/* Subroutines for long double support.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2002, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
-GNU CC is distributed in the hope that it will be useful,
+GCC 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 General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+/* HPUX TFmode compare requires a library call to _U_Qfcmp. It takes
+ a magic number as its third argument which indicates what to do.
+ The return value is an integer to be compared against zero. The
+ comparison conditions are the same as those listed in Table 8-12
+ of the PA-RISC 2.0 Architecture book for the fcmp instruction. */
+
+/* Raise FP_INVALID on SNaN as a side effect. */
+#define QCMP_INV 1
+
+/* Comparison relations. */
+#define QCMP_UNORD 2
+#define QCMP_EQ 4
+#define QCMP_LT 8
+#define QCMP_GT 16
int _U_Qfcmp (long double a, long double b, int);
long _U_Qfcnvfxt_quad_to_sgl (long double);
int _U_Qfge (long double, long double);
int _U_Qflt (long double, long double);
int _U_Qfle (long double, long double);
+int _U_Qfltgt (long double, long double);
+int _U_Qfunle (long double, long double);
+int _U_Qfunlt (long double, long double);
+int _U_Qfunge (long double, long double);
+int _U_Qfungt (long double, long double);
+int _U_Qfuneq (long double, long double);
+int _U_Qfunord (long double, long double);
+int _U_Qford (long double, long double);
+
int _U_Qfcomp (long double, long double);
+
long double _U_Qfneg (long double);
+
#ifdef __LP64__
int __U_Qfcnvfxt_quad_to_sgl (long double);
#endif
unsigned int _U_Qfcnvfxt_quad_to_usgl(long double);
+long double _U_Qfcnvxf_usgl_to_quad (unsigned int);
+unsigned long long _U_Qfcnvfxt_quad_to_udbl(long double);
+long double _U_Qfcnvxf_udbl_to_quad (unsigned long long);
int
_U_Qfeq (long double a, long double b)
{
- return (_U_Qfcmp (a, b, 4) != 0);
+ return (_U_Qfcmp (a, b, QCMP_EQ) != 0);
}
int
_U_Qfne (long double a, long double b)
{
- return (_U_Qfcmp (a, b, 4) == 0);
+ return (_U_Qfcmp (a, b, QCMP_EQ) == 0);
}
int
_U_Qfgt (long double a, long double b)
{
- return (_U_Qfcmp (a, b, 17) != 0);
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_GT) != 0);
}
int
_U_Qfge (long double a, long double b)
{
- return (_U_Qfcmp (a, b, 21) != 0);
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_GT) != 0);
}
int
_U_Qflt (long double a, long double b)
{
- return (_U_Qfcmp (a, b, 9) != 0);
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT) != 0);
}
int
_U_Qfle (long double a, long double b)
{
- return (_U_Qfcmp (a, b, 13) != 0);
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT) != 0);
+}
+
+int
+_U_Qfltgt (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT | QCMP_GT) != 0);
+}
+
+int
+_U_Qfunle (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_LT) != 0);
+}
+
+int
+_U_Qfunlt (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_LT) != 0);
+}
+
+int
+_U_Qfunge (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0);
+}
+
+int
+_U_Qfungt (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_GT) != 0);
+}
+
+int
+_U_Qfuneq (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ) != 0);
+}
+
+int
+_U_Qfunord (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD) != 0);
+}
+
+int
+_U_Qford (long double a, long double b)
+{
+ return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT | QCMP_GT) != 0);
}
int
_U_Qfcomp (long double a, long double b)
{
- if (_U_Qfcmp (a, b, 4) == 0)
+ if (_U_Qfcmp (a, b, QCMP_EQ) == 0)
return 0;
- return (_U_Qfcmp (a, b, 22) != 0 ? 1 : -1);
+ return (_U_Qfcmp (a, b, QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0 ? 1 : -1);
}
+/* Negate long double A. */
long double
_U_Qfneg (long double a)
{
- return (0.0L - a);
+ union
+ {
+ long double ld;
+ int i[4];
+ } u;
+
+ u.ld = a;
+ u.i[0] ^= 0x80000000;
+ return u.ld;
}
#ifdef __LP64__
}
#endif
-/* HP only has signed conversion in library, so need to synthesize an
- unsigned version */
+/* HP only has signed conversion in the C library, so need to synthesize
+ unsigned versions. */
unsigned int
-_U_Qfcnvfxt_quad_to_usgl(long double a)
+_U_Qfcnvfxt_quad_to_usgl (long double a)
{
extern long long _U_Qfcnvfxt_quad_to_dbl (long double a);
return (unsigned int) _U_Qfcnvfxt_quad_to_dbl (a);
}
+
+long double
+_U_Qfcnvxf_usgl_to_quad (unsigned int a)
+{
+ extern long double _U_Qfcnvxf_dbl_to_quad (long long);
+ return _U_Qfcnvxf_dbl_to_quad ((long long) a);
+}
+
+typedef union {
+ unsigned long long u[2];
+ long double d[1];
+} quad_type;
+
+unsigned long long
+_U_Qfcnvfxt_quad_to_udbl (long double a)
+{
+ extern quad_type _U_Qfcnvfxt_quad_to_quad (long double a);
+ quad_type u;
+ u = _U_Qfcnvfxt_quad_to_quad(a);
+ return u.u[1];
+}
+
+long double
+_U_Qfcnvxf_udbl_to_quad (unsigned long long a)
+{
+ extern long double _U_Qfcnvxf_quad_to_quad (quad_type a);
+ quad_type u;
+ u.u[0] = 0;
+ u.u[1] = a;
+ return _U_Qfcnvxf_quad_to_quad (u);
+}
projects / msp430-gcc.git / blobdiff