mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-26 13:10:34 +00:00
Adjust to new form of handling lexer dependencies, this way shouldn't have
the problems the old way did. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26161 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
342567c987
commit
e8242b168c
@ -29,7 +29,6 @@
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#define YY_FLEX_MINOR_VERSION 5
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#include <stdio.h>
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#include <unistd.h>
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/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
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@ -43,6 +42,7 @@
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#ifdef __cplusplus
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#include <stdlib.h>
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#include <unistd.h>
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/* Use prototypes in function declarations. */
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#define YY_USE_PROTOS
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@ -489,7 +489,7 @@ goto find_rule; \
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#define YY_MORE_ADJ 0
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#define YY_RESTORE_YY_MORE_OFFSET
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char *yytext;
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#line 1 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 1 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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#define INITIAL 0
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/*===-- FileLexer.l - Scanner for TableGen Files ----------------*- C++ -*-===//
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//
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@ -507,7 +507,7 @@ char *yytext;
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#define YY_NEVER_INTERACTIVE 1
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#define comment 1
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#line 30 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 30 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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#include "Record.h"
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typedef std::pair<llvm::Record*, std::vector<llvm::Init*>*> SubClassRefTy;
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#include "FileParser.h"
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@ -792,10 +792,10 @@ YY_MALLOC_DECL
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YY_DECL
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{
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register yy_state_type yy_current_state;
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register char *yy_cp = NULL, *yy_bp = NULL;
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register char *yy_cp, *yy_bp;
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register int yy_act;
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#line 176 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 176 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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#line 802 "Lexer.cpp"
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@ -891,165 +891,165 @@ do_action: /* This label is used only to access EOF actions. */
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{ /* beginning of action switch */
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case 1:
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YY_RULE_SETUP
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#line 178 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 178 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ /* Ignore comments */ }
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YY_BREAK
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case 2:
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YY_RULE_SETUP
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#line 180 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 180 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ HandleInclude(yytext); }
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YY_BREAK
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case 3:
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YY_RULE_SETUP
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#line 181 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 181 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ Filelval.StrVal = new std::string(yytext+2, yytext+yyleng-2);
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return CODEFRAGMENT; }
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YY_BREAK
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case 4:
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YY_RULE_SETUP
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#line 184 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 184 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return INT; }
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YY_BREAK
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case 5:
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YY_RULE_SETUP
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#line 185 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 185 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return BIT; }
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YY_BREAK
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case 6:
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YY_RULE_SETUP
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#line 186 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 186 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return BITS; }
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YY_BREAK
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case 7:
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YY_RULE_SETUP
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#line 187 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 187 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return STRING; }
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YY_BREAK
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case 8:
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YY_RULE_SETUP
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#line 188 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 188 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return LIST; }
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YY_BREAK
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case 9:
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YY_RULE_SETUP
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#line 189 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 189 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return CODE; }
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YY_BREAK
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case 10:
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YY_RULE_SETUP
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#line 190 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 190 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return DAG; }
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YY_BREAK
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case 11:
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YY_RULE_SETUP
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#line 192 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 192 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return CLASS; }
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YY_BREAK
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case 12:
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YY_RULE_SETUP
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#line 193 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 193 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return DEF; }
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YY_BREAK
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case 13:
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YY_RULE_SETUP
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#line 194 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 194 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return FIELD; }
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YY_BREAK
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case 14:
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YY_RULE_SETUP
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#line 195 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 195 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return LET; }
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YY_BREAK
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case 15:
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YY_RULE_SETUP
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#line 196 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 196 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return IN; }
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YY_BREAK
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case 16:
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YY_RULE_SETUP
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#line 198 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 198 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return SRATOK; }
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YY_BREAK
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case 17:
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YY_RULE_SETUP
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#line 199 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 199 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return SRLTOK; }
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YY_BREAK
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case 18:
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YY_RULE_SETUP
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#line 200 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 200 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return SHLTOK; }
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YY_BREAK
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case 19:
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YY_RULE_SETUP
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#line 203 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 203 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ Filelval.StrVal = new std::string(yytext, yytext+yyleng);
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return ID; }
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YY_BREAK
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case 20:
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YY_RULE_SETUP
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#line 205 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 205 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ Filelval.StrVal = new std::string(yytext+1, yytext+yyleng);
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return VARNAME; }
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YY_BREAK
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case 21:
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YY_RULE_SETUP
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#line 208 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 208 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ Filelval.StrVal = new std::string(yytext+1, yytext+yyleng-1);
