X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Freal.h;h=475ab4563fe709397de08cdedc2a60d240fc647b;hb=52dc45c89861df90e305cfd470df94e527e8c192;hp=2b9a371f73ece13efbac253fc038d331d4f5c507;hpb=3ad4992fcd7ff7630590475a58eb6bc739e60888;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/real.h b/gcc/real.h
index 2b9a371f73e..475ab4563fe 100644
--- a/gcc/real.h
+++ b/gcc/real.h
@@ -1,6 +1,6 @@
 /* Definitions of floating-point access for GNU compiler.
    Copyright (C) 1989, 1991, 1994, 1996, 1997, 1998, 1999,
-   2000, 2002, 2003 Free Software Foundation, Inc.
+   2000, 2002, 2003, 2004 Free Software Foundation, Inc.
 
    This file is part of GCC.
 
@@ -42,14 +42,23 @@ enum real_value_class {
 
 struct real_value GTY(())
 {
-  ENUM_BITFIELD (real_value_class) class : 2;
+  /* Use the same underlying type for all bit-fields, so as to make
+     sure they're packed together, otherwise REAL_VALUE_TYPE_SIZE will
+     be miscomputed.  */
+  unsigned int /* ENUM_BITFIELD (real_value_class) */ class : 2;
   unsigned int sign : 1;
   unsigned int signalling : 1;
   unsigned int canonical : 1;
-  signed int exp : EXP_BITS;
+  unsigned int uexp : EXP_BITS;
   unsigned long sig[SIGSZ];
 };
 
+#define REAL_EXP(REAL) \
+  ((int)((REAL)->uexp ^ (unsigned int)(1 << (EXP_BITS - 1))) \
+   - (1 << (EXP_BITS - 1)))
+#define SET_REAL_EXP(REAL, EXP) \
+  ((REAL)->uexp = ((unsigned int)(EXP) & (unsigned int)((1 << EXP_BITS) - 1)))
+
 /* Various headers condition prototypes on #ifdef REAL_VALUE_TYPE, so it
    needs to be a macro.  We do need to continue to have a structure tag
    so that other headers can forward declare it.  */
@@ -143,8 +152,10 @@ struct real_format
 
 /* The target format used for each floating floating point mode.
    Indexed by MODE - QFmode.  */
-extern const struct real_format *real_format_for_mode[TFmode - QFmode + 1];
+extern const struct real_format *
+  real_format_for_mode[MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1];
 
+#define REAL_MODE_FORMAT(MODE) (real_format_for_mode[(MODE) - MIN_MODE_FLOAT])
 
 /* Declare functions in real.c.  */
 
@@ -322,18 +333,23 @@ extern void real_ldexp (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int);
 
 /* **** End of software floating point emulator interface macros **** */
 
-/* Constant real values 0, 1, 2, -1, -2 and 0.5.  */
+/* Constant real values 0, 1, 2, 3, 10, -1, -2, 0.5 and 1/3.  */
 
 extern REAL_VALUE_TYPE dconst0;
 extern REAL_VALUE_TYPE dconst1;
 extern REAL_VALUE_TYPE dconst2;
+extern REAL_VALUE_TYPE dconst3;
+extern REAL_VALUE_TYPE dconst10;
 extern REAL_VALUE_TYPE dconstm1;
 extern REAL_VALUE_TYPE dconstm2;
 extern REAL_VALUE_TYPE dconsthalf;
+extern REAL_VALUE_TYPE dconstthird;
+extern REAL_VALUE_TYPE dconstpi;
+extern REAL_VALUE_TYPE dconste;
 
 /* Function to return a real value (not a tree node)
    from a given integer constant.  */
-REAL_VALUE_TYPE real_value_from_int_cst (union tree_node *, union tree_node *);
+REAL_VALUE_TYPE real_value_from_int_cst (tree, tree);
 
 /* Given a CONST_DOUBLE in FROM, store into TO the value it represents.  */
 #define REAL_VALUE_FROM_CONST_DOUBLE(to, from) \
@@ -365,5 +381,7 @@ extern void real_floor (REAL_VALUE_TYPE *, enum machine_mode,
 			const REAL_VALUE_TYPE *);
 extern void real_ceil (REAL_VALUE_TYPE *, enum machine_mode,
 		       const REAL_VALUE_TYPE *);
+extern void real_round (REAL_VALUE_TYPE *, enum machine_mode,
+			const REAL_VALUE_TYPE *);
 
 #endif /* ! GCC_REAL_H */