[Bug gas/13036] cross compiling gas for arm fails using gcc-4.5.2 where 4.5.1 worked

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13036

--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> 2012-05-18 10:30:08 
UTC ---
The code in question is:

---
  int base_reg = -1; 
  int reg_incr = -1; 
...
  struct neon_typed_alias firsttype;

  if (skip_past_char (&ptr, '{') == SUCCESS)
    leading_brace = 1;

  do
    {
      struct neon_typed_alias atype;
      int getreg = parse_typed_reg_or_scalar (&ptr, rtype, &rtype, &atype);

      if (getreg == FAIL)
        {
          first_error (_(reg_expected_msgs[rtype]));
          return FAIL;
        }

      if (base_reg == -1)
        {
          base_reg = getreg;
          if (rtype == REG_TYPE_NQ)
            {
              reg_incr = 1;
            }
          firsttype = atype;
        }
      else if (reg_incr == -1)
        {
          reg_incr = getreg - base_reg;
          if (reg_incr < 1 || reg_incr > 2)
            {
              first_error (_(incr_error));
              return FAIL;
            }
        }
      else if (getreg != base_reg + reg_incr * count)
        {
          first_error (_(incr_error));
          return FAIL;
        }

      if (! neon_alias_types_same (&atype, &firsttype))
----

Since base_reg == -1 the first time, firsttype is initialized
to atype.  This is a compiler bug and you should report it to
Ubuntu.

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