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Currently, the determination of a __builtin_offsetof() expressions'
constness flags is done in two steps:
- Several flags are speculatively set at expression parsing time
- and possibly cleared again at evaluation if the member expression
includes a non-const array index like in
__builtin_offsetof(struct A, a.b[non_const_foo])
For consistency with other expression types' evaluation, defer the
determination of a __builtin_offsetof() expression's constness to
evaluation time, too.
Furthermore, carry an array index expression's constness flags
through the implicit cast to size_t type.
Signed-off-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
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