diff options
author | zack <zack@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-10-10 20:33:07 +0000 |
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committer | zack <zack@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-10-10 20:33:07 +0000 |
commit | 47a2c1d448f2578c0d9d1bd6be4a17e95d279870 (patch) | |
tree | f9be992652ecd68b01a301007bfe03ceccd94dc6 /gcc/machmode.def | |
parent | 18ee3f27ba9cc3c48b390db1d052618c0f393513 (diff) | |
download | gcc-47a2c1d448f2578c0d9d1bd6be4a17e95d279870.tar.gz |
* genmodes.c, mode-classes.def: New files.
* machmode.def: Rewritten to genmodes.c interface.
* Makefile.in (extra_modes_file): New substitution variable.
(MACHMODE_H): No longer includes machmode.def or
@extra_modes_file@; instead, mode-classes.def and insn-modes.h.
(BUILD_RTL): Add $(BUILD_PREFIX)insn-modes.o.
(OBJS-common): Add insn-modes.o.
(STAGESTUFF): Add insn-modes.c, insn-modes.h, s-modes, and
genmodes$(build_exeext).
(insn-modes.o, insn-modes.c, insn-modes.h, s-modes, genmodes.o,
genmodes$(build_exeext), $(BUILD_PREFIX_1)insn-modes.o): New targets.
(s-genrtl): Don't depend on $(RTL_BASE_H).
(gengenrtl.o): Don't depend on coretypes.h, $(GTM_H), real.h,
or $(RTL_BASE_H); just rtl.def.
* gengenrtl.c: Don't include coretypes.h, tm.h, rtl.h, or
real.h. Give fake definition of CONST_DOUBLE_FORMAT and
substitute definition of NUM_RTX_CODE. Add casts to avoid
warnings.
* machmode.h: Include insn-modes.h, not machmode.def. Include
mode-classes.def to define enum mode_class. Tweak definitions
of GET_MODE_CLASS, GET_MODE_SIZE, GET_MODE_BITSIZE, GET_MODE_MASK,
GET_MODE_INNER, GET_MODE_WIDER_MODE, GET_CLASS_NARROWEST_MODE.
(inner_mode_array): Renamed mode_inner.
(mode_base_align): New.
* rtl.c (mode_name, mode_class, mode_bitsize, mode_size,
mode_unit_size, mode_wider_mode, mode_mask_array,
inner_mode_array, class_narrowest_mode): Delete definitions.
* stor-layout.c (get_mode_alignment): Use mode_base_align.
* real.h: Use MIN_MODE_FLOAT and MAX_MODE_FLOAT, not QFmode
and TFmode, in real_format_for_mode and REAL_MODE_FORMAT.
* config/ip2k/ip2k.h, config/iq2000/iq2000.h:
No need to define BITS_PER_UNIT.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@72313 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/machmode.def')
-rw-r--r-- | gcc/machmode.def | 273 |
1 files changed, 147 insertions, 126 deletions
diff --git a/gcc/machmode.def b/gcc/machmode.def index 8555a6ee58d..8688f8ad029 100644 --- a/gcc/machmode.def +++ b/gcc/machmode.def @@ -1,6 +1,7 @@ /* This file contains the definitions and documentation for the machine modes used in the GNU compiler. - Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000 Free Software Foundation, Inc. + Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000, 2003 + Free Software Foundation, Inc. This file is part of GCC. @@ -31,145 +32,165 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA has a machine mode which describes data of that type or the data of the variable declared. */ -/* The first argument is the internal name of the machine mode - used in the C source. - By convention these are in UPPER_CASE, except for the word "mode". - - The second argument is the name of the machine mode in the - external ASCII format used for reading and printing RTL and trees. - By convention these names in UPPER_CASE. - - Third argument states the kind of representation: - MODE_INT - integer - MODE_FLOAT - floating - 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 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. - - 