[Bug gcov-profile/90438] [GCOV] switch statement is not instrumented when "case" body is empty and only "default" body with statements

[yangyibiao at nju dot edu.cn]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90438

--- Comment #2 from Yibiao Yang  ---
(In reply to Martin Liška from comment #1)
> It's again the same story. As I've already explained you multiple times,
> compiler optimizes a dead code even without any optimization level. Thus we
> 
> Please do not create such bugs.

Very sorry for the same bug report. Will avoid in the future. 

Thank you very much for the detailed explaination.

[Bug gcov-profile/90438] [GCOV] switch statement is not instrumented when "case" body is empty and only "default" body with statements

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90438

Martin Liška  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |INVALID

--- Comment #1 from Martin Liška  ---
It's again the same story. As I've already explained you multiple times,
compiler optimizes a dead code even without any optimization level. Thus we end
up with:

f (int i)
{
  int res;
  int D.1916;
  int _3;

   :
  res_2 = i_1(D) * 2;

   :
  _3 = res_2;

   :
:
  return _3;

}

Please do not create such bugs.