real: Do not include gmp.h, mpfr.h, and mpc.h.

gcc/ChangeLog:
	* real: Do not include gmp.h, mpfr.h, and mpc.h.
	(REAL_VALUE_NEGATE, REAL_VALUE_ABS, real_arithmetic2): Remove.
	(real_value_negate, real_value_abs): New prototypes.
	(do_mpc_arg2, real_from_mpfr, mpfr_from_real): Move from here...
	* realmpfr.h (do_mpc_arg2, real_from_mpfr, mpfr_from_real): ...to here,
	new include file for interface between MPFR and REAL_VALUE_TYPE.
	* real.c: Include realmpfr.h.
	(real_arithmetic2): Remove legacy function.
	(real_value_negate): New.
	(real_value_abs): New.
	(mfpr_from_real, real_from_mpfr): Move from here...
	* realmpfr.c (mpfr_from_real, real_from_mpfr): ...to here, new file.
	* builtins.c: Include realmpfr.h.
	* fold-const.c: Include realmpfr.h.
	(fold_comparison): Use real_value_negate instead of REAL_VALUE_NEGATE.
	(fold_negate_const): Likewise.
	(fold_abs_const): Use real_value_abs instead of REAL_VALUE_ABS.
	* toplev.c: Include realmpfr.h.
	* simplify-rtx.c (simplify_const_unary_operation): Use real_value_abs
	and real_value_negate.
	* fixed-value.c (check_real_for_fixed_mode): Likewise.
	* config/arm/arm.c (neg_const_double_rtx_ok_for_fpa): Likewise.
	(vfp3_const_double_index): Likewise.
	(arm_print_operand): Likewise.
	* Makefile.in: Update dependencies.

fortran/ChangeLog:
	* trans-const.c: Include realmpfr.h.
	* Make-lang.in: Update dependencies.

