diff --git a/frontends/p4/p4-lex.c b/frontends/p4/p4-lex.c deleted file mode 100644 index a170bddac3..0000000000 --- a/frontends/p4/p4-lex.c +++ /dev/null @@ -1,2288 +0,0 @@ - -#line 3 "" - -#define YY_INT_ALIGNED short int - -/* A lexical scanner generated by flex */ - -#define FLEX_SCANNER -#define YY_FLEX_MAJOR_VERSION 2 -#define YY_FLEX_MINOR_VERSION 6 -#define YY_FLEX_SUBMINOR_VERSION 2 -#if YY_FLEX_SUBMINOR_VERSION > 0 -#define FLEX_BETA -#endif - -/* First, we deal with platform-specific or compiler-specific issues. */ - -/* begin standard C headers. */ -#include -#include -#include -#include - -/* end standard C headers. */ - -/* flex integer type definitions */ - -#ifndef FLEXINT_H -#define FLEXINT_H - -/* C99 systems have . Non-C99 systems may or may not. */ - -#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L - -/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, - * if you want the limit (max/min) macros for int types. - */ -#ifndef __STDC_LIMIT_MACROS -#define __STDC_LIMIT_MACROS 1 -#endif - -#include -typedef int8_t flex_int8_t; -typedef uint8_t flex_uint8_t; -typedef int16_t flex_int16_t; -typedef uint16_t flex_uint16_t; -typedef int32_t flex_int32_t; -typedef uint32_t flex_uint32_t; -#else -typedef signed char flex_int8_t; -typedef short int flex_int16_t; -typedef int flex_int32_t; -typedef unsigned char flex_uint8_t; -typedef unsigned short int flex_uint16_t; -typedef unsigned int flex_uint32_t; - -/* Limits of integral types. */ -#ifndef INT8_MIN -#define INT8_MIN (-128) -#endif -#ifndef INT16_MIN -#define INT16_MIN (-32767-1) -#endif -#ifndef INT32_MIN -#define INT32_MIN (-2147483647-1) -#endif -#ifndef INT8_MAX -#define INT8_MAX (127) -#endif -#ifndef INT16_MAX -#define INT16_MAX (32767) -#endif -#ifndef INT32_MAX -#define INT32_MAX (2147483647) -#endif -#ifndef UINT8_MAX -#define UINT8_MAX (255U) -#endif -#ifndef UINT16_MAX -#define UINT16_MAX (65535U) -#endif -#ifndef UINT32_MAX -#define UINT32_MAX (4294967295U) -#endif - -#endif /* ! C99 */ - -#endif /* ! FLEXINT_H */ - -/* TODO: this is always defined, so inline it */ -#define yyconst const - -#if defined(__GNUC__) && __GNUC__ >= 3 -#define yynoreturn __attribute__((__noreturn__)) -#else -#define yynoreturn -#endif - -/* Returned upon end-of-file. */ -#define YY_NULL 0 - -/* Promotes a possibly negative, possibly signed char to an - * integer in range [0..255] for use as an array index. - */ -#define YY_SC_TO_UI(c) ((YY_CHAR) (c)) - -/* Enter a start condition. This macro really ought to take a parameter, - * but we do it the disgusting crufty way forced on us by the ()-less - * definition of BEGIN. - */ -#define BEGIN (yy_start) = 1 + 2 * - -/* Translate the current start state into a value that can be later handed - * to BEGIN to return to the state. The YYSTATE alias is for lex - * compatibility. - */ -#define YY_START (((yy_start) - 1) / 2) -#define YYSTATE YY_START - -/* Action number for EOF rule of a given start state. */ -#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) - -/* Special action meaning "start processing a new file". */ -#define YY_NEW_FILE yyrestart(yyin ) - -#define YY_END_OF_BUFFER_CHAR 0 - -/* Size of default input buffer. */ -#ifndef YY_BUF_SIZE -#ifdef __ia64__ -/* On IA-64, the buffer size is 16k, not 8k. - * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. - * Ditto for the __ia64__ case accordingly. - */ -#define YY_BUF_SIZE 32768 -#else -#define YY_BUF_SIZE 16384 -#endif /* __ia64__ */ -#endif - -/* The state buf must be large enough to hold one state per character in the main buffer. - */ -#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) - -#ifndef YY_TYPEDEF_YY_BUFFER_STATE -#define YY_TYPEDEF_YY_BUFFER_STATE -typedef struct yy_buffer_state *YY_BUFFER_STATE; -#endif - -#ifndef YY_TYPEDEF_YY_SIZE_T -#define YY_TYPEDEF_YY_SIZE_T -typedef size_t yy_size_t; -#endif - -extern int yyleng; - -extern FILE *yyin, *yyout; - -#define EOB_ACT_CONTINUE_SCAN 0 -#define EOB_ACT_END_OF_FILE 1 -#define EOB_ACT_LAST_MATCH 2 - - #define YY_LESS_LINENO(n) - #define YY_LINENO_REWIND_TO(ptr) - -/* Return all but the first "n" matched characters back to the input stream. */ -#define yyless(n) \ - do \ - { \ - /* Undo effects of setting up yytext. */ \ - int yyless_macro_arg = (n); \ - YY_LESS_LINENO(yyless_macro_arg);\ - *yy_cp = (yy_hold_char); \ - YY_RESTORE_YY_MORE_OFFSET \ - (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ - YY_DO_BEFORE_ACTION; /* set up yytext again */ \ - } \ - while ( 0 ) - -#define unput(c) yyunput( c, (yytext_ptr) ) - -#ifndef YY_STRUCT_YY_BUFFER_STATE -#define YY_STRUCT_YY_BUFFER_STATE -struct yy_buffer_state - { - FILE *yy_input_file; - - char *yy_ch_buf; /* input buffer */ - char *yy_buf_pos; /* current position in input buffer */ - - /* Size of input buffer in bytes, not including room for EOB - * characters. - */ - int yy_buf_size; - - /* Number of characters read into yy_ch_buf, not including EOB - * characters. - */ - int yy_n_chars; - - /* Whether we "own" the buffer - i.e., we know we created it, - * and can realloc() it to grow it, and should free() it to - * delete it. - */ - int yy_is_our_buffer; - - /* Whether this is an "interactive" input source; if so, and - * if we're using stdio for input, then we want to use getc() - * instead of fread(), to make sure we stop fetching input after - * each newline. - */ - int yy_is_interactive; - - /* Whether we're considered to be at the beginning of a line. - * If so, '^' rules will be active on the next match, otherwise - * not. - */ - int yy_at_bol; - - int yy_bs_lineno; /**< The line count. */ - int yy_bs_column; /**< The column count. */ - - /* Whether to try to fill the input buffer when we reach the - * end of it. - */ - int yy_fill_buffer; - - int yy_buffer_status; - -#define YY_BUFFER_NEW 0 -#define YY_BUFFER_NORMAL 1 - /* When an EOF's been seen but there's still some text to process - * then we mark the buffer as YY_EOF_PENDING, to indicate that we - * shouldn't try reading from the input source any more. We might - * still have a bunch of tokens to match, though, because of - * possible backing-up. - * - * When we actually see the EOF, we change the status to "new" - * (via yyrestart()), so that the user can continue scanning by - * just pointing yyin at a new input file. - */ -#define YY_BUFFER_EOF_PENDING 2 - - }; -#endif /* !YY_STRUCT_YY_BUFFER_STATE */ - -/* Stack of input buffers. */ -static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ -static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ -static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */ - -/* We provide macros for accessing buffer states in case in the - * future we want to put the buffer states in a more general - * "scanner state". - * - * Returns the top of the stack, or NULL. - */ -#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ - ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ - : NULL) - -/* Same as previous macro, but useful when we know that the buffer stack is not - * NULL or when we need an lvalue. For internal use only. - */ -#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] - -/* yy_hold_char holds the character lost when yytext is formed. */ -static char yy_hold_char; -static int yy_n_chars; /* number of characters read into yy_ch_buf */ -int yyleng; - -/* Points to current character in buffer. */ -static char *yy_c_buf_p = NULL; -static int yy_init = 0; /* whether we need to initialize */ -static int yy_start = 0; /* start state number */ - -/* Flag which is used to allow yywrap()'s to do buffer switches - * instead of setting up a fresh yyin. A bit of a hack ... - */ -static int yy_did_buffer_switch_on_eof; - -void yyrestart (FILE *input_file ); -void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); -YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); -void yy_delete_buffer (YY_BUFFER_STATE b ); -void yy_flush_buffer (YY_BUFFER_STATE b ); -void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); -void yypop_buffer_state (void ); - -static void yyensure_buffer_stack (void ); -static void yy_load_buffer_state (void ); -static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); - -#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) - -YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); -YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); -YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len ); - -void *yyalloc (yy_size_t ); -void *yyrealloc (void *,yy_size_t ); -void yyfree (void * ); - -#define yy_new_buffer yy_create_buffer - -#define yy_set_interactive(is_interactive) \ - { \ - if ( ! YY_CURRENT_BUFFER ){ \ - yyensure_buffer_stack (); \ - YY_CURRENT_BUFFER_LVALUE = \ - yy_create_buffer(yyin,YY_BUF_SIZE ); \ - } \ - YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ - } - -#define yy_set_bol(at_bol) \ - { \ - if ( ! YY_CURRENT_BUFFER ){\ - yyensure_buffer_stack (); \ - YY_CURRENT_BUFFER_LVALUE = \ - yy_create_buffer(yyin,YY_BUF_SIZE ); \ - } \ - YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ - } - -#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) - -/* Begin user sect3 */ - -#define yywrap() (/*CONSTCOND*/1) -#define YY_SKIP_YYWRAP - -typedef flex_uint8_t YY_CHAR; - -FILE *yyin = NULL, *yyout = NULL; - -typedef int yy_state_type; - -extern int yylineno; - -int yylineno = 1; - -extern char *yytext; -#ifdef yytext_ptr -#undef