diff options
Diffstat (limited to 'utils/TableGen/FileLexer.cpp')
| -rw-r--r-- | utils/TableGen/FileLexer.cpp | 1936 |
1 files changed, 1936 insertions, 0 deletions
diff --git a/utils/TableGen/FileLexer.cpp b/utils/TableGen/FileLexer.cpp new file mode 100644 index 0000000000..700486db9b --- /dev/null +++ b/utils/TableGen/FileLexer.cpp @@ -0,0 +1,1936 @@ +#define yy_create_buffer File_create_buffer +#define yy_delete_buffer File_delete_buffer +#define yy_scan_buffer File_scan_buffer +#define yy_scan_string File_scan_string +#define yy_scan_bytes File_scan_bytes +#define yy_flex_debug File_flex_debug +#define yy_init_buffer File_init_buffer +#define yy_flush_buffer File_flush_buffer +#define yy_load_buffer_state File_load_buffer_state +#define yy_switch_to_buffer File_switch_to_buffer +#define yyin Filein +#define yyleng Fileleng +#define yylex Filelex +#define yyout Fileout +#define yyrestart Filerestart +#define yytext Filetext +#define yylineno Filelineno +#define yywrap Filewrap + +#line 21 "Lexer.cpp" +/* A lexical scanner generated by flex */ + +/* Scanner skeleton version: + * $Header$ + */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 + +#include <stdio.h> +#include <unistd.h> + + +/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ +#ifdef c_plusplus +#ifndef __cplusplus +#define __cplusplus +#endif +#endif + + +#ifdef __cplusplus + +#include <stdlib.h> + +/* Use prototypes in function declarations. */ +#define YY_USE_PROTOS + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +#if __STDC__ + +#define YY_USE_PROTOS +#define YY_USE_CONST + +#endif /* __STDC__ */ +#endif /* ! __cplusplus */ + +#ifdef __TURBOC__ + #pragma warn -rch + #pragma warn -use +#include <io.h> +#include <stdlib.h> +#define YY_USE_CONST +#define YY_USE_PROTOS +#endif + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + + +#ifdef YY_USE_PROTOS +#define YY_PROTO(proto) proto +#else +#define YY_PROTO(proto) () +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an unsigned + * integer for use as an array index. If the signed char is negative, + * we want to instead treat it as an 8-bit unsigned char, hence the + * double cast. + */ +#define YY_SC_TO_UI(c) ((unsigned int) (unsigned 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. */ +#define YY_BUF_SIZE (16384*64) + +typedef struct yy_buffer_state *YY_BUFFER_STATE; + +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 + +/* The funky do-while in the following #define is used to turn the definition + * int a single C statement (which needs a semi-colon terminator). This + * avoids problems with code like: + * + * if ( condition_holds ) + * yyless( 5 ); + * else + * do_something_else(); + * + * Prior to using the do-while the compiler would get upset at the + * "else" because it interpreted the "if" statement as being all + * done when it reached the ';' after the yyless() call. + */ + +/* Return all but the first 'n' matched characters back to the input stream. */ + +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + *yy_cp = yy_hold_char; \ + YY_RESTORE_YY_MORE_OFFSET \ + yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) + +#define unput(c) yyunput( c, yytext_ptr ) + +/* The following is because we cannot portably get our hands on size_t + * (without autoconf's help, which isn't available because we want + * flex-generated scanners to compile on their own). + */ +typedef unsigned int yy_size_t; + + +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. + */ + yy_size_t 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; + + /* 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 + }; + +static YY_BUFFER_STATE yy_current_buffer = 0; + +/* 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". + */ +#define YY_CURRENT_BUFFER yy_current_buffer + + +/* 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 = (char *) 0; +static int yy_init = 1; /* 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 