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 __inline__ c_token *
  19 c_parser_peek_token (c_parser * parser)
  20 {
  21   if (parser->tokens_avail == 0)
  22     {
  23       parser->tokens_avail = 1;
  24     }
  25   return &parser->tokens[0];
  26 }
  27
  28 __inline__ unsigned char
  29 c_parser_next_token_is (c_parser * parser, enum cpp_ttype type)
  30 {
  31   return c_parser_peek_token (parser)->type == type;
  32 }
  33
  34 void
  35 c_parser_translation_unit (c_parser * parser)
  36 {
  37   tree prefix_attrs;
  38   tree all_prefix_attrs;
  39   while (1)
  40     {
  41       if (c_parser_next_token_is (parser, CPP_COLON)
  42           || c_parser_next_token_is (parser, CPP_COMMA)
  43           || c_parser_next_token_is (parser, CPP_SEMICOLON)
  44           || c_parser_next_token_is (parser, CPP_CLOSE_BRACE)
  45           || c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE))
  46         {
  47           if (c_parser_next_token_is_keyword (parser, RID_ATTRIBUTE))
  48             all_prefix_attrs =
  49               chainon (c_parser_attributes (parser), prefix_attrs);
  50         }
  51     }
  52 }
  53 /* { dg-final { scan-tree-dump-not "0 != 0" "reassoc2"} } */