gas/config/loongarch-lex.l

   1 %option noyywrap
   2 /*
   3    Copyright (C) 2021-2022 Free Software Foundation, Inc.
   4
   5    This file is part of GAS, the GNU Assembler.
   6
   7    GAS is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    GAS is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; see the file COPYING3.  If not,
  19    see <http://www.gnu.org/licenses/>.  */
  20 %{
  21 #include "as.h"
  22 #include "loongarch-parse.h"
  23
  24 /* Flex generates static functions "input" & "unput" which are not used.  */
  25 #define YY_NO_INPUT
  26 #define YY_NO_UNPUT
  27 %}
  28
  29 D       [0-9]
  30 /* We consider anything greater than \x7f to be a "letter" for UTF-8
  31    support.  See the lex_type array in ../read.c.  */
  32 L       [a-zA-Z_\.\$\x80-\xff]
  33 H       [0-9A-Fa-f]
  34
  35 hex     0[xX]{H}+
  36 oct     0[0-7]+
  37 bin     0[bB][01]+
  38 dec     ([1-9]{D}*)|0
  39 id      ({D}+[fb])|({L}({D}|{L})*)|(:{dec}[bf])
  40 ws      [ \t\v\f]+
  41
  42 %%
  43
  44 {dec}   { yylval.imm = strtoull (yytext, 0, 0); return INTEGER; }
  45 {hex}   { yylval.imm = strtoull (yytext + 2, 0, 16); return INTEGER; }
  46 {bin}   { yylval.imm = strtoull (yytext + 2, 0, 2); return INTEGER; }
  47 {oct}   { yylval.imm = strtoull (yytext + 1, 0, 8); return INTEGER; }
  48 {id}    { yylval.c_str = strdup (yytext);return IDENTIFIER; }
  49 {ws}    { }
  50
  51 ">>"    { return RIGHT_OP; }
  52 "<<"    { return LEFT_OP; }
  53 "&&"    { return AND_OP; }
  54 "||"    { return OR_OP; }
  55 "<="    { return LE_OP; }
  56 ">="    { return GE_OP; }
  57 "=="    { return EQ_OP; }
  58 "!="    { return NE_OP; }
  59 .       { return yytext[0];}
  60
  61 %%