yytext_ptr -#endif -#define yytext_ptr yytext - -static yy_state_type yy_get_previous_state (void ); -static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); -static int yy_get_next_buffer (void ); -static void yynoreturn yy_fatal_error (yyconst char* msg ); - -/* Done after the current pattern has been matched and before the - * corresponding action - sets up yytext. - */ -#define YY_DO_BEFORE_ACTION \ - (yytext_ptr) = yy_bp; \ - yyleng = (int) (yy_cp - yy_bp); \ - (yy_hold_char) = *yy_cp; \ - *yy_cp = '\0'; \ - (yy_c_buf_p) = yy_cp; - -#define YY_NUM_RULES 84 -#define YY_END_OF_BUFFER 85 -/* This struct is not used in this scanner, - but its presence is necessary. */ -struct yy_trans_info - { - flex_int32_t yy_verify; - flex_int32_t yy_nxt; - }; -static yyconst flex_int16_t yy_accept[264] = - { 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 85, 83, 1, 2, 1, 83, - 17, 10, 83, 83, 83, 83, 67, 67, 83, 83, - 83, 62, 61, 62, 62, 62, 62, 62, 62, 62, - 62, 62, 62, 62, 62, 62, 62, 62, 62, 83, - 6, 7, 6, 21, 22, 20, 21, 14, 13, 16, - 11, 12, 15, 1, 1, 10, 79, 9, 0, 76, - 82, 74, 4, 3, 67, 0, 0, 0, 0, 0, - 75, 81, 78, 80, 62, 62, 62, 62, 62, 62, - 62, 62, 62, 62, 62, 62, 62, 62, 40, 41, - - 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, - 62, 62, 62, 62, 77, 5, 18, 19, 11, 12, - 0, 73, 3, 66, 64, 65, 63, 72, 72, 62, - 62, 62, 28, 62, 62, 62, 62, 62, 62, 62, - 62, 62, 62, 62, 43, 44, 62, 46, 62, 62, - 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, - 62, 62, 0, 0, 0, 0, 0, 62, 62, 62, - 27, 62, 62, 62, 32, 33, 62, 35, 62, 62, - 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, - 62, 55, 62, 57, 62, 62, 60, 8, 71, 69, - - 70, 68, 62, 62, 26, 29, 62, 62, 34, 62, - 37, 62, 42, 62, 62, 62, 62, 62, 51, 62, - 62, 54, 62, 62, 62, 62, 24, 62, 62, 36, - 38, 62, 62, 47, 49, 50, 52, 53, 62, 62, - 59, 62, 25, 30, 31, 62, 62, 48, 62, 58, - 23, 62, 62, 62, 62, 62, 62, 62, 45, 56, - 62, 39, 0 - } ; - -static yyconst YY_CHAR yy_ec[256] = - { 0, - 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, - 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 5, 6, 7, 8, 1, 1, 9, 1, 1, - 1, 10, 11, 1, 1, 12, 13, 14, 15, 16, - 16, 16, 16, 16, 16, 17, 17, 1, 1, 18, - 19, 20, 1, 1, 21, 22, 21, 23, 21, 21, - 24, 24, 24, 24, 24, 24, 24, 24, 25, 24, - 24, 24, 24, 24, 24, 24, 24, 26, 24, 24, - 1, 27, 1, 1, 28, 1, 29, 30, 31, 32, - - 33, 34, 35, 36, 37, 24, 38, 39, 40, 41, - 42, 43, 24, 44, 45, 46, 47, 48, 49, 50, - 51, 24, 1, 52, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1 - } ; - -static yyconst YY_CHAR yy_meta[53] = - { 0, - 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, - 1, 1, 1, 4, 4, 4, 4, 1, 1, 1, - 4, 4, 4, 5, 5, 5, 1, 4, 4, 4, - 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 1 - } ; - -static yyconst flex_int16_t yy_base[273] = - { 0, - 0, 0, 50, 51, 52, 55, 61, 69, 85, 91, - 410, 409, 65, 95, 411, 414, 97, 414, 102, 391, - 414, 52, 400, 397, 395, 55, 94, 113, 62, 387, - 386, 0, 0, 82, 81, 362, 370, 96, 373, 368, - 80, 367, 370, 351, 368, 363, 99, 105, 27, 343, - 414, 414, 381, 414, 414, 414, 88, 414, 414, 414, - 136, 0, 414, 155, 162, 414, 414, 414, 356, 383, - 414, 414, 414, 0, 154, 158, 160, 164, 0, 167, - 414, 414, 414, 414, 0, 346, 344, 346, 342, 345, - 345, 351, 339, 336, 338, 85, 342, 351, 0, 96, - - 328, 332, 331, 154, 330, 336, 158, 337, 343, 335, - 118, 328, 326, 332, 414, 414, 414, 414, 179, 0, - 327, 414, 0, 176, 191, 195, 0, 210, 198, 321, - 329, 326, 0, 325, 109, 334, 329, 321, 318, 313, - 325, 312, 324, 308, 0, 0, 323, 0, 315, 307, - 304, 317, 303, 301, 301, 307, 300, 303, 310, 309, - 311, 308, 306, 202, 229, 206, 0, 294, 295, 285, - 0, 289, 290, 286, 0, 0, 288, 0, 287, 297, - 296, 282, 291, 297, 292, 280, 292, 289, 290, 289, - 286, 0, 273, 0, 285, 279, 0, 414, 223, 233, - - 239, 0, 286, 273, 0, 0, 271, 273, 0, 270, - 0, 266, 0, 281, 273, 263, 265, 259, 0, 258, - 267, 0, 265, 268, 254, 265, 247, 227, 219, 0, - 236, 225, 229, 0, 0, 0, 0, 0, 213, 224, - 0, 210, 0, 0, 0, 194, 202, 0, 194, 0, - 0, 188, 187, 176, 164, 168, 156, 147, 0, 0, - 120, 0, 414, 267, 272, 277, 282, 284, 289, 294, - 129, 85 - } ; - -static yyconst flex_int16_t yy_def[273] = - { 0, - 263, 1, 264, 264, 265, 265, 266, 266, 266, 266, - 267, 267, 1, 1, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 269, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 270, 263, 263, 263, 263, 271, 263, - 263, 263, 263, 263, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 263, 263, 263, 263, 263, 269, - 263, 263, 270, 263, 263, 263, 271, 263, 263, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 263, 263, 263, 263, 272, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 263, 263, 263, - - 263, 272, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 268, 268, 268, 268, 268, 268, 268, 268, - 268, 268, 0, 263, 263, 263, 263, 263, 263, 263, - 263, 263 - } ; - -static yyconst flex_int16_t yy_nxt[467] = - { 0, - 16, 17, 18, 19, 17, 20, 21, 22, 23, 16, - 24, 25, 26, 27, 28, 28, 28, 29, 30, 31, - 32, 32, 32, 32, 32, 32, 16, 33, 34, 35, - 36, 37, 38, 39, 32, 40, 41, 42, 32, 43, - 32, 44, 45, 46, 47, 48, 32, 49, 32, 32, - 32, 50, 52, 52, 55, 113, 68, 55, 56, 53, - 53, 56, 59, 60, 73, 59, 19, 74, 114, 19, - 59, 60, 16, 59, 61, 61, 61, 61, 57, 81, - 82, 57, 61, 61, 61, 61, 59, 60, 202, 59, - 69, 62, 59, 60, 117, 59, 19, 62, 64, 19, - - 65, 64, 16, 65, 66, 65, 65, 75, 75, 75, - 75, 86, 87, 99, 118, 76, 77, 89, 78, 79, - 100, 140, 90, 76, 88, 77, 75, 75, 75, 75, - 141, 106, 127, 109, 93, 78, 94, 144, 80, 95, - 110, 145, 80, 79, 107, 96, 158, 108, 111, 119, - 119, 119, 119, 172, 173, 112, 64, 80, 65, 64, - 262, 80, 66, 65, 159, 65, 65, 75, 75, 75, - 75, 124, 124, 125, 125, 125, 125, 126, 126, 126, - 128, 129, 129, 129, 149, 124, 153, 125, 261, 124, - 124, 126, 119, 119, 119, 119, 260, 150, 80, 259, - - 258, 154, 80, 124, 125, 125, 125, 125, 126, 126, - 126, 129, 129, 129, 129, 199, 199, 257, 125, 201, - 201, 201, 126, 129, 129, 129, 129, 256, 255, 199, - 254, 164, 165, 201, 166, 167, 199, 199, 253, 164, - 252, 165, 200, 200, 200, 200, 200, 200, 200, 200, - 199, 166, 201, 201, 201, 251, 200, 250, 249, 167, - 200, 248, 247, 246, 245, 244, 201, 51, 51, 51, - 51, 51, 54, 54, 54, 54, 54, 58, 58, 58, - 58, 58, 63, 63, 63, 63, 63, 85, 85, 120, - 120, 243, 120, 120, 123, 242, 123, 123, 123, 241, - - 240, 239, 238, 237, 236, 235, 234, 233, 232, 231, - 230, 229, 228, 227, 226, 225, 224, 223, 222, 221, - 220, 219, 218, 217, 216, 215, 214, 213, 212, 211, - 210, 209, 208, 207, 206, 205, 204, 203, 198, 197, - 196, 195, 194, 193, 192, 191, 190, 189, 188, 187, - 186, 185, 184, 183, 182, 181, 180, 179, 178, 177, - 176, 175, 174, 171, 170, 169, 168, 163, 162, 161, - 160, 157, 156, 155, 152, 151, 148, 147, 146, 143, - 142, 139, 138, 137, 136, 135, 134, 133, 132, 131, - 130, 122, 121, 116, 115, 105, 104, 103, 102, 101, - - 98, 97, 92, 91, 84, 83, 72, 71, 70, 67, - 263, 60, 60, 15, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263 - } ; - -static yyconst flex_int16_t yy_chk[467] = - { 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 3, 4, 5, 49, 22, 6, 5, 3, - 4, 6, 7, 7, 26, 7, 13, 26, 49, 13, - 8, 8, 13, 8, 7, 7, 7, 7, 5, 29, - 29, 6, 8, 8, 8, 8, 9, 9, 272, 9, - 22, 9, 10, 10, 57, 10, 14, 10, 17, 14, - - 17, 17, 14, 19, 17, 19, 19, 27, 27, 27, - 27, 34, 34, 41, 57, 27, 27, 35, 27, 27, - 41, 96, 35, 27, 34, 27, 28, 28, 28, 28, - 96, 47, 271, 48, 38, 27, 38, 100, 27, 38, - 48, 100, 27, 27, 47, 38, 111, 47, 48, 61, - 61, 61, 61, 135, 135, 48, 64, 28, 64, 64, - 261, 28, 64, 65, 111, 65, 65, 75, 75, 75, - 75, 76, 76, 77, 77, 77, 77, 78, 78, 78, - 80, 80, 80, 80, 104, 76, 107, 77, 258, 124, - 124, 78, 119, 119, 119, 119, 257, 104, 75, 256, - - 255, 107, 75, 124, 125, 125, 125, 125, 126, 126, - 126, 129, 129, 129, 129, 164, 164, 254, 125, 166, - 166, 166, 126, 128, 128, 128, 128, 253, 252, 164, - 249, 128, 128, 166, 128, 128, 199, 199, 247, 128, - 246, 128, 165, 165, 165, 165, 200, 200, 200, 200, - 199, 128, 201, 201, 201, 242, 165, 240, 239, 128, - 200, 233, 232, 231, 229, 228, 201, 264, 264, 264, - 264, 264, 265, 265, 265, 265, 265, 266, 266, 266, - 266, 266, 267, 267, 267, 267, 267, 268, 268, 269, - 269, 227, 269, 269, 270, 226, 270, 270, 270, 225, - - 224, 223, 221, 220, 218, 217, 216, 215, 214, 212, - 210, 208, 207, 204, 203, 196, 195, 193, 191, 190, - 189, 188, 187, 186, 185, 184, 183, 182, 181, 180, - 179, 177, 174, 173, 172, 170, 169, 168, 163, 162, - 161, 160, 159, 158, 157, 156, 155, 154, 153, 152, - 151, 150, 149, 147, 144, 143, 142, 141, 140, 139, - 138, 137, 136, 134, 132, 131, 130, 121, 114, 113, - 112, 110, 109, 108, 106, 105, 103, 102, 101, 98, - 97, 95, 94, 93, 92, 91, 90, 89, 88, 87, - 86, 70, 69, 53, 50, 46, 45, 44, 43, 42, - - 40, 39, 37, 36, 31, 30, 25, 24, 23, 20, - 15, 12, 11, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263, 263, 263, 263, 263, - 263, 263, 263, 263, 263, 263 - } ; - -static yy_state_type yy_last_accepting_state; -static char *yy_last_accepting_cpos; - -extern int yy_flex_debug; -int yy_flex_debug = 0; - -/* The intent behind this definition is that it'll catch - * any uses of REJECT which flex missed. - */ -#define REJECT reject_used_but_not_detected -#define yymore() yymore_used_but_not_detected -#define YY_MORE_ADJ 0 -#define YY_RESTORE_YY_MORE_OFFSET -char *yytext; -#line 1 "../frontends/p4/p4-lex.l" -#line 2 "../frontends/p4/p4-lex.l" -#define YY_USER_ACTION \ - { auto