/* Subroutines for long double support.
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/* Subroutines for long double support.
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Copyright (C) 2000, 2002, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
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Copyright (C) 2000, 2002, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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GCC is distributed in the hope that it will be useful,
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GCC 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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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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/* HPUX TFmode compare requires a library call to _U_Qfcmp. It takes
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/* HPUX TFmode compare requires a library call to _U_Qfcmp. It takes
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a magic number as its third argument which indicates what to do.
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a magic number as its third argument which indicates what to do.
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The return value is an integer to be compared against zero. The
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The return value is an integer to be compared against zero. The
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comparison conditions are the same as those listed in Table 8-12
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comparison conditions are the same as those listed in Table 8-12
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of the PA-RISC 2.0 Architecture book for the fcmp instruction. */
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of the PA-RISC 2.0 Architecture book for the fcmp instruction. */
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/* Raise FP_INVALID on SNaN as a side effect. */
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/* Raise FP_INVALID on SNaN as a side effect. */
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#define QCMP_INV 1
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#define QCMP_INV 1
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/* Comparison relations. */
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/* Comparison relations. */
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#define QCMP_UNORD 2
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#define QCMP_UNORD 2
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#define QCMP_EQ 4
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#define QCMP_EQ 4
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#define QCMP_LT 8
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#define QCMP_LT 8
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#define QCMP_GT 16
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#define QCMP_GT 16
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int _U_Qfcmp (long double a, long double b, int);
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int _U_Qfcmp (long double a, long double b, int);
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long _U_Qfcnvfxt_quad_to_sgl (long double);
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long _U_Qfcnvfxt_quad_to_sgl (long double);
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int _U_Qfeq (long double, long double);
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int _U_Qfeq (long double, long double);
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int _U_Qfne (long double, long double);
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int _U_Qfne (long double, long double);
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int _U_Qfgt (long double, long double);
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int _U_Qfgt (long double, long double);
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int _U_Qfge (long double, long double);
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int _U_Qfge (long double, long double);
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int _U_Qflt (long double, long double);
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int _U_Qflt (long double, long double);
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int _U_Qfle (long double, long double);
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int _U_Qfle (long double, long double);
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int _U_Qfltgt (long double, long double);
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int _U_Qfltgt (long double, long double);
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int _U_Qfunle (long double, long double);
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int _U_Qfunle (long double, long double);
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int _U_Qfunlt (long double, long double);
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int _U_Qfunlt (long double, long double);
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int _U_Qfunge (long double, long double);
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int _U_Qfunge (long double, long double);
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int _U_Qfungt (long double, long double);
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int _U_Qfungt (long double, long double);
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int _U_Qfuneq (long double, long double);
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int _U_Qfuneq (long double, long double);
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int _U_Qfunord (long double, long double);
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int _U_Qfunord (long double, long double);
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int _U_Qford (long double, long double);
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int _U_Qford (long double, long double);
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int _U_Qfcomp (long double, long double);
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int _U_Qfcomp (long double, long double);
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long double _U_Qfneg (long double);
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long double _U_Qfneg (long double);
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#ifdef __LP64__
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#ifdef __LP64__
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int __U_Qfcnvfxt_quad_to_sgl (long double);
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int __U_Qfcnvfxt_quad_to_sgl (long double);
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#endif
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#endif
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unsigned int _U_Qfcnvfxt_quad_to_usgl(long double);
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unsigned int _U_Qfcnvfxt_quad_to_usgl(long double);
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long double _U_Qfcnvxf_usgl_to_quad (unsigned int);
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long double _U_Qfcnvxf_usgl_to_quad (unsigned int);
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unsigned long long _U_Qfcnvfxt_quad_to_udbl(long double);
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unsigned long long _U_Qfcnvfxt_quad_to_udbl(long double);
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long double _U_Qfcnvxf_udbl_to_quad (unsigned long long);
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long double _U_Qfcnvxf_udbl_to_quad (unsigned long long);
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int
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int
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_U_Qfeq (long double a, long double b)
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_U_Qfeq (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_EQ) != 0);
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return (_U_Qfcmp (a, b, QCMP_EQ) != 0);
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}
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}
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int
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int
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_U_Qfne (long double a, long double b)
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_U_Qfne (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_EQ) == 0);
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return (_U_Qfcmp (a, b, QCMP_EQ) == 0);
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}
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}
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int
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int
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_U_Qfgt (long double a, long double b)
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_U_Qfgt (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_GT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_GT) != 0);
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}
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}
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int
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int
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_U_Qfge (long double a, long double b)
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_U_Qfge (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_GT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_GT) != 0);
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}
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}
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int
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int
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_U_Qflt (long double a, long double b)
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_U_Qflt (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT) != 0);
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}
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}
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int
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int
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_U_Qfle (long double a, long double b)
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_U_Qfle (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT) != 0);
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}
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}
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int
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int
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_U_Qfltgt (long double a, long double b)
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_U_Qfltgt (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT | QCMP_GT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT | QCMP_GT) != 0);
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}
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}
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int
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int
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_U_Qfunle (long double a, long double b)
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_U_Qfunle (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_LT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_LT) != 0);
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}
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}
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int
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int
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_U_Qfunlt (long double a, long double b)
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_U_Qfunlt (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_LT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_LT) != 0);
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}
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}
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int
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int
