dfp.c (WORDS_BIGENDIAN): Define to 0 if not defined.

gcc:
	* dfp.c (WORDS_BIGENDIAN): Define to 0 if not defined.
	(encode_decimal64, decode_decimal64, encode_decimal128,
	decode_decimal128): Reverse order of 32-bit parts of value if host
	and target endianness differ.

libdecnumber:
	* dconfig.h: New.
	* decContext.c, decExcept.c, decExcept.h, decLibrary.c,
	decNumber.c, decNumberLocal.h, decRound.c, dpd/decimal128.c,
	dpd/decimal32.c, dpd/decimal64.c: Include dconfig.h not config.h.
	* dpd/decimal128Local.h (decimal128SetSign, decimal128ClearSign,
	decimal128FlipSign): Use WORDS_BIGENDIAN not
	FLOAT_WORDS_BIG_ENDIAN.
	* bid/host-ieee128.c: Include dconfig.h.
	(__host_to_ieee_128, __ieee_to_host_128): Swap 64-bit halves of
	value if WORDS_BIGENDIAN.

libgcc:
	* Makefile.in (DECNUMINC): Remove
	-I$(MULTIBUILDTOP)../../libdecnumber.
	* gstdint.h: New.

From-SVN: r136641

gcc/ChangeLog

@@ -1,3 +1,10 @@
+2008-06-10  Joseph Myers  <joseph@codesourcery.com>
+
+	* dfp.c (WORDS_BIGENDIAN): Define to 0 if not defined.
+	(encode_decimal64, decode_decimal64, encode_decimal128,
+	decode_decimal128): Reverse order of 32-bit parts of value if host
+	and target endianness differ.
+
 2008-06-10  Vinodha Ramasamy  <vinodha@google.com>
         * value_prob.c (tree_divmod_fixed_value_transform): Use gcov_type.
 	Avoid division by 0.

gcc/dfp.c

@@ -36,6 +36,10 @@ along with GCC; see the file COPYING3.  If not see
 #include "decimal32.h"
 #include "decNumber.h"
 
+#ifndef WORDS_BIGENDIAN
+#define WORDS_BIGENDIAN 0
+#endif
+
 /* Initialize R (a real with the decimal flag set) from DN.  Can
    utilize status passed in via CONTEXT, if a previous operation had
    interesting status.  */
@@ -173,8 +177,16 @@ encode_decimal64 (const struct real_format *fmt ATTRIBUTE_UNUSED,
   decimal_to_decnumber (r, &dn);
   decimal64FromNumber (&d64, &dn, &set);
 
-  buf[0] = *(uint32_t *) &d64.bytes[0];
+  if (WORDS_BIGENDIAN == FLOAT_WORDS_BIG_ENDIAN)
-  buf[1] = *(uint32_t *) &d64.bytes[4];
+    {
+      buf[0] = *(uint32_t *) &d64.bytes[0];
+      buf[1] = *(uint32_t *) &d64.bytes[4];
+    }
+  else
+    {
+      buf[0] = *(uint32_t *) &d64.bytes[4];
+      buf[1] = *(uint32_t *) &d64.bytes[0];
+    }
 }
 
 /* Decode an IEEE 754R decimal64 type into a real.  */
@@ -190,8 +202,16 @@ decode_decimal64 (const struct real_format *fmt ATTRIBUTE_UNUSED,
   decContextDefault (&set, DEC_INIT_DECIMAL128);
   set.traps = 0;
 
-  *((uint32_t *) &d64.bytes[0]) = (uint32_t) buf[0];
+  if (WORDS_BIGENDIAN == FLOAT_WORDS_BIG_ENDIAN)
-  *((uint32_t *) &d64.bytes[4]) = (uint32_t) buf[1];
+    {
+      *((uint32_t *) &d64.bytes[0]) = (uint32_t) buf[0];
+      *((uint32_t *) &d64.bytes[4]) = (uint32_t) buf[1];
+    }
+  else
+    {
+      *((uint32_t *) &d64.bytes[0]) = (uint32_t) buf[1];
+      *((uint32_t *) &d64.bytes[4]) = (uint32_t) buf[0];
+    }
 
   decimal64ToNumber (&d64, &dn);
   decimal_from_decnumber (r, &dn, &set); 
@@ -213,10 +233,20 @@ encode_decimal128 (const struct real_format *fmt ATTRIBUTE_UNUSED,
   decimal_to_decnumber (r, &dn);
   decimal128FromNumber (&d128, &dn, &set);
 
