1991-05-31 22:43:32 +02:00
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/* This file contains the definitions and documentation for the
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1998-05-06 23:09:07 +02:00
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machine modes used in the GNU compiler.
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1998-04-04 15:32:39 +02:00
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Copyright (C) 1987, 1992, 1994, 1997, 1998 Free Software Foundation, Inc.
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1991-05-31 22:43:32 +02:00
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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1995-06-15 13:52:21 +02:00
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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1991-05-31 22:43:32 +02:00
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/* This file defines all the MACHINE MODES used by GNU CC.
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A machine mode specifies a size and format of data
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at the machine level.
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Each RTL expression has a machine mode.
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At the syntax tree level, each ..._TYPE and each ..._DECL node
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has a machine mode which describes data of that type or the
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data of the variable declared. */
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/* The first argument is the internal name of the machine mode
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used in the C source.
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By convention these are in UPPER_CASE, except for the word "mode".
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The second argument is the name of the machine mode in the
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external ASCII format used for reading and printing RTL and trees.
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By convention these names in UPPER_CASE.
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Third argument states the kind of representation:
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MODE_INT - integer
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MODE_FLOAT - floating
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1998-04-04 15:32:39 +02:00
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MODE_PARTIAL_INT - PQImode, PHImode, PSImode and PDImode
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1991-05-31 22:43:32 +02:00
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MODE_CC - modes used for representing the condition code in a register
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MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT - complex number
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2000-06-24 13:12:58 +02:00
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MODE_VECTOR_INT, MODE_VECTOR_FLOAT - vector
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1991-05-31 22:43:32 +02:00
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MODE_RANDOM - anything else
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Fourth argument is the relative size of the object, in bytes.
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It is zero when the size is meaningless or not determined.
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A byte's size is determined by BITS_PER_UNIT in tm.h.
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Fifth arg is the relative size of subunits of the object.
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It is same as the fourth argument except for complexes,
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since they are really made of two equal size subunits.
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Sixth arg is next wider natural mode of the same class.
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0 if there is none. */
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/* VOIDmode is used when no mode needs to be specified,
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as for example on CONST_INT RTL expressions. */
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DEF_MACHMODE (VOIDmode, "VOID", MODE_RANDOM, 0, 0, VOIDmode)
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1998-04-04 15:32:39 +02:00
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DEF_MACHMODE (PQImode, "PQI", MODE_PARTIAL_INT, 1, 1, PHImode)
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1991-05-31 22:43:32 +02:00
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DEF_MACHMODE (QImode, "QI", MODE_INT, 1, 1, HImode) /* int types */
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1998-04-04 15:32:39 +02:00
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DEF_MACHMODE (PHImode, "PHI", MODE_PARTIAL_INT, 2, 2, PSImode)
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1991-05-31 22:43:32 +02:00
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DEF_MACHMODE (HImode, "HI", MODE_INT, 2, 2, SImode)
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/* Pointers on some machines use this type to distinguish them from ints.
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Useful if a pointer is 4 bytes but has some bits that are not significant,
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so it is really not quite as wide as an integer. */
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1994-09-29 00:32:26 +01:00
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DEF_MACHMODE (PSImode, "PSI", MODE_PARTIAL_INT, 4, 4, PDImode)
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1991-05-31 22:43:32 +02:00
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DEF_MACHMODE (SImode, "SI", MODE_INT, 4, 4, DImode)
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DEF_MACHMODE (PDImode, "PDI", MODE_PARTIAL_INT, 8, 8, VOIDmode)
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DEF_MACHMODE (DImode, "DI", MODE_INT, 8, 8, TImode)
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1993-02-26 23:07:01 +01:00