YY_PROTO(( FILE *input_file )); + +void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer )); +void yy_load_buffer_state YY_PROTO(( void )); +YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size )); +void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b )); +void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file )); +void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b )); +#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer ) + +YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size )); +YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str )); +YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len )); + +static void *yy_flex_alloc YY_PROTO(( yy_size_t )); +static inline void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )); +static void yy_flex_free YY_PROTO(( void * )); + +#define yy_new_buffer yy_create_buffer + +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! yy_current_buffer ) \ + yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ + yy_current_buffer->yy_is_interactive = is_interactive; \ + } + +#define yy_set_bol(at_bol) \ + { \ + if ( ! yy_current_buffer ) \ + yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ + yy_current_buffer->yy_at_bol = at_bol; \ + } + +#define YY_AT_BOL() (yy_current_buffer->yy_at_bol) + + +#define YY_USES_REJECT +typedef unsigned char YY_CHAR; +FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; +typedef int yy_state_type; +extern int yylineno; +int yylineno = 1; +extern char *yytext; +#define yytext_ptr yytext + +static yy_state_type yy_get_previous_state YY_PROTO(( void )); +static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state )); +static int yy_get_next_buffer YY_PROTO(( void )); +static void yy_fatal_error YY_PROTO(( 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 31 +#define YY_END_OF_BUFFER 32 +static yyconst short int yy_acclist[129] = + { 0, + 25, 25, 32, 30, 31, 23, 30, 31, 23, 31, + 30, 31, 30, 31, 30, 31, 30, 31, 30, 31, + 22, 30, 31, 22, 30, 31, 19, 30, 31, 30, + 31, 19, 30, 31, 19, 30, 31, 19, 30, 31, + 19, 30, 31, 19, 30, 31, 19, 30, 31, 19, + 30, 31, 25, 31, 26, 31, 28, 31, 23, 21, + 20, 22, 24, 1, 19, 19, 19, 19, 19, 19, + 19, 15, 19, 19, 19, 19, 25, 26, 26, 29, + 28, 27, 28, 20, 1, 22, 22, 5, 19, 19, + 19, 10, 19, 12, 19, 19, 19, 4, 19, 14, + + 19, 19, 19, 18, 16, 17, 3, 6, 19, 19, + 9, 19, 19, 19, 8, 19, 19, 11, 19, 13, + 19, 19, 19, 19, 7, 19, 19, 2 + } ; + +static yyconst short int yy_accept[101] = + { 0, + 1, 1, 1, 2, 3, 4, 6, 9, 11, 13, + 15, 17, 19, 21, 24, 27, 30, 32, 35, 38, + 41, 44, 47, 50, 53, 55, 57, 59, 60, 60, + 60, 61, 62, 63, 64, 65, 65, 65, 66, 66, + 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, + 78, 79, 80, 81, 82, 83, 84, 84, 84, 85, + 86, 87, 88, 88, 88, 90, 91, 92, 94, 96, + 97, 98, 100, 102, 103, 104, 105, 106, 107, 107, + 108, 110, 111, 113, 114, 115, 117, 118, 120, 122, + 123, 124, 125, 127, 128, 128, 128, 128, 129, 129 + + } ; + +static yyconst int 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, 2, 5, 6, 1, 7, 1, 1, 1, 1, + 1, 8, 9, 1, 9, 1, 10, 11, 12, 13, + 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, + 1, 1, 1, 1, 14, 14, 14, 14, 14, 14, + 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, + 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, + 16, 1, 17, 1, 15, 1, 18, 19, 20, 21, + + 22, 23, 24, 25, 26, 15, 15, 27, 15, 28, + 29, 15, 15, 30, 31, 32, 33, 15, 15, 34, + 15, 15, 35, 1, 36, 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 int yy_meta[37] = + { 0, + 1, 1, 2, 1, 1, 1, 1, 3, 1, 3, + 4, 4, 4, 5, 6, 1, 1, 5, 5, 5, + 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 1, 1 + } ; + +static yyconst short int yy_base[113] = + { 0, + 0, 0, 29, 30, 198, 199, 39, 42, 166, 190, + 0, 36, 42, 42, 45, 0, 160, 168, 33, 41, + 167, 164, 42, 159, 0, 57, 61, 70, 45, 184, + 199, 0, 66, 199, 0, 69, 0, 0, 153, 156, + 169, 165, 161, 161, 161, 62, 150, 150, 150, 0, + 75, 76, 