gcc/

[pf3gnuchains/gcc-fork.git] / gcc / sreal.c

diff --git a/gcc/sreal.c b/gcc/sreal.c
index 8980659..415a02c 100644 (file)
--- a/gcc/sreal.c
+++ b/gcc/sreal.c
@@ -1,11 +1,11 @@
 /* Simple data type for positive real numbers for the GNU compiler.
 /* Simple data type for positive real numbers for the GNU compiler.

-   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2007 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
 
 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
+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
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -14,9 +14,8 @@ 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
 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, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */

 
 /* This library supports positive real numbers and 0;
    inf and nan are NOT supported.
 
 /* This library supports positive real numbers and 0;
    inf and nan are NOT supported.


@@ -94,17 +93,12 @@ copy (sreal *r, sreal *a)
 static inline void
 shift_right (sreal *x, int s)
 {
 static inline void
 shift_right (sreal *x, int s)
 {

-#ifdef ENABLE_CHECKING
-  if (s <= 0 || s > SREAL_BITS)
-    abort ();
-  if (x->exp + s > SREAL_MAX_EXP)
-    {
-      /* Exponent should never be so large because shift_right is used only by
-        sreal_add and sreal_sub ant thus the number cannot be shifted out from
-        exponent range.  */
-      abort ();
-    }
-#endif
+  gcc_assert (s > 0);
+  gcc_assert (s <= SREAL_BITS);
+  /* Exponent should never be so large because shift_right is used only by
+     sreal_add and sreal_sub ant thus the number cannot be shifted out from
+     exponent range.  */
+  gcc_assert (x->exp + s <= SREAL_MAX_EXP);

 
   x->exp += s;
 
 
   x->exp += s;
 


@@ -401,10 +395,7 @@ sreal_sub (sreal *r, sreal *a, sreal *b)
   sreal tmp;
   sreal *bb;
 
   sreal tmp;
   sreal *bb;
 

-  if (sreal_compare (a, b) < 0)
-    {
-      abort ();
-    }
+  gcc_assert (sreal_compare (a, b) >= 0);

 
   dexp = a->exp - b->exp;
   r->exp = a->exp;
 
   dexp = a->exp - b->exp;
   r->exp = a->exp;


@@ -509,11 +500,8 @@ sreal_div (sreal *r, sreal *a, sreal *b)
 #if SREAL_PART_BITS < 32
   unsigned HOST_WIDE_INT tmp, tmp1, tmp2;
 
 #if SREAL_PART_BITS < 32
   unsigned HOST_WIDE_INT tmp, tmp1, tmp2;
 

-  if (b->sig_hi < SREAL_MIN_SIG)
-    {
-      abort ();
-    }
-  else if (a->sig_hi < SREAL_MIN_SIG)
+  gcc_assert (b->sig_hi >= SREAL_MIN_SIG);
+  if (a->sig_hi < SREAL_MIN_SIG)

     {
       r->sig_hi = 0;
       r->sig_lo = 0;
     {
       r->sig_hi = 0;
       r->sig_lo = 0;


@@ -546,16 +534,10 @@ sreal_div (sreal *r, sreal *a, sreal *b)
       normalize (r);
     }
 #else
       normalize (r);
     }
 #else

-  if (b->sig == 0)
-    {
-      abort ();
-    }
-  else
-    {
-      r->sig = (a->sig << SREAL_PART_BITS) / b->sig;
-      r->exp = a->exp - b->exp - SREAL_PART_BITS;
-      normalize (r);
-    }
+  gcc_assert (b->sig != 0);
+  r->sig = (a->sig << SREAL_PART_BITS) / b->sig;
+  r->exp = a->exp - b->exp - SREAL_PART_BITS;
+  normalize (r);

 #endif
   return r;
 }
 #endif
   return r;
 }