/* This file contains the definitions and documentation for the
machine modes used in the GNU compiler.
- Copyright (C) 1987, 1992, 1994, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC 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 version.
+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
+version.
-GNU CC 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.
+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 GNU CC; 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 COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
-/* This file defines all the MACHINE MODES used by GNU CC.
+/* This file defines all the MACHINE MODES used by GCC.
A machine mode specifies a size and format of data
at the machine level.
MODE_PARTIAL_INT - PQImode, PHImode, PSImode and PDImode
MODE_CC - modes used for representing the condition code in a register
MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT - complex number
+ MODE_VECTOR_INT, MODE_VECTOR_FLOAT - vector
MODE_RANDOM - anything else
- Fourth argument is the relative size of the object, in bytes.
+ Fourth argument is the relative size of the object, in bits,
+ so we can have modes smaller than 1 byte.
+
+ Fifth argument is the relative size of the object, in bytes.
It is zero when the size is meaningless or not determined.
A byte's size is determined by BITS_PER_UNIT in tm.h.
+ Sixth arg is the relative size of subunits of the object.
+ It is same as the fifth argument except for complexes and vectors,
+ since they are really made of many equal size subunits.
- Fifth arg is the relative size of subunits of the object.
- It is same as the fourth argument except for complexes,
- since they are really made of two equal size subunits.
-
- Sixth arg is next wider natural mode of the same class.
- 0 if there is none. */
+ Seventh arg is next wider natural mode of the same class. 0 if
+ there is none. Vector modes use this field to point to the next
+ vector size, so we can iterate through the different vectors modes.
+ The ordering is by increasing byte size, with QI coming before HI,
+ HI before SI, etc. */
/* VOIDmode is used when no mode needs to be specified,
as for example on CONST_INT RTL expressions. */
-DEF_MACHMODE (VOIDmode, "VOID", MODE_RANDOM, 0, 0, VOIDmode)
-
-DEF_MACHMODE (PQImode, "PQI", MODE_PARTIAL_INT, 1, 1, PHImode)
-DEF_MACHMODE (QImode, "QI", MODE_INT, 1, 1, HImode) /* int types */
-DEF_MACHMODE (PHImode, "PHI", MODE_PARTIAL_INT, 2, 2, PSImode)
-DEF_MACHMODE (HImode, "HI", MODE_INT, 2, 2, SImode)
-/* Pointers on some machines use this type to distinguish them from ints.
- Useful if a pointer is 4 bytes but has some bits that are not significant,
- so it is really not quite as wide as an integer. */
-DEF_MACHMODE (PSImode, "PSI", MODE_PARTIAL_INT, 4, 4, PDImode)
-DEF_MACHMODE (SImode, "SI", MODE_INT, 4, 4, DImode)
-DEF_MACHMODE (PDImode, "PDI", MODE_PARTIAL_INT, 8, 8, VOIDmode)
-DEF_MACHMODE (DImode, "DI", MODE_INT, 8, 8, TImode)
-DEF_MACHMODE (TImode, "TI", MODE_INT, 16, 16, OImode)
-DEF_MACHMODE (OImode, "OI", MODE_INT, 32, 32, VOIDmode)
-
-DEF_MACHMODE (QFmode, "QF", MODE_FLOAT, 1, 1, HFmode)
-DEF_MACHMODE (HFmode, "HF", MODE_FLOAT, 2, 2, TQFmode)
-DEF_MACHMODE (TQFmode, "TQF", MODE_FLOAT, 3, 3, SFmode) /* MIL-STD-1750A */
-DEF_MACHMODE (SFmode, "SF", MODE_FLOAT, 4, 4, DFmode)
-DEF_MACHMODE (DFmode, "DF", MODE_FLOAT, 8, 8, XFmode)
-DEF_MACHMODE (XFmode, "XF", MODE_FLOAT, 12, 12, TFmode) /* IEEE extended */
-DEF_MACHMODE (TFmode, "TF", MODE_FLOAT, 16, 16, VOIDmode)
+DEF_MACHMODE (VOIDmode, "VOID", MODE_RANDOM, 0, 0, 0, VOIDmode)
+
