glibc/soft-fp/sqrttf2.c
Roland McGrath fe0b1e854a * sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.c: Moved to ...
* sysdeps/sparc/dl-procinfo.c: ... here, new file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h: Moved to ...
	* sysdeps/sparc/dl-procinfo.h: ... here, new file.
	(HWCAP_IMPORTANT): Include HWCAP_SPARC_V9 when [__WORDSIZE__ != 64].
	* sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.c: File removed.
	* sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h: File removed.

2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>

	* soft-fp/single.h (SFtype): Define.
	(union _FP_UNION_S): Use it.
	* soft-fp/double.h (DFtype): Define.
	(union _FP_UNION_D): Use it.
	* soft-fp/extended.h (XFtype): Define.
	(union _FP_UNION_E): Use it.
	* soft-fp/quad.h (TFtype): Define.
	(union _FP_UNION_Q): Use it.
	* soft-fp/soft-fp.h: Add _LIBC conditionals.
	(SI_BITS, DI_BITS): Define.
	* soft-fp/op-common.h (_FP_DECL): Add __attribute__((unused)) for
	X##_c.
	(_FP_CMP_EQ): Use parentheses for && inside ||.
	(_FP_TO_INT): Use statement expressions in conditional controlling
	constant shift.
	(_FP_FROM_INT): Likewise.  Take unsigned type as argument.
	* soft-fp/op-2.h (_FP_FRAC_SLL_2, _FP_FRAC_SRL_2, _FP_FRAC_SRST_2,
	_FP_FRAC_SRS_2, _FP_FRAC_ASSEMBLE_2): Use statement expressions in
	conditional controlling possibly constant shift.
	(_FP_FRAC_SRST_2, _FP_FRAC_SRS_2): Avoid left shift by exactly
	_FP_W_TYPE_SIZE.
	(_FP_FRAC_GT_2, _FP_FRAC_GE_2): Use parentheses for && inside ||.
	* soft-fp/op-4.h (_FP_FRAC_SRST_4): Avoid left shift by exactly
	_FP_W_TYPE_SIZE.
	(__FP_FRAC_ADD_3, __FP_FRAC_ADD_4, __FP_FRAC_SUB_3,
	__FP_FRAC_SUB_4): Use _FP_W_TYPE for carry flags.
	* soft-fp/op-8.h (_FP_FRAC_SRS_8): Avoid left shift by exactly
	_FP_W_TYPE_SIZE.
	* soft-fp/floatdidf.c: Pass unsigned type and macro for type size.
	* soft-fp/floatdisf.c: Likewise.
	* soft-fp/floatditf.c: Likewise.
	* soft-fp/floatsidf.c: Likewise.
	* soft-fp/floatsisf.c: Likewise.
	* soft-fp/floatsitf.c: Likewise.
	* soft-fp/floatundidf.c: Likewise.
	* soft-fp/floatundisf.c: Likewise.
	* soft-fp/floatunditf.c: Likewise.
	* soft-fp/floatunsidf.c: Likewise.
	* soft-fp/floatunsisf.c: Likewise.
	* soft-fp/floatunsitf.c: Likewise.
	* soft-fp/fixdfdi.c: Pass macro for type size.
	* soft-fp/fixdfsi.c: Likewise.
	* soft-fp/fixsfdi.c: Likewise.
	* soft-fp/fixsfsi.c: Likewise.
	* soft-fp/fixtfdi.c: Likewise.
	* soft-fp/fixtfsi.c: Likewise.
	* soft-fp/fixunsdfdi.c: Likewise.
	* soft-fp/fixunsdfsi.c: Likewise.
	* soft-fp/fixunssfdi.c: Likewise.
	* soft-fp/fixunssfsi.c: Likewise.
	* soft-fp/fixunstfdi.c: Likewise.
	* soft-fp/fixunstfsi.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtqux.c: Pass unsigned type.
	* sysdeps/alpha/soft-fp/ots_cvtqx.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_itoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_lltoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_ulltoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_utoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_itoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_lltoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_ulltoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_utoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_itoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_uitoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_uxtoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_xtoq.c: Likewise.
	* soft-fp/adddf3.c: Use typedefs for argument and return types.
        * soft-fp/addsf3.c: Likewise.
        * soft-fp/addtf3.c: Likewise.
        * soft-fp/divdf3.c: Likewise.
        * soft-fp/divsf3.c: Likewise.
        * soft-fp/divtf3.c: Likewise.
        * soft-fp/eqdf2.c: Likewise.
        * soft-fp/eqsf2.c: Likewise.
        * soft-fp/eqtf2.c: Likewise.
        * soft-fp/extenddftf2.c: Likewise.
        * soft-fp/extendsfdf2.c: Likewise.
        * soft-fp/extendsftf2.c: Likewise.
        * soft-fp/fixdfdi.c: Likewise.
        * soft-fp/fixdfsi.c: Likewise.
        * soft-fp/fixsfdi.c: Likewise.
        * soft-fp/fixsfsi.c: Likewise.
        * soft-fp/fixtfdi.c: Likewise.
        * soft-fp/fixtfsi.c: Likewise.
        * soft-fp/fixunsdfdi.c: Likewise.
        * soft-fp/fixunsdfsi.c: Likewise.
        * soft-fp/fixunssfdi.c: Likewise.
        * soft-fp/fixunssfsi.c: Likewise.
        * soft-fp/fixunstfdi.c: Likewise.
        * soft-fp/fixunstfsi.c: Likewise.
        * soft-fp/floatdidf.c: Likewise.
        * soft-fp/floatdisf.c: Likewise.
        * soft-fp/floatditf.c: Likewise.
        * soft-fp/floatsidf.c: Likewise.
        * soft-fp/floatsisf.c: Likewise.
        * soft-fp/floatsitf.c: Likewise.
        * soft-fp/floatundidf.c: Likewise.
        * soft-fp/floatundisf.c: Likewise.
        * soft-fp/floatunditf.c: Likewise.
        * soft-fp/floatunsidf.c: Likewise.
        * soft-fp/floatunsisf.c: Likewise.
        * soft-fp/floatunsitf.c: Likewise.
        * soft-fp/gedf2.c: Likewise.
        * soft-fp/gesf2.c: Likewise.
        * soft-fp/getf2.c: Likewise.
        * soft-fp/ledf2.c: Likewise.
        * soft-fp/lesf2.c: Likewise.
        * soft-fp/letf2.c: Likewise.
        * soft-fp/muldf3.c: Likewise.
        * soft-fp/mulsf3.c: Likewise.
        * soft-fp/multf3.c: Likewise.
        * soft-fp/negdf2.c: Likewise.
        * soft-fp/negsf2.c: Likewise.
        * soft-fp/negtf2.c: Likewise.
        * soft-fp/sqrtdf2.c: Likewise.
        * soft-fp/sqrtsf2.c: Likewise.
        * soft-fp/sqrttf2.c: Likewise.
        * soft-fp/subdf3.c: Likewise.
        * soft-fp/subsf3.c: Likewise.
        * soft-fp/subtf3.c: Likewise.
        * soft-fp/truncdfsf2.c: Likewise.
        * soft-fp/trunctfdf2.c: Likewise.
        * soft-fp/trunctfsf2.c: Likewise.
        * soft-fp/unorddf2.c: Likewise.
        * soft-fp/unordsf2.c: Likewise.
        * soft-fp/unordtf2.c: Likewise.

