9e0b2b68c2
Having the fp16 pragmas enabled in the header file is risky. The macros defined by that header don't (and can't) include the pragmas that make fp16 types themselves legal, and another header may disable the fp16 pragma before the macro's use. The safest thing to do is the use of pragmas surrounding each use of the macro in the implementation files. This pattern is also far more common across the codebase.
140 lines
3.5 KiB
Common Lisp
140 lines
3.5 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 "math.h"
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#include "sincospiF_piby4.h"
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#ifdef cl_khr_fp64
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#include "sincosD_piby4.h"
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#endif
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_CLC_OVERLOAD _CLC_DEF float sinpi(float x)
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{
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int ix = as_int(x);
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int xsgn = ix & 0x80000000;
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ix ^= xsgn;
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float ax = as_float(ix);
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int iax = (int)ax;
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float r = ax - iax;
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int xodd = xsgn ^ (iax & 0x1 ? 0x80000000 : 0);
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// Initialize with return for +-Inf and NaN
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int ir = 0x7fc00000;
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// 2^23 <= |x| < Inf, the result is always integer
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ir = ix < 0x7f800000 ? xsgn : ir;
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// 0x1.0p-7 <= |x| < 2^23, result depends on which 0.25 interval
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// r < 1.0
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float a = 1.0f - r;
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int e = 0;
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// r <= 0.75
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int c = r <= 0.75f;
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a = c ? r - 0.5f : a;
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e = c ? 1 : e;
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// r < 0.5
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c = r < 0.5f;
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a = c ? 0.5f - r : a;
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// 0 < r <= 0.25
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c = r <= 0.25f;
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a = c ? r : a;
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e = c ? 0 : e;
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float2 t = __libclc__sincosf_piby4(a * M_PI_F);
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int jr = xodd ^ as_int(e ? t.hi : t.lo);
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ir = ix < 0x4b000000 ? jr : ir;
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return as_float(ir);
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}
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_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, sinpi, float);
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#ifdef cl_khr_fp64
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#pragma OPENCL EXTENSION cl_khr_fp64 : enable
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_CLC_OVERLOAD _CLC_DEF double sinpi(double x)
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{
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long ix = as_long(x);
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long xsgn = ix & 0x8000000000000000L;
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ix ^= xsgn;
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double ax = as_double(ix);
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long iax = (long)ax;
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double r = ax - (double)iax;
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long xodd = xsgn ^ (iax & 0x1L ? 0x8000000000000000L : 0L);
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// Initialize with return for +-Inf and NaN
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long ir = 0x7ff8000000000000L;
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// 2^23 <= |x| < Inf, the result is always integer
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ir = ix < 0x7ff0000000000000 ? xsgn : ir;
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// 0x1.0p-7 <= |x| < 2^23, result depends on which 0.25 interval
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// r < 1.0
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double a = 1.0 - r;
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int e = 0;
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// r <= 0.75
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int c = r <= 0.75;
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double t = r - 0.5;
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a = c ? t : a;
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e = c ? 1 : e;
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// r < 0.5
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c = r < 0.5;
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t = 0.5 - r;
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a = c ? t : a;
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// r <= 0.25
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c = r <= 0.25;
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a = c ? r : a;
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e = c ? 0 : e;
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double api = a * M_PI;
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double2 sc = __libclc__sincos_piby4(api, 0.0);
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long jr = xodd ^ as_long(e ? sc.hi : sc.lo);
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ir = ax < 0x1.0p+52 ? jr : ir;
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return as_double(ir);
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}
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_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, sinpi, double)
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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_UNARY_BUILTIN_FP16(sinpi)
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#endif
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