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. - - Eigth arg is the mode of the internal elements in a vector or - complex, and VOIDmode if not applicable. -*/ +/* This file is included by the genmodes program. Its text is the + body of a function. Do not rely on this, it will change in the + future. + + The following statements can be used in this file -- all have + the form of a C macro call. In their arguments: + + 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 + acceptable. For instance, INT. + + A MODE argument must be the printable name of a machine mode, + without quotation marks or trailing "mode". For instance, SI. + + A BITSIZE, BYTESIZE, or COUNT argument must be a positive integer + constant. + + Order matters in this file in so far as statements which refer to + other modes must appear after the modes they refer to. However, + statements which do not refer to other modes may appear in any + order. + + RANDOM_MODE (MODE); + declares MODE to be of class RANDOM. + + CC_MODE (MODE); + declares MODE to be of class CC. + + INT_MODE (MODE, BYTESIZE); + declares MODE to be of class INT and BYTESIZE bytes wide. + All of the bits of its representation are significant. + + FRACTIONAL_INT_MODE (MODE, BITSIZE, BYTESIZE); + declares MODE to be of class INT, BYTESIZE bytes wide in + storage, but with only BITSIZE significant bits. + + FLOAT_MODE (MODE, BYTESIZE); + declares MODE to be of class FLOAT and BYTESIZE bytes wide. + All of the bits of its representation are significant. + + FRACTIONAL_FLOAT_MODE (MODE, BITSIZE, BYTESIZE); + declares MODE to be of class FLOAT, BYTESIZE bytes wide in + storage, but with only BITSIZE significant bits. + + PARTIAL_INT_MODE (MODE); + declares a mode of class PARTIAL_INT with the same size as + MODE (which must be an INT mode). The name of the new mode + is made by prefixing a P to the name MODE. This statement + may grow a BITSIZE argument in the future. + + VECTOR_MODE (CLASS, MODE, COUNT); + Declare a vector mode whose component mode is MODE (of class + CLASS) with COUNT components. CLASS must be INT or FLOAT. + The name of the vector mode takes the form VnX where n is + COUNT in decimal and X is MODE. + + VECTOR_MODES (CLASS, WIDTH); + For all modes presently declared in class CLASS, construct + corresponding vector modes having width WIDTH. Modes whose + byte sizes do not evenly divide WIDTH are ignored, as are + modes that would produce vector modes with only one component, + and modes smaller than one byte (if CLASS is INT) or smaller + than two bytes (if CLASS is FLOAT). CLASS must be INT or + FLOAT. The names follow the same rule as VECTOR_MODE uses. + + COMPLEX_MODES (CLASS); + For all modes presently declared in class CLASS, construct + corresponding complex modes. Modes smaller than one byte + are ignored. For FLOAT modes, the names are derived by + replacing the 'F' in the mode name with a 'C'. (It is an + error if there is no 'F'. For INT modes, the names are + derived by prefixing a C to the name. + + BITS_PER_UNIT (COUNT); + Sets the number of bits in a machine byte (least addressable + unit). If this statement does not appear, the default is 8. + + Note: If a mode is ever made which is more than 255 bytes wide, + machmode.h and genmodes.c will have to be changed to allocate + more space for the mode_size and mode_alignment arrays. */ /* 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, 0, VOIDmode, VOIDmode) +RANDOM_MODE (VOID); + +/* BLKmode is used for structures, arrays, etc. + that fit no more specific mode. */ +RANDOM_MODE (BLK); + +/* Single bit mode used for booleans. */ +FRACTIONAL_INT_MODE (BI, 1, 1); -DEF_MACHMODE (BImode, "BI", MODE_INT, 1, 1, 1, QImode, VOIDmode) -DEF_MACHMODE (QImode, "QI", MODE_INT, BITS_PER_UNIT, 1, 1, HImode, VOIDmode) -DEF_MACHMODE (HImode, "HI", MODE_INT, BITS_PER_UNIT*2, 2, 2, SImode, VOIDmode) -DEF_MACHMODE (SImode, "SI", MODE_INT, BITS_PER_UNIT*4, 4, 4, DImode, VOIDmode) -DEF_MACHMODE (DImode, "DI", MODE_INT, BITS_PER_UNIT*8, 8, 8, TImode, VOIDmode) -DEF_MACHMODE (TImode, "TI", MODE_INT, BITS_PER_UNIT*16, 16, 16, OImode, VOIDmode) -DEF_MACHMODE (OImode, "OI", MODE_INT, BITS_PER_UNIT*32, 32, 32, VOIDmode, VOIDmode) +/* Basic integer modes. */ +INT_MODE (QI, 1); +INT_MODE (HI, 2); +INT_MODE (SI, 4); +INT_MODE (DI, 8); +INT_MODE (TI, 16); +INT_MODE (OI, 32); /* 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, VOIDmode) -DEF_MACHMODE (PHImode, "PHI", MODE_PARTIAL_INT, BITS_PER_UNIT*2, 2, 2, PSImode, VOIDmode) -DEF_MACHMODE (PSImode, "PSI", MODE_PARTIAL_INT, BITS_PER_UNIT*4, 4, 4, PDImode, VOIDmode) -DEF_MACHMODE (PDImode, "PDI", MODE_PARTIAL_INT, BITS_PER_UNIT*8, 8, 8, VOIDmode, VOIDmode) - -DEF_MACHMODE (QFmode, "QF", MODE_FLOAT, BITS_PER_UNIT, 1, 1, HFmode, VOIDmode) -DEF_MACHMODE (HFmode, "HF", MODE_FLOAT, BITS_PER_UNIT*2, 2, 2, TQFmode, VOIDmode) -DEF_MACHMODE (TQFmode, "TQF", MODE_FLOAT, BITS_PER_UNIT*3, 3, 3, SFmode, VOIDmode) /* MIL-STD-1750A */ -DEF_MACHMODE (SFmode, "SF", MODE_FLOAT, BITS_PER_UNIT*4, 4, 4, DFmode, VOIDmode) -DEF_MACHMODE (DFmode, "DF", MODE_FLOAT, BITS_PER_UNIT*8, 8, 8, XFmode, VOIDmode) -DEF_MACHMODE (XFmode, "XF", MODE_FLOAT, BITS_PER_UNIT*12, 12, 12, TFmode, VOIDmode) /* IEEE extended */ -DEF_MACHMODE (TFmode, "TF", MODE_FLOAT, BITS_PER_UNIT*16, 16, 16, VOIDmode, VOIDmode) +PARTIAL_INT_MODE (QI); +PARTIAL_INT_MODE (HI); +PARTIAL_INT_MODE (SI); +PARTIAL_INT_MODE (DI); + +/* Basic floating point modes. */ +FLOAT_MODE (QF, 1); /* C4x single precision */ +FLOAT_MODE (HF, 2); /* C4x double precision */ +FLOAT_MODE (TQF, 3); /* MIL-STD-1750a */ +FLOAT_MODE (SF, 4); +FLOAT_MODE (DF, 8); +FLOAT_MODE (XF, 12); /* IEEE extended (80-bit) */ +FLOAT_MODE (TF, 16); + +/* Basic CC modes. */ +CC_MODE (CC); + +/* Allow the target to specify additional modes of various kinds. */ +#if HAVE_EXTRA_MODES +# define CC(X) CC_MODE(X); /* backward compatibility, temporary */ +# include EXTRA_MODES_FILE +# undef CC +#endif /* Complex modes. */ -DEF_MACHMODE (QCmode, "QC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*2, 2, 1, HCmode, QFmode) -DEF_MACHMODE (HCmode, "HC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*4, 4, 2, SCmode, HFmode) -DEF_MACHMODE (SCmode, "SC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*8, 8, 4, DCmode, SFmode) -DEF_MACHMODE (DCmode, "DC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*16, 16, 8, XCmode, DFmode) -DEF_MACHMODE (XCmode, "XC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*24, 24, 12, TCmode, XFmode) -DEF_MACHMODE (TCmode, "TC", MODE_COMPLEX_FLOAT, BITS_PER_UNIT*32, 32, 16, VOIDmode, TFmode) - -DEF_MACHMODE (CQImode, "CQI", MODE_COMPLEX_INT, BITS_PER_UNIT*2, 2, 1, CHImode, QImode) -DEF_MACHMODE (CHImode, "CHI", MODE_COMPLEX_INT, BITS_PER_UNIT*4, 4, 2, CSImode, HImode) -DEF_MACHMODE (CSImode, "CSI", MODE_COMPLEX_INT, BITS_PER_UNIT*8, 8, 4, CDImode, SImode) -DEF_MACHMODE (CDImode, "CDI", MODE_COMPLEX_INT, BITS_PER_UNIT*16, 16, 8, CTImode, DImode) -DEF_MACHMODE (CTImode, "CTI", MODE_COMPLEX_INT, BITS_PER_UNIT*32, 32, 16, COImode, TImode) -DEF_MACHMODE (COImode, "COI", MODE_COMPLEX_INT, BITS_PER_UNIT*64, 64, 