-  buf[0] = *(uint32_t *) &d128.bytes[0];
+  if (WORDS_BIGENDIAN == FLOAT_WORDS_BIG_ENDIAN)
-  buf[1] = *(uint32_t *) &d128.bytes[4];
+    {
-  buf[2] = *(uint32_t *) &d128.bytes[8];
+      buf[0] = *(uint32_t *) &d128.bytes[0];
-  buf[3] = *(uint32_t *) &d128.bytes[12];
+      buf[1] = *(uint32_t *) &d128.bytes[4];
+      buf[2] = *(uint32_t *) &d128.bytes[8];
+      buf[3] = *(uint32_t *) &d128.bytes[12];
+    }
+  else
+    {
+      buf[0] = *(uint32_t *) &d128.bytes[12];
+      buf[1] = *(uint32_t *) &d128.bytes[8];
+      buf[2] = *(uint32_t *) &d128.bytes[4];
+      buf[3] = *(uint32_t *) &d128.bytes[0];
+    }
 }
 
 /* Decode an IEEE 754R decimal128 type into a real.  */
@@ -232,10 +262,20 @@ decode_decimal128 (const struct real_format *fmt ATTRIBUTE_UNUSED,
   decContextDefault (&set, DEC_INIT_DECIMAL128);
   set.traps = 0;
 
-  *((uint32_t *) &d128.bytes[0])  = (uint32_t) buf[0];
+  if (WORDS_BIGENDIAN == FLOAT_WORDS_BIG_ENDIAN)
-  *((uint32_t *) &d128.bytes[4])  = (uint32_t) buf[1];
+    {
-  *((uint32_t *) &d128.bytes[8])  = (uint32_t) buf[2];
+      *((uint32_t *) &d128.bytes[0])  = (uint32_t) buf[0];
-  *((uint32_t *) &d128.bytes[12]) = (uint32_t) buf[3];
+      *((uint32_t *) &d128.bytes[4])  = (uint32_t) buf[1];
+      *((uint32_t *) &d128.bytes[8])  = (uint32_t) buf[2];
+      *((uint32_t *) &d128.bytes[12]) = (uint32_t) buf[3];
+    }
+  else
+    {
+      *((uint32_t *) &d128.bytes[0])  = (uint32_t) buf[3];
+      *((uint32_t *) &d128.bytes[4])  = (uint32_t) buf[2];
+      *((uint32_t *) &d128.bytes[8])  = (uint32_t) buf[1];
+      *((uint32_t *) &d128.bytes[12]) = (uint32_t) buf[0];
+    }
 
   decimal128ToNumber (&d128, &dn);
   decimal_from_decnumber (r, &dn, &set); 

libdecnumber/ChangeLog

@@ -1,3 +1,16 @@
+2008-06-10  Joseph Myers  <joseph@codesourcery.com>
+
+	* dconfig.h: New.
+	* decContext.c, decExcept.c, decExcept.h, decLibrary.c,
+	decNumber.c, decNumberLocal.h, decRound.c, dpd/decimal128.c,
+	dpd/decimal32.c, dpd/decimal64.c: Include dconfig.h not config.h.
+	* dpd/decimal128Local.h (decimal128SetSign, decimal128ClearSign,
+	decimal128FlipSign): Use WORDS_BIGENDIAN not
+	FLOAT_WORDS_BIG_ENDIAN.
+	* bid/host-ieee128.c: Include dconfig.h.
+	(__host_to_ieee_128, __ieee_to_host_128): Swap 64-bit halves of
+	value if WORDS_BIGENDIAN.
+
 2008-04-18  Paolo Bonzini  <bonzini@gnu.org>
 
 	PR bootstrap/35457

libdecnumber/bid/host-ieee128.c

@@ -29,20 +29,35 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 
 #include <string.h>
 
