[llvm-bugs] [Bug 51678] New: (Accepts invalid?) No warning "not lvalue expression nor array section in 'depend' clause"

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51678

            Bug ID: 51678
           Summary: (Accepts invalid?) No warning "not lvalue expression
                    nor array section in 'depend' clause"
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: OpenMP
          Assignee: unassignedclangbugs at nondot.org
          Reporter: lebedev.ri at gmail.com
                CC: llvm-bugs at lists.llvm.org

struct Inner {
    int a, b;
};

struct Outer {
    int c, d;
    Inner k;

    void bad();
    void maybegood();
};

void callee(Inner &);

void Outer::bad() {
#pragma omp task depend(in : k)
    callee(k);
}


void Outer::maybegood() {
#pragma omp task depend(in : this->k)
    callee(k);
}


Gcc says:

<source>: In member function 'void Outer::bad()':
<source>:16:30: error: 'Outer::k' is not lvalue expression nor array section in
'depend' clause
   16 | #pragma omp task depend(in : k)
      |                              ^
Compiler returned: 1

(and does not complain on `maybegood()`).
Clang doesn't say anything.
Is this a clang bug or gcc one?

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