32, VOIDmode, OImode) +COMPLEX_MODES (INT); +COMPLEX_MODES (FLOAT); /* Vector 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 (V1DImode, "V1DI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 8, V2QImode, DImode) -DEF_MACHMODE (V2QImode, "V2QI", MODE_VECTOR_INT, BITS_PER_UNIT*2, 2, 1, V4QImode, QImode) -DEF_MACHMODE (V2HImode, "V2HI", MODE_VECTOR_INT, BITS_PER_UNIT*4, 4, 2, V8QImode, HImode) -DEF_MACHMODE (V2SImode, "V2SI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 4, V16QImode, SImode) -DEF_MACHMODE (V2DImode, "V2DI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 8, V8SImode, DImode) - -DEF_MACHMODE (V4QImode, "V4QI", MODE_VECTOR_INT, BITS_PER_UNIT*4, 4, 1, V2HImode, QImode) -DEF_MACHMODE (V4HImode, "V4HI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 2, V2SImode, HImode) -DEF_MACHMODE (V4SImode, "V4SI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 4, V2DImode, SImode) -DEF_MACHMODE (V4DImode, "V4DI", MODE_VECTOR_INT, BITS_PER_UNIT*32, 32, 8, V8DImode, DImode) - -DEF_MACHMODE (V8QImode, "V8QI", MODE_VECTOR_INT, BITS_PER_UNIT*8, 8, 1, V4HImode, QImode) -DEF_MACHMODE (V8HImode, "V8HI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 2, V4SImode, HImode) -DEF_MACHMODE (V8SImode, "V8SI", MODE_VECTOR_INT, BITS_PER_UNIT*32, 32, 4, V4DImode, SImode) -DEF_MACHMODE (V8DImode, "V8DI", MODE_VECTOR_INT, BITS_PER_UNIT*64, 64, 8, VOIDmode, DImode) - -DEF_MACHMODE (V16QImode, "V16QI", MODE_VECTOR_INT, BITS_PER_UNIT*16, 16, 1, V8HImode, QImode) - -DEF_MACHMODE (V2HFmode, "V2HF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*4, 4, 2, V4HFmode, HFmode) -DEF_MACHMODE (V2SFmode, "V2SF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*8, 8, 4, V4SFmode, SFmode) -DEF_MACHMODE (V2DFmode, "V2DF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*16, 16, 8, V8SFmode, DFmode) - -DEF_MACHMODE (V4HFmode, "V4HF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*8, 8, 2, V2SFmode, HFmode) -DEF_MACHMODE (V4SFmode, "V4SF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*16, 16, 4, V2DFmode, SFmode) -DEF_MACHMODE (V4DFmode, "V4DF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*32, 32, 8, V8DFmode, DFmode) - -DEF_MACHMODE (V8HFmode, "V8HF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*16, 16, 2, V4SFmode, HFmode) -DEF_MACHMODE (V8SFmode, "V8SF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*32, 32, 4, V4DFmode, SFmode) -DEF_MACHMODE (V8DFmode, "V8DF", MODE_VECTOR_FLOAT, BITS_PER_UNIT*64, 64, 8, VOIDmode, DFmode) -DEF_MACHMODE (V16SFmode, "V16SF", MODE_VECTOR_FLOAT, 512, 64, 4, VOIDmode, SFmode) - -/* BLKmode is used for structures, arrays, etc. - that fit no more specific mode. */ -DEF_MACHMODE (BLKmode, "BLK", MODE_RANDOM, 0, 0, 0, VOIDmode, 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 header. All MODE_CC modes are the - same width as SImode and have VOIDmode as their next wider mode. */ - -/* We do not use CC() for CCmode to avoid a warning about use of - function-like macros with no arguments. */ -DEF_MACHMODE (CCmode, "CC", MODE_CC, BITS_PER_UNIT*4, 4, 4, VOIDmode, VOIDmode) - -#ifdef EXTRA_MODES_FILE -#define CC(N) \ - DEF_MACHMODE (N##mode, #N, \ - MODE_CC, BITS_PER_UNIT*4, 4, 4, VOIDmode, VOIDmode) -#include EXTRA_MODES_FILE -#undef CC -#endif +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); + +VECTOR_MODE (INT, DI, 1); /* PPC uses this. Why not plain DI? */ + +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); /* 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.h file specifies which one. It is not a distinct mode. */ /* Local variables: |