199, 171, 199, 79, 151, 70, 0, 0, + 79, 0, 141, 159, 144, 143, 151, 0, 0, 145, + 144, 0, 0, 138, 143, 199, 199, 199, 132, 199, + 0, 136, 0, 145, 132, 0, 136, 0, 0, 118, + 95, 76, 0, 90, 93, 60, 45, 199, 199, 99, + + 105, 107, 110, 116, 122, 128, 131, 137, 140, 145, + 151, 157 + } ; + +static yyconst short int yy_def[113] = + { 0, + 99, 1, 100, 100, 99, 99, 99, 99, 99, 101, + 102, 99, 99, 99, 99, 103, 99, 103, 103, 103, + 103, 103, 103, 103, 104, 105, 106, 99, 99, 101, + 99, 107, 99, 99, 108, 99, 109, 103, 110, 103, + 103, 103, 103, 103, 103, 103, 103, 103, 103, 104, + 105, 105, 99, 106, 99, 106, 99, 99, 107, 108, + 99, 109, 110, 111, 103, 103, 103, 103, 103, 103, + 103, 103, 103, 103, 103, 99, 99, 99, 110, 99, + 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, + 103, 103, 103, 103, 99, 112, 112, 99, 0, 99, + + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99 + } ; + +static yyconst short int yy_nxt[236] = + { 0, + 6, 7, 8, 7, 9, 10, 11, 6, 12, 13, + 14, 15, 15, 16, 16, 17, 6, 16, 18, 19, + 20, 16, 21, 16, 16, 22, 23, 16, 16, 16, + 24, 16, 16, 16, 6, 6, 26, 26, 27, 27, + 28, 28, 28, 28, 28, 28, 33, 33, 33, 34, + 98, 35, 33, 33, 33, 33, 33, 33, 43, 41, + 36, 42, 44, 47, 52, 98, 53, 48, 55, 57, + 56, 28, 28, 28, 58, 37, 33, 33, 33, 61, + 61, 71, 99, 52, 99, 53, 99, 77, 56, 61, + 61, 95, 95, 72, 95, 95, 78, 94, 96, 25, + + 25, 25, 25, 25, 25, 30, 30, 30, 30, 30, + 30, 32, 32, 38, 38, 38, 50, 50, 93, 50, + 50, 50, 51, 51, 51, 51, 51, 51, 54, 54, + 54, 54, 54, 54, 59, 59, 59, 60, 92, 60, + 60, 60, 60, 62, 62, 63, 63, 63, 63, 63, + 63, 79, 79, 79, 79, 79, 79, 97, 97, 97, + 97, 97, 97, 91, 90, 89, 88, 64, 87, 86, + 85, 84, 83, 82, 81, 80, 64, 76, 99, 75, + 74, 73, 70, 69, 68, 67, 66, 65, 64, 31, + 49, 46, 45, 40, 39, 31, 29, 99, 5, 99, + + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99 + } ; + +static yyconst short int yy_chk[236] = + { 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, 3, 4, 3, 4, + 7, 7, 7, 8, 8, 8, 12, 12, 12, 13, + 97, 13, 14, 14, 14, 15, 15, 15, 20, 19, + 14, 19, 20, 23, 26, 96, 26, 23, 27, 29, + 27, 28, 28, 28, 29, 14, 33, 33, 33, 36, + 36, 46, 51, 52, 51, 52, 56, 58, 56, 61, + 61, 94, 94, 46, 95, 95, 58, 92, 95, 100, + + 100, 100, 100, 100, 100, 101, 101, 101, 101, 101, + 101, 102, 102, 103, 103, 103, 104, 104, 91, 104, + 104, 104, 105, 105, 105, 105, 105, 105, 106, 106, + 106, 106, 106, 106, 107, 107, 107, 108, 90, 108, + 108, 108, 108, 109, 109, 110, 110, 110, 110, 110, + 110, 111, 111, 111, 111, 111, 111, 112, 112, 112, + 112, 112, 112, 87, 85, 84, 82, 79, 75, 74, + 71, 70, 67, 66, 65, 64, 63, 57, 54, 49, + 48, 47, 45, 44, 43, 42, 41, 40, 39, 30, + 24, 22, 21, 18, 17, 10, 9, 5, 99, 99, + + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, + 99, 99, 99, 99, 99 + } ; + +static yy_state_type yy_state_buf[YY_BUF_SIZE + 2], *yy_state_ptr; +static char *yy_full_match; +static int yy_lp; +#define REJECT \ +{ \ +*yy_cp = yy_hold_char; /* undo effects of setting up yytext */ \ +yy_cp = yy_full_match; /* restore poss. backed-over text */ \ +++yy_lp; \ +goto find_rule; \ +} +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +char *yytext; +#line 1 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +#define INITIAL 0 +/*===-- FileLexer.l - Scanner for TableGen Files ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and is distributed under +// the University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines a simple flex scanner for TableGen files. This is pretty +// straight-forward, except for the magic to handle file inclusion. +// +//===----------------------------------------------------------------------===*/ +#define YY_NEVER_INTERACTIVE 1 +#define comment 1 + +#line 30 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +#include "Record.h" +typedef std::pair<llvm::Record*, std::vector<llvm::Init*>*> SubClassRefTy; +#include "FileParser.h" + +int Fileparse(); + +namespace llvm { + +// Global variable recording