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return STRVAL; }
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YY_BREAK
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case 22:
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YY_RULE_SETUP
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#line 211 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 211 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ Filelval.IntVal = ParseInt(Filetext); return INTVAL; }
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YY_BREAK
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case 23:
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YY_RULE_SETUP
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#line 213 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 213 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ /* Ignore whitespace */ }
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YY_BREAK
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case 24:
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YY_RULE_SETUP
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#line 216 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 216 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ BEGIN(comment); CommentDepth++; }
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YY_BREAK
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case 25:
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YY_RULE_SETUP
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#line 217 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 217 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{} /* eat anything that's not a '*' or '/' */
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YY_BREAK
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case 26:
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YY_RULE_SETUP
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#line 218 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 218 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{} /* eat up '*'s not followed by '/'s */
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YY_BREAK
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case 27:
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YY_RULE_SETUP
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#line 219 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 219 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ ++CommentDepth; }
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YY_BREAK
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case 28:
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YY_RULE_SETUP
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#line 220 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 220 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{} /* eat up /'s not followed by *'s */
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YY_BREAK
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case 29:
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YY_RULE_SETUP
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#line 221 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 221 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ if (!--CommentDepth) { BEGIN(INITIAL); } }
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YY_BREAK
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case YY_STATE_EOF(comment):
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#line 222 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 222 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ err() << "Unterminated comment!\n"; exit(1); }
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YY_BREAK
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case 30:
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YY_RULE_SETUP
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#line 224 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 224 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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{ return Filetext[0]; }
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YY_BREAK
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case 31:
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YY_RULE_SETUP
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#line 226 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 226 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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YY_FATAL_ERROR( "flex scanner jammed" );
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YY_BREAK
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#line 1056 "Lexer.cpp"
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@ -1430,7 +1430,6 @@ register char *yy_bp;
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#endif /* ifndef YY_NO_UNPUT */
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#ifndef YY_NO_INPUT
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#ifdef __cplusplus
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static int yyinput()
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#else
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@ -1504,7 +1503,7 @@ static int input()
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return c;
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}
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#endif /* YY_NO_INPUT */
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#ifdef YY_USE_PROTOS
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void yyrestart( FILE *input_file )
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@ -1615,6 +1614,11 @@ YY_BUFFER_STATE b;
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}
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#ifndef YY_ALWAYS_INTERACTIVE
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#ifndef YY_NEVER_INTERACTIVE
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extern int isatty YY_PROTO(( int ));
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#endif
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#endif
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#ifdef YY_USE_PROTOS
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void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
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@ -1932,5 +1936,6 @@ int main()
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return 0;
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}
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#endif
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#line 226 "/home/vadve/criswell/llvm/utils/TableGen/FileLexer.l"
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#line 226 "/Users/sabre/cvs/llvm/utils/TableGen/FileLexer.l"
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@ -224,3 +224,4 @@ ${Identifier} { Filelval.StrVal = new std::string(yytext+1, yytext+yyleng);
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. { return Filetext[0]; }
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%%
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227
utils/TableGen/FileLexer.l.cvs
Normal file
227
utils/TableGen/FileLexer.l.cvs
Normal file
@ -0,0 +1,227 @@
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/*===-- FileLexer.l - Scanner for TableGen Files ----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a simple flex scanner for TableGen files. This is pretty
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// straight-forward, except for the magic to handle file inclusion.
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//
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//===----------------------------------------------------------------------===*/
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%option prefix="File"
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%option yylineno
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%option nostdinit
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%option never-interactive
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%option batch
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%option nodefault
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%option 8bit
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%option outfile="Lexer.cpp"
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%option ecs
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%option noreject
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%option noyymore
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%x comment
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%{
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#include "Record.h"
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typedef std::pair<llvm::Record*, std::vector<llvm::Init*>*> SubClassRefTy;
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#include "FileParser.h"
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int Fileparse();
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|
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namespace llvm {
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// Global variable recording the location of the include directory
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std::string IncludeDirectory;
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/// ParseInt - This has to handle the special case of binary numbers 0b0101
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///
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static int ParseInt(const char *Str) {
|
||||
if (Str[0] == '0' && Str[1] == 'b')
|
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return strtol(Str+2, 0, 2);
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return strtol(Str, 0, 0);
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}
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|
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static int CommentDepth = 0;
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|
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struct IncludeRec {
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std::string Filename;
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FILE *File;
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unsigned LineNo;
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YY_BUFFER_STATE Buffer;
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|
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IncludeRec(const std::string &FN, FILE *F)
|
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: Filename(FN), File(F), LineNo(0){
|
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}
|
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};
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|
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static std::vector<IncludeRec> IncludeStack;
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|
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std::ostream &err() {
|
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if (IncludeStack.empty())
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return std::cerr << "At end of input: ";
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||||
for (unsigned i = 0, e = IncludeStack.size()-1; i != e; ++i)
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std::cerr << "Included from " << IncludeStack[i].Filename << ":"
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<< IncludeStack[i].LineNo << ":\n";
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return std::cerr << "Parsing " << IncludeStack.back().Filename << ":"
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<< Filelineno << ": ";
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}
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/// ParseFile - this function begins the parsing of the specified tablegen file.
