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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#if __CLC_FPSIZE == 3210 11_CLC_OVERLOAD _CLC_DEF __CLC_FLOATN __clc_cos(__CLC_FLOATN x) {12 __CLC_FLOATN absx = __clc_fabs(x);13 14 __CLC_FLOATN r0, r1;15 __CLC_INTN regn = __clc_argReductionS(&r0, &r1, absx);16 17 __CLC_FLOATN ss = -__clc_sinf_piby4(r0, r1);18 __CLC_FLOATN cc = __clc_cosf_piby4(r0, r1);19 20 __CLC_FLOATN c = (regn & 1) != 0 ? ss : cc;21 c = __CLC_AS_FLOATN(__CLC_AS_INTN(c) ^ ((regn > 1) << 31));22 23 c = __clc_select(c, __CLC_GENTYPE_NAN, __clc_isnan(x) || __clc_isinf(x));24 25 return c;26}27 28#elif __CLC_FPSIZE == 1629 30_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __clc_cos(__CLC_GENTYPE x) {31 return __CLC_CONVERT_GENTYPE(__clc_cos(__CLC_CONVERT_FLOATN(x)));32}33 34#elif __CLC_FPSIZE == 6435 36_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __clc_cos(__CLC_GENTYPE x) {37 __CLC_GENTYPE absx = __clc_fabs(x);38 39 __CLC_BIT_INTN is_medium = absx < 0x1.0p+47;40 41 __CLC_INTN regn_m, regn_l;42 __CLC_GENTYPE r_m, r_l, rr_m, rr_l;43 44 __clc_remainder_piby2_medium(absx, &r_m, &rr_m, ®n_m);45 __clc_remainder_piby2_large(absx, &r_l, &rr_l, ®n_l);46 47 __CLC_GENTYPE r = is_medium ? r_m : r_l;48 __CLC_GENTYPE rr = is_medium ? rr_m : rr_l;49 __CLC_INTN regn = __CLC_CONVERT_INTN(is_medium) ? regn_m : regn_l;50 51 __CLC_GENTYPE sinval, cosval;52 __clc_sincos_piby4(r, rr, &sinval, &cosval);53 sinval = -sinval;54 55 __CLC_LONGN c =56 __CLC_AS_LONGN(__CLC_CONVERT_BIT_INTN((regn & 1) != 0) ? sinval : cosval);57 c ^= __CLC_CONVERT_BIT_INTN(regn > 1) << 63;58 59 return __clc_isnan(absx) | __clc_isinf(absx) ? __CLC_GENTYPE_NAN60 : __CLC_AS_GENTYPE(c);61}62 63#endif64