diff gcc/config/pa/quadlib.c @ 0:a06113de4d67 gcc-4.4.0

first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children f6334be47118
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/pa/quadlib.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,228 @@
+/* Subroutines for long double support.
+   Copyright (C) 2000, 2002, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+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 3, or (at your option)
+any later version.
+
+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.
+
+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_Qfeq (long double, long double);
+int _U_Qfne (long double, long double);
+int _U_Qfgt (long double, 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, QCMP_EQ) != 0);
+}
+
+int
+_U_Qfne (long double a, long double b)
+{
+  return (_U_Qfcmp (a, b, QCMP_EQ) == 0);
+}
+	
+int
+_U_Qfgt (long double a, long double b)
+{
+  return (_U_Qfcmp (a, b, QCMP_INV | QCMP_GT) != 0);
+}
+
+int
+_U_Qfge (long double a, long double b)
+{
+  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, QCMP_INV | QCMP_LT) != 0);
+}
+
+int
+_U_Qfle (long double a, long double b)
+{
+  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, QCMP_EQ) == 0)
+    return 0;
+
+  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)
+{
+  union
+   {
+     long double ld;
+     int i[4];
+   } u;
+
+  u.ld = a;
+  u.i[0] ^= 0x80000000;
+  return u.ld;
+}
+
+#ifdef __LP64__
+/* This routine is only necessary for the PA64 port; for reasons unknown
+   _U_Qfcnvfxt_quad_to_sgl returns the integer in the high 32bits of the
+   return value.  Ugh.  */
+int
+__U_Qfcnvfxt_quad_to_sgl (long double a)
+{
+  return _U_Qfcnvfxt_quad_to_sgl (a) >> 32;
+}
+#endif
+
+/* 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)
+{
+  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);
+}