tmp = Util::InputSources::instance->getCurrentPosition(); \ - Util::InputSources::instance->appendText(yytext); \ - yylloc = Util::SourceInfo(tmp, Util::InputSources::instance->getCurrentPosition()); } - -// shut up warnings about unused functions and variables -#pragma GCC diagnostic ignored "-Wunused-function" -#pragma GCC diagnostic ignored "-Wunused-variable" - -// line indicated by #line directive -static int lineDirectiveLine; -// file indicated by #line directive -static cstring lineDirectiveFile; - -void parseLineNumber(const char* text) -{ - char* last; - ::lineDirectiveLine = strtol(text, &last, 10); - if (errno != 0 || - // we have not parsed the complete string - strlen(last) != 0) - ErrorReporter::instance.parser_error("Error parsing line number %s", text); -} - -std::string stringLiteral; - -#define YY_NO_INPUT 1 - - - -#line 673 "" - -#define INITIAL 0 -#define COMMENT 1 -#define STRING 2 -#define LINE1 3 -#define LINE2 4 -#define LINE3 5 -#define NORMAL 6 - -#ifndef YY_NO_UNISTD_H -/* Special case for "unistd.h", since it is non-ANSI. We include it way - * down here because we want the user's section 1 to have been scanned first. - * The user has a chance to override it with an option. - */ -#include -#endif - -#ifndef YY_EXTRA_TYPE -#define YY_EXTRA_TYPE void * -#endif - -static int yy_init_globals (void ); - -/* Accessor methods to globals. - These are made visible to non-reentrant scanners for convenience. */ - -int yylex_destroy (void ); - -/* Macros after this point can all be overridden by user definitions in - * section 1. - */ - -#ifndef YY_SKIP_YYWRAP -#ifdef __cplusplus -extern "C" int yywrap (void ); -#else -extern int yywrap (void ); -#endif -#endif - -#ifndef YY_NO_UNPUT - -#endif - -#ifndef yytext_ptr -static void yy_flex_strncpy (char *,yyconst char *,int ); -#endif - -#ifdef YY_NEED_STRLEN -static int yy_flex_strlen (yyconst char * ); -#endif - -#ifndef YY_NO_INPUT - -#ifdef __cplusplus -static int yyinput (void ); -#else -static int input (void ); -#endif - -#endif - -/* Amount of stuff to slurp up with each read. */ -#ifndef YY_READ_BUF_SIZE -#ifdef __ia64__ -/* On IA-64, the buffer size is 16k, not 8k */ -#define YY_READ_BUF_SIZE 16384 -#else -#define YY_READ_BUF_SIZE 8192 -#endif /* __ia64__ */ -#endif - -/* Copy whatever the last rule matched to the standard output. */ -#ifndef ECHO -/* This used to be an fputs(), but since the string might contain NUL's, - * we now use fwrite(). - */ -#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0) -#endif - -/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, - * is returned in "result". - */ -#ifndef YY_INPUT -#define YY_INPUT(buf,result,max_size) \ - if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ - { \ - int c = '*'; \ - int n; \ - for ( n = 0; n < max_size && \ - (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ - buf[n] = (char) c; \ - if ( c == '\n' ) \ - buf[n++] = (char) c; \ - if ( c == EOF && ferror( yyin ) ) \ - YY_FATAL_ERROR( "input in flex scanner failed" ); \ - result = n; \ - } \ - else \ - { \ - errno=0; \ - while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \ - { \ - if( errno != EINTR) \ - { \ - YY_FATAL_ERROR( "input in flex scanner failed" ); \ - break; \ - } \ - errno=0; \ - clearerr(yyin); \ - } \ - }\ -\ - -#endif - -/* No semi-colon after return; correct usage is to write "yyterminate();" - - * we don't want an extra ';' after the "return" because that will cause - * some compilers to complain about unreachable statements. - */ -#ifndef yyterminate -#define yyterminate() return YY_NULL -#endif - -/* Number of entries by which start-condition stack grows. */ -#ifndef YY_START_STACK_INCR -#define YY_START_STACK_INCR 25 -#endif - -/* Report a fatal error. */ -#ifndef YY_FATAL_ERROR -#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) -#endif - -/* end tables serialization structures and prototypes */ - -/* Default declaration of generated scanner - a define so the user can - * easily add parameters. - */ -#ifndef YY_DECL -#define YY_DECL_IS_OURS 1 - -extern int yylex (void); - -#define YY_DECL int yylex (void) -#endif /* !YY_DECL */ - -/* Code executed at the beginning of each rule, after yytext and yyleng - * have been set up. - */ -#ifndef YY_USER_ACTION -#define YY_USER_ACTION -#endif - -/* Code executed at the end of each rule. */ -#ifndef YY_BREAK -#define YY_BREAK /*LINTED*/break; -#endif - -#define YY_RULE_SETUP \ - YY_USER_ACTION - -/** The main scanner function which does all the work. - */ -YY_DECL -{ - yy_state_type yy_current_state; - char *yy_cp, *yy_bp; - int yy_act; - - if ( !(yy_init) ) - { - (yy_init) = 1; - -#ifdef YY_USER_INIT - YY_USER_INIT; -#endif - - if ( ! (yy_start) ) - (yy_start) = 1; /* first start state */ - - if ( ! yyin ) - yyin = stdin; - - if ( ! yyout ) - yyout = stdout; - - if ( ! YY_CURRENT_BUFFER ) { - yyensure_buffer_stack (); - YY_CURRENT_BUFFER_LVALUE = - yy_create_buffer(yyin,YY_BUF_SIZE ); - } - - yy_load_buffer_state( ); - } - - { -#line 38 "../frontends/p4/p4-lex.l" - - -#line 874 "" - - while ( /*CONSTCOND*/1 ) /* loops until end-of-file is reached */ - { - yy_cp = (yy_c_buf_p); - - /* Support of yytext. */ - *yy_cp = (yy_hold_char); - - /* yy_bp points to the position in yy_ch_buf of the start of - * the current run. - */ - yy_bp = yy_cp; - - yy_current_state = (yy_start); -yy_match: - do - { - YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; - if ( yy_accept[yy_current_state] ) - { - (yy_last_accepting_state) = yy_current_state; - (yy_last_accepting_cpos) = yy_cp; - } - while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) - { - yy_current_state = (int) yy_def[yy_current_state]; - if ( yy_current_state >= 264 ) - yy_c = yy_meta[yy_c]; - } - yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; - ++yy_cp; - } - while ( yy_base[yy_current_state] != 414 ); - -yy_find_action: - yy_act = yy_accept[yy_current_state]; - if ( yy_act == 0 ) - { /* have to back up */ - yy_cp = (yy_last_accepting_cpos); - yy_current_state = (yy_last_accepting_state); - yy_act = yy_accept[yy_current_state]; - } - - YY_DO_BEFORE_ACTION; - -do_action: /* This label is used only to access EOF actions. */ - - switch ( yy_act ) - { /* beginning of action switch */ - case 0: /* must back up */ - /* undo the effects of YY_DO_BEFORE_ACTION */ - *yy_cp = (yy_hold_char); - yy_cp = (yy_last_accepting_cpos); - yy_current_state = (yy_last_accepting_state); - goto yy_find_action; - -case 1: -YY_RULE_SETUP -#line 40 "../frontends/p4/p4-lex.l" -; - YY_BREAK -case 2: -/* rule 2 can match eol */ -YY_RULE_SETUP -#line 41 "../frontends/p4/p4-lex.l" -{ BEGIN INITIAL; } - YY_BREAK -case 3: -YY_RULE_SETUP -#line 42 "../frontends/p4/p4-lex.l" -; - YY_BREAK -case 4: -YY_RULE_SETUP -#line 43 "../frontends/p4/p4-lex.l" -{ BEGIN COMMENT; } - YY_BREAK -case 5: -YY_RULE_SETUP -#line 44 "../frontends/p4/p4-lex.l" -{ BEGIN NORMAL; } - YY_BREAK -case 6: -YY_RULE_SETUP -#line 45 "../frontends/p4/p4-lex.l" -; - YY_BREAK -case 7: -/* rule 7 can match eol */ -YY_RULE_SETUP -#line 46 "../frontends/p4/p4-lex.l" -; - YY_BREAK -case 8: -YY_RULE_SETUP -#line 48 "../frontends/p4/p4-lex.l" -{ BEGIN(LINE1); } - YY_BREAK -case 9: -YY_RULE_SETUP -#line 49 "../frontends/p4/p4-lex.l" -{ BEGIN(LINE1); } - YY_BREAK -case 10: -YY_RULE_SETUP -#line 50 "../frontends/p4/p4-lex.l" -{ BEGIN(LINE3); } - YY_BREAK -case 11: -YY_RULE_SETUP -#line 51 "../frontends/p4/p4-lex.l" -{ parseLineNumber(yytext); - BEGIN(LINE2); } - YY_BREAK -case 12: -/* rule 12 can match eol */ -YY_RULE_SETUP -#line 53 "../frontends/p4/p4-lex.l" -{ lineDirectiveFile = cstring(yytext+1); - Util::InputSources::instance->mapLine(lineDirectiveFile, lineDirectiveLine); - BEGIN(LINE3); } - YY_BREAK -case 13: -YY_RULE_SETUP -#line 56 "../frontends/p4/p4-lex.l" -; - YY_BREAK -case 14: -YY_RULE_SETUP -#line 57 "../frontends/p4/p4-lex.l" -{ BEGIN(LINE3); } - YY_BREAK -case 15: -YY_RULE_SETUP -#line 58 "../frontends/p4/p4-lex.l" -; - YY_BREAK -case 16: -/* rule 16 can match eol */ -YY_RULE_SETUP -#line 59 "../frontends/p4/p4-lex.l" -{ BEGIN(INITIAL); } - YY_BREAK -case YY_STATE_EOF(LINE1): -case YY_STATE_EOF(LINE2): -case YY_STATE_EOF(LINE3): -case YY_STATE_EOF(COMMENT): -case YY_STATE_EOF(NORMAL): -#line 60 "../frontends/p4/p4-lex.l" -{ BEGIN(INITIAL); } - YY_BREAK -case 17: -YY_RULE_SETUP -#line 62 "../frontends/p4/p4-lex.l" -{ BEGIN(STRING); stringLiteral = ""; } - YY_BREAK -case 18: -YY_RULE_SETUP -#line 63 "../frontends/p4/p4-lex.l" -{ stringLiteral += yytext; } - YY_BREAK -case 19: -YY_RULE_SETUP -#line 64 "../frontends/p4/p4-lex.l" -{ stringLiteral += yytext; } - YY_BREAK -case 20: -YY_RULE_SETUP -#line 65 "../frontends/p4/p4-lex.l" -{ BEGIN(INITIAL); - yylval.str = cstring(stringLiteral); - return(STRING_LITERAL); } - YY_BREAK -case 21: -YY_RULE_SETUP -#line 68 "../frontends/p4/p4-lex.l" -{ stringLiteral += yytext; } - YY_BREAK -case 22: -/* rule 22 can match eol */ -YY_RULE_SETUP -#line 69 "../frontends/p4/p4-lex.l" -{ stringLiteral += yytext; } - YY_BREAK -case 23: -YY_RULE_SETUP -#line 71 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return ABSTRACT; } - YY_BREAK -case 24: -YY_RULE_SETUP -#line 72 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return ACTION; } - YY_BREAK -case 25: -YY_RULE_SETUP -#line 73 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return ACTIONS; } - YY_BREAK -case 26: -YY_RULE_SETUP -#line 74 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return APPLY; } - YY_BREAK -case 27: -YY_RULE_SETUP -#line 75 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return BOOL; } - YY_BREAK -case 28: -YY_RULE_SETUP -#line 76 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return BIT; } - YY_BREAK -case 29: -YY_RULE_SETUP -#line 77 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return CONST; } - YY_BREAK -case 30: -YY_RULE_SETUP -#line 78 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return CONTROL; } - YY_BREAK -case 31: -YY_RULE_SETUP -#line 79 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return DEFAULT; } - YY_BREAK -case 32: -YY_RULE_SETUP -#line 80 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return ELSE; } - YY_BREAK -case 33: -YY_RULE_SETUP -#line 81 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return ENUM; } - YY_BREAK -case 34: -YY_RULE_SETUP -#line 82 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return T_ERROR; } - YY_BREAK -case 35: -YY_RULE_SETUP -#line 83 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return EXIT; } - YY_BREAK -case 36: -YY_RULE_SETUP -#line 84 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return EXTERN; } - YY_BREAK -case 37: -YY_RULE_SETUP -#line 85 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return FALSE; } - YY_BREAK -case 38: -YY_RULE_SETUP -#line 86 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return HEADER; } - YY_BREAK -case 39: -YY_RULE_SETUP -#line 87 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return HEADER_UNION; } - YY_BREAK -case 40: -YY_RULE_SETUP -#line 88 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return IF; } - YY_BREAK -case 41: -YY_RULE_SETUP -#line 89 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return IN; } - YY_BREAK -case 42: -YY_RULE_SETUP -#line 90 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return INOUT; } - YY_BREAK -case 43: -YY_RULE_SETUP -#line 91 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return INT; } - YY_BREAK -case 44: -YY_RULE_SETUP -#line 92 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return KEY; } - YY_BREAK -case 45: -YY_RULE_SETUP -#line 93 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return MATCH_KIND; } - YY_BREAK -case 46: -YY_RULE_SETUP -#line 94 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return OUT; } - YY_BREAK -case 47: -YY_RULE_SETUP -#line 95 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return PARSER; } - YY_BREAK -case 48: -YY_RULE_SETUP -#line 96 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return PACKAGE; } - YY_BREAK -case 49: -YY_RULE_SETUP -#line 97 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return RETURN; } - YY_BREAK -case 50: -YY_RULE_SETUP -#line 98 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return SELECT; } - YY_BREAK -case 51: -YY_RULE_SETUP -#line 99 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return STATE; } - YY_BREAK -case 52: -YY_RULE_SETUP -#line 100 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return STRUCT; } - YY_BREAK -case 53: -YY_RULE_SETUP -#line 101 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return SWITCH; } - YY_BREAK -case 54: -YY_RULE_SETUP -#line 102 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return TABLE; } - YY_BREAK -case 55: -YY_RULE_SETUP -#line 103 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return THIS; } - YY_BREAK -case 56: -YY_RULE_SETUP -#line 104 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return TRANSITION; } - YY_BREAK -case 57: -YY_RULE_SETUP -#line 105 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return TRUE; } - YY_BREAK -case 58: -YY_RULE_SETUP -#line 106 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return TYPEDEF; } - YY_BREAK -case 59: -YY_RULE_SETUP -#line 107 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return VARBIT; } - YY_BREAK -case 60: -YY_RULE_SETUP -#line 108 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return VOID; } - YY_BREAK -case 61: -YY_RULE_SETUP -#line 109 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return DONTCARE; } - YY_BREAK -case 62: -YY_RULE_SETUP -#line 110 "../frontends/p4/p4-lex.l" -{ - yylval.str = cstring(yytext); - BEGIN(NORMAL); - Util::ProgramStructure::SymbolKind kind = structure.lookupIdentifier(yylval.str); - switch (kind) - { - /* FIXME: if the type is a reserved keyword this doesn't work */ - case Util::ProgramStructure::SymbolKind::Identifier: - return IDENTIFIER; - case Util::ProgramStructure::SymbolKind::Type: - return TYPE; - case Util::ProgramStructure::SymbolKind::Namespace: - return NAMESPACE; - default: - BUG("Unexpected symbol kind"); - } - } - YY_BREAK -case 63: -YY_RULE_SETUP -#line 128 "../frontends/p4/p4-lex.l" -{ yylval.Constant = new IR::Constant(yylloc, Util::cvtInt(yytext+2, 16), 16); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 64: -YY_RULE_SETUP -#line 130 "../frontends/p4/p4-lex.l" -{ yylval.Constant = new IR::Constant(yylloc, Util::cvtInt(yytext+2, 10), 10); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 65: -YY_RULE_SETUP -#line 132 "../frontends/p4/p4-lex.l" -{ yylval.Constant = new IR::Constant(yylloc, Util::cvtInt(yytext+2, 8), 8); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 66: -YY_RULE_SETUP -#line 134 "../frontends/p4/p4-lex.l" -{ yylval.Constant = new IR::Constant(yylloc, Util::cvtInt(yytext+2, 2), 2); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 67: -YY_RULE_SETUP -#line 136 "../frontends/p4/p4-lex.l" -{ yylval.Constant = new IR::Constant(yylloc, Util::cvtInt(yytext, 10), 10); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 68: -YY_RULE_SETUP -#line 139 "../frontends/p4/p4-lex.l" -{ yylval.Constant = cvtCst(yylloc, yytext, 2, 16); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 69: -YY_RULE_SETUP -#line 141 "../frontends/p4/p4-lex.l" -{ yylval.Constant = cvtCst(yylloc, yytext, 2, 10); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 70: -YY_RULE_SETUP -#line 143 "../frontends/p4/p4-lex.l" -{ yylval.Constant = cvtCst(yylloc, yytext, 2, 8); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 71: -YY_RULE_SETUP -#line 145 "../frontends/p4/p4-lex.l" -{ yylval.Constant = cvtCst(yylloc, yytext, 2, 2); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 72: -YY_RULE_SETUP -#line 147 "../frontends/p4/p4-lex.l" -{ yylval.Constant = cvtCst(yylloc, yytext, 0, 10); - BEGIN(NORMAL); return INTEGER; } - YY_BREAK -case 73: -YY_RULE_SETUP -#line 150 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return MASK; } - YY_BREAK -case 74: -YY_RULE_SETUP -#line 151 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return RANGE; } - YY_BREAK -case 75: -YY_RULE_SETUP -#line 152 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return SHL; } - YY_BREAK -case 76: -YY_RULE_SETUP -#line 153 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return AND; } - YY_BREAK -case 77: -YY_RULE_SETUP -#line 154 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return OR; } - YY_BREAK -case 78: -YY_RULE_SETUP -#line 155 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return EQ; } - YY_BREAK -case 79: -YY_RULE_SETUP -#line 156 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return NE; } - YY_BREAK -case 80: -YY_RULE_SETUP -#line 157 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return GE; } - YY_BREAK -case 81: -YY_RULE_SETUP -#line 158 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return LE; } - YY_BREAK -case 82: -YY_RULE_SETUP -#line 159 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return PP; } - YY_BREAK -case 83: -YY_RULE_SETUP -#line 161 "../frontends/p4/p4-lex.l" -{ BEGIN(NORMAL); return *yytext; } - YY_BREAK -case 84: -YY_RULE_SETUP -#line 163 "../frontends/p4/p4-lex.l" -ECHO; - YY_BREAK -#line 1395 "" -case YY_STATE_EOF(INITIAL): -case YY_STATE_EOF(STRING): - yyterminate(); - - case YY_END_OF_BUFFER: - { - /* Amount of text matched not including the EOB char. */ - int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; - - /* Undo the effects of YY_DO_BEFORE_ACTION. */ - *yy_cp = (yy_hold_char); - YY_RESTORE_YY_MORE_OFFSET - - if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) - { - /* We're scanning a new file or input source. It's - * possible that this happened because the user - * just pointed yyin at a new source and called - * yylex(). If so, then we have to assure - * consistency between YY_CURRENT_BUFFER and our - * globals. Here is the right place to do so, because - * this is the first action (other than possibly a - * back-up) that will match for the new input source. - */ - (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; - YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; - YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; - } - - /* Note that here we test for yy_c_buf_p "<=" to the position - * of the first EOB in the buffer, since yy_c_buf_p will - * already have been incremented past the NUL character - * (since all states make transitions on EOB to the - * end-of-buffer state). Contrast this with the test - * in input(). - */ - if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) - { /* This was really a NUL. */ - yy_state_type yy_next_state; - - (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; - - yy_current_state = yy_get_previous_state( ); - - /* Okay, we're now positioned to make the NUL - * transition. We