2006-02-09  Joseph S. Myers  <joseph@codesourcery.com>

	* soft-fp/op-common.h (_FP_UNPACK_SEMIRAW): Define.
	(_FP_OVERFLOW_SEMIRAW): Likewise.
	(_FP_CHECK_SIGNAN_SEMIRAW): Likewise.
	(_FP_CHOOSENAN_SEMIRAW): Likewise.
	(_FP_EXP_NORMAL): Likewise.
	(_FP_PACK_SEMIRAW): Likewise.
	(_FP_ADD_INTERNAL): Rewrite to operate on semi-raw value.
	(_FP_SUB): Likewise.
	(_FP_TO_INT): Rewrite to operate on raw values.  Don't set INVALID
	exception for conversions where most negative representable
	integer is correct truncated value, but do set INEXACT for such
	conversions where appropriate.  Don't always left-shift for
	converting to a wider integer.
	(_FP_FROM_INT): Rewrite to yield raw value.  Correct shift for
	integers with one more bits than (mantissa + guard) bits for the
	floating point format.  Don't use __FP_FRAC_SRS_1 for shifting
	integers that may be wider than _FP_W_TYPE_SIZE.
	(FP_CONV): Don't define.
	(FP_EXTEND): Define.
	(FP_TRUNC): Likewise.
	* soft-fp/op-1.h (_FP_FRAC_SRST_1, __FP_FRAC_SRST_1): Define.
	(_FP_FRAC_CONV_1_1): Don't define.
	(_FP_FRAC_COPY_1_1): Define.
	* soft-fp/op-2.h (_FP_FRAC_SRST_2): Define.
	(_FP_FRAC_CONV_1_2, _FP_FRAC_CONV_2_1): Don't define.
	(_FP_FRAC_COPY_1_2, _FP_FRAC_COPY_2_1): Define.
	* soft-fp/op-4.h (_FP_FRAC_SRST_4): Define.
	(_FP_FRAC_SRS_4): Define based on _FP_FRAC_SRST_4.
	(_FP_FRAC_CONV_1_4, _FP_FRAC_CONV_2_4): Don't define.
	(_FP_FRAC_COPY_1_4, _FP_FRAC_COPY_2_4): Define.
	(_FP_FRAC_CONV_4_1, _FP_FRAC_CONV_4_2): Don't define.
	(_FP_FRAC_COPY_4_1, _FP_FRAC_COPY_4_2): Define.
	* soft-fp/single.h (_FP_FRACTBITS_S): Define.
	(_FP_FRACXBITS_S): Define in terms of _FP_FRACXBITS_S.
	(_FP_WFRACXBITS_S): Likewise.
	(_FP_QNANBIT_SH_S, _FP_IMPLBIT_SH_S): Define.
	(FP_UNPACK_SEMIRAW_S, FP_UNPACK_SEMIRAW_SP): Define.
	(FP_PACK_SEMIRAW_S, FP_PACK_SEMIRAW_SP): Define.
	* soft-fp/double.h (_FP_QNANBIT_SH_D, _FP_IMPLBIT_SH_D): Define.
	(FP_UNPACK_SEMIRAW_D, FP_UNPACK_SEMIRAW_D): Define
	(FP_PACK_SEMIRAW_D, FP_PACK_SEMIRAW_DP): Define.
	* soft-fp/extended.h (_FP_QNANBIT_SH_E, _FP_IMPLBIT_SH_E): Define.
	(FP_UNPACK_EP): Correct typo.
	(FP_UNPACK_SEMIRAW_E, FP_UNPACK_SEMIRAW_EP): Define.
	(FP_PACK_SEMIRAW_E, FP_PACK_SEMIRAW_EP): Define.
	* soft-fp/quad.h (_FP_QNANBIT_SH_Q, _FP_IMPLBIT_SH_Q): Define.
	(FP_UNPACK_SEMIRAW_Q, FP_UNPACK_SEMIRAW_QP): Define.
	(FP_PACK_SEMIRAW_Q, FP_PACK_SEMIRAW_QP): Define.
	* soft-fp/fixdfdi.c: Use unsigned type for result of conversion.
	* soft-fp/fixdfsi.c: Likewise.
	* soft-fp/fixsfdi.c: Likewise.
	* soft-fp/fixsfsi.c: Likewise.
	* soft-fp/fixtfdi.c: Likewise.
	* soft-fp/fixtfsi.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtxq.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_nintxq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtoi.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtoll.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtoi.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtoll.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Likewise.
	* soft-fp/adddf3.c: Update for changed soft-fp interfaces.
	* soft-fp/addsf3.c: Likewise.
	* soft-fp/addtf3.c: Likewise.
	* soft-fp/extenddftf2.c: Likewise.
	* soft-fp/extendsfdf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/fixdfdi.c: Likewise.
	* soft-fp/fixdfsi.c: Likewise.
	* soft-fp/fixsfdi.c: Likewise.
	* soft-fp/fixsfsi.c: Likewise.
	* soft-fp/fixtfdi.c: Likewise.
	* soft-fp/fixtfsi.c: Likewise.
	* soft-fp/fixunsdfdi.c: Likewise.
	* soft-fp/fixunsdfsi.c: Likewise.
	* soft-fp/fixunssfdi.c: Likewise.
	* soft-fp/fixunssfsi.c: Likewise.
	* soft-fp/fixunstfdi.c: Likewise.
	* soft-fp/fixunstfsi.c: Likewise.
	* soft-fp/floatdidf.c: Likewise.
	* soft-fp/floatdisf.c: Likewise.