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||||
///
|
||||
void ParseFile(const std::string &Filename, const std::string & IncludeDir) {
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||||
FILE *F = stdin;
|
||||
if (Filename != "-") {
|
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F = fopen(Filename.c_str(), "r");
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||||
|
||||
if (F == 0) {
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||||
std::cerr << "Could not open input file '" + Filename + "'!\n";
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exit (1);
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||||
}
|
||||
IncludeStack.push_back(IncludeRec(Filename, F));
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||||
} else {
|
||||
IncludeStack.push_back(IncludeRec("<stdin>", stdin));
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||||
}
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||||
|
||||
// Record the location of the include directory so that the lexer can find
|
||||
// it later.
|
||||
IncludeDirectory = IncludeDir;
|
||||
|
||||
Filein = F;
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||||
Filelineno = 1;
|
||||
Fileparse();
|
||||
Filein = stdin;
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||||
}
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||||
|
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/// HandleInclude - This function is called when an include directive is
|
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/// encountered in the input stream...
|
||||
///
|
||||
static void HandleInclude(const char *Buffer) {
|
||||
unsigned Length = yyleng;
|
||||
assert(Buffer[Length-1] == '"');
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||||
Buffer += strlen("include ");
|
||||
Length -= strlen("include ");
|
||||
while (*Buffer != '"') {
|
||||
++Buffer;
|
||||
--Length;
|
||||
}
|
||||
assert(Length >= 2 && "Double quotes not found?");
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||||
std::string Filename(Buffer+1, Buffer+Length-1);
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||||
//std::cerr << "Filename = '" << Filename << "'\n";
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||||
// Save the line number and lex buffer of the includer...
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IncludeStack.back().LineNo = Filelineno;
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||||
IncludeStack.back().Buffer = YY_CURRENT_BUFFER;
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||||
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// Open the new input file...
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yyin = fopen(Filename.c_str(), "r");
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if (yyin == 0) {
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// If we couldn't find the file in the current directory, look for it in
|
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// the include directories.
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//
|
||||
// NOTE: Right now, there is only one directory. We need to eventually add
|
||||
// support for more.
|
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std::string NextFilename = IncludeDirectory + "/" + Filename;
|
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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;
|
||||
|
||||
%}
|
||||
|
||||
Comment \/\/.*
|
||||
|
||||
Identifier [a-zA-Z_][0-9a-zA-Z_]*
|
||||
Integer [-+]?[0-9]+|0x[0-9a-fA-F]+|0b[01]+
|
||||
CodeFragment \[\{([^}]+|\}[^\]])*\}\]
|
||||
StringVal \"[^"]*\"
|
||||
IncludeStr include[ \t\n]+\"[^"]*\"
|
||||
|
||||
%%
|
||||
|
||||
{Comment} { /* Ignore comments */ }
|
||||
|
||||
{IncludeStr} { HandleInclude(yytext); }
|
||||
{CodeFragment} { Filelval.StrVal = new std::string(yytext+2, yytext+yyleng-2);
|
||||
return CODEFRAGMENT; }
|
||||
|
||||
int { return INT; }
|
||||
bit { return BIT; }
|
||||
bits { return BITS; }
|
||||
string { return STRING; }
|
||||
list { return LIST; }
|
||||
code { return CODE; }
|
||||
dag { return DAG; }
|
||||
|
||||
class { return CLASS; }
|
||||
def { return DEF; }
|
||||
field { return FIELD; }
|
||||
let { return LET; }
|
||||
in { return IN; }
|
||||
|
||||
!sra { return SRATOK; }
|
||||
!srl { return SRLTOK; }
|
||||
!shl { return SHLTOK; }
|
||||
|
||||
|
||||
{Identifier} { Filelval.StrVal = new std::string(yytext, yytext+yyleng);
|
||||
return ID; }
|
||||
${Identifier} { Filelval.StrVal = new std::string(yytext+1, yytext+yyleng);
|
||||
return VARNAME; }
|
||||
|
||||
{StringVal} { Filelval.StrVal = new std::string(yytext+1, yytext+yyleng-1);
|
||||
return STRVAL; }
|
||||
|
||||
{Integer} { Filelval.IntVal = ParseInt(Filetext); return INTVAL; }
|
||||
|
||||
[ \t\n\r]+ { /* Ignore whitespace */ }
|
||||
|
||||
|
||||
"/*" { BEGIN(comment); CommentDepth++; }
|
||||
<comment>[^*/]* {} /* eat anything that's not a '*' or '/' */
|
||||
<comment>"*"+[^*/]* {} /* eat up '*'s not followed by '/'s */
|
||||
<comment>"/*" { ++CommentDepth; }
|
||||
<comment>"/"+[^*/]* {} /* eat up /'s not followed by *'s */
|
||||
<comment>"*"+"/" { if (!--CommentDepth) { BEGIN(INITIAL); } }
|
||||
<comment><<EOF>> { err() << "Unterminated comment!\n"; exit(1); }
|
||||
|
||||
. { return Filetext[0]; }
|
||||
|
||||
%%
|
||||
|
||||
Loading…
Reference in New Issue
Block a user