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Auto merge of rust-lang#125931 - matthiaskrgr:rollup-m3lqr4i, r=matth…
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Rollup of 9 pull requests

Successful merges:

 - rust-lang#122597 (Show files produced by `--emit foo` in json artifact notifications)
 - rust-lang#124486 (Add tracking issue and unstable book page for `"vectorcall"` ABI)
 - rust-lang#125380 (Make `WHERE_CLAUSES_OBJECT_SAFETY` a regular object safety violation)
 - rust-lang#125690 (ARM Target Docs Update)
 - rust-lang#125865 (Fix ICE caused by ignoring EffectVars in type inference)
 - rust-lang#125893 (Handle all GVN binops in a single place.)
 - rust-lang#125909 (rustdoc: add a regression test for a former blanket impl synthesis ICE)
 - rust-lang#125918 (Revert: create const block bodies in typeck via query feeding)
 - rust-lang#125919 (Remove stray "this")

r? `@ghost`
`@rustbot` modify labels: rollup
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bors committed Jun 3, 2024
2 parents eb5e244 + 69d8f62 commit 6a518ff
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Showing 92 changed files with 661 additions and 473 deletions.
2 changes: 1 addition & 1 deletion compiler/rustc_ast/src/ast.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1392,7 +1392,7 @@ pub enum ExprKind {
/// An array (e.g, `[a, b, c, d]`).
Array(ThinVec<P<Expr>>),
/// Allow anonymous constants from an inline `const` block
ConstBlock(P<Expr>),
ConstBlock(AnonConst),
/// A function call
///
/// The first field resolves to the function itself,
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_ast/src/mut_visit.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1411,7 +1411,7 @@ pub fn noop_visit_expr<T: MutVisitor>(
match kind {
ExprKind::Array(exprs) => visit_thin_exprs(exprs, vis),
ExprKind::ConstBlock(anon_const) => {
vis.visit_expr(anon_const);
vis.visit_anon_const(anon_const);
}
ExprKind::Repeat(expr, count) => {
vis.visit_expr(expr);
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_ast/src/visit.rs
Original file line number Diff line number Diff line change
Expand Up @@ -954,7 +954,7 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) -> V
ExprKind::Array(subexpressions) => {
walk_list!(visitor, visit_expr, subexpressions);
}
ExprKind::ConstBlock(anon_const) => try_visit!(visitor.visit_expr(anon_const)),
ExprKind::ConstBlock(anon_const) => try_visit!(visitor.visit_anon_const(anon_const)),
ExprKind::Repeat(element, count) => {
try_visit!(visitor.visit_expr(element));
try_visit!(visitor.visit_anon_const(count));
Expand Down
8 changes: 6 additions & 2 deletions compiler/rustc_ast_lowering/src/expr.rs
Original file line number Diff line number Diff line change
Expand Up @@ -75,8 +75,12 @@ impl<'hir> LoweringContext<'_, 'hir> {
let kind = match &e.kind {
ExprKind::Array(exprs) => hir::ExprKind::Array(self.lower_exprs(exprs)),
ExprKind::ConstBlock(c) => {
self.has_inline_consts = true;
hir::ExprKind::ConstBlock(self.lower_expr(c))
let c = self.with_new_scopes(c.value.span, |this| hir::ConstBlock {
def_id: this.local_def_id(c.id),
hir_id: this.lower_node_id(c.id),
body: this.lower_const_body(c.value.span, Some(&c.value)),
});
hir::ExprKind::ConstBlock(c)
}
ExprKind::Repeat(expr, count) => {
let expr = self.lower_expr(expr);
Expand Down
8 changes: 8 additions & 0 deletions compiler/rustc_ast_lowering/src/index.rs
Original file line number Diff line number Diff line change
Expand Up @@ -236,6 +236,14 @@ impl<'a, 'hir> Visitor<'hir> for NodeCollector<'a, 'hir> {
});
}

fn visit_inline_const(&mut self, constant: &'hir ConstBlock) {
self.insert(DUMMY_SP, constant.hir_id, Node::ConstBlock(constant));

self.with_parent(constant.hir_id, |this| {
intravisit::walk_inline_const(this, constant);
});
}

fn visit_expr(&mut self, expr: &'hir Expr<'hir>) {
self.insert(expr.span, expr.hir_id, Node::Expr(expr));