	* soft-fp/floatditf.c: Likewise.
	* soft-fp/floatsidf.c: Likewise.
	* soft-fp/floatsisf.c: Likewise.
	* soft-fp/floatsitf.c: Likewise.
	* soft-fp/floatundidf.c: Likewise.
	* soft-fp/floatundisf.c: Likewise.
	* soft-fp/floatunditf.c: Likewise.
	* soft-fp/floatunsidf.c: Likewise.
	* soft-fp/floatunsisf.c: Likewise.
	* soft-fp/floatunsitf.c: Likewise.
	* soft-fp/subdf3.c: Likewise.
	* soft-fp/subsf3.c: Likewise.
	* soft-fp/subtf3.c: Likewise.
	* soft-fp/truncdfsf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_add.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtqux.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtqx.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvttx.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtxq.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_cvtxt.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_nintxq.c: Likewise.
	* sysdeps/alpha/soft-fp/ots_sub.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_add.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_dtoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_itoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_lltoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtod.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtoi.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtoll.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtos.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtou.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_qtoull.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_stoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_sub.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_ulltoq.c: Likewise.
	* sysdeps/powerpc/soft-fp/q_utoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_add.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_dtoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_itoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_lltoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtod.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtoi.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtoll.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtos.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtou.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_qtoull.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_stoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_sub.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_ulltoq.c: Likewise.
	* sysdeps/sparc/sparc32/soft-fp/q_utoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_add.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_dtoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_itoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtod.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtos.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoui.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoux.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_stoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_sub.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_uitoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_uxtoq.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/qp_xtoq.c: Likewise.
2006-02-25 01:29:59 +00:00

40 lines
1.2 KiB
C

/* Software floating-point emulation.
Return sqrt(a)
Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@cygnus.com) and
Jakub Jelinek (jj@ultra.linux.cz).
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "soft-fp.h"
#include "quad.h"
TFtype __sqrttf2(TFtype a)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(R);
TFtype r;
FP_INIT_ROUNDMODE;
FP_UNPACK_Q(A, a);
FP_SQRT_Q(R, A);
FP_PACK_Q(r, R);
FP_HANDLE_EXCEPTIONS;
return r;
}