+DEF_MACHMODE (BImode, "BI", MODE_INT, 1, 1, 1, QImode)
+DEF_MACHMODE (QImode, "QI", MODE_INT, BITS_PER_UNIT, 1, 1, HImode)
+DEF_MACHMODE (HImode, "HI", MODE_INT, BITS_PER_UNIT*2, 2, 2, SImode)
+DEF_MACHMODE (SImode, "SI", MODE_INT, BITS_PER_UNIT*4, 4, 4, DImode)
+DEF_MACHMODE (DImode, "DI", MODE_INT, BITS_PER_UNIT*8, 8, 8, TImode)
+DEF_MACHMODE (TImode, "TI", MODE_INT, BITS_PER_UNIT*16, 16, 16, OImode)
+DEF_MACHMODE (OImode, "OI", MODE_INT, BITS_PER_UNIT*32, 32, 32, VOIDmode)
+
+/* Pointers on some machines use these types to distinguish them from
+ ints. Useful if a pointer is 4 bytes but has some bits that are
+ not significant, so it is really not quite as wide as an integer. */
+DEF_MACHMODE (PQImode, "PQI", MODE_PARTIAL_INT, BITS_PER_UNIT, 1, 1, PHImode)
+DEF_MACHMODE (PHImode, "PHI", MODE_PARTIAL_INT, BITS_PER_UNIT*2, 2, 2, PSImode)
+DEF_MACHMODE (PSImode, "PSI", MODE_PARTIAL_INT, BITS_PER_UNIT*4, 4, 4, PDImode)
+DEF_MACHMODE (PDImode, "PDI", MODE_PARTIAL_INT, BITS_PER_UNIT*8, 8, 8, VOIDmode)
+
+DEF_MACHMODE (QFmode, "QF", MODE_FLOAT, BITS_PER_UNIT, 1, 1, HFmode)
+DEF_MACHMODE (HFmode, "HF", MODE_FLOAT, BITS_PER_UNIT*2, 2, 2, TQFmode)
+DEF_MACHMODE (TQFmode, "TQF", MODE_FLOAT, BITS_PER_UNIT*3, 3, 3, SFmode) /* MIL-STD-1750A */
+DEF_MACHMODE (SFmode, "SF", MODE_FLOAT, BITS_PER_UNIT*4, 4, 4, DFmode)
+DEF_MACHMODE (DFmode, "DF", MODE_FLOAT, BITS_PER_UNIT*8, 8, 8, XFmode)
+DEF_MACHMODE (XFmode, "XF", MODE_FLOAT, BITS_PER_UNIT*12, 12, 12, TFmode) /* IEEE extended */
+DEF_MACHMODE (TFmode, "TF", MODE_FLOAT, BITS_PER_UNIT*16, 16, 16, VOIDmode)
/* Complex modes. */
-DEF_MACHMODE (QCmode, "QC", MODE_COMPLEX_FLOAT, 2, 1, HCmode)
-DEF_MACHMODE (HCmode, "HC", MODE_COMPLEX_FLOAT, 4, 2, SCmode)
-DEF_MACHMODE (SCmode, "SC", MODE_COMPLEX_FLOAT, 8, 4, DCmode)
-DEF_MACHMODE (DCmode, "DC", MODE_COMPLEX_FLOAT, 16, 8, XCmode)
-DEF_MACHMODE (XCmode, "XC", MODE_COMPLEX_FLOAT, 24, 12, TCmode)
-DEF_MACHMODE (TCmode, "TC", MODE_COMPLEX_FLOAT, 32, 16, VOIDmode)
-
-DEF_MACHMODE (CQImode, "CQI", MODE_COMPLEX_INT, 2, 1, CHImode)
-DEF_MACHMODE (CHImode, "CHI", MODE_COMPLEX_INT, 4, 2, CSImode)
-DEF_MACHMODE (CSImode, "CSI", MODE_COMPLEX_INT, 8, 4, CDImode)
-DEF_MACHMODE (CDImode, "CDI", MODE_COMPLEX_INT, 16, 8, CTImode)
-DEF_MACHMODE (CTImode, "CTI", MODE_COMPLEX_INT, 32, 16, COImode)
-DEF_MACHMODE (COImode, "COI", MODE_COMPLEX_INT, 64, 32, VOIDmode)
+DEF_MACHMODE (QCmode, "QC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*2, 2, 1, HCmode)
+DEF_MACHMODE (HCmode, "HC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*4, 4, 2, SCmode)
+DEF_MACHMODE (SCmode, "SC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*8, 8, 4, DCmode)
+DEF_MACHMODE (DCmode, "DC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*16, 16, 8, XCmode)
+DEF_MACHMODE (XCmode, "XC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*24, 24, 12, TCmode)
+DEF_MACHMODE (TCmode, "TC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*32, 32, 16, VOIDmode)
+
+DEF_MACHMODE (CQImode, "CQI", MODE_COMPLEX_INT, BITS_PER_UNIT*2, 2, 1, CHImode)
+DEF_MACHMODE (CHImode, "CHI", MODE_COMPLEX_INT, BITS_PER_UNIT*4, 4, 2, CSImode)
+DEF_MACHMODE (CSImode, "CSI", MODE_COMPLEX_INT, BITS_PER_UNIT*8, 8, 4, CDImode)
+DEF_MACHMODE (CDImode, "CDI", MODE_COMPLEX_INT, BITS_PER_UNIT*16, 16, 8, CTImode)
+DEF_MACHMODE (CTImode, "CTI", MODE_COMPLEX_INT, BITS_PER_UNIT*32, 32, 16, COImode)
+DEF_MACHMODE (COImode, "COI", MODE_COMPLEX_INT, BITS_PER_UNIT*64, 64, 32, VOIDmode)
+
+/* Vector modes. */
+/* There are no V1xx vector modes. These are equivalent to normal
+ scalar modes. */
+/* The wider mode field for vectors follows in order of increasing bit