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DEF_MACHMODE (TImode, "TI", MODE_INT, 16, 16, OImode)
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DEF_MACHMODE (OImode, "OI", MODE_INT, 32, 32, VOIDmode)
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1991-05-31 22:43:32 +02:00
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1993-01-06 23:41:12 +01:00
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DEF_MACHMODE (QFmode, "QF", MODE_FLOAT, 1, 1, HFmode)
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1994-07-12 01:26:40 +02:00
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DEF_MACHMODE (HFmode, "HF", MODE_FLOAT, 2, 2, TQFmode)
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DEF_MACHMODE (TQFmode, "TQF", MODE_FLOAT, 3, 3, SFmode) /* MIL-STD-1750A */
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1991-05-31 22:43:32 +02:00
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DEF_MACHMODE (SFmode, "SF", MODE_FLOAT, 4, 4, DFmode)
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DEF_MACHMODE (DFmode, "DF", MODE_FLOAT, 8, 8, XFmode)
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DEF_MACHMODE (XFmode, "XF", MODE_FLOAT, 12, 12, TFmode) /* IEEE extended */
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DEF_MACHMODE (TFmode, "TF", MODE_FLOAT, 16, 16, VOIDmode)
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1993-03-04 20:43:38 +01:00
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/* Complex modes. */
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1998-04-03 18:37:26 +02:00
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DEF_MACHMODE (QCmode, "QC", MODE_COMPLEX_FLOAT, 2, 1, HCmode)
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DEF_MACHMODE (HCmode, "HC", MODE_COMPLEX_FLOAT, 4, 2, SCmode)
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1991-05-31 22:43:32 +02:00
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DEF_MACHMODE (SCmode, "SC", MODE_COMPLEX_FLOAT, 8, 4, DCmode)
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DEF_MACHMODE (DCmode, "DC", MODE_COMPLEX_FLOAT, 16, 8, XCmode)
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DEF_MACHMODE (XCmode, "XC", MODE_COMPLEX_FLOAT, 24, 12, TCmode)
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DEF_MACHMODE (TCmode, "TC", MODE_COMPLEX_FLOAT, 32, 16, VOIDmode)
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1993-03-04 20:43:38 +01:00
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DEF_MACHMODE (CQImode, "CQI", MODE_COMPLEX_INT, 2, 1, CHImode)
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DEF_MACHMODE (CHImode, "CHI", MODE_COMPLEX_INT, 4, 2, CSImode)
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DEF_MACHMODE (CSImode, "CSI", MODE_COMPLEX_INT, 8, 4, CDImode)
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DEF_MACHMODE (CDImode, "CDI", MODE_COMPLEX_INT, 16, 8, CTImode)
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DEF_MACHMODE (CTImode, "CTI", MODE_COMPLEX_INT, 32, 16, COImode)
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DEF_MACHMODE (COImode, "COI", MODE_COMPLEX_INT, 64, 32, VOIDmode)
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2000-06-24 13:12:58 +02:00
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/* Vector modes. */
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/* There are no V1xx vector modes. These are equivalent to normal non-vector
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modes. */
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DEF_MACHMODE (V2QImode, "V2QI", MODE_VECTOR_INT, 2, 1, VOIDmode)
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DEF_MACHMODE (V2HImode, "V2HI", MODE_VECTOR_INT, 4, 2, VOIDmode)
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DEF_MACHMODE (V2SImode, "V2SI", MODE_VECTOR_INT, 8, 4, VOIDmode)
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DEF_MACHMODE (V2DImode, "V2DI", MODE_VECTOR_INT, 16, 8, VOIDmode)
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DEF_MACHMODE (V4QImode, "V4QI", MODE_VECTOR_INT, 4, 1, VOIDmode)
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DEF_MACHMODE (V4HImode, "V4HI", MODE_VECTOR_INT, 8, 2, VOIDmode)
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DEF_MACHMODE (V4SImode, "V4SI", MODE_VECTOR_INT, 16, 4, VOIDmode)
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DEF_MACHMODE (V4DImode, "V4DI", MODE_VECTOR_INT, 32, 8, VOIDmode)
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DEF_MACHMODE (V8QImode, "V8QI", MODE_VECTOR_INT, 8, 1, VOIDmode)
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DEF_MACHMODE (V8HImode, "V8HI", MODE_VECTOR_INT, 16, 2, VOIDmode)
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DEF_MACHMODE (V8SImode, "V8SI", MODE_VECTOR_INT, 32, 4, VOIDmode)
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DEF_MACHMODE (V8DImode, "V8DI", MODE_VECTOR_INT, 64, 8, VOIDmode)
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DEF_MACHMODE (V2SFmode, "V2SF", MODE_VECTOR_FLOAT, 8, 4, VOIDmode)
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DEF_MACHMODE (V2DFmode, "V2DF", MODE_VECTOR_FLOAT, 16, 8, VOIDmode)
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DEF_MACHMODE (V4SFmode, "V4SF", MODE_VECTOR_FLOAT, 16, 4, VOIDmode)
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DEF_MACHMODE (V4DFmode, "V4DF", MODE_VECTOR_FLOAT, 32, 8, VOIDmode)
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DEF_MACHMODE (V8SFmode, "V8SF", MODE_VECTOR_FLOAT, 32, 4, VOIDmode)
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DEF_MACHMODE (V8DFmode, "V8DF", MODE_VECTOR_FLOAT, 64, 8, VOIDmode)
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1991-05-31 22:43:32 +02:00
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/* BLKmode is used for structures, arrays, etc.
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that fit no more specific mode. */
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DEF_MACHMODE (BLKmode, "BLK", MODE_RANDOM, 0, 0, VOIDmode)
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/* The modes for representing the condition codes come last. CCmode is
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always defined. Additional modes for the condition code can be specified
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rtl.c: Define CONST_DOUBLE_FORMAT to the appropriate format for a CONST_DOUBLE...
