Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.

These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.

1 files changed, 419 insertions, 0 deletions

diff --git a/contrib/gcc/config/fp-bit.h b/contrib/gcc/config/fp-bit.h
new file mode 100644
index 0000000..ab1817a
--- /dev/null
+++ b/contrib/gcc/config/fp-bit.h
@@ -0,0 +1,419 @@
+/* Header file for fp-bit.c.  */
+/* Copyright (C) 2000
+   Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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)
+any later version.
+
+GNU CC 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.  */
+
+/* As a special exception, if you link this library with other files,
+   some of which are compiled with GCC, to produce an executable,
+   this library does not by itself cause the resulting executable
+   to be covered by the GNU General Public License.
+   This exception does not however invalidate any other reasons why
+   the executable file might be covered by the GNU General Public License.  */
+
+#ifndef GCC_FP_BIT_H
+#define GCC_FP_BIT_H
+
+/* Defining FINE_GRAINED_LIBRARIES allows one to select which routines
+   from this file are compiled via additional -D options.
+
+   This avoids the need to pull in the entire fp emulation library
+   when only a small number of functions are needed.
+
+   If FINE_GRAINED_LIBRARIES is not defined, then compile every 
+   suitable routine.  */
+#ifndef FINE_GRAINED_LIBRARIES
+#define L_pack_df
+#define L_unpack_df
+#define L_pack_sf
+#define L_unpack_sf
+#define L_addsub_sf
+#define L_addsub_df
+#define L_mul_sf
+#define L_mul_df
+#define L_div_sf
+#define L_div_df
+#define L_fpcmp_parts_sf
+#define L_fpcmp_parts_df
+#define L_compare_sf
+#define L_compare_df
+#define L_eq_sf
+#define L_eq_df
+#define L_ne_sf
+#define L_ne_df
+#define L_gt_sf
+#define L_gt_df
+#define L_ge_sf
+#define L_ge_df
+#define L_lt_sf
+#define L_lt_df
+#define L_le_sf
+#define L_le_df
+#define L_unord_sf
+#define L_unord_df
+#define L_usi_to_sf
+#define L_usi_to_df
+#define L_si_to_sf
+#define L_si_to_df
+#define L_sf_to_si
+#define L_df_to_si
+#define L_f_to_usi
+#define L_df_to_usi
+#define L_negate_sf
+#define L_negate_df
+#define L_make_sf
+#define L_make_df
+#define L_sf_to_df
+#define L_df_to_sf
+#ifdef FLOAT
+#define L_thenan_sf
+#else
+#define L_thenan_df
+#endif
+#endif /* ! FINE_GRAINED_LIBRARIES */
+
+typedef float SFtype __attribute__ ((mode (SF)));
+typedef float DFtype __attribute__ ((mode (DF)));
+
+typedef int HItype __attribute__ ((mode (HI)));
+typedef int SItype __attribute__ ((mode (SI)));
+typedef int DItype __attribute__ ((mode (DI)));
+
+/* The type of the result of a fp compare */
+#ifndef CMPtype
+#define CMPtype SItype
+#endif
+
+typedef unsigned int UHItype __attribute__ ((mode (HI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef unsigned int UDItype __attribute__ ((mode (DI)));
+
+#define MAX_USI_INT  (~(USItype)0)
+#define MAX_SI_INT   ((SItype) (MAX_USI_INT >> 1))
+#define BITS_PER_SI  (4 * BITS_PER_UNIT)
+
+#ifdef FLOAT_ONLY
+#define NO_DI_MODE
+#endif
+
+#ifdef FLOAT
+#	define NGARDS    7L
+#	define GARDROUND 0x3f
+#	define GARDMASK  0x7f
+#	define GARDMSB   0x40
+#	define EXPBITS 8
+#	define EXPBIAS 127
+#	define FRACBITS 23
