bjoernager/rust
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treat host effect params as erased generics in codegen

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This fixes the changes brought to codegen tests when effect params are
added to libcore, by not attempting to monomorphize functions that get
the host param by being `const fn`.
This commit is contained in:
Deadbeef 2023-09-13 13:55:23 +00:00
parent 7e0261e7ea
commit a0a801cd38
17 changed files with 71 additions and 41 deletions
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3
compiler/rustc_monomorphize/src/collector.rs
View file

@ -459,7 +459,7 @@ fn collect_items_rec<'tcx>(
// Check for PMEs and emit a diagnostic if one happened. To try to show relevant edges of the
// mono item graph.
if tcx.sess.diagnostic().err_count() > error_count
&& starting_item.node.is_generic_fn()
&& starting_item.node.is_generic_fn(tcx)
&& starting_item.node.is_user_defined()
{
let formatted_item = with_no_trimmed_paths!(starting_item.node.to_string());
@ -1315,6 +1315,7 @@ fn create_mono_items_for_default_impls<'tcx>(
// it, to validate whether or not the impl is legal to instantiate at all.
let only_region_params = |param: &ty::GenericParamDef, _: &_| match param.kind {
GenericParamDefKind::Lifetime => tcx.lifetimes.re_erased.into(),
GenericParamDefKind::Const { is_host_effect: true, .. } => tcx.consts.true_.into(),
GenericParamDefKind::Type { .. } | GenericParamDefKind::Const { .. } => {
unreachable!(
"`own_requires_monomorphization` check means that \

4
compiler/rustc_monomorphize/src/partitioning.rs
View file

@ -221,7 +221,7 @@ where
}
let characteristic_def_id = characteristic_def_id_of_mono_item(cx.tcx, mono_item);
let is_volatile = is_incremental_build && mono_item.is_generic_fn();
let is_volatile = is_incremental_build && mono_item.is_generic_fn(cx.tcx);
let cgu_name = match characteristic_def_id {
Some(def_id) => compute_codegen_unit_name(
@ -801,7 +801,7 @@ fn mono_item_visibility<'tcx>(
return Visibility::Hidden;
}
let is_generic = instance.args.non_erasable_generics().next().is_some();
let is_generic = instance.args.non_erasable_generics(tcx, def_id).next().is_some();
// Upstream `DefId` instances get different handling than local ones.
let Some(def_id) = def_id.as_local() else {