From-SVN: r159679

15 files changed, 206 insertions, 116 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cdea224..ee78f23 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,31 @@
+2010-05-21  Steven Bosscher  <steven@gcc.gnu.org>
+
+	* real: Do not include gmp.h, mpfr.h, and mpc.h.
+	(REAL_VALUE_NEGATE, REAL_VALUE_ABS, real_arithmetic2): Remove.
+	(real_value_negate, real_value_abs): New prototypes.
+	(do_mpc_arg2, real_from_mpfr, mpfr_from_real): Move from here...
+	* realmpfr.h (do_mpc_arg2, real_from_mpfr, mpfr_from_real): ...to here,
+	new include file for interface between MPFR and REAL_VALUE_TYPE.
+	* real.c: Include realmpfr.h.
+	(real_arithmetic2): Remove legacy function.
+	(real_value_negate): New.
+	(real_value_abs): New.
+	(mfpr_from_real, real_from_mpfr): Move from here...
+	* realmpfr.c (mpfr_from_real, real_from_mpfr): ...to here, new file.
+	* builtins.c: Include realmpfr.h.
+	* fold-const.c: Include realmpfr.h.
+	(fold_comparison): Use real_value_negate instead of REAL_VALUE_NEGATE.
+	(fold_negate_const): Likewise.
+	(fold_abs_const): Use real_value_abs instead of REAL_VALUE_ABS.
+	* toplev.c: Include realmpfr.h.
+	* simplify-rtx.c (simplify_const_unary_operation): Use real_value_abs
+	and real_value_negate.
+	* fixed-value.c (check_real_for_fixed_mode): Likewise.
+	* config/arm/arm.c (neg_const_double_rtx_ok_for_fpa): Likewise.
+	(vfp3_const_double_index): Likewise.
+	(arm_print_operand): Likewise.
+	* Makefile.in: Update dependencies.
+
 2010-05-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
 	* config/s390/s390.c (override_options): Increase the default
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index fa1ee38..2af5803 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -1285,6 +1285,7 @@ OBJS-common = \
 	print-tree.o \
 	profile.o \
 	real.o \
+	realmpfr.o \
 	recog.o \
 	reg-stack.o \
 	regcprop.o \
@@ -2694,7 +2695,7 @@ tree-pretty-print.o : tree-pretty-print.c $(CONFIG_H) $(SYSTEM_H) \
 fold-const.o : fold-const.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
    $(TREE_H) $(FLAGS_H) $(TOPLEV_H) $(HASHTAB_H) $(EXPR_H) $(RTL_H) \
    $(GGC_H) $(TM_P_H) langhooks.h $(MD5_H) intl.h $(TARGET_H) \
-   $(GIMPLE_H)
+   $(GIMPLE_H) realmpfr.h
 diagnostic.o : diagnostic.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
    $(TREE_H) version.h $(TM_P_H) $(FLAGS_H) $(INPUT_H) $(TOPLEV_H) intl.h \
    $(DIAGNOSTIC_H) langhooks.h $(LANGHOOKS_DEF_H) diagnostic.def opts.h \
@@ -2728,7 +2729,7 @@ toplev.o : toplev.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \
    langhooks.h insn-flags.h $(CFGLAYOUT_H) $(CFGLOOP_H) hosthooks.h \
    $(CGRAPH_H) $(COVERAGE_H) alloc-pool.h $(GGC_H) $(INTEGRATE_H) \
    opts.h params.def tree-mudflap.h $(TREE_PASS_H) $(GIMPLE_H) \
-   tree-ssa-alias.h $(PLUGIN_H)
+   tree-ssa-alias.h $(PLUGIN_H) realmpfr.h
 	$(COMPILER) $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) \
 	  -DTARGET_NAME=\"$(target_noncanonical)\" \
 	  -c $(srcdir)/toplev.c $(OUTPUT_OPTION)
@@ -2807,7 +2808,7 @@ builtins.o : builtins.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(TREE_H) $(GIMPLE_H) $(FLAGS_H) $(TARGET_H) $(FUNCTION_H) $(REGS_H) \
    $(EXPR_H) $(OPTABS_H) insn-config.h $(RECOG_H) output.h typeclass.h \
    hard-reg-set.h $(TOPLEV_H) hard-reg-set.h $(EXCEPT_H) $(TM_P_H) $(PREDICT_H) \
-   libfuncs.h langhooks.h $(BASIC_BLOCK_H) tree-mudflap.h \
+   libfuncs.h langhooks.h $(BASIC_BLOCK_H) tree-mudflap.h realmpfr.h \
    $(BUILTINS_DEF) $(MACHMODE_H) $(DIAGNOSTIC_H) $(TREE_FLOW_H) value-prof.h
 calls.o : calls.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(TREE_H) $(FLAGS_H) $(EXPR_H) $(OPTABS_H) langhooks.h $(TARGET_H) \
@@ -2853,7 +2854,8 @@ emit-rtl.o : emit-rtl.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(HASHTAB_H) $(TM_P_H) debug.h langhooks.h $(TREE_PASS_H) gt-emit-rtl.h \
    $(DF_H) $(PARAMS_H) $(TARGET_H)
 real.o : real.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \
-   $(TOPLEV_H) $(TM_P_H) $(REAL_H) dfp.h
+   $(TOPLEV_H) $(TM_P_H) $(REAL_H) dfp.h realmpfr.h
+realmpfr.o : realmpfr.c realmpfr.h $(CONFIG_H) $(SYSTEM_H) $(REAL_H)
 dfp.o : dfp.c dfp.h $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H)	$(TREE_H) \
    $(TOPLEV_H) $(TM_P_H) $(REAL_H) $(DECNUM_H)
 fixed-value.o: fixed-value.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
diff --git a/gcc/builtins.c b/gcc/builtins.c
index b7be275..871d670 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -26,6 +26,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "machmode.h"
 #include "rtl.h"
 #include "tree.h"
+#include "realmpfr.h"
 #include "gimple.h"
 #include "flags.h"
 #include "regs.h"
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 7a7dea4..88f21bc 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -7799,7 +7799,7 @@ neg_const_double_rtx_ok_for_fpa (rtx x)
     init_fp_table ();
 
   REAL_VALUE_FROM_CONST_DOUBLE (r, x);
-  r = REAL_VALUE_NEGATE (r);
+  r = real_value_negate (&r);
   if (REAL_VALUE_MINUS_ZERO (r))
     return 0;
 
@@ -7850,7 +7850,7 @@ vfp3_const_double_index (rtx x)
 