+#include "dconfig.h"
 #include "bid-dpd.h"
 #include "decimal128.h"
 
 void __host_to_ieee_128 (_Decimal128 in, decimal128 *out);
 void __ieee_to_host_128 (decimal128 in, _Decimal128 *out);
 
+/* The code for converting 128-bit values between DPD and BID presumes
+   that the 64-bit halves of the 128-bit value are in little-endian
+   order, so they need swapping on big-endian hosts.  */
+
 void
 __host_to_ieee_128 (_Decimal128 in, decimal128 *out)
 {
+#if WORDS_BIGENDIAN
+  memcpy ((char *) out, (char *) &in + 8, 8);
+  memcpy ((char *) out + 8, (char *) &in, 8);
+#else
   memcpy ((char *) out, (char *) &in, 16);
+#endif
 }
 
 void
 __ieee_to_host_128 (decimal128 in, _Decimal128 *out)
 {
+#if WORDS_BIGENDIAN
+  memcpy ((char *) out, (char *) &in + 8, 8);
+  memcpy ((char *) out + 8, (char *) &in, 8);
+#else
   memcpy ((char *) out, (char *) &in, 16);
+#endif
 }

libdecnumber/dconfig.h

@@ -0,0 +1,52 @@
+/* Configure decNumber for either host or target.
+   Copyright (C) 2008 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 2, 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.)
+
+   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 GCC; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+#ifdef IN_LIBGCC2
+
+#include "tconfig.h"
+#include "coretypes.h"
+#include "tm.h"
+
+#ifndef LIBGCC2_WORDS_BIG_ENDIAN
+#define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
+#endif
+
+#ifndef LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
+#define LIBGCC2_FLOAT_WORDS_BIG_ENDIAN LIBGCC2_WORDS_BIG_ENDIAN
+#endif
+
+#if LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
+#define WORDS_BIGENDIAN 1
+#endif
+
+#else
+
+#include "config.h"
+
+#endif

libdecnumber/decContext.c

@@ -37,7 +37,7 @@
 
 #include <string.h>	      /* for strcmp */
 #include <stdio.h>	      /* for printf if DECCHECK */
-#include "config.h"	      /* for GCC definitions */
+#include "dconfig.h"	      /* for GCC definitions */
 #include "decContext.h"	      /* context and base types */
 #include "decNumberLocal.h"   /* decNumber local types, etc. */
 

libdecnumber/decExcept.c

@@ -28,7 +28,7 @@
    02110-1301, USA.  */
 
 #include <fenv.h>
-#include "config.h"
+#include "dconfig.h"
 #include "decContext.h"
 #include "decExcept.h"
 

libdecnumber/decExcept.h

@@ -28,7 +28,7 @@
    02110-1301, USA.  */
 
 #include <fenv.h>
-#include "config.h"
+#include "dconfig.h"
 #include "decContext.h"
 
 #define DFP_EXCEPTIONS_ENABLED 1

libdecnumber/decLibrary.c

@@ -27,7 +27,7 @@
    Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.  */
 
-#include "config.h"
+#include "dconfig.h"
 #include "decContext.h"
 #include "decimal128.h"
 #include "decimal64.h"

libdecnumber/decNumber.c

@@ -170,7 +170,7 @@
 #include <stdio.h>		   /* for printf [if needed] */
 #include <string.h>		   /* for strcpy */
 #include <ctype.h>		   /* for lower */
-#include "config.h"		   /* for GCC definitions */
+#include "dconfig.h"		   /* for GCC definitions */
 #include "decNumber.h"		   /* base number library */
 #include "decNumberLocal.h"	   /* decNumber local types, etc. */
 

libdecnumber/decNumberLocal.h

@@ -44,7 +44,7 @@
 
   #include <stdlib.h>	      /* for abs			      */
   #include <string.h>	      /* for memset, strcpy		      */
-  #include "config.h"	      /* for WORDS_BIGENDIAN                  */
+  #include "dconfig.h"	      /* for WORDS_BIGENDIAN                  */
 
