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Reimplement NormalizeArrayLen.

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This commit is contained in:
Camille GILLOT 2023-01-21 20:51:21 +00:00
parent c7bf469fec
commit a9aed861ac
17 changed files with 192 additions and 436 deletions
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2
compiler/rustc_mir_transform/src/lib.rs
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@ -549,13 +549,13 @@ fn run_optimization_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
&[
&reveal_all::RevealAll, // has to be done before inlining, since inlined code is in RevealAll mode.
&lower_slice_len::LowerSliceLenCalls, // has to be done before inlining, otherwise actual call will be almost always inlined. Also simple, so can just do first
&normalize_array_len::NormalizeArrayLen, // has to run after `slice::len` lowering
&unreachable_prop::UnreachablePropagation,
&uninhabited_enum_branching::UninhabitedEnumBranching,
&o1(simplify::SimplifyCfg::new("after-uninhabited-enum-branching")),
&inline::Inline,
&remove_storage_markers::RemoveStorageMarkers,
&remove_zsts::RemoveZsts,
&normalize_array_len::NormalizeArrayLen, // has to run after `slice::len` lowering
&const_goto::ConstGoto,
&remove_unneeded_drops::RemoveUnneededDrops,
&sroa::ScalarReplacementOfAggregates,