bjoernager/rust
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add crate-local -Z reference_niches unstable flag (does nothing for now)

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This commit is contained in:
Moulins 2023-06-23 21:05:24 +02:00
parent 30ae640a3c
commit 8b847ef734
10 changed files with 61 additions and 3 deletions
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11
compiler/rustc_ty_utils/src/layout.rs
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@ -3,7 +3,7 @@ use rustc_hir as hir;
use rustc_index::bit_set::BitSet;
use rustc_index::{IndexSlice, IndexVec};
use rustc_middle::mir::{GeneratorLayout, GeneratorSavedLocal};
use rustc_middle::query::Providers;
use rustc_middle::query::{LocalCrate, Providers};
use rustc_middle::ty::layout::{
IntegerExt, LayoutCx, LayoutError, LayoutOf, NaiveLayout, TyAndLayout, TyAndNaiveLayout,
MAX_SIMD_LANES,
@ -25,7 +25,14 @@ use crate::errors::{
use crate::layout_sanity_check::sanity_check_layout;
pub fn provide(providers: &mut Providers) {
*providers = Providers { layout_of, naive_layout_of, ..*providers };
*providers = Providers { layout_of, naive_layout_of, reference_niches_policy, ..*providers };
}
#[instrument(skip(tcx), level = "debug")]
fn reference_niches_policy<'tcx>(tcx: TyCtxt<'tcx>, _: LocalCrate) -> ReferenceNichePolicy {
const DEFAULT: ReferenceNichePolicy = ReferenceNichePolicy { size: false, align: false };
tcx.sess.opts.unstable_opts.reference_niches.unwrap_or(DEFAULT)
}
#[instrument(skip(tcx, query), level = "debug")]