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_U_Qfunge (long double a, long double b)
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_U_Qfunge (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0);
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}
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}
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int
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int
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_U_Qfungt (long double a, long double b)
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_U_Qfungt (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_GT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_GT) != 0);
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}
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}
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int
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int
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_U_Qfuneq (long double a, long double b)
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_U_Qfuneq (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ) != 0);
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}
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}
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int
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int
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_U_Qfunord (long double a, long double b)
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_U_Qfunord (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD) != 0);
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}
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}
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int
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int
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_U_Qford (long double a, long double b)
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_U_Qford (long double a, long double b)
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{
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{
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT | QCMP_GT) != 0);
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return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT | QCMP_GT) != 0);
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}
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}
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int
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int
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_U_Qfcomp (long double a, long double b)
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_U_Qfcomp (long double a, long double b)
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{
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{
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if (_U_Qfcmp (a, b, QCMP_EQ) == 0)
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if (_U_Qfcmp (a, b, QCMP_EQ) == 0)
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return 0;
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return 0;
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return (_U_Qfcmp (a, b, QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0 ? 1 : -1);
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return (_U_Qfcmp (a, b, QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0 ? 1 : -1);
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}
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}
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/* Negate long double A. */
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/* Negate long double A. */
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long double
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long double
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_U_Qfneg (long double a)
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_U_Qfneg (long double a)
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{
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{
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union
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union
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{
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{
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long double ld;
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long double ld;
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int i[4];
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int i[4];
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} u;
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} u;
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u.ld = a;
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u.ld = a;
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u.i[0] ^= 0x80000000;
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u.i[0] ^= 0x80000000;
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return u.ld;
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return u.ld;
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}
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}
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#ifdef __LP64__
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#ifdef __LP64__
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/* This routine is only necessary for the PA64 port; for reasons unknown
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/* This routine is only necessary for the PA64 port; for reasons unknown
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_U_Qfcnvfxt_quad_to_sgl returns the integer in the high 32bits of the
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_U_Qfcnvfxt_quad_to_sgl returns the integer in the high 32bits of the
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return value. Ugh. */
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return value. Ugh. */
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int
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int
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__U_Qfcnvfxt_quad_to_sgl (long double a)
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__U_Qfcnvfxt_quad_to_sgl (long double a)
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{
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{
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return _U_Qfcnvfxt_quad_to_sgl (a) >> 32;
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return _U_Qfcnvfxt_quad_to_sgl (a) >> 32;
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}
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}
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#endif
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#endif
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/* HP only has signed conversion in the C library, so need to synthesize
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/* HP only has signed conversion in the C library, so need to synthesize
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unsigned versions. */
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unsigned versions. */
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unsigned int
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unsigned int
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_U_Qfcnvfxt_quad_to_usgl (long double a)
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_U_Qfcnvfxt_quad_to_usgl (long double a)
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{
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{
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extern long long _U_Qfcnvfxt_quad_to_dbl (long double a);
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extern long long _U_Qfcnvfxt_quad_to_dbl (long double a);
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return (unsigned int) _U_Qfcnvfxt_quad_to_dbl (a);
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return (unsigned int) _U_Qfcnvfxt_quad_to_dbl (a);
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}
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}
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long double
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long double
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_U_Qfcnvxf_usgl_to_quad (unsigned int a)
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_U_Qfcnvxf_usgl_to_quad (unsigned int a)
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{
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{
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extern long double _U_Qfcnvxf_dbl_to_quad (long long);
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extern long double _U_Qfcnvxf_dbl_to_quad (long long);
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return _U_Qfcnvxf_dbl_to_quad ((long long) a);
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return _U_Qfcnvxf_dbl_to_quad ((long long) a);
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}
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}
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typedef union {
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typedef union {
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unsigned long long u[2];
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unsigned long long u[2];
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long double d[1];
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long double d[1];
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} quad_type;
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} quad_type;
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unsigned long long
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unsigned long long
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_U_Qfcnvfxt_quad_to_udbl (long double a)
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_U_Qfcnvfxt_quad_to_udbl (long double a)
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{
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{
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extern quad_type _U_Qfcnvfxt_quad_to_quad (long double a);
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extern quad_type _U_Qfcnvfxt_quad_to_quad (long double a);
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quad_type u;
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quad_type u;
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u = _U_Qfcnvfxt_quad_to_quad(a);
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u = _U_Qfcnvfxt_quad_to_quad(a);
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return u.u[1];
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return u.u[1];
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}
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}
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long double
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long double
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_U_Qfcnvxf_udbl_to_quad (unsigned long long a)
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_U_Qfcnvxf_udbl_to_quad (unsigned long long a)
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{
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{
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extern long double _U_Qfcnvxf_quad_to_quad (quad_type a);
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extern long double _U_Qfcnvxf_quad_to_quad (quad_type a);
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quad_type u;
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quad_type u;
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u.u[0] = 0;
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u.u[0] = 0;
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u.u[1] = a;
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u.u[1] = a;
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return _U_Qfcnvxf_quad_to_quad (u);
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return _U_Qfcnvxf_quad_to_quad (u);
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}
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}
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