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-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/sinf.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/sinf.c b/lib/mlibc/options/ansi/musl-generic-math/sinf.c
deleted file mode 100644
index 64e39f5..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/sinf.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/s_sinf.c */
-/*
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Optimized by Bruce D. Evans.
- */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include "libm.h"
-
-/* Small multiples of pi/2 rounded to double precision. */
-static const double
-s1pio2 = 1*M_PI_2, /* 0x3FF921FB, 0x54442D18 */
-s2pio2 = 2*M_PI_2, /* 0x400921FB, 0x54442D18 */
-s3pio2 = 3*M_PI_2, /* 0x4012D97C, 0x7F3321D2 */
-s4pio2 = 4*M_PI_2; /* 0x401921FB, 0x54442D18 */
-
-float sinf(float x)
-{
- double y;
- uint32_t ix;
- int n, sign;
-
- GET_FLOAT_WORD(ix, x);
- sign = ix >> 31;
- ix &= 0x7fffffff;
-
- if (ix <= 0x3f490fda) { /* |x| ~<= pi/4 */
- if (ix < 0x39800000) { /* |x| < 2**-12 */
- /* raise inexact if x!=0 and underflow if subnormal */
- FORCE_EVAL(ix < 0x00800000 ? x/0x1p120f : x+0x1p120f);
- return x;
- }
- return __sindf(x);
- }
- if (ix <= 0x407b53d1) { /* |x| ~<= 5*pi/4 */
- if (ix <= 0x4016cbe3) { /* |x| ~<= 3pi/4 */
- if (sign)
- return -__cosdf(x + s1pio2);
- else
- return __cosdf(x - s1pio2);
- }
- return __sindf(sign ? -(x + s2pio2) : -(x - s2pio2));
- }
- if (ix <= 0x40e231d5) { /* |x| ~<= 9*pi/4 */
- if (ix <= 0x40afeddf) { /* |x| ~<= 7*pi/4 */
- if (sign)
- return __cosdf(x + s3pio2);
- else
- return -__cosdf(x - s3pio2);
- }
- return __sindf(sign ? x + s4pio2 : x - s4pio2);
- }
-
- /* sin(Inf or NaN) is NaN */
- if (ix >= 0x7f800000)
- return x - x;
-
- /* general argument reduction needed */
- n = __rem_pio2f(x, &y);
- switch (n&3) {
- case 0: return __sindf(y);
- case 1: return __cosdf(y);
- case 2: return __sindf(-y);
- default:
- return -__cosdf(y);
- }
-}