+#	define EXPMAX (0xff)
+#	define QUIET_NAN 0x100000L
+#	define FRAC_NBITS 32
+#	define FRACHIGH  0x80000000L
+#	define FRACHIGH2 0xc0000000L
+#	define pack_d __pack_f
+#	define unpack_d __unpack_f
+#	define __fpcmp_parts __fpcmp_parts_f
+	typedef USItype fractype;
+	typedef UHItype halffractype;
+	typedef SFtype FLO_type;
+	typedef SItype intfrac;
+
+#else
+#	define PREFIXFPDP dp
+#	define PREFIXSFDF df
+#	define NGARDS 8L
+#	define GARDROUND 0x7f
+#	define GARDMASK  0xff
+#	define GARDMSB   0x80
+#	define EXPBITS 11
+#	define EXPBIAS 1023
+#	define FRACBITS 52
+#	define EXPMAX (0x7ff)
+#	define QUIET_NAN 0x8000000000000LL
+#	define FRAC_NBITS 64
+#	define FRACHIGH  0x8000000000000000LL
+#	define FRACHIGH2 0xc000000000000000LL
+#	define pack_d __pack_d
+#	define unpack_d __unpack_d
+#	define __fpcmp_parts __fpcmp_parts_d
+	typedef UDItype fractype;
+	typedef USItype halffractype;
+	typedef DFtype FLO_type;
+	typedef DItype intfrac;
+#endif /* FLOAT */
+
+#ifdef US_SOFTWARE_GOFAST
+#	ifdef FLOAT
+#		define add 		fpadd
+#		define sub 		fpsub
+#		define multiply 	fpmul
+#		define divide 		fpdiv
+#		define compare 		fpcmp
+#		define usi_to_float 	__floatunsisf
+#		define si_to_float 	sitofp
+#		define float_to_si 	fptosi
+#		define float_to_usi 	fptoui
+#		define negate 		__negsf2
+#		define sf_to_df		fptodp
+#		define dptofp 		dptofp
+#else
+#		define add 		dpadd
+#		define sub 		dpsub
+#		define multiply 	dpmul
+#		define divide 		dpdiv
+#		define compare 		dpcmp
+#		define usi_to_float 	__floatunsidf
+#		define si_to_float 	litodp
+#		define float_to_si 	dptoli
+#		define float_to_usi 	dptoul
+#		define negate 		__negdf2
+#		define df_to_sf 	dptofp
+#	endif /* FLOAT */
+#else
+#	ifdef FLOAT
+#		define add 		__addsf3
+#		define sub 		__subsf3
+#		define multiply 	__mulsf3
+#		define divide 		__divsf3
+#		define compare 		__cmpsf2
+#		define _eq_f2 		__eqsf2
+#		define _ne_f2 		__nesf2
+#		define _gt_f2 		__gtsf2
+#		define _ge_f2 		__gesf2
+#		define _lt_f2 		__ltsf2
+#		define _le_f2 		__lesf2
+#		define _unord_f2	__unordsf2
+#		define usi_to_float 	__floatunsisf
+#		define si_to_float 	__floatsisf
+#		define float_to_si 	__fixsfsi
+#		define float_to_usi 	__fixunssfsi
+#		define negate 		__negsf2
+#		define sf_to_df		__extendsfdf2
+#else
+#		define add 		__adddf3
+#		define sub 		__subdf3
+#		define multiply 	__muldf3
+#		define divide 		__divdf3
+#		define compare 		__cmpdf2
+#		define _eq_f2 		__eqdf2
+#		define _ne_f2 		__nedf2
+#		define _gt_f2 		__gtdf2
+#		define _ge_f2 		__gedf2
+#		define _lt_f2 		__ltdf2
+#		define _le_f2 		__ledf2
+#		define _unord_f2	__unorddf2
+#		define usi_to_float 	__floatunsidf
+#		define si_to_float 	__floatsidf
+#		define float_to_si 	__fixdfsi
+#		define float_to_usi 	__fixunsdfsi
+#		define negate 		__negdf2
+#		define df_to_sf		__truncdfsf2
+#	endif /* FLOAT */
+#endif /* US_SOFTWARE_GOFAST */
+
+#ifndef INLINE
+#define INLINE __inline__
+#endif
+
+/* Preserve the sticky-bit when shifting fractions to the right.  */
+#define LSHIFT(a) { a = (a & 1) | (a >> 1); }
+
+/* numeric parameters */
+/* F_D_BITOFF is the number of bits offset between the MSB of the mantissa
+   of a float and of a double. Assumes there are only two float types.
