2010-10-26 Jerry DeLisle <jvdelisle@gcc.gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / machmode.def

diff --git a/gcc/machmode.def b/gcc/machmode.def
index 0b6c677..bb7ea99 100644 (file)
--- a/gcc/machmode.def
+++ b/gcc/machmode.def
@@ -1,13 +1,13 @@
 /* This file contains the definitions and documentation for the
    machine modes used in the GNU compiler.
 /* This file contains the definitions and documentation for the
    machine modes used in the GNU compiler.

-   Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000, 2003
-   Free Software Foundation, Inc.
+   Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000, 2003, 2004, 2005,
+   2007, 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
 
 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


@@ -16,9 +16,8 @@ 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 file defines all the MACHINE MODES used by GCC.
 
 
 /* This file defines all the MACHINE MODES used by GCC.


@@ -41,7 +40,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
    A CLASS argument must be one of the constants defined in
    mode-classes.def, less the leading MODE_ prefix; some statements
 
    A CLASS argument must be one of the constants defined in
    mode-classes.def, less the leading MODE_ prefix; some statements

-   that take CLASS arguments have restructions on which classes are
+   that take CLASS arguments have restrictions on which classes are

    acceptable.  For instance, INT.
 
    A MODE argument must be the printable name of a machine mode,
    acceptable.  For instance, INT.
 
    A MODE argument must be the printable name of a machine mode,


@@ -87,11 +86,33 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
        using floating point format FORMAT.
        All of the bits of its representation are significant.
 
        using floating point format FORMAT.
        All of the bits of its representation are significant.
 

+     DECIMAL FLOAT_MODE (MODE, BYTESIZE);
+       declares MODE to be of class DECIMAL_FLOAT and BYTESIZE bytes
+       wide.  All of the bits of its representation are significant.
+

      FRACTIONAL_FLOAT_MODE (MODE, PRECISION, BYTESIZE, FORMAT);
         declares MODE to be of class FLOAT, BYTESIZE bytes wide in
        storage, but with only PRECISION significant bits, using
        floating point format FORMAT.
 
      FRACTIONAL_FLOAT_MODE (MODE, PRECISION, BYTESIZE, FORMAT);
         declares MODE to be of class FLOAT, BYTESIZE bytes wide in
        storage, but with only PRECISION significant bits, using
        floating point format FORMAT.
 

+     FRACT_MODE (MODE, BYTESIZE, FBIT);
+       declares MODE to be of class FRACT and BYTESIZE bytes wide
+       with FBIT fractional bits.  There may be padding bits.
+
+     UFRACT_MODE (MODE, BYTESIZE, FBIT);
+       declares MODE to be of class UFRACT and BYTESIZE bytes wide
+       with FBIT fractional bits.  There may be padding bits.
+
+     ACCUM_MODE (MODE, BYTESIZE, IBIT, FBIT);
+       declares MODE to be of class ACCUM and BYTESIZE bytes wide
+       with IBIT integral bits and FBIT fractional bits.
+       There may be padding bits.
+
+     UACCUM_MODE (MODE, BYTESIZE, FBIT);
+       declares MODE to be of class UACCUM and BYTESIZE bytes wide
+       with IBIT integral bits and FBIT fractional bits.
+       There may be padding bits.
+

      RESET_FLOAT_FORMAT (MODE, FORMAT);
        changes the format of MODE, which must be class FLOAT,
        to FORMAT.  Use in an ARCH-modes.def to reset the format
      RESET_FLOAT_FORMAT (MODE, FORMAT);
        changes the format of MODE, which must be class FLOAT,
        to FORMAT.  Use in an ARCH-modes.def to reset the format


@@ -129,10 +150,12 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
      ADJUST_BYTESIZE (MODE, EXPR);
      ADJUST_ALIGNMENT (MODE, EXPR);
      ADJUST_FLOAT_FORMAT (MODE, EXPR);
      ADJUST_BYTESIZE (MODE, EXPR);
      ADJUST_ALIGNMENT (MODE, EXPR);
      ADJUST_FLOAT_FORMAT (MODE, EXPR);

-        Arrange for the byte size, alignment, or floating point format
-       of MODE to be adjustable at run time.  EXPR will be executed
+     ADJUST_IBIT (MODE, EXPR);
+     ADJUST_FBIT (MODE, EXPR);
+       Arrange for the byte size, alignment, floating point format, ibit,
+       or fbit of MODE to be adjustable at run time.  EXPR will be executed

        once after processing all command line options, and should
        once after processing all command line options, and should

-       evaluate to the desired byte size, alignment, or format.
+       evaluate to the desired byte size, alignment, format, ibit or fbit.

 
        Unlike a FORMAT argument, if you are adjusting a float format
        you must put an & in front of the name of each format structure.
 
        Unlike a FORMAT argument, if you are adjusting a float format
        you must put an & in front of the name of each format structure.


@@ -168,7 +191,7 @@ INT_MODE (TI, 16);
    that need 1-word, 2-word, 80-bit, or 128-bit float types respectively.
 
