Patrick Walton wrote:
This is already done. The Rust ABI specifies that when large
structures are passed by move, a pointer is implicitly passed instead.
As an aside, I've been thinking that we can optimize the trans code
further for non-drop types that are located in immutable variables which
are not moved. In that case, we currently make a second copy, but there
is no reason to do so.
Niko
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