GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcompiler_rt/fixunsxfti.c Lines: 0 12 0.0 %
Date: 2017-11-07 Branches: 0 8 0.0 %

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/* ===-- fixunsxfti.c - Implement __fixunsxfti -----------------------------===
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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 __fixunsxfti 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: convert a to a unsigned long long, rounding toward zero.
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 *          Negative values all become zero.
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 */
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/* Assumption: long double is an intel 80 bit floating point type padded with 6 bytes
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 *             tu_int is a 128 bit integral type
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 *             value in long double is representable in tu_int or is negative
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 */
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/* gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
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 * 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
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 */
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COMPILER_RT_ABI tu_int
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__fixunsxfti(long double a)
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{
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    long_double_bits fb;
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    fb.f = a;
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    int e = (fb.u.high.s.low & 0x00007FFF) - 16383;
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    if (e < 0 || (fb.u.high.s.low & 0x00008000))
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        return 0;
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    if ((unsigned)e > sizeof(tu_int) * CHAR_BIT)
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        return ~(tu_int)0;
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    tu_int r = fb.u.low.all;
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    if (e > 63)
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        r <<= (e - 63);
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    else
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        r >>= (63 - e);
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    return r;
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}
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#endif /* CRT_HAS_128BIT */