1  /* { dg-do compile { target aarch64*-*-* i?86-*-* x86_64-*-* } } */
       2  /* { dg-options "-fdump-rtl-ce1 -O2 -w --param max-rtl-if-conversion-unpredictable-cost=100" } */
       3  /* { dg-additional-options "-march=i686" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
       4  
       5  typedef struct cpp_reader cpp_reader;
       6  enum cpp_ttype
       7  {
       8    CPP_EQ =
       9      0, CPP_NOT, CPP_GREATER, CPP_LESS, CPP_PLUS, CPP_MINUS, CPP_MULT, CPP_DIV,
      10    CPP_MOD, CPP_AND, CPP_OR, CPP_XOR, CPP_RSHIFT, CPP_LSHIFT, CPP_MIN,
      11    CPP_MAX, CPP_COMPL, CPP_AND_AND, CPP_OR_OR, CPP_QUERY, CPP_COLON,
      12    CPP_COMMA, CPP_OPEN_PAREN, CPP_CLOSE_PAREN, CPP_EQ_EQ, CPP_NOT_EQ,
      13    CPP_GREATER_EQ, CPP_LESS_EQ, CPP_PLUS_EQ, CPP_MINUS_EQ, CPP_MULT_EQ,
      14    CPP_DIV_EQ, CPP_MOD_EQ, CPP_AND_EQ, CPP_OR_EQ, CPP_XOR_EQ, CPP_RSHIFT_EQ,
      15    CPP_LSHIFT_EQ, CPP_MIN_EQ, CPP_MAX_EQ, CPP_HASH, CPP_PASTE,
      16    CPP_OPEN_SQUARE, CPP_CLOSE_SQUARE, CPP_OPEN_BRACE, CPP_CLOSE_BRACE,
      17    CPP_SEMICOLON, CPP_ELLIPSIS, CPP_PLUS_PLUS, CPP_MINUS_MINUS, CPP_DEREF,
      18    CPP_DOT, CPP_SCOPE, CPP_DEREF_STAR, CPP_DOT_STAR, CPP_ATSIGN, CPP_NAME,
      19    CPP_NUMBER, CPP_CHAR, CPP_WCHAR, CPP_OTHER, CPP_STRING, CPP_WSTRING,
      20    CPP_HEADER_NAME, CPP_COMMENT, CPP_MACRO_ARG, CPP_PADDING, CPP_EOF,
      21  };
      22  
      23  static struct op lex (cpp_reader *, int);
      24  
      25  struct op
      26  {
      27    enum cpp_ttype op;
      28    long value;
      29  };
      30  
      31  int
      32  _cpp_parse_expr (pfile)
      33  {
      34    struct op init_stack[20];
      35    struct op *stack = init_stack;
      36    struct op *top = stack + 1;
      37    int skip_evaluation = 0;
      38    for (;;)
      39      {
      40        struct op op;
      41        op = lex (pfile, skip_evaluation);
      42        switch (op.op)
      43  	{
      44  	case CPP_OR_OR:
      45  	  if (top->value)
      46  	    skip_evaluation++;
      47  	  else
      48  	    skip_evaluation--;
      49  	}
      50      }
      51  }
      52  
      53  /* { dg-final { scan-rtl-dump "2 true changes made" "ce1" } } */