the location of the include directory +std::string IncludeDirectory; + +/// ParseInt - This has to handle the special case of binary numbers 0b0101 +/// +static int ParseInt(const char *Str) { + if (Str[0] == '0' && Str[1] == 'b') + return strtol(Str+2, 0, 2); + return strtol(Str, 0, 0); +} + +static int CommentDepth = 0; + +struct IncludeRec { + std::string Filename; + FILE *File; + unsigned LineNo; + YY_BUFFER_STATE Buffer; + + IncludeRec(const std::string &FN, FILE *F) + : Filename(FN), File(F), LineNo(0){ + } +}; + +static std::vector<IncludeRec> IncludeStack; + +std::ostream &err() { + if (IncludeStack.empty()) + return std::cerr << "At end of input: "; + + for (unsigned i = 0, e = IncludeStack.size()-1; i != e; ++i) + std::cerr << "Included from " << IncludeStack[i].Filename << ":" + << IncludeStack[i].LineNo << ":\n"; + return std::cerr << "Parsing " << IncludeStack.back().Filename << ":" + << Filelineno << ": "; +} + +/// ParseFile - this function begins the parsing of the specified tablegen file. +/// +void ParseFile(const std::string &Filename, const std::string & IncludeDir) { + FILE *F = stdin; + if (Filename != "-") { + F = fopen(Filename.c_str(), "r"); + + if (F == 0) { + std::cerr << "Could not open input file '" + Filename + "'!\n"; + exit (1); + } + IncludeStack.push_back(IncludeRec(Filename, F)); + } else { + IncludeStack.push_back(IncludeRec("<stdin>", stdin)); + } + + // Record the location of the include directory so that the lexer can find + // it later. + IncludeDirectory = IncludeDir; + + Filein = F; + Filelineno = 1; + Fileparse(); + Filein = stdin; +} + +/// HandleInclude - This function is called when an include directive is +/// encountered in the input stream... +/// +static void HandleInclude(const char *Buffer) { + unsigned Length = yyleng; + assert(Buffer[Length-1] == '"'); + Buffer += strlen("include "); + Length -= strlen("include "); + while (*Buffer != '"') { + ++Buffer; + --Length; + } + assert(Length >= 2 && "Double quotes not found?"); + std::string Filename(Buffer+1, Buffer+Length-1); + //std::cerr << "Filename = '" << Filename << "'\n"; + + // Save the line number and lex buffer of the includer... + IncludeStack.back().LineNo = Filelineno; + IncludeStack.back().Buffer = YY_CURRENT_BUFFER; + + // Open the new input file... + yyin = fopen(Filename.c_str(), "r"); + if (yyin == 0) { + // If we couldn't find the file in the current directory, look for it in + // the include directories. + // + // NOTE: Right now, there is only one directory. We need to eventually add + // support for more. + std::string NextFilename = IncludeDirectory + "/" + Filename; + yyin = fopen(NextFilename.c_str(), "r"); + if (yyin == 0) { + err() << "Could not find include file '" << Filename << "'!\n"; + exit(1); + } + Filename = NextFilename; + } + + // Add the file to our include stack... + IncludeStack.push_back(IncludeRec(Filename, yyin)); + Filelineno = 1; // Reset line numbering... + //yyrestart(yyin); // Start lexing the new file... + + yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE)); +} + +/// yywrap - This is called when the lexer runs out of input in one of the +/// files. Switch back to an includer if an includee has run out of input. +/// +extern "C" +int yywrap(void) { + if (IncludeStack.back().File != stdin) + fclose(IncludeStack.back().File); + IncludeStack.pop_back(); + if (IncludeStack.empty()) return 1; // Top-level file is done. + + // Otherwise, we need to switch back to a file which included the current one. + Filelineno = IncludeStack.back().LineNo; // Restore current line number + yy_switch_to_buffer(IncludeStack.back().Buffer); + return 0; +} + +} // End llvm namespace + +using namespace llvm; + +#line 648 "Lexer.cpp" + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap YY_PROTO(( void )); +#else +extern int yywrap YY_PROTO(( void )); +#endif +#endif + +#ifndef YY_NO_UNPUT +static inline void yyunput YY_PROTO(( int