https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87038

Harald van Dijk <harald at gigawatt dot nl> changed:

           What    |Removed                     |Added
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                 CC|                            |harald at gigawatt dot nl

--- Comment #9 from Harald van Dijk <harald at gigawatt dot nl> ---
(In reply to Segher Boessenkool from comment #8)
> -Wall please, unless there are frequent false positives.

-Wjump-misses-init warns for harmless code such as

  int f1();
  int f2();
  void f3(int);
  void f4(int a) {
    switch (a) { 
    case 0:;
      int i = f1();
      f3(i);
      break;
    case 1:
      i = f2();
      f3(i);
      break;
    }
  }

Here, yes, the initialisation is jumped over, but the variable is never used
uninitialised. clang manages to avoid warning for this.

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