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Diffstat (limited to 'r600/lib/math/sqrt.cl')
-rw-r--r-- | r600/lib/math/sqrt.cl | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/r600/lib/math/sqrt.cl b/r600/lib/math/sqrt.cl deleted file mode 100644 index 3e5b17c..0000000 --- a/r600/lib/math/sqrt.cl +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 2015 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include <clc/clc.h> -#include "../../../generic/lib/clcmacro.h" -#include "math/clc_sqrt.h" - -_CLC_DEFINE_UNARY_BUILTIN(float, sqrt, __clc_sqrt, float) - -#ifdef cl_khr_fp64 - -#pragma OPENCL EXTENSION cl_khr_fp64 : enable - - -_CLC_OVERLOAD _CLC_DEF double sqrt(double x) { - - uint vcc = x < 0x1p-767; - uint exp0 = vcc ? 0x100 : 0; - unsigned exp1 = vcc ? 0xffffff80 : 0; - - double v01 = ldexp(x, exp0); - double v23 = __builtin_amdgpu_rsq(v01); - double v45 = v01 * v23; - v23 = v23 * 0.5; - - double v67 = fma(-v23, v45, 0.5); - v45 = fma(v45, v67, v45); - double v89 = fma(-v45, v45, v01); - v23 = fma(v23, v67, v23); - v45 = fma(v89, v23, v45); - v67 = fma(-v45, v45, v01); - v23 = fma(v67, v23, v45); - - v23 = ldexp(v23, exp1); - return ((x == __builtin_inf()) || (x == 0.0)) ? v01 : v23; -} - -_CLC_UNARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, sqrt, double); - -#endif |