bjoernager/rust
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Dejargnonize subst

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This commit is contained in:
Shoyu Vanilla 2024-02-12 15:39:32 +09:00
parent 084ce5bdb5
commit 3856df059e
128 changed files with 574 additions and 541 deletions
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8
compiler/rustc_mir_transform/src/lib.rs
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@ -436,7 +436,7 @@ fn mir_drops_elaborated_and_const_checked(tcx: TyCtxt<'_>, def: LocalDefId) -> &
//
// We manually filter the predicates, skipping anything that's not
// "global". We are in a potentially generic context
// (e.g. we are evaluating a function without substituting generic
// (e.g. we are evaluating a function without instantiating generic
// parameters, so this filtering serves two purposes:
//
// 1. We skip evaluating any predicates that we would
@ -576,10 +576,10 @@ fn run_optimization_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
&inline::Inline,
// Code from other crates may have storage markers, so this needs to happen after inlining.
&remove_storage_markers::RemoveStorageMarkers,
// Inlining and substitution may introduce ZST and useless drops.
// Inlining and instantiation may introduce ZST and useless drops.
&remove_zsts::RemoveZsts,
&remove_unneeded_drops::RemoveUnneededDrops,
// Type substitution may create uninhabited enums.
// Type instantiation may create uninhabited enums.
&uninhabited_enum_branching::UninhabitedEnumBranching,
&unreachable_prop::UnreachablePropagation,
&o1(simplify::SimplifyCfg::AfterUninhabitedEnumBranching),
@ -673,7 +673,7 @@ fn inner_optimized_mir(tcx: TyCtxt<'_>, did: LocalDefId) -> Body<'_> {
}
/// Fetch all the promoteds of an item and prepare their MIR bodies to be ready for
/// constant evaluation once all substitutions become known.
/// constant evaluation once all generic parameters become known.
fn promoted_mir(tcx: TyCtxt<'_>, def: LocalDefId) -> &IndexVec<Promoted, Body<'_>> {
if tcx.is_constructor(def.to_def_id()) {
return tcx.arena.alloc(IndexVec::new());