    These are the IEEE mappings.  They can be overridden with
    that need 1-word, 2-word, 80-bit, or 128-bit float types respectively.
 
    These are the IEEE mappings.  They can be overridden with

-   RESET_FLOAT_FORMAT or at runtime (in OVERRIDE_OPTIONS).  */
+   RESET_FLOAT_FORMAT or at runtime (in TARGET_OPTION_OVERRIDE).  */

 
 FLOAT_MODE (SF, 4, ieee_single_format);
 FLOAT_MODE (DF, 8, ieee_double_format);
 
 FLOAT_MODE (SF, 4, ieee_single_format);
 FLOAT_MODE (DF, 8, ieee_double_format);


@@ -177,6 +200,29 @@ FLOAT_MODE (DF, 8, ieee_double_format);
    FIXME define this only for targets that need it.  */
 CC_MODE (CC);
 
    FIXME define this only for targets that need it.  */
 CC_MODE (CC);
 

+/* Fixed-point modes.  */
+FRACT_MODE (QQ, 1, 7); /* s.7 */
+FRACT_MODE (HQ, 2, 15); /* s.15 */
+FRACT_MODE (SQ, 4, 31); /* s.31 */
+FRACT_MODE (DQ, 8, 63); /* s.63 */
+FRACT_MODE (TQ, 16, 127); /* s.127 */
+
+UFRACT_MODE (UQQ, 1, 8); /* .8 */
+UFRACT_MODE (UHQ, 2, 16); /* .16 */
+UFRACT_MODE (USQ, 4, 32); /* .32 */
+UFRACT_MODE (UDQ, 8, 64); /* .64 */
+UFRACT_MODE (UTQ, 16, 128); /* .128 */
+
+ACCUM_MODE (HA, 2, 8, 7); /* s8.7 */
+ACCUM_MODE (SA, 4, 16, 15); /* s16.15 */
+ACCUM_MODE (DA, 8, 32, 31); /* s32.31 */
+ACCUM_MODE (TA, 16, 64, 63); /* s64.63 */
+
+UACCUM_MODE (UHA, 2, 8, 8); /* 8.8 */
+UACCUM_MODE (USA, 4, 16, 16); /* 16.16 */
+UACCUM_MODE (UDA, 8, 32, 32); /* 32.32 */
+UACCUM_MODE (UTA, 16, 64, 64); /* 64.64 */
+

 /* Allow the target to specify additional modes of various kinds.  */
 #if HAVE_EXTRA_MODES
 # include EXTRA_MODES_FILE
 /* Allow the target to specify additional modes of various kinds.  */
 #if HAVE_EXTRA_MODES
 # include EXTRA_MODES_FILE


@@ -186,35 +232,10 @@ CC_MODE (CC);
 COMPLEX_MODES (INT);
 COMPLEX_MODES (FLOAT);
 
 COMPLEX_MODES (INT);
 COMPLEX_MODES (FLOAT);
 

-/* Vector modes.  */
-VECTOR_MODES (INT, 2);        /*                 V2QI */
-VECTOR_MODES (INT, 4);        /*            V4QI V2HI */
-VECTOR_MODES (INT, 8);        /*       V8QI V4HI V2SI */
-VECTOR_MODES (INT, 16);       /* V16QI V8HI V4SI V2DI */
-/* VECTOR_MODES (INT, 32);             V8SI V4DI      */
-/* VECTOR_MODES (INT, 64);             V8DI           */
-
-VECTOR_MODE (INT, SI, 8)
-VECTOR_MODE (INT, DI, 4);
-VECTOR_MODE (INT, DI, 8);
-
-/* PPC uses this to distinguish between DImode passed in
-   float registers and DImode passed in vector registers.
-   It would be in rs6000-modes.def but it's referenced in
-   c-common.c.  FIXME.  */
-
-VECTOR_MODE (INT, DI, 1);
-
-VECTOR_MODES (FLOAT, 4);      /*                 V2HF */
-VECTOR_MODES (FLOAT, 8);      /*            V4HF V2SF */
-VECTOR_MODES (FLOAT, 16);     /*       V8HF V4SF V2DF */
-/* VECTOR_MODES (FLOAT, 32);           V8SF V4DF      */
-/* VECTOR_MODES (FLOAT, 64);     V16SF V8DF           */
-
-VECTOR_MODE (FLOAT, SF, 8);
-VECTOR_MODE (FLOAT, SF, 16);
-VECTOR_MODE (FLOAT, DF, 4);
-VECTOR_MODE (FLOAT, DF, 8);
+/* Decimal floating point modes.  */
+DECIMAL_FLOAT_MODE (SD, 4, decimal_single_format);
+DECIMAL_FLOAT_MODE (DD, 8, decimal_double_format);
+DECIMAL_FLOAT_MODE (TD, 16, decimal_quad_format);

 
 /* The symbol Pmode stands for one of the above machine modes (usually SImode).
    The tm.h file specifies which one.  It is not a distinct mode.  */
 
 /* The symbol Pmode stands for one of the above machine modes (usually SImode).
    The tm.h file specifies which one.  It is not a distinct mode.  */