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Diffstat (limited to 'sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c')
-rw-r--r--sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c60
1 files changed, 0 insertions, 60 deletions
diff --git a/sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c b/sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c
deleted file mode 100644
index 05726f2..0000000
--- a/sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/* logbf(). PowerPC/POWER7 version.
- Copyright (C) 2012-2013 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "math_private.h"
-
-/* This implementation avoids FP to INT conversions by using VSX
- bitwise instructions over FP values. */
-
-static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */
-static const double two10m1 = -1023.0; /* -2**10 + 1 */
-static const double two7m1 = -127.0; /* -2**7 + 1 */
-
-/* FP mask to extract the exponent. */
-static const union {
- unsigned long long mask;
- double d;
-} mask = { 0x7ff0000000000000ULL };
-
-float
-__logbf (float x)
-{
- /* VSX operation are all done internally as double. */
- double ret;
-
- if (__builtin_expect (x == 0.0, 0))
- /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */
- return -1.0 / __builtin_fabsf (x);
-
- /* ret = x & 0x7f800000; */
- asm (
- "xxland %x0,%x1,%x2\n"
- "fcfid %0,%0"
- : "=f"(ret)
- : "f" (x), "f" (mask.d));
- /* ret = (ret >> 52) - 1023.0, since ret is double. */
- ret = (ret * two1div52) + two10m1;
- if (__builtin_expect (ret > -two7m1, 0))
- /* Multiplication is used to set logb (+-INF) = INF. */
- return (x * x);
- /* Since operations are done with double we don't need
- additional tests for subnormal numbers.
- The test is to avoid logb_downward (0.0) == -0.0. */
- return ret == -0.0 ? 0.0 : ret;
-}
-weak_alias (__logbf, logbf)