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Auto merge of #5508 - lzutao:rustup-71044, r=phansch

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Rustup "Remove `BodyAndCache`"

cc https://github.com/rust-lang/rust/pull/71044
changelog: none
This commit is contained in:
bors 2020-04-23 05:08:29 +00:00
commit d01a49810b
1 changed files with 3 additions and 4 deletions
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7
clippy_lints/src/redundant_clone.rs
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@ -85,7 +85,6 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for RedundantClone {
}
let mir = cx.tcx.optimized_mir(def_id.to_def_id());
let mir_read_only = mir.unwrap_read_only();
let maybe_storage_live_result = MaybeStorageLive
.into_engine(cx.tcx, mir, def_id.to_def_id())
@ -93,7 +92,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for RedundantClone {
.into_results_cursor(mir);
let mut possible_borrower = {
let mut vis = PossibleBorrowerVisitor::new(cx, mir);
vis.visit_body(&mir_read_only);
vis.visit_body(&mir);
vis.into_map(cx, maybe_storage_live_result)
};
@ -146,7 +145,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for RedundantClone {
// `arg` is a reference as it is `.deref()`ed in the previous block.
// Look into the predecessor block and find out the source of deref.
let ps = mir_read_only.predecessors_for(bb);
let ps = &mir.predecessors()[bb];
if ps.len() != 1 {
continue;
}
@ -191,7 +190,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for RedundantClone {
(local, deref_clone_ret)
};
let is_temp = mir_read_only.local_kind(ret_local) == mir::LocalKind::Temp;
let is_temp = mir.local_kind(ret_local) == mir::LocalKind::Temp;
// 1. `local` can be moved out if it is not used later.
// 2. If `ret_local` is a temporary and is neither consumed nor mutated, we can remove this `clone`