[Bug other/80050] gcc/genmatch.c: PVS-Studio: V590

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80050

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |msebor at gcc dot gnu.org

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
I thought the same thing.  It looks like a deficiency in the implementation. 
The following is a simple test case for the missing warning.  I'm undecided
whether to open a separate bug for it or if this bug should track it.

$ cat u.c && gcc -S -Wall -Wextra -Wpedantic -Wlogical-op u.c
int f (int i)
{
  if (i == 123 && i != 456)
    return 1;

  return 2;
}