Expand Down
8 changes: 1 addition & 7 deletions compiler/rustc_ast_lowering/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -96,8 +96,6 @@ struct LoweringContext<'a, 'hir> {

/// Bodies inside the owner being lowered.
bodies: Vec<(hir::ItemLocalId, &'hir hir::Body<'hir>)>,
/// Whether there were inline consts that typeck will split out into bodies
has_inline_consts: bool,
/// Attributes inside the owner being lowered.
attrs: SortedMap<hir::ItemLocalId, &'hir [Attribute]>,
/// Collect items that were created by lowering the current owner.
Expand Down Expand Up @@ -160,7 +158,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
item_local_id_counter: hir::ItemLocalId::ZERO,
node_id_to_local_id: Default::default(),
trait_map: Default::default(),
has_inline_consts: false,

// Lowering state.
catch_scope: None,
Expand Down Expand Up @@ -570,7 +567,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {

let current_attrs = std::mem::take(&mut self.attrs);
let current_bodies = std::mem::take(&mut self.bodies);
let current_has_inline_consts = std::mem::take(&mut self.has_inline_consts);
let current_node_ids = std::mem::take(&mut self.node_id_to_local_id);
let current_trait_map = std::mem::take(&mut self.trait_map);
let current_owner =
Expand All @@ -597,7 +593,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {

self.attrs = current_attrs;
self.bodies = current_bodies;
self.has_inline_consts = current_has_inline_consts;
self.node_id_to_local_id = current_node_ids;
self.trait_map = current_trait_map;
self.current_hir_id_owner = current_owner;
Expand Down Expand Up @@ -634,7 +629,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
let attrs = std::mem::take(&mut self.attrs);
let mut bodies = std::mem::take(&mut self.bodies);
let trait_map = std::mem::take(&mut self.trait_map);
let has_inline_consts = std::mem::take(&mut self.has_inline_consts);

#[cfg(debug_assertions)]
for (id, attrs) in attrs.iter() {
Expand All @@ -652,7 +646,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
self.tcx.hash_owner_nodes(node, &bodies, &attrs);
let num_nodes = self.item_local_id_counter.as_usize();
let (nodes, parenting) = index::index_hir(self.tcx, node, &bodies, num_nodes);
let nodes = hir::OwnerNodes { opt_hash_including_bodies, nodes, bodies, has_inline_consts };
let nodes = hir::OwnerNodes { opt_hash_including_bodies, nodes, bodies };
let attrs = hir::AttributeMap { map: attrs, opt_hash: attrs_hash };

self.arena.alloc(hir::OwnerInfo { nodes, parenting, attrs, trait_map })
Expand Down
5 changes: 2 additions & 3 deletions compiler/rustc_ast_pretty/src/pprust/state/expr.rs
Original file line number Diff line number Diff line change
Expand Up @@ -380,9 +380,8 @@ impl<'a> State<'a> {
ast::ExprKind::Array(exprs) => {
self.print_expr_vec(exprs);
}
ast::ExprKind::ConstBlock(expr) => {
self.word_space("const");
self.print_expr(expr, FixupContext::default());
ast::ExprKind::ConstBlock(anon_const) => {
self.print_expr_anon_const(anon_const, attrs);
}
ast::ExprKind::Repeat(element, count) => {
self.print_expr_repeat(element, count);
Expand Down
23 changes: 23 additions & 0 deletions compiler/rustc_codegen_cranelift/src/driver/aot.rs
Original file line number Diff line number Diff line change
Expand Up @@ -288,6 +288,29 @@ fn produce_final_output_artifacts(
}
}

if sess.opts.json_artifact_notifications {
if codegen_results.modules.len() == 1 {
codegen_results.modules[0].for_each_output(|_path, ty| {
if sess.opts.output_types.contains_key(&ty) {
let descr = ty.shorthand();
// for single cgu file is renamed to drop cgu specific suffix
// so we regenerate it the same way
let path = crate_output.path(ty);
sess.dcx().emit_artifact_notification(path.as_path(), descr);
}
});
} else {
for module in &codegen_results.modules {
module.for_each_output(|path, ty| {
if sess.opts.output_types.contains_key(&ty) {
let descr = ty.shorthand();
sess.dcx().emit_artifact_notification(&path, descr);
}
});
}
}
}