   /* Conditional code flag -- set this to match hardware platform     */
   /* 1=little-endian, 0=big-endian	                              */

libdecnumber/decRound.c

@@ -28,7 +28,7 @@
    Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.  */
 
-#include "config.h"
+#include "dconfig.h"
 #include "decContext.h"
 #include "decRound.h"
 

libdecnumber/dpd/decimal128.c

@@ -42,7 +42,7 @@
 #include <string.h>	      /* [for memset/memcpy] */
 #include <stdio.h>	      /* [for printf] */
 
-#include "config.h"	      /* GCC definitions */
+#include "dconfig.h"	      /* GCC definitions */
 #define	 DECNUMDIGITS 34      /* make decNumbers with space for 34 */
 #include "decNumber.h"	      /* base number library */
 #include "decNumberLocal.h"   /* decNumber local types, etc. */

libdecnumber/dpd/decimal128Local.h

@@ -34,14 +34,14 @@
 
 /* Set sign; this assumes the sign was previously zero.  */
 #define decimal128SetSign(d,b) \
-  { (d)->bytes[FLOAT_WORDS_BIG_ENDIAN ? 0 : 15] |= ((unsigned) (b) << 7); }
+  { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] |= ((unsigned) (b) << 7); }
 
 /* Clear sign.  */
 #define decimal128ClearSign(d) \
-  { (d)->bytes[FLOAT_WORDS_BIG_ENDIAN ? 0 : 15] &= ~0x80; }
+  { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] &= ~0x80; }
 
 /* Flip sign.  */
 #define decimal128FlipSign(d) \
-  { (d)->bytes[FLOAT_WORDS_BIG_ENDIAN ? 0 : 15] ^= 0x80; }
+  { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] ^= 0x80; }
 
 #endif

libdecnumber/dpd/decimal32.c

@@ -42,7 +42,7 @@
 #include <string.h>	      /* [for memset/memcpy] */
 #include <stdio.h>	      /* [for printf] */
 
-#include "config.h"	      /* GCC definitions */
+#include "dconfig.h"	      /* GCC definitions */
 #define	 DECNUMDIGITS  7      /* make decNumbers with space for 7 */
 #include "decNumber.h"	      /* base number library */
 #include "decNumberLocal.h"   /* decNumber local types, etc. */

libdecnumber/dpd/decimal64.c

@@ -42,7 +42,7 @@
 #include <string.h>	      /* [for memset/memcpy] */
 #include <stdio.h>	      /* [for printf] */
 
-#include "config.h"	      /* GCC definitions */
+#include "dconfig.h"	      /* GCC definitions */
 #define	 DECNUMDIGITS 16      /* make decNumbers with space for 16 */
 #include "decNumber.h"	      /* base number library */
 #include "decNumberLocal.h"   /* decNumber local types, etc. */

libgcc/ChangeLog

@@ -1,3 +1,9 @@
+2008-06-10  Joseph Myers  <joseph@codesourcery.com>
+
+	* Makefile.in (DECNUMINC): Remove
+	-I$(MULTIBUILDTOP)../../libdecnumber.
+	* gstdint.h: New.
+
 2008-06-07  Joseph Myers  <joseph@codesourcery.com>
 
 	* config.host (strongarm*-*-*, ep9312*-*-*, xscale-*-*,

libgcc/Makefile.in

@@ -191,8 +191,7 @@ ifeq ($(enable_decimal_float),bid)
 DECNUMINC = -I$(srcdir)/config/libbid -DENABLE_DECIMAL_BID_FORMAT
 else
 DECNUMINC = -I$(srcdir)/../libdecnumber/$(enable_decimal_float) \
-	    -I$(srcdir)/../libdecnumber \
+	    -I$(srcdir)/../libdecnumber
-	    -I$(MULTIBUILDTOP)../../libdecnumber
 endif
 else
 DECNUMINC =

libgcc/gstdint.h

@@ -0,0 +1,6 @@
+/* This header is only for use of libdecnumber built as part of
+   libgcc.  The targets supported for decimal floating point have
+   <stdint.h>; libdecnumber uses GCC_HEADER_STDINT only for the sake
+   of the host.  */
+
+#include <stdint.h>