+   (double::FRAC_BITS+double::NGARDS-(float::FRAC_BITS-float::NGARDS))
+ */
+#define F_D_BITOFF (52+8-(23+7))
+
+
+#define NORMAL_EXPMIN (-(EXPBIAS)+1)
+#define IMPLICIT_1 (1LL<<(FRACBITS+NGARDS))
+#define IMPLICIT_2 (1LL<<(FRACBITS+1+NGARDS))
+
+/* common types */
+
+typedef enum
+{
+  CLASS_SNAN,
+  CLASS_QNAN,
+  CLASS_ZERO,
+  CLASS_NUMBER,
+  CLASS_INFINITY
+} fp_class_type;
+
+typedef struct
+{
+#ifdef SMALL_MACHINE
+  char class;
+  unsigned char sign;
+  short normal_exp;
+#else
+  fp_class_type class;
+  unsigned int sign;
+  int normal_exp;
+#endif
+
+  union
+    {
+      fractype ll;
+      halffractype l[2];
+    } fraction;
+} fp_number_type;
+
+typedef union
+{
+  FLO_type value;
+  fractype value_raw;
+
+#ifndef FLOAT
+  halffractype words[2];
+#endif
+
+#ifdef FLOAT_BIT_ORDER_MISMATCH
+  struct
+    {
+      fractype fraction:FRACBITS __attribute__ ((packed));
+      unsigned int exp:EXPBITS __attribute__ ((packed));
+      unsigned int sign:1 __attribute__ ((packed));
+    }
+  bits;
+#endif
+
+#ifdef _DEBUG_BITFLOAT
+  struct
+    {
+      unsigned int sign:1 __attribute__ ((packed));
+      unsigned int exp:EXPBITS __attribute__ ((packed));
+      fractype fraction:FRACBITS __attribute__ ((packed));
+    }
+  bits_big_endian;
+
+  struct
+    {
+      fractype fraction:FRACBITS __attribute__ ((packed));
+      unsigned int exp:EXPBITS __attribute__ ((packed));
+      unsigned int sign:1 __attribute__ ((packed));
+    }
+  bits_little_endian;
+#endif
+}
+FLO_union_type;
+
+/* Prototypes */
+
+#if defined(L_pack_df) || defined(L_pack_sf)
+extern FLO_type pack_d (fp_number_type *);
+#endif
+
+extern void unpack_d (FLO_union_type *, fp_number_type *);
+
+#if defined(L_addsub_sf) || defined(L_addsub_df)
+extern FLO_type add (FLO_type, FLO_type);
+extern FLO_type sub (FLO_type, FLO_type);
+#endif
+
+#if defined(L_mul_sf) || defined(L_mul_df)
+extern FLO_type multiply (FLO_type, FLO_type);
+#endif
+
+#if defined(L_div_sf) || defined(L_div_df)
+extern FLO_type divide (FLO_type, FLO_type);
+#endif
+
+extern int __fpcmp_parts (fp_number_type *, fp_number_type *);
+
+#if defined(L_compare_sf) || defined(L_compare_df)
+extern CMPtype compare (FLO_type, FLO_type);
+#endif
+
+#ifndef US_SOFTWARE_GOFAST
+
+#if defined(L_eq_sf) || defined(L_eq_df)
+extern CMPtype _eq_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_ne_sf) || defined(L_ne_df)
+extern CMPtype _ne_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_gt_sf) || defined(L_gt_df)
+extern CMPtype _gt_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_ge_sf) || defined(L_ge_df)
+extern CMPtype _ge_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_lt_sf) || defined(L_lt_df)
+extern CMPtype _lt_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_le_sf) || defined(L_le_df)
+extern CMPtype _le_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_unord_sf) || defined(L_unord_df)
+extern CMPtype _unord_f2 (FLO_type, FLO_type);
+#endif
+
+#endif /* ! US_SOFTWARE_GOFAST */
+
+#if defined(L_si_to_sf) || defined(L_si_to_df)
+extern FLO_type si_to_float (SItype);
+#endif
+
+#if defined(L_sf_to_si) || defined(L_df_to_si)
+extern SItype float_to_si (FLO_type);
+#endif
+
+#if defined(L_sf_to_usi) || defined(L_df_to_usi)
+#ifdef US_SOFTWARE_GOFAST
+extern USItype float_to_usi (FLO_type);
+#endif
+#endif
+
+#if defined(L_usi_to_sf) || defined(L_usi_to_df)
+extern FLO_type usi_to_float (USItype);
+#endif
+
+#if defined(L_negate_sf) || defined(L_negate_df)
+extern FLO_type negate (FLO_type);
+#endif
+
+#ifdef FLOAT
+#if defined(L_make_sf)
+extern SFtype __make_fp (fp_class_type, unsigned int, int, USItype);
+#endif
+#ifndef FLOAT_ONLY
+extern DFtype __make_dp (fp_class_type, unsigned int, int, UDItype);
+#if defined(L_sf_to_df)
+extern DFtype sf_to_df (SFtype);
+#endif
+#endif /* ! FLOAT_ONLY */
+#endif /* FLOAT */
+
+#ifndef FLOAT
+extern SFtype __make_fp (fp_class_type, unsigned int, int, USItype);
+#if defined(L_make_df)
+extern DFtype __make_dp (fp_class_type, unsigned int, int, UDItype);
+#endif
+#if defined(L_df_to_sf)
+extern SFtype df_to_sf (DFtype);
+#endif
+#endif /* ! FLOAT */
+
+#endif /* ! GCC_FP_BIT_H */