[llvm-bugs] [Bug 42609] New: Uninitialized warning missing for use inside GNU C statement expression

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=42609

            Bug ID: 42609
           Summary: Uninitialized warning missing for use inside GNU C
                    statement expression
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: nhuck15 at gmail.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

Consider the following example:

void init(int*);

void foo(void) {
    int i = ({
        int z = i; //Probably should be a warning here
        init(&i);
        i;
    });
}

Setting a variable to i within i's own initializer should generate a warning.

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