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2f49ce7d62
This patch makes flt-32 libm functions use libm_alias_float to define public interfaces (in cases where _Float32 aliases of those interfaces would be appropriate, so not for finitef / isinff / isnanf). Tested for x86_64. Also tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch. * sysdeps/ieee754/flt-32/s_asinhf.c: Include <libm-alias-float.h>. (asinhf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_atanf.c: Include <libm-alias-float.h>. (atanf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_cbrtf.c: Include <libm-alias-float.h>. (cbrtf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_ceilf.c: Include <libm-alias-float.h>. (ceilf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_copysignf.c: Include <libm-alias-float.h>. (copysignf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_cosf.c: Include <libm-alias-float.h>. (cosf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_erff.c: Include <libm-alias-float.h>. (erff): Define using libm_alias_float. (erfcf): Likewise. * sysdeps/ieee754/flt-32/s_expm1f.c: Include <libm-alias-float.h>. (expm1f): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_fabsf.c: Include <libm-alias-float.h>. (fabsf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_floorf.c: Include <libm-alias-float.h>. (floorf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_frexpf.c: Include <libm-alias-float.h>. (frexpf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_fromfpf.c (fromfpf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_fromfpf_main.c: Include <libm-alias-float.h>. * sysdeps/ieee754/flt-32/s_fromfpxf.c (fromfpxf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_getpayloadf.c: Include <libm-alias-float.h>. (getpayloadf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_llrintf.c: Include <libm-alias-float.h>. (llrintf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_llroundf.c: Include <libm-alias-float.h>. (llroundf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_logbf.c: Include <libm-alias-float.h>. (logbf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_lrintf.c: Include <libm-alias-float.h>. (lrintf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_lroundf.c: Include <libm-alias-float.h>. (lroundf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_modff.c: Include <libm-alias-float.h>. (modff): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_nearbyintf.c: Include <libm-alias-float.h>. (nearbyintf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_nextafterf.c: Include <libm-alias-float.h>. (nextafterf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_nextupf.c: Include <libm-alias-float.h>. (nextupf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_remquof.c: Include <libm-alias-float.h>. (remquof): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_rintf.c: Include <libm-alias-float.h>. (rintf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_roundevenf.c: Include <libm-alias-float.h>. (roundevenf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_roundf.c: Include <libm-alias-float.h>. (roundf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_setpayloadf.c (setpayloadf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_setpayloadf_main.c: Include <libm-alias-float.h>. * sysdeps/ieee754/flt-32/s_setpayloadsigf.c (setpayloadsigf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_sincosf.c: Include <libm-alias-float.h>. (sincosf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_sinf.c: Include <libm-alias-float.h>. (sinf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_tanf.c: Include <libm-alias-float.h>. (tanf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_tanhf.c: Include <libm-alias-float.h>. (tanhf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_totalorderf.c: Include <libm-alias-float.h>. (totalorderf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_totalordermagf.c: Include <libm-alias-float.h>. (totalordermagf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_truncf.c: Include <libm-alias-float.h>. (truncf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_ufromfpf.c (ufromfpf): Define using libm_alias_float. * sysdeps/ieee754/flt-32/s_ufromfpxf.c (ufromfpxf): Define using libm_alias_float.
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/* Round float value to long int.
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Copyright (C) 1997-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <fenv.h>
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#include <limits.h>
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#include <math.h>
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#include <math_private.h>
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#include <libm-alias-float.h>
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#include <fix-fp-int-convert-overflow.h>
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long int
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__lroundf (float x)
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{
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int32_t j0;
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uint32_t i;
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long int result;
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int sign;
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GET_FLOAT_WORD (i, x);
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j0 = ((i >> 23) & 0xff) - 0x7f;
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sign = (i & 0x80000000) != 0 ? -1 : 1;
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i &= 0x7fffff;
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i |= 0x800000;
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if (j0 < (int32_t) (8 * sizeof (long int)) - 1)
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{
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if (j0 < 0)
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return j0 < -1 ? 0 : sign;
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else if (j0 >= 23)
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result = (long int) i << (j0 - 23);
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else
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{
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i += 0x400000 >> j0;
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result = i >> (23 - j0);
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}
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}
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else
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{
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#ifdef FE_INVALID
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/* The number is too large. Unless it rounds to LONG_MIN,
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FE_INVALID must be raised and the return value is
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unspecified. */
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if (FIX_FLT_LONG_CONVERT_OVERFLOW && x != (float) LONG_MIN)
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{
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feraiseexcept (FE_INVALID);
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return sign == 1 ? LONG_MAX : LONG_MIN;
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}
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#endif
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return (long int) x;
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}
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return sign * result;
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}
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libm_alias_float (__lround, lround)
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