Missing "-Wuninitialized" warning after adding a no-op `(void)` cast


Bugzilla Link	PR32768
Status	NEW
Importance	P normal
Reported by	Vittorio Romeo (vittorio.romeo@outlook.com)
Reported on	2017-04-24 07:13:24 -0700
Last modified on	2017-04-24 07:13:50 -0700
Version	trunk
Hardware	PC Windows NT
CC	dgregor@apple.com, llvm-bugs@lists.llvm.org
Fixed by commit(s)
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The following code won't produce a -Wuninitialized for a:

int main()
{
    int *a;
    (void) &a;

    *a = 4;
    return 0;
}

The following code will produce a -Wuninitialized for a:

int main()
{
    int *a;
    // (void) &a;

    *a = 4;
    return 0;
}

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