http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57485
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |mpolacek at gcc dot gnu.org
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I think this is return slot optimization. We can perform it in the first case,
because struct S s = f(); is an initializer, but not in the second case,
because we have a MODIFY_EXPR and the LHS is already addressable and in that
case the RSO is forbidden (?).