// We leave the following files around by default:
// - #crate#.o
// - #crate#.crate.metadata.o
Expand Down
23 changes: 23 additions & 0 deletions compiler/rustc_codegen_ssa/src/back/write.rs
Original file line number Diff line number Diff line change
Expand Up @@ -717,6 +717,29 @@ fn produce_final_output_artifacts(
}
}

if sess.opts.json_artifact_notifications {
if compiled_modules.modules.len() == 1 {
compiled_modules.modules[0].for_each_output(|_path, ty| {
if sess.opts.output_types.contains_key(&ty) {
let descr = ty.shorthand();
// for single cgu file is renamed to drop cgu specific suffix
// so we regenerate it the same way
let path = crate_output.path(ty);
sess.dcx().emit_artifact_notification(path.as_path(), descr);
}
});
} else {
for module in &compiled_modules.modules {
module.for_each_output(|path, ty| {
if sess.opts.output_types.contains_key(&ty) {
let descr = ty.shorthand();
sess.dcx().emit_artifact_notification(&path, descr);
}
});
}
}
}

// We leave the following files around by default:
// - #crate#.o
// - #crate#.crate.metadata.o
Expand Down
18 changes: 18 additions & 0 deletions compiler/rustc_codegen_ssa/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,24 @@ pub struct CompiledModule {
pub llvm_ir: Option<PathBuf>, // --emit=llvm-ir, llvm-bc is in bytecode
}

impl CompiledModule {
/// Call `emit` function with every artifact type currently compiled
pub fn for_each_output(&self, mut emit: impl FnMut(&Path, OutputType)) {
if let Some(path) = self.object.as_deref() {
emit(path, OutputType::Object);
}
if let Some(path) = self.bytecode.as_deref() {
emit(path, OutputType::Bitcode);
}
if let Some(path) = self.llvm_ir.as_deref() {
emit(path, OutputType::LlvmAssembly);
}
if let Some(path) = self.assembly.as_deref() {
emit(path, OutputType::Assembly);
}
}
}

pub struct CachedModuleCodegen {
pub name: String,
pub source: WorkProduct,
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_const_eval/src/const_eval/fn_queries.rs
Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@ fn constness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Constness {
match node {
hir::Node::Ctor(_)
| hir::Node::AnonConst(_)
| hir::Node::ConstBlock(_)
| hir::Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Const(..), .. }) => {
hir::Constness::Const
}
Expand All @@ -56,7 +57,6 @@ fn constness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Constness {
if is_const { hir::Constness::Const } else { hir::Constness::NotConst }
}
hir::Node::Expr(e) if let hir::ExprKind::Closure(c) = e.kind => c.constness,
hir::Node::Expr(e) if let hir::ExprKind::ConstBlock(_) = e.kind => hir::Constness::Const,
_ => {
if let Some(fn_kind) = node.fn_kind() {
if fn_kind.constness() == hir::Constness::Const {
Expand Down
4 changes: 2 additions & 2 deletions compiler/rustc_feature/src/unstable.rs
Original file line number Diff line number Diff line change
Expand Up @@ -177,8 +177,6 @@ declare_features! (

/// Allows using the `unadjusted` ABI; perma-unstable.
(internal, abi_unadjusted, "1.16.0", None),
/// Allows using the `vectorcall` ABI.
(unstable, abi_vectorcall, "1.7.0", None),
/// Allows using `#![needs_allocator]`, an implementation detail of `#[global_allocator]`.
(internal, allocator_internals, "1.20.0", None),
/// Allows using `#[allow_internal_unsafe]`. This is an
Expand Down Expand Up @@ -243,6 +241,8 @@ declare_features! (
// feature-group-start: internal feature gates
// -------------------------------------------------------------------------

