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use crate::ty::{self, TyCtxt};
use rustc_data_structures::profiling::SelfProfilerRef;
use rustc_query_system::ich::StableHashingContext;
use rustc_session::Session;
#[macro_use]
mod dep_node;
pub use rustc_query_system::dep_graph::{
debug::DepNodeFilter, hash_result, DepContext, DepNodeColor, DepNodeIndex,
SerializedDepNodeIndex, WorkProduct, WorkProductId,
};
pub use dep_node::{label_strs, DepKind, DepKindStruct, DepNode, DepNodeExt};
pub(crate) use dep_node::{make_compile_codegen_unit, make_compile_mono_item};
pub type DepGraph = rustc_query_system::dep_graph::DepGraph<DepKind>;
pub type TaskDeps = rustc_query_system::dep_graph::TaskDeps<DepKind>;
pub type TaskDepsRef<'a> = rustc_query_system::dep_graph::TaskDepsRef<'a, DepKind>;
pub type DepGraphQuery = rustc_query_system::dep_graph::DepGraphQuery<DepKind>;
pub type SerializedDepGraph = rustc_query_system::dep_graph::SerializedDepGraph<DepKind>;
pub type EdgeFilter = rustc_query_system::dep_graph::debug::EdgeFilter<DepKind>;
impl rustc_query_system::dep_graph::DepKind for DepKind {
const NULL: Self = DepKind::Null;
const RED: Self = DepKind::Red;
fn debug_node(node: &DepNode, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{:?}(", node.kind)?;
ty::tls::with_opt(|opt_tcx| {
if let Some(tcx) = opt_tcx {
if let Some(def_id) = node.extract_def_id(tcx) {
write!(f, "{}", tcx.def_path_debug_str(def_id))?;
} else if let Some(ref s) = tcx.dep_graph.dep_node_debug_str(*node) {
write!(f, "{}", s)?;
} else {
write!(f, "{}", node.hash)?;
}
} else {
write!(f, "{}", node.hash)?;
}
Ok(())
})?;
write!(f, ")")
}
fn with_deps<OP, R>(task_deps: TaskDepsRef<'_>, op: OP) -> R
where
OP: FnOnce() -> R,
{
ty::tls::with_context(|icx| {
let icx = ty::tls::ImplicitCtxt { task_deps, ..icx.clone() };
ty::tls::enter_context(&icx, |_| op())
})
}
fn read_deps<OP>(op: OP)
where
OP: for<'a> FnOnce(TaskDepsRef<'a>),
{
ty::tls::with_context_opt(|icx| {
let Some(icx) = icx else { return };
op(icx.task_deps)
})
}
}
impl<'tcx> DepContext for TyCtxt<'tcx> {
type DepKind = DepKind;
#[inline]
fn with_stable_hashing_context<R>(&self, f: impl FnOnce(StableHashingContext<'_>) -> R) -> R {
TyCtxt::with_stable_hashing_context(*self, f)
}
#[inline]
fn dep_graph(&self) -> &DepGraph {
&self.dep_graph
}
#[inline(always)]
fn profiler(&self) -> &SelfProfilerRef {
&self.prof
}
#[inline(always)]
fn sess(&self) -> &Session {
self.sess
}
#[inline(always)]
fn fingerprint_style(&self, kind: DepKind) -> rustc_query_system::dep_graph::FingerprintStyle {
kind.fingerprint_style(*self)
}
#[inline(always)]
fn is_eval_always(&self, kind: DepKind) -> bool {
self.query_kind(kind).is_eval_always
}
fn try_force_from_dep_node(&self, dep_node: DepNode) -> bool {
debug!("try_force_from_dep_node({:?}) --- trying to force", dep_node);
// We must avoid ever having to call `force_from_dep_node()` for a
// `DepNode::codegen_unit`:
// Since we cannot reconstruct the query key of a `DepNode::codegen_unit`, we
// would always end up having to evaluate the first caller of the
// `codegen_unit` query that *is* reconstructible. This might very well be
// the `compile_codegen_unit` query, thus re-codegenning the whole CGU just
// to re-trigger calling the `codegen_unit` query with the right key. At
// that point we would already have re-done all the work we are trying to
// avoid doing in the first place.
// The solution is simple: Just explicitly call the `codegen_unit` query for
// each CGU, right after partitioning. This way `try_mark_green` will always
// hit the cache instead of having to go through `force_from_dep_node`.
// This assertion makes sure, we actually keep applying the solution above.
debug_assert!(
dep_node.kind != DepKind::codegen_unit,
"calling force_from_dep_node() on DepKind::codegen_unit"
);
let cb = self.query_kind(dep_node.kind);
if let Some(f) = cb.force_from_dep_node {
f(*self, dep_node);
true
} else {
false
}
}
fn try_load_from_on_disk_cache(&self, dep_node: DepNode) {
let cb = self.query_kind(dep_node.kind);
if let Some(f) = cb.try_load_from_on_disk_cache {
f(*self, dep_node)
}
}
}
|