couldn't have - * yy_get_previous_state() go ahead and do it - * for us because it doesn't know how to deal - * with the possibility of jamming (and we don't - * want to build jamming into it because then it - * will run more slowly). - */ - - yy_next_state = yy_try_NUL_trans( yy_current_state ); - - yy_bp = (yytext_ptr) + YY_MORE_ADJ; - - if ( yy_next_state ) - { - /* Consume the NUL. */ - yy_cp = ++(yy_c_buf_p); - yy_current_state = yy_next_state; - goto yy_match; - } - - else - { - yy_cp = (yy_c_buf_p); - goto yy_find_action; - } - } - - else switch ( yy_get_next_buffer( ) ) - { - case EOB_ACT_END_OF_FILE: - { - (yy_did_buffer_switch_on_eof) = 0; - - if ( yywrap( ) ) - { - /* Note: because we've taken care in - * yy_get_next_buffer() to have set up - * yytext, we can now set up - * yy_c_buf_p so that if some total - * hoser (like flex itself) wants to - * call the scanner after we return the - * YY_NULL, it'll still work - another - * YY_NULL will get returned. - */ - (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; - - yy_act = YY_STATE_EOF(YY_START); - goto do_action; - } - - else - { - if ( ! (yy_did_buffer_switch_on_eof) ) - YY_NEW_FILE; - } - break; - } - - case EOB_ACT_CONTINUE_SCAN: - (yy_c_buf_p) = - (yytext_ptr) + yy_amount_of_matched_text; - - yy_current_state = yy_get_previous_state( ); - - yy_cp = (yy_c_buf_p); - yy_bp = (yytext_ptr) + YY_MORE_ADJ; - goto yy_match; - - case EOB_ACT_LAST_MATCH: - (yy_c_buf_p) = - &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; - - yy_current_state = yy_get_previous_state( ); - - yy_cp = (yy_c_buf_p); - yy_bp = (yytext_ptr) + YY_MORE_ADJ; - goto yy_find_action; - } - break; - } - - default: - YY_FATAL_ERROR( - "fatal flex scanner internal error--no action found" ); - } /* end of action switch */ - } /* end of scanning one token */ - } /* end of user's declarations */ -} /* end of yylex */ - -/* yy_get_next_buffer - try to read in a new buffer - * - * Returns a code representing an action: - * EOB_ACT_LAST_MATCH - - * EOB_ACT_CONTINUE_SCAN - continue scanning from current position - * EOB_ACT_END_OF_FILE - end of file - */ -static int yy_get_next_buffer (void) -{ - char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; - char *source = (yytext_ptr); - int number_to_move, i; - int ret_val; - - if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) - YY_FATAL_ERROR( - "fatal flex scanner internal error--end of buffer missed" ); - - if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) - { /* Don't try to fill the buffer, so this is an EOF. */ - if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) - { - /* We matched a single character, the EOB, so - * treat this as a final EOF. - */ - return EOB_ACT_END_OF_FILE; - } - - else - { - /* We matched some text prior to the EOB, first - * process it. - */ - return EOB_ACT_LAST_MATCH; - } - } - - /* Try to read more data. */ - - /* First move last chars to start of buffer. */ - number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1); - - for ( i = 0; i < number_to_move; ++i ) - *(dest++) = *(source++); - - if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) - /* don't do the read, it's not guaranteed to return an EOF, - * just force an EOF - */ - YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; - - else - { - int num_to_read = - YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; - - while ( num_to_read <= 0 ) - { /* Not enough room in the buffer - grow it. */ - - /* just a shorter name for the current buffer */ - YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; - - int yy_c_buf_p_offset = - (int) ((yy_c_buf_p) - b->yy_ch_buf); - - if ( b->yy_is_our_buffer ) - { - int new_size = b->yy_buf_size * 2; - - if ( new_size <= 0 ) - b->yy_buf_size += b->yy_buf_size / 8; - else - b->yy_buf_size *= 2; - - b->yy_ch_buf = (char *) - /* Include room in for 2 EOB chars. */ - yyrealloc((void *) b->yy_ch_buf,(yy_size_t) (b->yy_buf_size + 2) ); - } - else - /* Can't grow it, we don't own it. */ - b->yy_ch_buf = NULL; - - if ( ! b->yy_ch_buf ) - YY_FATAL_ERROR( - "fatal error - scanner input buffer overflow" ); - - (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; - - num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - - number_to_move - 1; - - } - - if ( num_to_read > YY_READ_BUF_SIZE ) - num_to_read = YY_READ_BUF_SIZE; - - /* Read in more data. */ - YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), - (yy_n_chars), num_to_read ); - - YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); - } - - if ( (yy_n_chars) == 0 ) - { - if ( number_to_move == YY_MORE_ADJ ) - { - ret_val = EOB_ACT_END_OF_FILE; - yyrestart(yyin ); - } - - else - { - ret_val = EOB_ACT_LAST_MATCH; - YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = - YY_BUFFER_EOF_PENDING; - } - } - - else - ret_val = EOB_ACT_CONTINUE_SCAN; - - if (((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { - /* Extend the array by 50%, plus the number we really need. */ - int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,(yy_size_t) new_size ); - if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) - YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); - } - - (yy_n_chars) += number_to_move; - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; - - (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; - - return ret_val; -} - -/* yy_get_previous_state - get the state just before the EOB char was reached */ - - static yy_state_type yy_get_previous_state (void) -{ - yy_state_type yy_current_state; - char *yy_cp; - - yy_current_state = (yy_start); - - for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) - { - YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); - if ( yy_accept[yy_current_state] ) - { - (yy_last_accepting_state) = yy_current_state; - (yy_last_accepting_cpos) = yy_cp; - } - while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) - { - yy_current_state = (int) yy_def[yy_current_state]; - if ( yy_current_state >= 264 ) - yy_c = yy_meta[yy_c]; - } - yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; - } - - return yy_current_state; -} - -/* yy_try_NUL_trans - try to make a transition on the NUL character - * - * synopsis - * next_state = yy_try_NUL_trans( current_state ); - */ - static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) -{ - int yy_is_jam; - char *yy_cp = (yy_c_buf_p); - - YY_CHAR yy_c = 1; - if ( yy_accept[yy_current_state] ) - { - (yy_last_accepting_state) = yy_current_state; - (yy_last_accepting_cpos) = yy_cp; - } - while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) - { - yy_current_state = (int) yy_def[yy_current_state]; - if ( yy_current_state >= 264 ) - yy_c = yy_meta[yy_c]; - } - yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; - yy_is_jam = (yy_current_state == 263); - - return yy_is_jam ? 0 : yy_current_state; -} - -#ifndef YY_NO_UNPUT - -#endif - -#ifndef YY_NO_INPUT -#ifdef __cplusplus - static int yyinput (void) -#else - static int input (void) -#endif - -{ - int c; - - *(yy_c_buf_p) = (yy_hold_char); - - if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) - { - /* yy_c_buf_p now points to the character we want to return. - * If this occurs *before* the EOB characters, then it's a - * valid NUL; if not, then we've hit the end of the buffer. - */ - if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) - /* This was really a NUL. */ - *(yy_c_buf_p) = '\0'; - - else - { /* need more input */ - int offset = (int) ((yy_c_buf_p) - (yytext_ptr)); - ++(yy_c_buf_p); - - switch ( yy_get_next_buffer( ) ) - { - case EOB_ACT_LAST_MATCH: - /* This happens because yy_g_n_b() - * sees that we've accumulated a - * token and flags that we need to - * try matching the token before - * proceeding. But for input(), - * there's no matching to consider. - * So convert the EOB_ACT_LAST_MATCH - * to EOB_ACT_END_OF_FILE. - */ - - /* Reset buffer status. */ - yyrestart(yyin ); - - /*FALLTHROUGH*/ - - case EOB_ACT_END_OF_FILE: - { - if ( yywrap( ) ) - return 0; - - if ( ! (yy_did_buffer_switch_on_eof) ) - YY_NEW_FILE; -#ifdef __cplusplus - return yyinput(); -#else - return input(); -#endif - } - - case EOB_ACT_CONTINUE_SCAN: - (yy_c_buf_p) = (yytext_ptr) + offset; - break; - } - } - } - - c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ - *(yy_c_buf_p) = '\0'; /* preserve yytext */ - (yy_hold_char) = *++(yy_c_buf_p); - - return c; -} -#endif /* ifndef YY_NO_INPUT */ - -/** Immediately switch to a different input stream. - * @param input_file A readable stream. - * - * @note This function does not reset the start condition to @c INITIAL . - */ - void yyrestart (FILE * input_file ) -{ - - if ( ! YY_CURRENT_BUFFER ){ - yyensure_buffer_stack (); - YY_CURRENT_BUFFER_LVALUE = - yy_create_buffer(yyin,YY_BUF_SIZE ); - } - - yy_init_buffer(YY_CURRENT_BUFFER,input_file ); - yy_load_buffer_state( ); -} - -/** Switch to a different input buffer. - * @param new_buffer The new input buffer. - * - */ - void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) -{ - - /* TODO. We should be able to replace this entire function body - * with - * yypop_buffer_state(); - * yypush_buffer_state(new_buffer); - */ - yyensure_buffer_stack (); - if ( YY_CURRENT_BUFFER == new_buffer ) - return; - - if ( YY_CURRENT_BUFFER ) - { - /* Flush out information for old buffer. */ - *(yy_c_buf_p) = (yy_hold_char); - YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); - YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); - } - - YY_CURRENT_BUFFER_LVALUE = new_buffer; - yy_load_buffer_state( ); - - /* We don't actually know whether we did this switch during - * EOF (yywrap()) processing, but the only time this flag - * is looked at is after yywrap() is called, so it's safe - * to go ahead and always set it. - */ - (yy_did_buffer_switch_on_eof) = 1; -} - -static void yy_load_buffer_state (void) -{ - (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; - (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; - yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; - (yy_hold_char) = *(yy_c_buf_p); -} - -/** Allocate and initialize an input buffer state. - * @param file A readable stream. - * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. - * - * @return the allocated buffer state. - */ - YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) -{ - YY_BUFFER_STATE b; - - b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); - if ( ! b ) - YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); - - b->yy_buf_size = size; - - /* yy_ch_buf has to be 2 characters longer than the size given because - * we need to put in 2 end-of-buffer characters. - */ - b->yy_ch_buf = (char *) yyalloc((yy_size_t) (b->yy_buf_size + 2) ); - if ( ! b->yy_ch_buf ) - YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); - - b->yy_is_our_buffer = 1; - - yy_init_buffer(b,file ); - - return b; -} - -/** Destroy the buffer. - * @param b a buffer created with yy_create_buffer() - * - */ - void yy_delete_buffer (YY_BUFFER_STATE b ) -{ - - if ( ! b ) - return; - - if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ - YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; - - if ( b->yy_is_our_buffer ) - yyfree((void *) b->yy_ch_buf ); - - yyfree((void *) b ); -} - -/* Initializes or reinitializes a buffer. - * This function is sometimes called more than once on the same buffer, - * such as during a yyrestart() or at EOF. - */ - static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) - -{ - int oerrno = errno; - - yy_flush_buffer(b ); - - b->yy_input_file = file; - b->yy_fill_buffer = 1; - - /* If b is the current buffer, then yy_init_buffer was _probably_ - * called from yyrestart() or through yy_get_next_buffer. - * In that case, we don't want to reset the lineno or column. - */ - if (b != YY_CURRENT_BUFFER){ - b->yy_bs_lineno = 1; - b->yy_bs_column = 0; - } - - b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; - - errno = oerrno; -} - -/** Discard all buffered characters. On the next scan, YY_INPUT will be called. - * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. - * - */ - void yy_flush_buffer (YY_BUFFER_STATE b ) -{ - if ( ! b ) - return; - - b->yy_n_chars = 0; - - /* We always need two end-of-buffer characters. The first causes - * a transition to the end-of-buffer state. The second causes - * a jam in that state. - */ - b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; - b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; - - b->yy_buf_pos = &b->yy_ch_buf[0]; - - b->yy_at_bol = 1; - b->yy_buffer_status = YY_BUFFER_NEW; - - if ( b == YY_CURRENT_BUFFER ) - yy_load_buffer_state( ); -} - -/** Pushes the new state onto the stack. The new state becomes - * the current state. This function will allocate the stack - * if necessary. - * @param new_buffer The new state. - * - */ -void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) -{ - if (new_buffer == NULL) - return; - - yyensure_buffer_stack(); - - /* This block is copied from yy_switch_to_buffer. */ - if ( YY_CURRENT_BUFFER ) - { - /* Flush out information for old buffer. */ - *(yy_c_buf_p) = (yy_hold_char); - YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); - YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); - } - - /* Only push if top exists. Otherwise, replace top. */ - if (YY_CURRENT_BUFFER) - (yy_buffer_stack_top)++; - YY_CURRENT_BUFFER_LVALUE = new_buffer; - - /* copied from yy_switch_to_buffer. */ - yy_load_buffer_state( ); - (yy_did_buffer_switch_on_eof) = 1; -} - -/** Removes and deletes the top of the stack, if present. - * The next element becomes the new top. - * - */ -void yypop_buffer_state (void) -{ - if (!YY_CURRENT_BUFFER) - return; - - yy_delete_buffer(YY_CURRENT_BUFFER ); - YY_CURRENT_BUFFER_LVALUE = NULL; - if ((yy_buffer_stack_top) > 0) - --(yy_buffer_stack_top); - - if (YY_CURRENT_BUFFER) { - yy_load_buffer_state( ); - (yy_did_buffer_switch_on_eof) = 1; - } -} - -/* Allocates the stack if it does not exist. - * Guarantees space for at least one push. - */ -static void yyensure_buffer_stack (void) -{ - yy_size_t num_to_alloc; - - if (!(yy_buffer_stack)) { - - /* First allocation is just for 2 elements, since we don't know if this - * scanner will even need a stack. We use 2 instead of 1 to avoid an - * immediate realloc on the next call. - */ - num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */ - (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc - (num_to_alloc * sizeof(struct yy_buffer_state*) - ); - if ( ! (yy_buffer_stack) ) - YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); - - memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); - - (yy_buffer_stack_max) = num_to_alloc; - (yy_buffer_stack_top) = 0; - return; - } - - if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ - - /* Increase the buffer to prepare for a possible push. */ - yy_size_t grow_size = 8 /* arbitrary grow size */; - - num_to_alloc = (yy_buffer_stack_max) + grow_size; - (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc - ((yy_buffer_stack), - num_to_alloc * sizeof(struct yy_buffer_state*) - ); - if ( ! (yy_buffer_stack) ) - YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); - - /* zero only the new slots.*/ - memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); - (yy_buffer_stack_max) = num_to_alloc; - } -} - -/** Setup the input buffer state to scan directly from a user-specified character buffer. - * @param base the character buffer - * @param size the size in bytes of the character buffer - * - * @return the newly allocated buffer state object. - */ -YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) -{ - YY_BUFFER_STATE b; - - if ( size < 2 || - base[size-2] != YY_END_OF_BUFFER_CHAR || - base[size-1] != YY_END_OF_BUFFER_CHAR ) - /* They forgot to leave room for the EOB's. */ - return NULL; - - b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); - if ( ! b ) - YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); - - b->yy_buf_size = (int) (size - 2); /* "- 2" to take care of EOB's */ - b->yy_buf_pos = b->yy_ch_buf = base; - b->yy_is_our_buffer = 0; - b->yy_input_file = NULL; - b->yy_n_chars = b->yy_buf_size; - b->yy_is_interactive = 0; - b->yy_at_bol = 1; - b->yy_fill_buffer = 0; - b->yy_buffer_status = YY_BUFFER_NEW; - - yy_switch_to_buffer(b ); - - return b; -} - -/** Setup the input buffer state to scan a string. The next call to yylex() will - * scan from a @e copy of @a str. - * @param yystr a NUL-terminated string to scan - * - * @return the newly allocated buffer state object. - * @note If you want to scan bytes that may contain NUL values, then use - * yy_scan_bytes() instead. - */ -YY_BUFFER_STATE yy_scan_string (yyconst char * yystr ) -{ - - return yy_scan_bytes(yystr,(int) strlen(yystr) ); -} - -/** Setup the input buffer state to scan the given bytes. The next call to yylex() will - * scan from a @e copy of @a bytes. - * @param yybytes the byte buffer to scan - * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. - * - * @return the newly allocated buffer state object. - */ -YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, int _yybytes_len ) -{ - YY_BUFFER_STATE b; - char *buf; - yy_size_t n; - int i; - - /* Get memory for full buffer, including space for trailing EOB's. */ - n = (yy_size_t) (_yybytes_len + 2); - buf = (char *) yyalloc(n ); - if ( ! buf ) - YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); - - for ( i = 0; i < _yybytes_len; ++i ) - buf[i] = yybytes[i]; - - buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; - - b = yy_scan_buffer(buf,n ); - if ( ! b ) - YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); - - /* It's okay to grow etc. this buffer, and we should throw it - * away when we're done. - */ - b->yy_is_our_buffer = 1; - - return b; -} - -#ifndef YY_EXIT_FAILURE -#define YY_EXIT_FAILURE 2 -#endif - -static void yynoreturn yy_fatal_error (yyconst char* msg ) -{ - (void) fprintf( stderr, "%s\n", msg ); - exit( YY_EXIT_FAILURE ); -} - -/* Redefine yyless() so it works in section 3 code. */ - -#undef yyless -#define yyless(n) \ - do \ - { \ - /* Undo effects of setting up yytext. */ \ - int yyless_macro_arg = (n); \ - YY_LESS_LINENO(yyless_macro_arg);\ - yytext[yyleng] = (yy_hold_char); \ - (yy_c_buf_p) = yytext + yyless_macro_arg; \ - (yy_hold_char) = *(yy_c_buf_p); \ - *(yy_c_buf_p) = '\0'; \ - yyleng = yyless_macro_arg; \ - } \ - while ( 0 ) - -/* Accessor methods (get/set functions) to struct members. */ - -/** Get the current token. - * - */ - -static int yy_init_globals (void) -{ - /* Initialization is the same as for the non-reentrant scanner. - * This function is called from yylex_destroy(), so don't allocate here. - */ - - (yy_buffer_stack) = NULL; - (yy_buffer_stack_top) = 0; - (yy_buffer_stack_max) = 0; - (yy_c_buf_p) = NULL; - (yy_init) = 