007a63d529
Add long long type, but without literals; you can't say '123LL' yet.
You can try constant operations, like `(long long)123 + 1`, but the
compiler's `arith` type might not be wide enough. Conversions,
shifts, and some other operations don't work in i386 ncg; I am using a
union instead of conversions:
union q {
long long ll;
unsigned long long ull;
int i[2];
};
Hack plat/linux386/descr to enable long long (size 8, alignment 4)
only for this platform. The default for other platforms is to disable
long long (size -1).
In lang/cem/cemcom.ansi,
- BigPars, SmallPars: Add default size, alignment of long long.
- align.h: Add lnglng_align.
- arith.c: Convert arithmetic operands to long long or unsigned long
long when necessary; avoid conversion from long long to long.
Allow long long as an arithmetic, integral, or logical operand.
- ch3.c: Handle long long like int and long when erroneously applying
a selector, like `long long ll; ll.member` or `ll->member`. Add
long long to integral and arithmetic types.
- code.c: Add long long to type stabs for debugging.
- conversion.c: Add long long to integral conversions.
- cstoper.c: Write masks up to full_mask[8]. Add FIXME comment.
- declar.g: Parse `long long` in code.
- decspecs.c: Understand long long in type declarations.
- eval.c: Add long long to operations, to generate code like `adi 8`.
Don't use `ldc` with constant over 4 bytes.
- ival.g: Allow long long in initializations.
- main.c: Set lnglng_type and related values.
- options.c: Add option like `-Vq8.4` to set long long to size 8,
alignment 4. I chose 'q', because Perl's pack and Ruby's
Array#pack use 'q' for 64-bit or long long values; it might be a
reference to BSD's old quad_t alias for long long.
- sizes.h: Add lnglng_size.
- stab.c: Allow long long when writing the type stab for debugging.
Switch from calculating the ranges to hardcoding them in strings;
add 8-byte ranges as a special case. This also hardcodes the
unsigned 4-byte range as "0;-1". Before it was either "0;-1" or
"0;4294967295", depending on sizeof(long) in the compiler.
- struct.c: Try long long bitfield, but it will probably give the
error, "bit field type long long does not fit in a word".
- switch.c: Update comment.
- tokenname.c: Define LNGLNG (long long) like LNGDBL (long double).
- type.c, type.str: Add lnglng_type and ulnglng_type. Add function
no_long_long() to check if long long is disabled.
141 lines
3.4 KiB
Plaintext
141 lines
3.4 KiB
Plaintext
!File: lint.h
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/*#define LINT 1 *//* if defined, 'lint' is produced */
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!File: pathlength.h
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#define PATHLENGTH 1024 /* max. length of path to file */
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!File: errout.h
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#define ERROUT STDERR /* file pointer for writing messages */
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#define ERR_SHADOW 5 /* a syntax error overshadows error messages
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until ERR_SHADOW symbols have been
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accepted without syntax error */
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!File: idfsize.h
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#define IDFSIZE 64 /* maximum significant length of an identifier */
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!File: numsize.h
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#define NUMSIZE 256 /* maximum length of a numeric constant */
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!File: nparams.h
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#define NPARAMS 32 /* maximum number of parameters */
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#define STDC_NPARAMS 31 /* ANSI limit on number of parameters */
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!File: ifdepth.h
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#define IFDEPTH 256 /* maximum number of nested if-constructions */
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!File: density.h
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#define DENSITY 3 /* see switch.[ch] for an explanation */
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!File: macbuf.h
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#define LAPBUF 128 /* initial size of macro replacement buffer */
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#define ARGBUF 128 /* initial size of macro parameter buffer(s) */
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!File: strsize.h
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#define ISTRSIZE 32 /* minimum number of bytes allocated for
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storing a string */
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#define RSTRSIZE 16 /* step size in enlarging the memory for
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the storage of a string */
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!File: trgt_sizes.h
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#define MAXSIZE 8 /* the maximum of the SZ_* constants */
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/* target machine sizes */
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#define SZ_CHAR 1
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#define SZ_SHORT 2
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#define SZ_WORD 4
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#define SZ_INT 4
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#define SZ_LONG 4
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#define SZ_LNGLNG -1
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#define SZ_FLOAT 4
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#define SZ_DOUBLE 8
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#define SZ_LNGDBL 8 /* for now */
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#define SZ_POINTER 4
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/* target machine alignment requirements */
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#define AL_CHAR 1
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#define AL_SHORT SZ_SHORT
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#define AL_WORD SZ_WORD
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#define AL_INT SZ_WORD
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#define AL_LONG SZ_WORD
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#define AL_LNGLNG SZ_WORD
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#define AL_FLOAT SZ_WORD
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#define AL_DOUBLE SZ_WORD
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#define AL_LNGDBL SZ_WORD
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#define AL_POINTER SZ_WORD
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#define AL_STRUCT 1
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#define AL_UNION 1
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!File: botch_free.h
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/*#define BOTCH_FREE 1* *//* when defined, botch freed memory, as a check */
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!File: dataflow.h
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#define DATAFLOW 1 /* produce some compile-time xref */
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!File: debug.h
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/*#define DEBUG 1 *//* perform various self-tests */
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#define NDEBUG 1 /* disable assertions */
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!File: use_tmp.h
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#define PREPEND_SCOPES 1 /* collect exa, exp, ina and inp commands
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and if USE_TMP is defined let them
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precede the rest of the generated
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compact code */
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#define USE_TMP 1 /* use C_insertpart, C_endpart mechanism
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to generate EM-code in the order needed
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for the code-generators. If not defined,
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the old-style peephole optimizer is
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needed. */
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!File: parbufsize.h
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#define PARBUFSIZE 1024
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!File: textsize.h
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#define ITEXTSIZE 32 /* 1st piece of memory for repl. text */
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!File: inputtype.h
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#define INP_READ_IN_ONE 1 /* read input file in one */
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!File: nobitfield.h
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/*#define NOBITFIELD 1 *//* if NOT defined, implement bitfields */
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!File: spec_arith.h
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/* describes internal compiler arithmetics */
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#undef SPECIAL_ARITHMETICS /* something different from native long */
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!File: static.h
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#define GSTATIC /* for large global "static" arrays */
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!File: nocross.h
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/*#define NOCROSS 1 *//* if NOT defined, cross compiler */
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!File: regcount.h
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/*#define REGCOUNT 1 *//* count occurrences for register messages */
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!File: dbsymtab.h
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#define DBSYMTAB 1 /* ability to produce symbol table for debugger */
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