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| author | Simon Vandel Sillesen <simon.vandel@gmail.com> | 2020-09-19 14:25:53 +0200 |
|---|---|---|
| committer | Simon Vandel Sillesen <simon.vandel@gmail.com> | 2020-09-22 23:09:07 +0200 |
| commit | f472303a93699f4d6465ada0ab7e9a999c34b0ec (patch) | |
| tree | 20a0a9cb8acf3cf41e4ffbc51848bd677d7c6703 | |
| parent | d3338dcf4de915fedc39ca46cb9944250bcb1a9e (diff) | |
| download | rust-f472303a93699f4d6465ada0ab7e9a999c34b0ec.tar.gz rust-f472303a93699f4d6465ada0ab7e9a999c34b0ec.zip | |
The optimization should also apply for DropAndReplace
| -rw-r--r-- | compiler/rustc_mir/src/transform/remove_unneeded_drops.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_mir/src/transform/remove_unneeded_drops.rs b/compiler/rustc_mir/src/transform/remove_unneeded_drops.rs index 505133219b8..b8ad816f758 100644 --- a/compiler/rustc_mir/src/transform/remove_unneeded_drops.rs +++ b/compiler/rustc_mir/src/transform/remove_unneeded_drops.rs @@ -29,7 +29,8 @@ impl<'tcx> MirPass<'tcx> for RemoveUnneededDrops { impl<'a, 'tcx> Visitor<'tcx> for RemoveUnneededDropsOptimizationFinder<'a, 'tcx> { fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) { match terminator.kind { - TerminatorKind::Drop { place, target, .. } => { + TerminatorKind::Drop { place, target, .. } + | TerminatorKind::DropAndReplace { place, target, .. } => { let ty = place.ty(self.body, self.tcx); let needs_drop = ty.ty.needs_drop(self.tcx, self.tcx.param_env(self.def_id)); if !needs_drop { |