Tomasz Miąsko
6bd1a031ab
Previously copy propagation presumed that there is further unspecified distinction between move operands and copy operands in assignments and propagated moves from assignments into terminators. This is inconsistent with current operational semantics. Turn moves into copies after copy propagation to preserve existing behavior. Fixes https://github.com/rust-lang/rust/issues/137936. Fixes https://github.com/rust-lang/rust/issues/146423.
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