GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcompiler_rt/ctzdi2.c Lines: 0 4 0.0 %
Date: 2017-11-13 Branches: 0 0 0.0 %

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/* ===-- ctzdi2.c - Implement __ctzdi2 -------------------------------------===
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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 __ctzdi2 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 number of trailing 0-bits  */
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/* Precondition: a != 0 */
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COMPILER_RT_ABI si_int
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__ctzdi2(di_int a)
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{
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    dwords x;
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    x.all = a;
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    const si_int f = -(x.s.low == 0);
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    return __builtin_ctz((x.s.high & f) | (x.s.low & ~f)) +
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              (f & ((si_int)(sizeof(si_int) * CHAR_BIT)));
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}