d5038b3774
This function was already conceptually in the CLC namespace - this just formally moves it over. Note however that this commit marks a change in how libclc functions may be overridden by targets. Until now we have been using a purely build-system-based approach where targets could register identically-named files which took responsibility for the implementation of the builtin in its entirety. This system wasn't well equipped to deal with AMD's overriding of __clc_ldexp for only a subset of types, and furthermore conditionally on a pre-defined macro. One option for handling this would be to require AMD to duplicate code for the versions of __clc_ldexp it's *not* interested in overriding. We could also make it easier for targets to re-define CLC functions through macros or .inc files. Both of these have obvious downsides. We could also keep AMD's overriding in the OpenCL layer and bypass CLC altogether, but this has limited use. We could use weak linkage on the "base" implementations of CLC functions, and allow targets to opt-in to providing their own implementations on a much finer granularity. This commit supports this as a proof of concept; we could expand it to all CLC builtins if accepted. Note that the existing filename-based "claiming" approach is still in effect, so targets have to name their overrides differently to have both files compiled. This could also be refined.
48 lines
1.7 KiB
Common Lisp
48 lines
1.7 KiB
Common Lisp
/*
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* Copyright (c) 2014 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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#include <clc/clc.h>
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#include <clc/clcmacro.h>
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#include <clc/math/clc_ldexp.h>
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_CLC_DEFINE_BINARY_BUILTIN_NO_SCALARIZE(float, ldexp, __clc_ldexp, float, int)
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#ifdef cl_khr_fp64
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#pragma OPENCL EXTENSION cl_khr_fp64 : enable
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_CLC_DEFINE_BINARY_BUILTIN_NO_SCALARIZE(double, ldexp, __clc_ldexp, double, int)
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#endif
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#ifdef cl_khr_fp16
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#pragma OPENCL EXTENSION cl_khr_fp16 : enable
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_CLC_DEFINE_BINARY_BUILTIN_NO_SCALARIZE(half, ldexp, __clc_ldexp, half, int)
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#endif
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// This defines all the ldexp(GENTYPE, int) variants
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#define __CLC_BODY <ldexp.inc>
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#include <clc/math/gentype.inc>
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