   /* Extract sign, exponent and mantissa.  */
   sign = REAL_VALUE_NEGATIVE (r) ? 1 : 0;
-  r = REAL_VALUE_ABS (r);
+  r = real_value_abs (&r);
   exponent = REAL_EXP (&r);
   /* For the mantissa, we expand into two HOST_WIDE_INTS, apart from the
      highest (sign) bit, with a fixed binary point at bit point_pos.
@@ -15133,7 +15133,7 @@ arm_print_operand (FILE *stream, rtx x, int code)
       {
 	REAL_VALUE_TYPE r;
 	REAL_VALUE_FROM_CONST_DOUBLE (r, x);
-	r = REAL_VALUE_NEGATE (r);
+	r = real_value_negate (&r);
 	fprintf (stream, "%s", fp_const_from_val (&r));
       }
       return;
diff --git a/gcc/fixed-value.c b/gcc/fixed-value.c
index 8c23bf0..9af431c 100644
--- a/gcc/fixed-value.c
+++ b/gcc/fixed-value.c
@@ -67,7 +67,7 @@ check_real_for_fixed_mode (REAL_VALUE_TYPE *real_value, enum machine_mode mode)
   real_2expN (&epsilon_value, -GET_MODE_FBIT (mode), mode);
 
   if (SIGNED_FIXED_POINT_MODE_P (mode))
-    min_value = REAL_VALUE_NEGATE (max_value);
+    min_value = real_value_negate (&max_value);
   else
     real_from_string (&min_value, "0.0");
 
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 65ded14..17672ad 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -53,6 +53,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "tm.h"
 #include "flags.h"
 #include "tree.h"
+#include "realmpfr.h"
 #include "rtl.h"
 #include "expr.h"
 #include "tm_p.h"
@@ -8977,7 +8978,7 @@ fold_comparison (location_t loc, enum tree_code code, tree type,
 	    return fold_build2_loc (loc, swap_tree_comparison (code), type,
 				TREE_OPERAND (arg0, 0),
 				build_real (TREE_TYPE (arg1),
-					    REAL_VALUE_NEGATE (cst)));
+					    real_value_negate (&cst)));
 
 	  /* IEEE doesn't distinguish +0 and -0 in comparisons.  */
 	  /* a CMP (-0) -> a CMP 0  */
@@ -15166,7 +15167,7 @@ fold_negate_const (tree arg0, tree type)
       }
 
     case REAL_CST:
-      t = build_real (type, REAL_VALUE_NEGATE (TREE_REAL_CST (arg0)));
+      t = build_real (type, real_value_negate (&TREE_REAL_CST (arg0)));
       break;
 
     case FIXED_CST:
@@ -15225,7 +15226,7 @@ fold_abs_const (tree arg0, tree type)
 
     case REAL_CST:
       if (REAL_VALUE_NEGATIVE (TREE_REAL_CST (arg0)))
-	t = build_real (type, REAL_VALUE_NEGATE (TREE_REAL_CST (arg0)));
+	t = build_real (type, real_value_negate (&TREE_REAL_CST (arg0)));
       else
 	t =  arg0;
       break;
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index cce9484..fc99619 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,5 +1,10 @@
 2010-05-21  Steven Bosscher  <steven@gcc.gnu.org>
 
+	* trans-const.c: Include realmpfr.h.
+	* Make-lang.in: Update dependencies.
+
+2010-05-21  Steven Bosscher  <steven@gcc.gnu.org>
+
 	* trans-const.c, trans-types.c, trans-intrinsic.c:
 	Clean up redundant includes.
 
