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Diffstat (limited to 'newlib/libm/machine/spu/headers/fmax.h')
-rw-r--r-- | newlib/libm/machine/spu/headers/fmax.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/newlib/libm/machine/spu/headers/fmax.h b/newlib/libm/machine/spu/headers/fmax.h deleted file mode 100644 index f3e3358e6..000000000 --- a/newlib/libm/machine/spu/headers/fmax.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - (C) Copyright 2001,2006, - International Business Machines Corporation, - Sony Computer Entertainment, Incorporated, - Toshiba 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 names of the copyright holders nor the names of their - 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. -*/ -#ifndef _FMAX_H_ -#define _FMAX_H_ 1 - -#include <spu_intrinsics.h> -#include "headers/vec_literal.h" - -/* Return the maximum numeric value of their arguments. If one argument - * is a NaN, fmax returns the other value. If both are NaNs, then a NaN - * is returned. - * - * Notes: - * 1) Double precision denorms equate to zero so two denorms compare - * equal thereby making the following true for two denorm inputs - * fmax(a, b) != fmax(b, a); - */ -static __inline double _fmax(double x, double y) -{ - vec_uint4 nan_x, selector, abs_x, gt, eq; - vec_uint4 sign = VEC_LITERAL(vec_uint4, 0x80000000, 0, 0x80000000, 0); - vec_uint4 infinity = VEC_LITERAL(vec_uint4, 0x7FF00000, 0, 0x7FF00000, 0); - vec_double2 vx, vy, diff, max; - - vx = spu_promote(x, 0); - vy = spu_promote(y, 0); - - /* If x is a NaN, then select y as max - */ - abs_x = spu_andc((vec_uint4)vx, sign); - gt = spu_cmpgt(abs_x, infinity); - eq = spu_cmpeq(abs_x, infinity); - - nan_x = spu_or(gt, spu_and(eq, spu_rlqwbyte(gt, 4))); - - diff = spu_sub(vx, vy); - selector = spu_orc(nan_x, spu_cmpgt((vec_int4)diff, -1)); - selector = spu_maskw(spu_extract(selector, 0)); - - max = spu_sel(vx, vy, (vec_ullong2)selector); - - return (spu_extract(max, 0)); -} - -#endif /* _FMAX_H_ */ |