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authorRajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>2018-08-20 08:47:43 +0530
committerRajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>2018-08-20 08:47:43 +0530
commitfa78896b1f9b30479c236acfaa0dcb72ba9018b6 (patch)
tree0f766e9defcc3fefa6ee855ea2cfba70588c0e16 /sysdeps/powerpc/fpu/k_cosf.c
parent86a6c75a29483b6c5797c605abdd8f3dfd9a594a (diff)
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powerpc: Remove powerpc specific sinf and cosf optimization
New generic optimization of sinf and cosf introduced by commit 599cf3976679e1b345307d9c02057f02aa95528f shows improvement compared to powerpc specific assembly version. Hence removing the powerpc assembly versions to make use of generic code.
Diffstat (limited to 'sysdeps/powerpc/fpu/k_cosf.c')
-rw-r--r--sysdeps/powerpc/fpu/k_cosf.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/sysdeps/powerpc/fpu/k_cosf.c b/sysdeps/powerpc/fpu/k_cosf.c
deleted file mode 100644
index 32d590d..0000000
--- a/sysdeps/powerpc/fpu/k_cosf.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* k_cosf.c -- float version of k_cos.c
- Copyright (C) 2011-2018 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, see <http://www.gnu.org/licenses/>. */
-
-#include <math.h>
-#include <fenv.h>
-#include <math_private.h>
-
-static const float twom27 = 7.4505806e-09;
-static const float dot3 = 3.0000001e-01;
-static const float dot78125 = 7.8125000e-01;
-
-static const float one = 1.0000000000e+00;
-static const float C1 = 4.1666667908e-02;
-static const float C2 = -1.3888889225e-03;
-static const float C3 = 2.4801587642e-05;
-static const float C4 = -2.7557314297e-07;
-static const float C5 = 2.0875723372e-09;
-static const float C6 = -1.1359647598e-11;
-
-float
-__kernel_cosf (float x, float y)
-{
- float a, hz, z, r, qx;
- float ix;
- ix = __builtin_fabsf (x);
- if (ix < twom27)
- { /* |x| < 2**-27 */
- __feraiseexcept (FE_INEXACT);
- return one;
- }
- z = x * x;
- r = z * (C1 + z * (C2 + z * (C3 + z * (C4 + z * (C5 + z * C6)))));
- if (ix < dot3) /* if |x| < 0.3 */
- return one - ((float) 0.5 * z - (z * r - x * y));
- else
- {
- if (ix > dot78125)
- { /* x > 0.78125 */
- qx = (float) 0.28125;
- }
- else
- {
- qx = ix / 4.0;
- }
- hz = (float) 0.5 *z - qx;
- a = one - qx;
- return a - (hz - (z * r - x * y));
- }
-}