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Replace NormalizeArrayLen with GVN

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GVN is actually on in release, and covers all the same things (or more), with `LowerSliceLen` changed to produce `PtrMetadata`.
This commit is contained in:
Scott McMurray 2024-06-16 01:22:58 -07:00
parent 4a7b6c0e6c
commit b611b6bbb8
30 changed files with 138 additions and 218 deletions
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4
compiler/rustc_mir_transform/src/lib.rs
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@ -88,7 +88,6 @@ mod lower_slice_len;
mod match_branches;
mod mentioned_items;
mod multiple_return_terminators;
mod normalize_array_len;
mod nrvo;
mod prettify;
mod promote_consts;
@ -581,9 +580,6 @@ fn run_optimization_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
&o1(simplify::SimplifyCfg::AfterUnreachableEnumBranching),
// Inlining may have introduced a lot of redundant code and a large move pattern.
// Now, we need to shrink the generated MIR.
// Has to run after `slice::len` lowering
&normalize_array_len::NormalizeArrayLen,
&ref_prop::ReferencePropagation,
&sroa::ScalarReplacementOfAggregates,
&match_branches::MatchBranchSimplification,