[Bug debug/43222] two DEBUG i => 0 generated after loop copy header

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2010-03-01 23:14 -------
Here is a simplier testcase which shows the problem is even worse:
int gif_read_lzw(int input_code_size)
{
  int i;
  short code_size = 0;
  for (i = 0; i < input_code_size; i ++)
    code_size ++;

  return code_size;
}

--- CUT ---
We have now 8 debug statements after loop copy header when we really only need
4 (2 before the loop and 2 inside the loop).  Why are we duplicating already
emitted debug statements?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43222