c, char *buf_ptr )); +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int )); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen YY_PROTO(( yyconst char * )); +#endif + +#ifndef YY_NO_INPUT +#ifdef __cplusplus +static int yyinput YY_PROTO(( void )); +#else +static int input YY_PROTO(( void )); +#endif +#endif + +#if YY_STACK_USED +static int yy_start_stack_ptr = 0; +static int yy_start_stack_depth = 0; +static int *yy_start_stack = 0; +#ifndef YY_NO_PUSH_STATE +static void yy_push_state YY_PROTO(( int new_state )); +#endif +#ifndef YY_NO_POP_STATE +static void yy_pop_state YY_PROTO(( void )); +#endif +#ifndef YY_NO_TOP_STATE +static int yy_top_state YY_PROTO(( void )); +#endif + +#else +#define YY_NO_PUSH_STATE 1 +#define YY_NO_POP_STATE 1 +#define YY_NO_TOP_STATE 1 +#endif + +#ifdef YY_MALLOC_DECL +YY_MALLOC_DECL +#else +#if __STDC__ +#ifndef __cplusplus +#include <stdlib.h> +#endif +#else +/* Just try to get by without declaring the routines. This will fail + * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int) + * or sizeof(void*) != sizeof(int). + */ +#endif +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 8192 +#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 (void) fwrite( yytext, yyleng, 1, yyout ) +#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->yy_is_interactive ) \ + { \ + int c = '*', 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 if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \ + && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); +#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 + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL int yylex YY_PROTO(( void )) +#endif + +/* 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 break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +YY_DECL + { + register yy_state_type yy_current_state; + register char *yy_cp = NULL, *yy_bp = NULL; + register int yy_act; + +#line 176 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" + + +#line 802 "Lexer.cpp" + + if ( yy_init ) + { + yy_init = 0; + +#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 ) + yy_current_buffer = + yy_create_buffer( yyin, YY_BUF_SIZE ); + + yy_load_buffer_state(); + } + + while ( 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_state_ptr = yy_state_buf; + *yy_state_ptr++ = yy_current_state; +yy_match: + do + { + register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*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 >= 100 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + *yy_state_ptr++ = yy_current_state; + ++yy_cp; + } + while ( yy_current_state != 99 ); + +yy_find_action: + yy_current_state = *--yy_state_ptr; + yy_lp = yy_accept[yy_current_state]; +find_rule: /* we branch to this label when backing up */ + for ( ; ; ) /* until we find what rule we matched */ + { + if ( yy_lp && yy_lp < yy_accept[yy_current_state + 1] ) + { + yy_act = yy_acclist[yy_lp]; + { + yy_full_match = yy_cp; + break; + } + } + --yy_cp; + yy_current_state = *--yy_state_ptr; + yy_lp = yy_accept[yy_current_state]; + } + + YY_DO_BEFORE_ACTION; + + if ( yy_act != YY_END_OF_BUFFER ) + { + int yyl; + for ( yyl = 0; yyl < yyleng; ++yyl ) + if ( yytext[yyl] == '\n' ) + ++yylineno; + } + +do_action: /* This label is used only to access EOF actions. */ + + + switch ( yy_act ) + { /* beginning of action switch */ +case 1: +YY_RULE_SETUP +#line 178 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ /* Ignore comments */ } + YY_BREAK +case 2: +YY_RULE_SETUP +#line 180 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ HandleInclude(yytext); } + YY_BREAK +case 3: +YY_RULE_SETUP +#line 181 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ Filelval.StrVal = new std::string(yytext+2, yytext+yyleng-2); + return CODEFRAGMENT; } + YY_BREAK +case 4: +YY_RULE_SETUP +#line 184 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return INT; } + YY_BREAK +case 5: +YY_RULE_SETUP +#line 