[Bug 1874073] Re: openrisc_sim.c:87:42: error: 'cpu_irqs[0]' may be used uninitialized in this function [-Werror=maybe-uninitialized]

[Martin Liska]

Note that our -Wmaybe-uninitialized warnings tends to report false positives. 
We have a rich meta bug for it:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24639

That's why it can't prove the variable is initialized in all possible
execution paths.

** Bug watch added: GCC Bugzilla #24639
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24639

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https://bugs.launchpad.net/bugs/1874073

Title:
  openrisc_sim.c:87:42: error: 'cpu_irqs[0]' may be used uninitialized
  in this function [-Werror=maybe-uninitialized]

Status in QEMU:
  New

Bug description:
  I see the warning since gcc10:

  static void openrisc_sim_init(MachineState *machine):
  ...
      qemu_irq *cpu_irqs[2];
  ...

  
      serial_mm_init(get_system_memory(), 0x90000000, 0, serial_irq,
                     115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);

  I would initialize cpu_irqs[2] with {}.

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