diff --git a/gcc/fortran/Make-lang.in b/gcc/fortran/Make-lang.in
index 49ffdf9..b74f9e99 100644
--- a/gcc/fortran/Make-lang.in
+++ b/gcc/fortran/Make-lang.in
@@ -345,7 +345,7 @@ fortran/trans-decl.o: $(GFORTRAN_TRANS_DEPS) gt-fortran-trans-decl.h \
   $(TREE_DUMP_H) debug.h pointer-set.h
 fortran/trans-types.o: $(GFORTRAN_TRANS_DEPS) gt-fortran-trans-types.h \
   $(REAL_H) toplev.h $(TARGET_H) $(FLAGS_H) dwarf2out.h
-fortran/trans-const.o: $(GFORTRAN_TRANS_DEPS)
+fortran/trans-const.o: $(GFORTRAN_TRANS_DEPS) realmpfr.h
 fortran/trans-expr.o: $(GFORTRAN_TRANS_DEPS) fortran/dependency.h
 fortran/trans-stmt.o: $(GFORTRAN_TRANS_DEPS) fortran/dependency.h
 fortran/trans-openmp.o: $(GFORTRAN_TRANS_DEPS)
diff --git a/gcc/fortran/trans-const.c b/gcc/fortran/trans-const.c
index 9570da0..7ced6f4 100644
--- a/gcc/fortran/trans-const.c
+++ b/gcc/fortran/trans-const.c
@@ -25,6 +25,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
+#include "realmpfr.h"
 #include "toplev.h"
 #include "double-int.h"
 #include "gfortran.h"
diff --git a/gcc/real.c b/gcc/real.c
index 25e599d..8a5799e 100644
--- a/gcc/real.c
+++ b/gcc/real.c
@@ -27,6 +27,7 @@
 #include "tree.h"
 #include "toplev.h"
 #include "real.h"
+#include "realmpfr.h"
 #include "tm_p.h"
 #include "dfp.h"
 
@@ -1057,14 +1058,19 @@ real_arithmetic (REAL_VALUE_TYPE *r, int icode, const REAL_VALUE_TYPE *op0,
   return false;
 }
 
-/* Legacy.  Similar, but return the result directly.  */
+REAL_VALUE_TYPE
+real_value_negate (const REAL_VALUE_TYPE *op0)
+{
+  REAL_VALUE_TYPE r;
+  real_arithmetic (&r, NEGATE_EXPR, op0, NULL);
+  return r;
+}
 
 REAL_VALUE_TYPE
-real_arithmetic2 (int icode, const REAL_VALUE_TYPE *op0,
-		  const REAL_VALUE_TYPE *op1)
+real_value_abs (const REAL_VALUE_TYPE *op0)
 {
   REAL_VALUE_TYPE r;
-  real_arithmetic (&r, icode, op0, op1);
+  real_arithmetic (&r, ABS_EXPR, op0, NULL);
   return r;
 }
 
@@ -4982,82 +4988,6 @@ real_copysign (REAL_VALUE_TYPE *r, const REAL_VALUE_TYPE *x)
   r->sign = x->sign;
 }
 
-/* Convert from REAL_VALUE_TYPE to MPFR.  The caller is responsible
-   for initializing and clearing the MPFR parameter.  */
-
-void
-mpfr_from_real (mpfr_ptr m, const REAL_VALUE_TYPE *r, mp_rnd_t rndmode)
-{
-  /* We use a string as an intermediate type.  */
-  char buf[128];
-  int ret;
-
-  /* Take care of Infinity and NaN.  */
-  if (r->cl == rvc_inf)
-    {
-      mpfr_set_inf (m, r->sign == 1 ? -1 : 1);
-      return;
-    }
-
-  if (r->cl == rvc_nan)
-    {
-      mpfr_set_nan (m);
-      return;
-    }
-
-  real_to_hexadecimal (buf, r, sizeof (buf), 0, 1);
-  /* mpfr_set_str() parses hexadecimal floats from strings in the same
-     format that GCC will output them.  Nothing extra is needed.  */
-  ret = mpfr_set_str (m, buf, 16, rndmode);
-  gcc_assert (ret == 0);
-}
-
-/* Convert from MPFR to REAL_VALUE_TYPE, for a given type TYPE and rounding
-   mode RNDMODE.  TYPE is only relevant if M is a NaN.  */
-
-void
-real_from_mpfr (REAL_VALUE_TYPE *r, mpfr_srcptr m, tree type, mp_rnd_t rndmode)
-{
-  /* We use a string as an intermediate type.  */
-  char buf[128], *rstr;
-  mp_exp_t exp;
-
-  /* Take care of Infinity and NaN.  */
-  if (mpfr_inf_p (m))
-    {
-      real_inf (r);
-      if (mpfr_sgn (m) < 0)
-	*r = REAL_VALUE_NEGATE (*r);
-      return;
-    }
-
-  if (mpfr_nan_p (m))
-    {
-      real_nan (r, "", 1, TYPE_MODE (type));
-      return;
-    }
-
-  rstr = mpfr_get_str (NULL, &exp, 16, 0, m, rndmode);
-
-  /* The additional 12 chars add space for the sprintf below.  This
-     leaves 6 digits for the exponent which is supposedly enough.  */
-  gcc_assert (rstr != NULL && strlen (rstr) < sizeof (buf) - 12);
-
-  /* REAL_VALUE_ATOF expects the exponent for mantissa * 2**exp,
-     mpfr_get_str returns the exponent for mantissa * 16**exp, adjust
-     for that.  */
-  exp *= 4;
-
-  if (rstr[0] == '-')
-    sprintf (buf, "-0x.%sp%d", &rstr[1], (int) exp);
-  else
-    sprintf (buf, "0x.%sp%d", rstr, (int) exp);
-
-  mpfr_free_str (rstr);
-
-  real_from_string (r, buf);
-}
-
 /* Check whether the real constant value given is an integer.  */
 
