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Diffstat (limited to 'newlib/libm/machine/spu/headers/isnand2.h')
| -rw-r--r-- | newlib/libm/machine/spu/headers/isnand2.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/newlib/libm/machine/spu/headers/isnand2.h b/newlib/libm/machine/spu/headers/isnand2.h deleted file mode 100644 index 2d05e80c6..000000000 --- a/newlib/libm/machine/spu/headers/isnand2.h +++ /dev/null @@ -1,102 +0,0 @@ -/* -------------------------------------------------------------- */ -/* (C)Copyright 2006,2008, */ -/* International Business Machines Corporation */ -/* All Rights Reserved. */ -/* */ -/* Redistribution and use in source and binary forms, with or */ -/* without modification, are permitted provided that the */ -/* following conditions are met: */ -/* */ -/* - Redistributions of source code must retain the above copyright*/ -/* notice, this list of conditions and the following disclaimer. */ -/* */ -/* - Redistributions in binary form must reproduce the above */ -/* copyright notice, this list of conditions and the following */ -/* disclaimer in the documentation and/or other materials */ -/* provided with the distribution. */ -/* */ -/* - Neither the name of IBM Corporation nor the names of its */ -/* contributors may be used to endorse or promote products */ -/* derived from this software without specific prior written */ -/* permission. */ -/* */ -/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND */ -/* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, */ -/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ -/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ -/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR */ -/* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ -/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT */ -/* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ -/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) */ -/* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */ -/* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR */ -/* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ -/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* -------------------------------------------------------------- */ -/* PROLOG END TAG zYx */ -#ifdef __SPU__ -#ifndef _ISNAND2_H_ -#define _ISNAND2_H_ 1 - -#include <spu_intrinsics.h> - -/* - * FUNCTION - * vector unsigned long long _isnand2(vector double x) - * - * DESCRIPTION - * The _isnand2 function returns a vector in which each element indicates - * if the corresponding element of x is not a number. (NaN) - * - * RETURNS - * The function _isnand2 returns an unsigned long long vector in which - * each element is defined as: - * - * - ULLONG_MAX if the element of x is NaN - * - 0 otherwise - * - */ -static __inline vector unsigned long long _isnand2(vector double x) -{ - -#ifndef __SPU_EDP__ - - vec_uint4 sign_mask = (vec_uint4) { 0x7FFFFFFF, 0xFFFFFFFF, 0x7FFFFFFF, 0xFFFFFFFF }; - vec_uint4 test_mask = (vec_uint4) { 0x7FF00000, 0x00000000, 0x7FF00000, 0x00000000 }; - vec_uchar16 hi_promote = (vec_uchar16) { 0, 1, 2, 3, 0, 1, 2, 3, 8, 9, 10, 11, 8, 9, 10, 11 }; - - // Remove the sign bits - vec_uint4 signless = spu_and((vec_uint4)x,sign_mask); - - // Check if the high word is equal to the max_exp - vec_uint4 x2 = spu_cmpeq(signless,test_mask); - - // This checks two things: - // 1) If the high word is greater than max_exp (indicates a NaN) - // 2) If the low word is non-zero (indicates a NaN in conjunction with an - // exp equal to max_exp) - vec_uint4 x1 = spu_cmpgt(signless,test_mask); - - // rotate the low word test of x1 into the high word slot, then and it - // with the high word of x2 (checking for #2 above) - vec_uint4 exp_and_lw = spu_and(spu_rlqwbyte(x1,4),x2); - - // All the goodies are in the high words, so if the high word of either x1 - // or exp_and_lw is set, then we have a NaN, so we "or" them together - vec_uint4 result = spu_or(x1,exp_and_lw); - - // And then promote the resulting high word to 64 bit length - result = spu_shuffle(result,result,hi_promote); - - return (vec_ullong2) result; - -#else - - return spu_testsv(x, SPU_SV_NAN); - -#endif /* __SPU_EDP__ */ -} - -#endif // _ISNAND2_H_ -#endif /* __SPU__ */ |