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Rollup merge of #77550 - lcnr:ty-dep-path-ct-cleanup, r=ecstatic-morse

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add shims for WithOptConstParam query calls

r? @ecstatic-morse @eddyb
This commit is contained in:
Yuki Okushi 2020-10-13 04:07:50 +09:00 committed by GitHub
commit 687d7646de
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 41 additions and 33 deletions
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36
compiler/rustc_middle/src/mir/query.rs
View File

@ -1,9 +1,10 @@
//! Values computed by queries that use MIR.
use crate::mir::{Body, Promoted};
use crate::mir::{abstract_const, Body, Promoted};
use crate::ty::{self, Ty, TyCtxt};
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::sync::Lrc;
use rustc_errors::ErrorReported;
use rustc_hir as hir;
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_index::bit_set::BitMatrix;
@ -407,7 +408,12 @@ pub struct CoverageInfo {
pub num_expressions: u32,
}
/// Shims which make dealing with `WithOptConstParam` easier.
///
/// For more information on why this is needed, consider looking
/// at the docs for `WithOptConstParam` itself.
impl<'tcx> TyCtxt<'tcx> {
#[inline]
pub fn mir_borrowck_opt_const_arg(
self,
def: ty::WithOptConstParam<LocalDefId>,
@ -419,6 +425,7 @@ impl<'tcx> TyCtxt<'tcx> {
}
}
#[inline]
pub fn mir_const_qualif_opt_const_arg(
self,
def: ty::WithOptConstParam<LocalDefId>,
@ -430,7 +437,8 @@ impl<'tcx> TyCtxt<'tcx> {
}
}
pub fn promoted_mir_of_opt_const_arg(
#[inline]
pub fn promoted_mir_opt_const_arg(
self,
def: ty::WithOptConstParam<DefId>,
) -> &'tcx IndexVec<Promoted, Body<'tcx>> {
@ -440,4 +448,28 @@ impl<'tcx> TyCtxt<'tcx> {
self.promoted_mir(def.did)
}
}
#[inline]
pub fn optimized_mir_opt_const_arg(
self,
def: ty::WithOptConstParam<DefId>,
) -> &'tcx Body<'tcx> {
if let Some((did, param_did)) = def.as_const_arg() {
self.optimized_mir_of_const_arg((did, param_did))
} else {
self.optimized_mir(def.did)
}
}
#[inline]
pub fn mir_abstract_const_opt_const_arg(
self,
def: ty::WithOptConstParam<DefId>,
) -> Result<Option<&'tcx [abstract_const::Node<'tcx>]>, ErrorReported> {
if let Some((did, param_did)) = def.as_const_arg() {
self.mir_abstract_const_of_const_arg((did, param_did))
} else {
self.mir_abstract_const(def.did)
}
}
}

8
compiler/rustc_middle/src/ty/mod.rs
View File

@ -2953,13 +2953,7 @@ impl<'tcx> TyCtxt<'tcx> {
/// Returns the possibly-auto-generated MIR of a `(DefId, Subst)` pair.
pub fn instance_mir(self, instance: ty::InstanceDef<'tcx>) -> &'tcx Body<'tcx> {
match instance {
ty::InstanceDef::Item(def) => {
if let Some((did, param_did)) = def.as_const_arg() {
self.optimized_mir_of_const_arg((did, param_did))
} else {
self.optimized_mir(def.did)
}
}
ty::InstanceDef::Item(def) => self.optimized_mir_opt_const_arg(def),
ty::InstanceDef::VtableShim(..)
| ty::InstanceDef::ReifyShim(..)
| ty::InstanceDef::Intrinsic(..)

2
compiler/rustc_mir/src/const_eval/eval_queries.rs
View File

@ -343,7 +343,7 @@ pub fn eval_to_allocation_raw_provider<'tcx>(
// deny-by-default lint
_ => {
if let Some(p) = cid.promoted {
let span = tcx.promoted_mir_of_opt_const_arg(def.to_global())[p].span;
let span = tcx.promoted_mir_opt_const_arg(def.to_global())[p].span;
if let err_inval!(ReferencedConstant) = err.error {
Err(err.report_as_error(
tcx.at(span),

8
compiler/rustc_mir/src/interpret/eval_context.rs
View File

@ -477,16 +477,12 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
}
trace!("load mir(instance={:?}, promoted={:?})", instance, promoted);
if let Some(promoted) = promoted {
return Ok(&self.tcx.promoted_mir_of_opt_const_arg(def)[promoted]);
return Ok(&self.tcx.promoted_mir_opt_const_arg(def)[promoted]);
}
match instance {
ty::InstanceDef::Item(def) => {
if self.tcx.is_mir_available(def.did) {
if let Some((did, param_did)) = def.as_const_arg() {
Ok(self.tcx.optimized_mir_of_const_arg((did, param_did)))
} else {
Ok(self.tcx.optimized_mir(def.did))
}
Ok(self.tcx.optimized_mir_opt_const_arg(def))
} else {
throw_unsup!(NoMirFor(def.did))
}

6
compiler/rustc_mir/src/transform/mod.rs
View File

@ -287,11 +287,7 @@ fn mir_promoted(
// this point, before we steal the mir-const result.
// Also this means promotion can rely on all const checks having been done.
let _ = tcx.mir_const_qualif_opt_const_arg(def);
let _ = if let Some(param_did) = def.const_param_did {
tcx.mir_abstract_const_of_const_arg((def.did, param_did))
} else {
tcx.mir_abstract_const(def.did.to_def_id())
};
let _ = tcx.mir_abstract_const_opt_const_arg(def.to_global());
let mut body = tcx.mir_const(def).steal();
let mut required_consts = Vec::new();

14
compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
View File

@ -147,11 +147,7 @@ pub fn is_const_evaluatable<'cx, 'tcx>(
if concrete.is_ok() && substs.has_param_types_or_consts() {
match infcx.tcx.def_kind(def.did) {
DefKind::AnonConst => {
let mir_body = if let Some(def) = def.as_const_arg() {
infcx.tcx.optimized_mir_of_const_arg(def)
} else {
infcx.tcx.optimized_mir(def.did)
};
let mir_body = infcx.tcx.optimized_mir_opt_const_arg(def);
if mir_body.is_polymorphic {
future_compat_lint();
@ -212,13 +208,7 @@ impl AbstractConst<'tcx> {
def: ty::WithOptConstParam<DefId>,
substs: SubstsRef<'tcx>,
) -> Result<Option<AbstractConst<'tcx>>, ErrorReported> {
let inner = match (def.did.as_local(), def.const_param_did) {
(Some(did), Some(param_did)) => {
tcx.mir_abstract_const_of_const_arg((did, param_did))?
}
_ => tcx.mir_abstract_const(def.did)?,
};
let inner = tcx.mir_abstract_const_opt_const_arg(def)?;
Ok(inner.map(|inner| AbstractConst { inner, substs }))
}