15950f9c95
For now, a long long literal must have the 'LL' or 'll' suffix. A
literal without 'LL' or 'll' acts as before: it may become unsigned
long but not long long. (For targets where int and long have the same
size, some literals change from unsigned int to unsigned long.)
Type `arith` may be too narrow for long long values. Add a second
type `writh` for wide arithmetic, and change some variables from arith
to writh. This may cause bugs if I forget to use writh, or if a
conversion from writh to arith overflows. I mark some conversions
with (arith) or (writh) casts.
- BigPars, SmallPars: Remove SPECIAL_ARITHMETICS. This feature
would change arith to a different type, but can't work, because it
would conflict with definitions of arith in both <em_arith.h> and
<flt_arith.h>.
- LLlex.c: Understand 'LL' or 'll' suffix. Cut size of constant when
it overflows writh, not only when it overflows the target machine's
types. (This cut might not be necessary, because we might cut it
again later.) When picking signed long or unsigned long, check the
target's long type, not the compiler's arith type; the old check
for `val >= 0` was broken where sizeof(arith) > 4.
- LLlex.h: Change struct token's tok_ival to writh, so it can hold a
long long literal.
- arith.c: Adjust to VL_VALUE being writh. Don't convert between
float and integer at compile-time if the integer might be too wide
for <flt_arith.h>. Add writh2str(), because writh might be too
wide for long2str().
- arith.h: Remove SPECIAL_ARITHMETICS. Declare full_mask[] here,
not in several *.c files. Declare writh2str().
- ch3.c, ch3bin.c, ch3mon.c, declarator.c, statement.g: Remove
obsolete casts. Adjust to VL_VALUE being writh.
- conversion.c, stab.c: Don't declare full_mask[].
- cstoper.c: Use writh for constant operations on VL_VALUE, and for
full_mask[].
- declar., field.c, ival.g: Add casts.
- dumpidf.c: Need to #include "parameters.h" before checking DEBUG.
Use writh2str, because "%ld" might not work.
- eval.c, eval.h: Add casts. Use writh when writing a wide constant
in EM.
- expr.c: Add and remove casts. In fill_int_expr(), make expression
from long long literal. In chk_cst_expr(), allow long long as
constant expression, so the compiler may accept `case 123LL:` in a
switch statement.
- expr.str: Change struct value's vl_value and struct expr's VL_VALUE
to writh, so an expression may have a long long value at compile
time.
- statement.g: Remove obsolete casts.
- switch.c, switch.str: Use writh in case entries for switch
statements, so `switch (ll) {...}` with long long ll works.
- tokenname.c: Add ULNGLNG so LLlex.c can use it for literals.
136 lines
3.2 KiB
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136 lines
3.2 KiB
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!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: 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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