6ff68ac318
2006-02-28 Richard Guenther <rguenther@suse.de> PR bootstrap/26055 Revert * configure.ac: Disable libgcc-math if we cannot mix declaration of __isinf and math.h inclusion. * configure: Re-generate. * i386/Makefile.am: Use -std=c99, do not use -ffinite-math-only, do not define __NO_MATH_INLINES. * i386/Makefile.in: Re-generate. * include/math_private.h (__atanf): Declare. (__scalbnf): Likewise. (__floorf): Likewise. (__isinff): Likewise. (__scalbn): Likewise. (__floor): Likewise. (fabs): Likewise. (fabsf): Likewise. * flt-32/e_acosf.c: Do not include math.h * flt-32/s_isinff.c: Likewise. * flt-32/k_tanf.c: Likewise. * flt-32/e_sqrtf.c: Likewise. * flt-32/e_asinf.c: Likewise. * flt-32/k_cosf.c: Likewise. * flt-32/k_sinf.c: Likewise. * flt-32/s_floorf.c: Likewise. * flt-32/s_tanf.c: Likewise. * flt-32/s_atanf.c: Likewise. * flt-32/s_cosf.c: Likewise. * flt-32/e_atan2f.c: Likewise. * flt-32/e_powf.c: Likewise. * flt-32/s_sinf.c: Likewise. * flt-32/e_rem_pio2f.c: Likewise. * flt-32/s_scalbnf.c: Likewise. * flt-32/e_logf.c: Likewise. * flt-32/e_log10f.c: Likewise. * flt-32/k_rem_pio2f.c: Likewise. * flt-32/e_expf.c: Likewise. Use __builtin_isless and __builtin_isgreater. * dbl-64/s_floor.c: Do not include math.h. * dbl-64/e_log10.c: Likewise. * dbl-64/k_rem_pio2.c: Likewise. * dbl-64/s_atan.c: Likewise. * dbl-64/s_scalbn.c: Likewise. * dbl-64/s_isinf.c: Likewise. * dbl-64/s_tan.c: Likewise. * dbl-64/e_rem_pio2.c: Likewise. Avoid uninitialized variable warning. * dbl-64/mpa.c: Likewise. From-SVN: r111563
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* k_sinf.c -- float version of k_sin.c
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* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: k_sinf.c,v 1.4 1995/05/10 20:46:33 jtc Exp $";
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#endif
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#include "math_private.h"
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#ifdef __STDC__
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static const float
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#else
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static float
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#endif
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half = 5.0000000000e-01,/* 0x3f000000 */
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S1 = -1.6666667163e-01, /* 0xbe2aaaab */
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S2 = 8.3333337680e-03, /* 0x3c088889 */
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S3 = -1.9841270114e-04, /* 0xb9500d01 */
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S4 = 2.7557314297e-06, /* 0x3638ef1b */
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S5 = -2.5050759689e-08, /* 0xb2d72f34 */
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S6 = 1.5896910177e-10; /* 0x2f2ec9d3 */
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#ifdef __STDC__
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float __kernel_sinf(float x, float y, int iy)
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#else
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float __kernel_sinf(x, y, iy)
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float x,y; int iy; /* iy=0 if y is zero */
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#endif
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{
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float z,r,v;
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int32_t ix;
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GET_FLOAT_WORD(ix,x);
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ix &= 0x7fffffff; /* high word of x */
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if(ix<0x32000000) /* |x| < 2**-27 */
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{if((int)x==0) return x;} /* generate inexact */
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z = x*x;
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v = z*x;
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r = S2+z*(S3+z*(S4+z*(S5+z*S6)));
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if(iy==0) return x+v*(S1+z*r);
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else return x-((z*(half*y-v*r)-y)-v*S1);
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}
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