0; - (yy_start) = 0; - -/* Defined in main.c */ -#ifdef YY_STDINIT - yyin = stdin; - yyout = stdout; -#else - yyin = NULL; - yyout = NULL; -#endif - - /* For future reference: Set errno on error, since we are called by - * yylex_init() - */ - return 0; -} - -/* yylex_destroy is for both reentrant and non-reentrant scanners. */ -int yylex_destroy (void) -{ - - /* Pop the buffer stack, destroying each element. */ - while(YY_CURRENT_BUFFER){ - yy_delete_buffer(YY_CURRENT_BUFFER ); - YY_CURRENT_BUFFER_LVALUE = NULL; - yypop_buffer_state(); - } - - /* Destroy the stack itself. */ - yyfree((yy_buffer_stack) ); - (yy_buffer_stack) = NULL; - - /* Reset the globals. This is important in a non-reentrant scanner so the next time - * yylex() is called, initialization will occur. */ - yy_init_globals( ); - - return 0; -} - -/* - * Internal utility routines. - */ - -#ifndef yytext_ptr -static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) -{ - - int i; - for ( i = 0; i < n; ++i ) - s1[i] = s2[i]; -} -#endif - -#ifdef YY_NEED_STRLEN -static int yy_flex_strlen (yyconst char * s ) -{ - int n; - for ( n = 0; s[n]; ++n ) - ; - - return n; -} -#endif - -void *yyalloc (yy_size_t size ) -{ - return malloc(size); -} - -void *yyrealloc (void * ptr, yy_size_t size ) -{ - - /* The cast to (char *) in the following accommodates both - * implementations that use char* generic pointers, and those - * that use void* generic pointers. It works with the latter - * because both ANSI C and C++ allow castless assignment from - * any pointer type to void*, and deal with argument conversions - * as though doing an assignment. - */ - return realloc(ptr, size); -} - -void yyfree (void * ptr ) -{ - free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ -} - -#define YYTABLES_NAME "yytables" - -#line 163 "../frontends/p4/p4-lex.l" - - - diff --git a/frontends/p4/simplifyExpressions.cpp b/frontends/p4/simplifyExpressions.cpp deleted file mode 100644 index a21512a658..0000000000 --- a/frontends/p4/simplifyExpressions.cpp +++ /dev/null @@ -1,523 +0,0 @@ -/* -Copyright 2016 VMware, Inc. - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. -*/ - -#include "simplifyExpressions.h" -#include "frontends/p4/simplify.h" -#include "frontends/p4/tableApply.h" - -namespace P4 { - -namespace { - -// Data structure used for making explicit the order of evaluation of -// sub-expressions in an expression. -// An expression e will be represented as a sequence of temporary declarations, -// followed by a sequence of statements (mostly assignments to the temporaries, -// but which could also include conditionals for short-circuit evaluation), -// followed by an expression involving the temporaries. -struct EvaluationOrder { - ReferenceMap* refMap; - const IR::Expression* final; // output - // Declaration instead of Declaration_Variable so it can be more easily inserted - // in the program IR. - IR::IndexedVector *temporaries; - IR::IndexedVector *statements; - - EvaluationOrder(ReferenceMap* refMap) : refMap(refMap), final(nullptr), - temporaries(new IR::IndexedVector()), - statements(new IR::IndexedVector()) - { CHECK_NULL(refMap); } - bool simple() const - { return temporaries->empty() && statements->empty(); } - - cstring createTemporary(const IR::Type* type) { - auto tmp = refMap->newName("tmp"); - auto decl = new IR::Declaration_Variable( - Util::SourceInfo(), IR::ID(tmp), IR::Annotations::empty, type, nullptr); - temporaries->push_back(decl); - return tmp; - } - - const IR::Expression* addAssignment(cstring varName, const IR::Expression* expression) { - auto left = new IR::PathExpression(IR::ID(varName)); - auto stat = new IR::AssignmentStatement(Util::SourceInfo(), left, expression); - statements->push_back(stat); - auto result = left->clone(); - return result; - } -}; - -class DismantleExpression : public Transform { - ReferenceMap* refMap; - TypeMap* typeMap; - EvaluationOrder *result; - bool leftValue; // true when we are dismantling a left-value - bool resultNotUsed; // true when the caller does not want the result (i.e., - // we are invoked from a MethodCallStatement. - - // catch-all case - const IR::Node* postorder(IR::Expression* expression) override { - LOG1("Visiting " << dbp(expression)); - auto orig = getOriginal(); - auto type = typeMap->getType(orig, true); - typeMap->setType(expression, type); - if (typeMap->isLeftValue(orig)) - typeMap->setLeftValue(expression); - if (typeMap->isCompileTimeConstant(orig)) - typeMap->setCompileTimeConstant(expression); - result->final = expression; - return result->final; - } - - const IR::Node* preorder(IR::Literal* expression) override { - result->final = expression; - prune(); - return expression; - } - - const IR::Node* preorder(IR::ArrayIndex* expression) override { - LOG1("Visiting " << dbp(expression)); - auto type = typeMap->getType(getOriginal(), true); - visit(expression->left); - auto left = result->final; - CHECK_NULL(left); - bool save = leftValue; - leftValue = false; - visit(expression->right); - auto right = result->final; - CHECK_NULL(right); - leftValue = save; - result->final = new IR::ArrayIndex(expression->srcInfo, left, right); - typeMap->setType(result->final, type); - if (leftValue) - typeMap->setLeftValue(result->final); - prune(); - return result->final; - } - - const IR::Node* preorder(IR::Member* expression) override { - LOG1("Visiting " << dbp(expression)); - auto type = typeMap->getType(getOriginal(), true); - visit(expression->expr); - auto left = result->final; - CHECK_NULL(left); - result->final = new IR::Member(expression->srcInfo, left, expression->member); - typeMap->setType(result->final, type); - if (leftValue) - typeMap->setLeftValue(result->final); - prune(); - return result->final; - } - - const IR::Node* preorder(IR::SelectExpression* expression) override { - LOG1("Visiting " << dbp(expression)); - visit(expression->select); - prune(); - result->final = expression; - return expression; - } - - const IR::Node* preorder(IR::Operation_Unary* expression) override { - LOG1("Visiting " << dbp(expression)); - auto type = typeMap->getType(getOriginal(), true); - visit(expression->expr); - auto left = result->final; - CHECK_NULL(left); - auto clone = expression->clone(); - clone->expr = left; - typeMap->setType(clone, type); - result->final = clone; - prune(); - return result->final; - } - - const IR::Node* preorder(IR::Operation_Binary* expression) override { - LOG1("Visiting " << dbp(expression)); - auto type = typeMap->getType(getOriginal(), true); - visit(expression->left); - auto left = result->final; - CHECK_NULL(left); - visit(expression->right); - auto right = result->final; - auto clone = expression->clone(); - clone->left = left; - clone->right = right; - typeMap->setType(clone, type); - auto tmp = result->createTemporary(type); - auto path = result->addAssignment(tmp, clone); - typeMap->setType(path, type); - result->final = path; - prune(); - return result->final; - } - - const IR::Node* shortCircuit(IR::Operation_Binary* expression) { - LOG1("Visiting " << dbp(expression)); - auto type = typeMap->getType(getOriginal(), true); - visit(expression->left); - auto cond = result->final; - CHECK_NULL(cond); - - // e1 && e2 - // becomes roughly: - // if (!simplify(e1)) - // tmp = false; - // else - // tmp = simplify(e2); - - bool land = expression->is(); - auto constant = new IR::BoolLiteral(Util::SourceInfo(), !land); - auto tmp = result->createTemporary(type); - auto ifTrue = new IR::AssignmentStatement(Util::SourceInfo(), new IR::PathExpression(IR::ID(tmp)), constant); - auto ifFalse = new IR::IndexedVector(); - - auto save = result->statements; - result->statements = ifFalse; - visit(expression->right); - auto path = result->addAssignment(tmp, result->final); - result->statements = save; - if (land) { - cond = new IR::LNot(Util::SourceInfo(), cond); - typeMap->setType(cond, type); - } - auto block = new IR::BlockStatement(Util::SourceInfo(), ifFalse); - auto ifStatement = new IR::IfStatement(Util::SourceInfo(), cond, ifTrue, block); - result->statements->push_back(ifStatement); - result->final = path->clone(); - typeMap->setType(result->final, type); - - prune(); - return result->final; - } - - const IR::Node* preorder(IR::Mux* expression) override { - LOG1("Visiting " << dbp(expression)); - auto type = typeMap->getType(getOriginal(), true); - visit(expression->e0); - auto e0 = result->final; - CHECK_NULL(e0); - auto tmp = result->createTemporary(type); - - auto save = result->statements; - auto ifTrue = new IR::IndexedVector(); - result->statements = ifTrue; - visit(expression->e1); - (void)result->addAssignment(tmp, result->final); - - auto ifFalse = new IR::IndexedVector(); - result->statements = ifFalse; - visit(expression->e2); - auto path = result->addAssignment(tmp, result->final); - result->statements = save; - - auto ifStatement = new IR::IfStatement(Util::SourceInfo(), e0, - new IR::BlockStatement(Util::SourceInfo(), ifTrue), - new IR::BlockStatement(Util::SourceInfo(), ifFalse)); - result->statements->push_back(ifStatement); - result->final = path->clone(); - typeMap->setType(result->final, type); - prune(); - return result->final; - } - - const IR::Node* preorder(IR::LAnd* expression) override { return shortCircuit(expression); } - const IR::Node* preorder(IR::LOr* expression) override { return shortCircuit(expression); } - - const