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56 lines
1.9 KiB
56 lines
1.9 KiB
/*
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* Copyright (c) 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#if __CLC_FPSIZE == 64
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#define MIN_CONSTANT 0x1.fffffffffffffp-1
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#define ZERO 0.0
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#elif __CLC_FPSIZE == 32
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#define MIN_CONSTANT 0x1.fffffep-1f
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#define ZERO 0.0f
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#elif __CLC_FPSIZE == 16
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#define MIN_CONSTANT 0x1.ffcp-1h
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#define ZERO 0.0h
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#endif
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_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fract(__CLC_GENTYPE x, private __CLC_GENTYPE *iptr) {
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*iptr = floor(x);
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__CLC_GENTYPE r = fmin(x - *iptr, MIN_CONSTANT);
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r = isinf(x) ? ZERO : r;
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r = isnan(x) ? x : r;
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return r;
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}
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#define FRACT_DEF(addrspace) \
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_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fract(__CLC_GENTYPE x, addrspace __CLC_GENTYPE *iptr) { \
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__CLC_GENTYPE private_iptr; \
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__CLC_GENTYPE ret = fract(x, &private_iptr); \
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*iptr = private_iptr; \
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return ret; \
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}
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FRACT_DEF(local);
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FRACT_DEF(global);
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#undef MIN_CONSTANT
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#undef ZERO
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