1999-08-27 13:27 -0700 Zack Weinberg <zack@bitmover.com>
* rtl.c: Define CONST_DOUBLE_FORMAT to the appropriate format
for a CONST_DOUBLE, at compile time. Initialize rtx_length
and class_narrowest_mode at compile time. Kill init_rtl.
Mark rtx_length, mode_class, mode_size, mode_unit_size,
mode_wider_mode, mode_mask_array, class_narrowest_mode, and
rtx_format as const. Kill all references to EXTRA_CC_MODES or
EXTRA_CC_NAMES.
* rtl.def (CONST_DOUBLE): Use CONST_DOUBLE_FORMAT macro for
format.
* rtl.h: Declare rtx_length and rtx_format as const.
* machmode.def: Define CC(). Use CC() to define CCmode. If
EXTRA_CC_MODES is defined, expand it here.
* machmode.h: Declare mode_class, mode_size, mode_unit_size,
mode_wider_mode, mode_mask_array, and class_narrowest_mode as
const. Kill all references to EXTRA_CC_MODES.
* toplev.c: Don't prototype or call init_rtl.
* optabs.c: Don't call init_mov_optab.
* genemit.c: Don't generate init_mov_optab. Don't call
init_rtl.
* gengenrtl.c: Duplicate calculation of CONST_DOUBLE_FORMAT
here.
* genattr.c, genattrtab.c, gencodes.c, genconfig.c,
genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c,
genrecog.c: Don't call init_rtl.
* arc.h, arm.h, c4x.h, i386.h, i960.h, m88k.h, pa.h, pdp11.h,
rs6000.h, sparc.h: Don't define EXTRA_CC_NAMES. Use CC() in
definition of EXTRA_CC_MODES.
* md.texi: Kill ref to EXTRA_CC_NAMES.
* tm.texi: Document new way to define EXTRA_CC_MODES.
* genrecog.c: Do not look up the name of a define_split.
(Unrelated bugfix.)
From-SVN: r28937
1999-08-27 22:37:06 +02:00
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in the EXTRA_CC_MODES macro.
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All MODE_CC modes are the same width as SImode and have VOIDmode as their
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next wider mode.
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*/
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#define CC(E, M) DEF_MACHMODE (E, M, MODE_CC, 4, 4, VOIDmode)
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CC (CCmode, "CC")
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#ifdef EXTRA_CC_MODES
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EXTRA_CC_MODES
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#endif
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1991-05-31 22:43:32 +02:00
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rtl.c: Define CONST_DOUBLE_FORMAT to the appropriate format for a CONST_DOUBLE...
1999-08-27 13:27 -0700 Zack Weinberg <zack@bitmover.com>
* rtl.c: Define CONST_DOUBLE_FORMAT to the appropriate format
for a CONST_DOUBLE, at compile time. Initialize rtx_length
and class_narrowest_mode at compile time. Kill init_rtl.
Mark rtx_length, mode_class, mode_size, mode_unit_size,
mode_wider_mode, mode_mask_array, class_narrowest_mode, and
rtx_format as const. Kill all references to EXTRA_CC_MODES or
EXTRA_CC_NAMES.
* rtl.def (CONST_DOUBLE): Use CONST_DOUBLE_FORMAT macro for
format.
* rtl.h: Declare rtx_length and rtx_format as const.
* machmode.def: Define CC(). Use CC() to define CCmode. If
EXTRA_CC_MODES is defined, expand it here.
* machmode.h: Declare mode_class, mode_size, mode_unit_size,
mode_wider_mode, mode_mask_array, and class_narrowest_mode as
const. Kill all references to EXTRA_CC_MODES.
* toplev.c: Don't prototype or call init_rtl.
* optabs.c: Don't call init_mov_optab.
* genemit.c: Don't generate init_mov_optab. Don't call
init_rtl.
* gengenrtl.c: Duplicate calculation of CONST_DOUBLE_FORMAT
here.
* genattr.c, genattrtab.c, gencodes.c, genconfig.c,
genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c,
genrecog.c: Don't call init_rtl.
* arc.h, arm.h, c4x.h, i386.h, i960.h, m88k.h, pa.h, pdp11.h,
rs6000.h, sparc.h: Don't define EXTRA_CC_NAMES. Use CC() in
definition of EXTRA_CC_MODES.
* md.texi: Kill ref to EXTRA_CC_NAMES.
* tm.texi: Document new way to define EXTRA_CC_MODES.
* genrecog.c: Do not look up the name of a define_split.
(Unrelated bugfix.)
From-SVN: r28937
1999-08-27 22:37:06 +02:00
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#undef CC
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1991-05-31 22:43:32 +02:00
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/* The symbol Pmode stands for one of the above machine modes (usually SImode).
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The tm file specifies which one. It is not a distinct mode. */
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/*
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Local variables:
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mode:c
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version-control: t
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End:
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*/
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