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-rw-r--r--libm/src/e_rem_pio2f.c98
1 files changed, 0 insertions, 98 deletions
diff --git a/libm/src/e_rem_pio2f.c b/libm/src/e_rem_pio2f.c
deleted file mode 100644
index 5231cd4..0000000
--- a/libm/src/e_rem_pio2f.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/* e_rem_pio2f.c -- float version of e_rem_pio2.c
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Debugged and 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.
- * ====================================================
- */
-
-#ifndef lint
-static char rcsid[] = "$FreeBSD: src/lib/msun/src/e_rem_pio2f.c,v 1.19 2005/11/23 03:03:09 bde Exp $";
-#endif
-
-/* __ieee754_rem_pio2f(x,y)
- *
- * return the remainder of x rem pi/2 in y[0]+y[1]
- * use double precision internally
- * use __kernel_rem_pio2() for large x
- */
-
-#include "math.h"
-#include "math_private.h"
-
-/*
- * Table of constants for 2/pi, 396 Hex digits (476 decimal) of 2/pi
- */
-static const int32_t two_over_pi[] = {
-0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62,
-0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A,
-0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129,
-0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41,
-0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8,
-0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF,
-0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5,
-0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08,
-0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3,
-0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880,
-0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B,
-};
-
-/*
- * invpio2: 53 bits of 2/pi
- * pio2_1: first 33 bit of pi/2
- * pio2_1t: pi/2 - pio2_1
- */
-
-static const double
-zero = 0.00000000000000000000e+00, /* 0x00000000, 0x00000000 */
-half = 5.00000000000000000000e-01, /* 0x3FE00000, 0x00000000 */
-two24 = 1.67772160000000000000e+07, /* 0x41700000, 0x00000000 */
-invpio2 = 6.36619772367581382433e-01, /* 0x3FE45F30, 0x6DC9C883 */
-pio2_1 = 1.57079632673412561417e+00, /* 0x3FF921FB, 0x54400000 */
-pio2_1t = 6.07710050650619224932e-11; /* 0x3DD0B461, 0x1A626331 */
-
- int32_t __ieee754_rem_pio2f(float x, float *y)
-{
- double w,t,r,fn;
- double tx[1],ty[2];
- float z;
- int32_t e0,n,ix,hx;
-
- GET_FLOAT_WORD(hx,x);
- ix = hx&0x7fffffff;
- /* 33+53 bit pi is good enough for medium size */
- if(ix<=0x49490f80) { /* |x| ~<= 2^19*(pi/2), medium size */
- t = fabsf(x);
- n = (int32_t) (t*invpio2+half);
- fn = (double)n;
- r = t-fn*pio2_1;
- w = fn*pio2_1t;
- y[0] = r-w;
- y[1] = (r-y[0])-w;
- if(hx<0) {y[0] = -y[0]; y[1] = -y[1]; return -n;}
- else return n;
- }
- /*
- * all other (large) arguments
- */
- if(ix>=0x7f800000) { /* x is inf or NaN */
- y[0]=y[1]=x-x; return 0;
- }
- /* set z = scalbn(|x|,ilogb(|x|)-23) */
- e0 = (ix>>23)-150; /* e0 = ilogb(|x|)-23; */
- SET_FLOAT_WORD(z, ix - ((int32_t)(e0<<23)));
- tx[0] = z;
- n = __kernel_rem_pio2(tx,ty,e0,1,1,two_over_pi);
- y[0] = ty[0];
- y[1] = ty[0] - y[0];
- if(hx<0) {y[0] = -y[0]; y[1] = -y[1]; return -n;}
- return n;
-}