derek.holloway
7502bf64a4
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30 lines
770 B
Common Lisp
30 lines
770 B
Common Lisp
/*===--------------------------------------------------------------------------
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* ROCm Device Libraries
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*
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* This file is distributed under the University of Illinois Open Source
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* License. See LICENSE.TXT for details.
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*===------------------------------------------------------------------------*/
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#include "mathF.h"
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#define FLOAT_SPECIALIZATION
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#include "ep.h"
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extern CONSTATTR float2 MATH_PRIVATE(epexpep)(float2 x);
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CONSTATTR float
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MATH_MANGLE(cosh)(float x)
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{
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x = BUILTIN_ABS_F32(x);
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float2 e = MATH_PRIVATE(epexpep)(sub(x, con(0x1.62e430p-1f, -0x1.05c610p-29f)));
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float2 c = fadd(e, ldx(rcp(e), -2));
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float z = c.hi;
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if (!FINITE_ONLY_OPT()) {
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z = x > 0x1.65a9f8p+6f ? PINF_F32 : z;
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}
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return z;
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}
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