+ size with QI coming before HI, HI before SI, and SI before DI
+ within same bit sizes. */
+DEF_MACHMODE (V2QImode, "V2QI", MODE_VECTOR_INT, BITS_PER_UNIT*2, 2, 1, V4QImode)
+DEF_MACHMODE (V2HImode, "V2HI", MODE_VECTOR_INT, BITS_PER_UNIT*4, 4, 2, V8QImode)
+DEF_MACHMODE (V2SImode, "V2SI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 4, V16QImode)
+DEF_MACHMODE (V2DImode, "V2DI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 8, V8SImode)
+
+DEF_MACHMODE (V4QImode, "V4QI", MODE_VECTOR_INT, BITS_PER_UNIT*4, 4, 1, V2HImode)
+DEF_MACHMODE (V4HImode, "V4HI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 2, V2SImode)
+DEF_MACHMODE (V4SImode, "V4SI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 4, V2DImode)
+DEF_MACHMODE (V4DImode, "V4DI", MODE_VECTOR_INT, BITS_PER_UNIT*32, 32, 8, V8DImode)
+
+DEF_MACHMODE (V8QImode, "V8QI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 1, V4HImode)
+DEF_MACHMODE (V8HImode, "V8HI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 2, V4SImode)
+DEF_MACHMODE (V8SImode, "V8SI", MODE_VECTOR_INT, BITS_PER_UNIT*32, 32, 4, V4DImode)
+DEF_MACHMODE (V8DImode, "V8DI", MODE_VECTOR_INT, BITS_PER_UNIT*64, 64, 8, VOIDmode)
+
+DEF_MACHMODE (V16QImode, "V16QI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 1, V8HImode)
+
+DEF_MACHMODE (V2SFmode, "V2SF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*8, 8, 4, V4SFmode)
+DEF_MACHMODE (V2DFmode, "V2DF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*16, 16, 8, V8SFmode)
+
+DEF_MACHMODE (V4SFmode, "V4SF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*16, 16, 4, V2DFmode)
+DEF_MACHMODE (V4DFmode, "V4DF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*32, 32, 8, V8DFmode)
+
+DEF_MACHMODE (V8SFmode, "V8SF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*32, 32, 4,V4DFmode)
+DEF_MACHMODE (V8DFmode, "V8DF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*64, 64, 8, VOIDmode)
/* BLKmode is used for structures, arrays, etc.
that fit no more specific mode. */
-DEF_MACHMODE (BLKmode, "BLK", MODE_RANDOM, 0, 0, VOIDmode)
+DEF_MACHMODE (BLKmode, "BLK", MODE_RANDOM, 0, 0, 0, VOIDmode)
+
+/* The modes for representing the condition codes come last. CCmode
+ is always defined. Additional modes for the condition code can be
+ specified in the EXTRA_CC_MODES macro. All MODE_CC modes are the
+ same width as SImode and have VOIDmode as their next wider mode. */
+
+#define CC(E, M) DEF_MACHMODE (E, M, MODE_CC, BITS_PER_UNIT*4, 4, 4, VOIDmode)
+
+CC (CCmode, "CC")
-/* The modes for representing the condition codes come last. CCmode is
- always defined. Additional modes for the condition code can be specified
- in the EXTRA_CC_MODES macro. Everything but the names of the modes
- are copied from CCmode. For these modes, GET_MODE_WIDER_MODE points
- to the next defined CC mode, if any. */
+#ifdef EXTRA_CC_MODES
+EXTRA_CC_MODES
+#endif
-DEF_MACHMODE (CCmode, "CC", MODE_CC, 4, 4, VOIDmode)
+#undef CC
/* The symbol Pmode stands for one of the above machine modes (usually SImode).
- The tm file specifies which one. It is not a distinct mode. */
+ The tm file specifies which one. It is not a distinct mode. Nevertheless,
+ while processing the md file, we wish to treat as a distinct mode so that
+ it is preserved intact through to the insn-foo.c files. This eliminates a
+ lot of redundancy in ports that support both 32-bit and 64-bit targets. */
+#ifdef GENERATOR_FILE
+#undef Pmode
+DEF_MACHMODE (Pmode, "P", MODE_RANDOM, 0, 0, 0, VOIDmode)
+#endif
/*
Local variables:
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