 bool
diff --git a/gcc/real.h b/gcc/real.h
index 980bf96..d16dc249 100644
--- a/gcc/real.h
+++ b/gcc/real.h
@@ -22,12 +22,6 @@
 #ifndef GCC_REAL_H
 #define GCC_REAL_H
 
-#ifndef GENERATOR_FILE
-#include <gmp.h>
-#include <mpfr.h>
-#include <mpc.h>
-extern tree do_mpc_arg2 (tree, tree, tree, int, int (*)(mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
-#endif
 #include "machmode.h"
 
 /* An expanded form of the represented number.  */
@@ -394,14 +388,8 @@ extern REAL_VALUE_TYPE real_value_truncate (enum machine_mode,
 #define REAL_VALUE_TO_INT(plow, phigh, r) \
   real_to_integer2 (plow, phigh, &(r))
 
-extern REAL_VALUE_TYPE real_arithmetic2 (int, const REAL_VALUE_TYPE *,
-					 const REAL_VALUE_TYPE *);
-
-#define REAL_VALUE_NEGATE(X) \
-  real_arithmetic2 (NEGATE_EXPR, &(X), NULL)
-
-#define REAL_VALUE_ABS(X) \
-  real_arithmetic2 (ABS_EXPR, &(X), NULL)
+extern REAL_VALUE_TYPE real_value_negate (const REAL_VALUE_TYPE *);
+extern REAL_VALUE_TYPE real_value_abs (const REAL_VALUE_TYPE *);
 
 extern int significand_size (enum machine_mode);
 
@@ -496,14 +484,6 @@ extern void real_round (REAL_VALUE_TYPE *, enum machine_mode,
 /* Set the sign of R to the sign of X.  */
 extern void real_copysign (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *);
 
-#ifndef GENERATOR_FILE
-/* Convert between MPFR and REAL_VALUE_TYPE.  The caller is
-   responsible for initializing and clearing the MPFR parameter.  */
-
-extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, tree, mp_rnd_t);
-extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *, mp_rnd_t);
-#endif
-
 /* Check whether the real constant value given is an integer.  */
 extern bool real_isinteger (const REAL_VALUE_TYPE *c, enum machine_mode mode);
 