185 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return BIT; } + YY_BREAK +case 6: +YY_RULE_SETUP +#line 186 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return BITS; } + YY_BREAK +case 7: +YY_RULE_SETUP +#line 187 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return STRING; } + YY_BREAK +case 8: +YY_RULE_SETUP +#line 188 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return LIST; } + YY_BREAK +case 9: +YY_RULE_SETUP +#line 189 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return CODE; } + YY_BREAK +case 10: +YY_RULE_SETUP +#line 190 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return DAG; } + YY_BREAK +case 11: +YY_RULE_SETUP +#line 192 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return CLASS; } + YY_BREAK +case 12: +YY_RULE_SETUP +#line 193 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return DEF; } + YY_BREAK +case 13: +YY_RULE_SETUP +#line 194 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return FIELD; } + YY_BREAK +case 14: +YY_RULE_SETUP +#line 195 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return LET; } + YY_BREAK +case 15: +YY_RULE_SETUP +#line 196 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return IN; } + YY_BREAK +case 16: +YY_RULE_SETUP +#line 198 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return SRATOK; } + YY_BREAK +case 17: +YY_RULE_SETUP +#line 199 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return SRLTOK; } + YY_BREAK +case 18: +YY_RULE_SETUP +#line 200 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return SHLTOK; } + YY_BREAK +case 19: +YY_RULE_SETUP +#line 203 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ Filelval.StrVal = new std::string(yytext, yytext+yyleng); + return ID; } + YY_BREAK +case 20: +YY_RULE_SETUP +#line 205 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ Filelval.StrVal = new std::string(yytext+1, yytext+yyleng); + return VARNAME; } + YY_BREAK +case 21: +YY_RULE_SETUP +#line 208 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ Filelval.StrVal = new std::string(yytext+1, yytext+yyleng-1); + return STRVAL; } + YY_BREAK +case 22: +YY_RULE_SETUP +#line 211 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ Filelval.IntVal = ParseInt(Filetext); return INTVAL; } + YY_BREAK +case 23: +YY_RULE_SETUP +#line 213 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ /* Ignore whitespace */ } + YY_BREAK +case 24: +YY_RULE_SETUP +#line 216 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ BEGIN(comment); CommentDepth++; } + YY_BREAK +case 25: +YY_RULE_SETUP +#line 217 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +/* eat anything that's not a '*' or '/' */ + YY_BREAK +case 26: +YY_RULE_SETUP +#line 218 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +/* eat up '*'s not followed by '/'s */ + YY_BREAK +case 27: +YY_RULE_SETUP +#line 219 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ ++CommentDepth; } + YY_BREAK +case 28: +YY_RULE_SETUP +#line 220 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +/* eat up /'s not followed by *'s */ + YY_BREAK +case 29: +YY_RULE_SETUP +#line 221 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ if (!--CommentDepth) { BEGIN(INITIAL); } } + YY_BREAK +case YY_STATE_EOF(comment): +#line 222 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ err() << "Unterminated comment!\n"; exit(1); } + YY_BREAK +case 30: +YY_RULE_SETUP +#line 224 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +{ return Filetext[0]; } + YY_BREAK +case 31: +YY_RULE_SETUP +#line 226 "/proj/llvm/build/../llvm/utils/TableGen/FileLexer.l" +YY_FATAL_ERROR( "flex scanner jammed" ); + YY_BREAK +#line 1056 "Lexer.cpp" + case YY_STATE_EOF(INITIAL): + 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->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->yy_n_chars; + yy_current_buffer->yy_input_file = yyin; + yy_current_buffer->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 |