/// Allows using the `vectorcall` ABI.
(unstable, abi_vectorcall, "1.7.0", Some(124485)),
/// Allows features specific to auto traits.
/// Renamed from `optin_builtin_traits`.
(unstable, auto_traits, "1.50.0", Some(13231)),
Expand Down
17 changes: 13 additions & 4 deletions compiler/rustc_hir/src/hir.rs
Original file line number Diff line number Diff line change
Expand Up @@ -907,9 +907,6 @@ pub struct OwnerNodes<'tcx> {
pub nodes: IndexVec<ItemLocalId, ParentedNode<'tcx>>,
/// Content of local bodies.
pub bodies: SortedMap<ItemLocalId, &'tcx Body<'tcx>>,
/// Whether the body contains inline constants that are created for the query system during typeck
/// of the body.
pub has_inline_consts: bool,
}

impl<'tcx> OwnerNodes<'tcx> {
Expand Down Expand Up @@ -1626,6 +1623,14 @@ pub struct AnonConst {
pub span: Span,
}

/// An inline constant expression `const { something }`.
#[derive(Copy, Clone, Debug, HashStable_Generic)]
pub struct ConstBlock {
pub hir_id: HirId,
pub def_id: LocalDefId,
pub body: BodyId,
}

/// An expression.
#[derive(Debug, Clone, Copy, HashStable_Generic)]
pub struct Expr<'hir> {
Expand Down Expand Up @@ -1912,7 +1917,7 @@ pub fn is_range_literal(expr: &Expr<'_>) -> bool {
#[derive(Debug, Clone, Copy, HashStable_Generic)]
pub enum ExprKind<'hir> {
/// Allow anonymous constants from an inline `const` block
ConstBlock(&'hir Expr<'hir>),
ConstBlock(ConstBlock),
/// An array (e.g., `[a, b, c, d]`).
Array(&'hir [Expr<'hir>]),
/// A function call.
Expand Down Expand Up @@ -3644,6 +3649,7 @@ pub enum Node<'hir> {
Variant(&'hir Variant<'hir>),
Field(&'hir FieldDef<'hir>),
AnonConst(&'hir AnonConst),
ConstBlock(&'hir ConstBlock),
Expr(&'hir Expr<'hir>),
ExprField(&'hir ExprField<'hir>),
Stmt(&'hir Stmt<'hir>),
Expand Down Expand Up @@ -3704,6 +3710,7 @@ impl<'hir> Node<'hir> {
Node::PreciseCapturingNonLifetimeArg(a) => Some(a.ident),
Node::Param(..)
| Node::AnonConst(..)
| Node::ConstBlock(..)
| Node::Expr(..)
| Node::Stmt(..)
| Node::Block(..)
Expand Down Expand Up @@ -3801,6 +3808,7 @@ impl<'hir> Node<'hir> {
}

Node::AnonConst(constant) => Some((constant.def_id, constant.body)),
Node::ConstBlock(constant) => Some((constant.def_id, constant.body)),

_ => None,
}
Expand Down Expand Up @@ -3869,6 +3877,7 @@ impl<'hir> Node<'hir> {
expect_variant, &'hir Variant<'hir>, Node::Variant(n), n;
expect_field, &'hir FieldDef<'hir>, Node::Field(n), n;
expect_anon_const, &'hir AnonConst, Node::AnonConst(n), n;
expect_inline_const, &'hir ConstBlock, Node::ConstBlock(n), n;
expect_expr, &'hir Expr<'hir>, Node::Expr(n), n;
expect_expr_field, &'hir ExprField<'hir>, Node::ExprField(n), n;
expect_stmt, &'hir Stmt<'hir>, Node::Stmt(n), n;
Expand Down
13 changes: 12 additions & 1 deletion compiler/rustc_hir/src/intravisit.rs
Original file line number Diff line number Diff line change
Expand Up @@ -344,6 +344,9 @@ pub trait Visitor<'v>: Sized {
fn visit_anon_const(&mut self, c: &'v AnonConst) -> Self::Result {
walk_anon_const(self, c)
}
fn visit_inline_const(&mut self, c: &'v ConstBlock) -> Self::Result {
walk_inline_const(self, c)
}
fn visit_expr(&mut self, ex: &'v Expr<'v>) -> Self::Result {
walk_expr(self, ex)
}
Expand Down Expand Up @@ -716,14 +719,22 @@ pub fn walk_anon_const<'v, V: Visitor<'v>>(visitor: &mut V, constant: &'v AnonCo
visitor.visit_nested_body(constant.body)
}