IR::Node* postorder(IR::Member* expression) override { - LOG1("Visiting " << dbp(expression)); - auto orig = getOriginal(); - result->final = expression; - if (typeMap->isLeftValue(orig)) - typeMap->setLeftValue(result->final); - if (typeMap->isCompileTimeConstant(orig)) - typeMap->setCompileTimeConstant(orig); - return result->final; - } - - const IR::Node* preorder(IR::MethodCallExpression* mce) override { - BUG_CHECK(!leftValue, "%1%: method on left hand side?", mce); - LOG1("Visiting " << mce); - auto orig = getOriginal(); - auto type = typeMap->getType(orig, true); - if (!SideEffects::check(orig, refMap, typeMap)) { - result->final = mce; - return mce; - } - - auto copyBack = new IR::IndexedVector(); - auto args = new IR::Vector(); - MethodCallDescription desc(orig, refMap, typeMap); - bool useTemporaries = false; - bool savelv = leftValue; - bool savenu = resultNotUsed; - resultNotUsed = false; - for (auto a : mce->arguments) { - if (SideEffects::check(a, refMap, typeMap)) { - useTemporaries = true; - break; - } - } - for (auto p : *desc.substitution.getParameters()) { - if (p->direction == IR::Direction::InOut || - p->direction == IR::Direction::Out) { - useTemporaries = true; - break; - } - } - - visit(mce->method); - auto method = result->final; - - for (auto p : *desc.substitution.getParameters()) { - auto arg = desc.substitution.lookup(p); - if (p->direction == IR::Direction::None) { - args->push_back(arg); - continue; - } - - LOG1("Transforming " << arg << " for " << p); - if (p->direction == IR::Direction::In) - leftValue = false; - else - leftValue = true; - auto paramtype = typeMap->getType(p, true); - const IR::Expression* argValue; - visit(arg); - auto newarg = result->final; - CHECK_NULL(newarg); - - if (useTemporaries && !typeMap->isCompileTimeConstant(newarg)) { - // declare temporary variable - auto tmp = refMap->newName("tmp"); - argValue = new IR::PathExpression(IR::ID(tmp)); - auto decl = new IR::Declaration_Variable( - Util::SourceInfo(), IR::ID(tmp), IR::Annotations::empty, paramtype, nullptr); - result->temporaries->push_back(decl); - if (p->direction != IR::Direction::Out) { - // assign temporary before method call - auto clone = argValue->clone(); - auto stat = new IR::AssignmentStatement( - Util::SourceInfo(), clone, newarg); - LOG1(clone << " = " << newarg); - result->statements->push_back(stat); - typeMap->setType(clone, paramtype); - typeMap->setLeftValue(clone); - } - } else { - argValue = newarg; - } - if (leftValue && useTemporaries && newarg != arg) { - auto assign = new IR::AssignmentStatement( - Util::SourceInfo(), newarg, argValue->clone()); - copyBack->push_back(assign); - LOG1("Will copy out value " << assign); - } - args->push_back(argValue); - } - leftValue = savelv; - resultNotUsed = savenu; - - // Special handling for table.apply(...).X; - // we cannot generate a temporary for the apply: - // tmp = table.apply(), since we cannot write down the type of tmp - bool tbl_apply = false; - auto ctx = getContext(); - if (ctx != nullptr && ctx->node->is()) { - auto mmbr = ctx->node->to(); - auto tbl = TableApplySolver::isActionRun(mmbr, refMap, typeMap); - auto tbl1 = TableApplySolver::isHit(mmbr, refMap, typeMap); - tbl_apply = tbl != nullptr || tbl1 != nullptr; - } - auto simplified = new IR::MethodCallExpression(mce->srcInfo, method, mce->typeArguments, args); - typeMap->setType(simplified, type); - result->final = simplified; - if (!type->is() && // no return type - !tbl_apply && // not a table.apply call - !resultNotUsed) { - auto tmp = refMap->newName("tmp"); - auto decl = new IR::Declaration_Variable( - Util::SourceInfo(), IR::ID(tmp), IR::Annotations::empty, - type, nullptr); - result->temporaries->push_back(decl); - auto left = new IR::PathExpression(IR::ID(tmp)); - auto stat = new IR::AssignmentStatement( - Util::SourceInfo(), left, simplified); - result->statements->push_back(stat); - result->final = left->clone(); - typeMap->setType(result->final, type); - LOG1(mce << " replaced with " << left << " = " << simplified); - } else { - if (tbl_apply) - result->final = simplified; - else { - result->statements->push_back(new IR::MethodCallStatement(mce->srcInfo, simplified)); - result->final = nullptr; - } - } - result->statements->append(*copyBack); - prune(); - return result->final; - } - - public: - DismantleExpression(ReferenceMap* refMap, TypeMap* typeMap) : - refMap(refMap), typeMap(typeMap), leftValue(false) { - CHECK_NULL(refMap); CHECK_NULL(typeMap); - result = new EvaluationOrder(refMap); - setName("DismantleExpressions"); - } - EvaluationOrder* dismantle(const IR::Expression* expression, bool isLeftValue, bool resultNotUsed=false) { - LOG1("Dismantling " << dbp(expression) << (isLeftValue ? " on left" : " on right")); - leftValue = isLeftValue; - this->resultNotUsed = resultNotUsed; - (void)expression->apply(*this); - LOG1("Result is " << result->final); - return result; - } -}; -} // namespace - -const IR::Node* DoSimplifyExpressions::postorder(IR::Function* function) { - if (toInsert.empty()) - return function; - auto locals = new IR::IndexedVector(); - for (auto a : toInsert) - locals->push_back(a); - for (auto s : *function->body->components) - locals->push_back(s); - function->body = new IR::BlockStatement(function->body->srcInfo, locals); - toInsert.clear(); - return function; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::P4Parser* parser) { - if (toInsert.empty()) - return parser; - auto locals = new IR::IndexedVector(*parser->parserLocals); - locals->append(toInsert); - parser->parserLocals = locals; - toInsert.clear(); - return parser; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::P4Control* control) { - if (toInsert.empty()) - return control; - auto locals = new IR::IndexedVector(*control->controlLocals); - locals->append(toInsert); - control->controlLocals = locals; - toInsert.clear(); - return control; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::P4Action* action) { - if (toInsert.empty()) - return action; - auto locals = new IR::IndexedVector(); - for (auto a : toInsert) - locals->push_back(a); - for (auto s : *action->body->components) - locals->push_back(s); - action->body = new IR::BlockStatement(action->body->srcInfo, locals); - toInsert.clear(); - return action; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::ParserState* state) { - if (state->selectExpression == nullptr) - return state; - DismantleExpression dm(refMap, typeMap); - auto parts = dm.dismantle(state->selectExpression, false); - CHECK_NULL(parts); - if (parts->simple()) - return state; - toInsert.append(*parts->temporaries); - auto comp = new IR::IndexedVector(*state->components); - comp->append(*parts->statements); - state->components = comp; - state->selectExpression = parts->final; - return state; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::AssignmentStatement* statement) { - DismantleExpression dm(refMap, typeMap); - auto left = dm.dismantle(statement->left, true)->final; - CHECK_NULL(left); - auto parts = dm.dismantle(statement->right, false); - CHECK_NULL(parts); - toInsert.append(*parts->temporaries); - auto right = parts->final; - CHECK_NULL(right); - parts->statements->push_back(new IR::AssignmentStatement(statement->srcInfo, left, right)); - auto block = new IR::BlockStatement(Util::SourceInfo(), parts->statements); - return block; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::MethodCallStatement* statement) { - DismantleExpression dm(refMap, typeMap); - auto parts = dm.dismantle(statement->methodCall, false, true); - CHECK_NULL(parts); - if (parts->simple()) - return statement; - toInsert.append(*parts->temporaries); - auto block = new IR::BlockStatement(Util::SourceInfo(), parts->statements); - return block; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::ReturnStatement* statement) { - if (statement->expression == nullptr) - return statement; - DismantleExpression dm(refMap, typeMap); - auto parts = dm.dismantle(statement->expression, false); - CHECK_NULL(parts); - if (parts->simple()) - return statement; - toInsert.append(*parts->temporaries); - auto expr = parts->final; - parts->statements->push_back(new IR::ReturnStatement(statement->srcInfo, expr)); - auto block = new IR::BlockStatement(Util::SourceInfo(), parts->statements); - return block; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::IfStatement* statement) { - DismantleExpression dm(refMap, typeMap); - auto parts = dm.dismantle(statement->condition, false); - CHECK_NULL(parts); - if (parts->simple()) - return statement; - toInsert.append(*parts->temporaries); - auto expr = parts->final; - parts->statements->push_back(new IR::IfStatement(statement->srcInfo, expr, - statement->ifTrue, statement->ifFalse)); - auto block = new IR::BlockStatement(Util::SourceInfo(), parts->statements); - return block; -} - -const IR::Node* DoSimplifyExpressions::postorder(IR::SwitchStatement* statement) { - DismantleExpression dm(refMap, typeMap); - auto parts = dm.dismantle(statement->expression, false); - CHECK_NULL(parts); - if (parts->simple()) - return statement; - toInsert.append(*parts->temporaries); - auto expr = parts->final; - parts->statements->push_back( - new IR::SwitchStatement(statement->srcInfo, expr, std::move(statement->cases))); - auto block = new IR::BlockStatement(Util::SourceInfo(), parts->statements); - return block; -} - -} // namespace P4