diff --git a/gcc/realmpfr.c b/gcc/realmpfr.c
new file mode 100644
index 0000000..2836338
--- /dev/null
+++ b/gcc/realmpfr.c
@@ -0,0 +1,101 @@
+/* Conversion routines from GCC internal float representation to MPFR.
+   Copyright (C) 2010
+
+   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.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "realmpfr.h"
+#include "tree.h"	/* For TYPE_MODE in real_from_mpfr.  */
+
+/* Convert from REAL_VALUE_TYPE to MPFR.  The caller is responsible
+   for initializing and clearing the MPFR parameter.  */
+
+void
+mpfr_from_real (mpfr_ptr m, const REAL_VALUE_TYPE *r, mp_rnd_t rndmode)
+{
+  /* We use a string as an intermediate type.  */
+  char buf[128];
+  int ret;
+
+  /* Take care of Infinity and NaN.  */
+  if (r->cl == rvc_inf)
+    {
+      mpfr_set_inf (m, r->sign == 1 ? -1 : 1);
+      return;
+    }
+
+  if (r->cl == rvc_nan)
+    {
+      mpfr_set_nan (m);
+      return;
+    }
+
+  real_to_hexadecimal (buf, r, sizeof (buf), 0, 1);
+  /* mpfr_set_str() parses hexadecimal floats from strings in the same
+     format that GCC will output them.  Nothing extra is needed.  */
+  ret = mpfr_set_str (m, buf, 16, rndmode);
+  gcc_assert (ret == 0);
+}
+
+/* Convert from MPFR to REAL_VALUE_TYPE, for a given type TYPE and rounding
+   mode RNDMODE.  TYPE is only relevant if M is a NaN.  */
+
+void
+real_from_mpfr (REAL_VALUE_TYPE *r, mpfr_srcptr m, tree type, mp_rnd_t rndmode)
+{
+  /* We use a string as an intermediate type.  */
+  char buf[128], *rstr;
+  mp_exp_t exp;
+
+  /* Take care of Infinity and NaN.  */
+  if (mpfr_inf_p (m))
+    {
+      real_inf (r);
+      if (mpfr_sgn (m) < 0)
+	*r = real_value_negate (r);
+      return;
+    }
+
+  if (mpfr_nan_p (m))
+    {
+      real_nan (r, "", 1, TYPE_MODE (type));
+      return;
+    }
+
+  rstr = mpfr_get_str (NULL, &exp, 16, 0, m, rndmode);
+
+  /* The additional 12 chars add space for the sprintf below.  This
+     leaves 6 digits for the exponent which is supposedly enough.  */
+  gcc_assert (rstr != NULL && strlen (rstr) < sizeof (buf) - 12);
+
+  /* REAL_VALUE_ATOF expects the exponent for mantissa * 2**exp,
+     mpfr_get_str returns the exponent for mantissa * 16**exp, adjust
+     for that.  */
+  exp *= 4;
+
+  if (rstr[0] == '-')
+    sprintf (buf, "-0x.%sp%d", &rstr[1], (int) exp);
+  else
+    sprintf (buf, "0x.%sp%d", rstr, (int) exp);
+
+  mpfr_free_str (rstr);
+
+  real_from_string (r, buf);
+}
+
diff --git a/gcc/realmpfr.h b/gcc/realmpfr.h
new file mode 100644
index 0000000..ab234e9
--- /dev/null
+++ b/gcc/realmpfr.h
@@ -0,0 +1,40 @@
+/* Definitions of floating-point conversion from compiler
+   internal format to MPFR.
+   Copyright (C) 2010
+   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.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_REALGMP_H
+#define GCC_REALGMP_H
+
+#include <gmp.h>
+#include <mpfr.h>
+#include <mpc.h>
+#include "real.h"
+
+/* In builtins.c.  */
+extern tree do_mpc_arg2 (tree, tree, tree, int, int (*)(mpc_ptr, mpc_srcptr, mpc_srcptr, mpc_rnd_t));
+
+/* Convert between MPFR and REAL_VALUE_TYPE.  The caller is
+   responsible for initializing and clearing the MPFR parameter.  */
+
+extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, tree, mp_rnd_t);
+extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *, mp_rnd_t);
+
+#endif /* ! GCC_REALGMP_H */
+
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index 323633e..b38ab2e 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -1481,10 +1481,10 @@ simplify_const_unary_operation (enum rtx_code code, enum machine_mode mode,
 	  d = t;
 	  break;
 	case ABS:
-	  d = REAL_VALUE_ABS (d);
+	  d = real_value_abs (&d);
 	  break;
 	case NEG:
-	  d = REAL_VALUE_NEGATE (d);
+	  d = real_value_negate (&d);
 	  break;
 	case FLOAT_TRUNCATE:
 	  d = real_value_truncate (mode, d);
diff --git a/gcc/toplev.c b/gcc/toplev.c
index c328719..364a2aa 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -41,6 +41,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "line-map.h"
 #include "input.h"
 #include "tree.h"
+#include "realmpfr.h"	/* For GMP/MPFR/MPC versions, in print_version.  */
 #include "version.h"
 #include "rtl.h"
 #include "tm_p.h"