pub fn walk_inline_const<'v, V: Visitor<'v>>(
visitor: &mut V,
constant: &'v ConstBlock,
) -> V::Result {
try_visit!(visitor.visit_id(constant.hir_id));
visitor.visit_nested_body(constant.body)
}

pub fn walk_expr<'v, V: Visitor<'v>>(visitor: &mut V, expression: &'v Expr<'v>) -> V::Result {
try_visit!(visitor.visit_id(expression.hir_id));
match expression.kind {
ExprKind::Array(subexpressions) => {
walk_list!(visitor, visit_expr, subexpressions);
}
ExprKind::ConstBlock(ref const_block) => {
try_visit!(visitor.visit_expr(const_block))
try_visit!(visitor.visit_inline_const(const_block))
}
ExprKind::Repeat(ref element, ref count) => {
try_visit!(visitor.visit_expr(element));
Expand Down
3 changes: 1 addition & 2 deletions compiler/rustc_hir/src/stable_hash_impls.rs
Original file line number Diff line number Diff line change
Expand Up @@ -93,8 +93,7 @@ impl<'tcx, HirCtx: crate::HashStableContext> HashStable<HirCtx> for OwnerNodes<'
// `local_id_to_def_id` is also ignored because is dependent on the body, then just hashing
// the body satisfies the condition of two nodes being different have different
// `hash_stable` results.
let OwnerNodes { opt_hash_including_bodies, nodes: _, bodies: _, has_inline_consts: _ } =
*self;
let OwnerNodes { opt_hash_including_bodies, nodes: _, bodies: _ } = *self;
opt_hash_including_bodies.unwrap().hash_stable(hcx, hasher);
}
}
Expand Down
7 changes: 2 additions & 5 deletions compiler/rustc_hir_analysis/src/check/region.rs
Original file line number Diff line number Diff line change
Expand Up @@ -407,14 +407,11 @@ fn resolve_expr<'tcx>(visitor: &mut RegionResolutionVisitor<'tcx>, expr: &'tcx h
match expr.kind {
// Manually recurse over closures and inline consts, because they are the only
// case of nested bodies that share the parent environment.
hir::ExprKind::Closure(&hir::Closure { body, .. }) => {
hir::ExprKind::Closure(&hir::Closure { body, .. })
| hir::ExprKind::ConstBlock(hir::ConstBlock { body, .. }) => {
let body = visitor.tcx.hir().body(body);
visitor.visit_body(body);
}
hir::ExprKind::ConstBlock(expr) => visitor.enter_body(expr.hir_id, |this| {
this.cx.var_parent = None;
resolve_local(this, None, Some(expr));
}),
hir::ExprKind::AssignOp(_, left_expr, right_expr) => {
debug!(
"resolve_expr - enabling pessimistic_yield, was previously {}",
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_hir_analysis/src/check/wfcheck.rs
Original file line number Diff line number Diff line change
Expand Up @@ -881,7 +881,7 @@ fn check_object_unsafe_self_trait_by_name(tcx: TyCtxt<'_>, item: &hir::TraitItem
_ => {}
}
if !trait_should_be_self.is_empty() {
if tcx.check_is_object_safe(trait_def_id) {
if tcx.is_object_safe(trait_def_id) {
return;
}
let sugg = trait_should_be_self.iter().map(|span| (*span, "Self".to_string())).collect();
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_hir_analysis/src/coherence/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -191,7 +191,7 @@ fn check_object_overlap<'tcx>(
});

for component_def_id in component_def_ids {
if !tcx.check_is_object_safe(component_def_id) {
if !tcx.is_object_safe(component_def_id) {
// Without the 'object_safe_for_dispatch' feature this is an error
// which will be reported by wfcheck. Ignore it here.
// This is tested by `coherence-impl-trait-for-trait-object-safe.rs`.
Expand Down
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