gcc/testsuite/gcc.dg/tree-ssa/reassoc-43.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-reassoc -w" } */
   3
   4 typedef union tree_node *tree;
   5 enum cpp_ttype { CPP_COLON, CPP_SEMICOLON, CPP_CLOSE_BRACE, CPP_COMMA };
   6 enum rid { RID_STATIC = 0, RID_ATTRIBUTE, };
   7 typedef struct c_token
   8 {
   9   enum cpp_ttype type:8;
  10 }
  11 c_token;
  12 typedef struct c_parser
  13 {
  14   c_token tokens[2];
  15   short tokens_avail;
  16 }
  17 c_parser;
  18 int c_parser_next_token_is_keyword (c_parser *, enum rid);
  19 tree chainon (int, tree);
  20 int c_parser_attributes (c_parser *);
  21 __inline__ c_token *
  22 c_parser_peek_token (c_parser * parser)
  23 {
  24   if (parser->tokens_avail == 0)
  25     {
  26       parser->tokens_avail = 1;
  27     }
  28   return &parser->tokens[0];
  29 }
  30
  31 __inline__ unsigned char
  32 c_parser_next_token_is (c_parser * parser, enum cpp_ttype type)
  33 {
  34   return c_parser_peek_token (parser)->type == type;
  35 }
  36
  37 void
  38 c_parser_translation_unit (c_parser * parser)
  39 {
  40   tree prefix_attrs;
  41   tree all_prefix_attrs;
  42   while (1)
  43     {
  44       if (c_parser_next_token_is (parser, CPP_COLON)
  45           || c_parser_next_token_is (parser, CPP_COMMA)
  46           || c_parser_next_token_is (parser, CPP_SEMICOLON)
  47           || c_parser_next_token_is (parser, CPP_CLOSE_BRACE)
  48           || c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE))
  49         {
  50           if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE))
  51             all_prefix_attrs =
  52               chainon (c_parser_attributes (parser), prefix_attrs);
  53         }
  54     }
  55 }
  56 /* { dg-final { scan-tree-dump-not "\[ (\]0 != 0" "reassoc2"} } */