1 + sizeof(si_int) * CHAR_BIT);
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    }
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    return __builtin_ctz(x.s.low) + 1;
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}