Change singleton returned type to a reference

We do not need a raw pointer for this singleton,
nor we need having it on the heap through a
smart pointer.

gcc/rust/ChangeLog:

* ast/rust-ast.h: Change dereference from a pointer to a reference
accessor.
* ast/rust-expr.h: Likewise.
* ast/rust-item.h: Likewise.
* ast/rust-macro.h: Likewise.
* ast/rust-path.h: Likewise.
* ast/rust-pattern.h: Likewise.
* ast/rust-type.h: Likewise.
* backend/rust-compile-base.cc (HIRCompileBase::resolve_method_address):
Likewise.
* backend/rust-compile-context.h: Likewise.
* backend/rust-compile-expr.cc (CompileExpr::visit): Likewise.
(CompileExpr::generate_closure_function): Likewise.
* backend/rust-compile-extern.h: Likewise.
* backend/rust-compile-implitem.cc (CompileTraitItem::visit): Likewise.
* backend/rust-compile-intrinsic.cc (Intrinsics::compile): Likewise.
* backend/rust-compile-item.cc (CompileItem::visit): Likewise.
* backend/rust-compile-resolve-path.cc (ResolvePathRef::resolve):
Likewise.
(HIRCompileBase::query_compile): Likewise.
* backend/rust-compile-type.cc (TyTyResolveCompile::visit): Likewise.
(TyTyResolveCompile::create_dyn_obj_record): Likewise.
* backend/rust-compile.cc (HIRCompileBase::coerce_to_dyn_object):
Likewise.
* backend/rust-mangle-v0.cc (v0_path): Likewise.
(v0_mangle_item): Likewise.
* checks/errors/borrowck/rust-borrow-checker.cc (BorrowChecker::go):
Likewise.
* checks/errors/privacy/rust-privacy-check.cc (Resolver::resolve):
Likewise.
* checks/errors/rust-const-checker.cc (ConstChecker::ConstChecker):
Likewise.
* checks/errors/rust-unsafe-checker.cc (UnsafeChecker::UnsafeChecker):
Likewise.
* checks/lints/rust-lint-marklive-base.h: Likewise.
* checks/lints/rust-lint-marklive.cc (MarkLive::go): Likewise.
(MarkLive::visit): Likewise.
(MarkLive::visit_path_segment): Likewise.
* checks/lints/rust-lint-marklive.h: Likewise.
* checks/lints/rust-lint-scan-deadcode.h: Likewise.
* expand/rust-macro-expand.cc (MacroExpander::expand_invoc): Likewise.
* expand/rust-macro-expand.h (struct MacroExpander): Change mapping
from pointer to a reference.
* expand/rust-proc-macro.cc (BangProcMacro::BangProcMacro): Replace
pointer accessor with reference accessor.
(AttributeProcMacro::AttributeProcMacro): Likewise.
(CustomDeriveProcMacro::CustomDeriveProcMacro): Likewise.
* hir/rust-ast-lower-base.cc (ASTLoweringBase::lower_lifetime):
Likewise.
(ASTLoweringBase::lower_loop_label): Likewise.
(ASTLoweringBase::lower_path_expr_seg): Likewise.
(ASTLoweringBase::lower_self): Likewise.
(ASTLoweringBase::handle_lang_item_attribute): Likewise.
(ASTLoweringBase::lower_extern_block): Likewise.
(ASTLoweringBase::lower_macro_definition): Likewise.
* hir/rust-ast-lower-base.h: Likewise.
* hir/rust-ast-lower-block.h: Likewise.
* hir/rust-ast-lower-enumitem.h: Likewise.
* hir/rust-ast-lower-expr.cc (ASTLoweringExpr::translate): Likewise.
(ASTLoweringExpr::visit): Likewise.
* hir/rust-ast-lower-extern.h: Likewise.
* hir/rust-ast-lower-implitem.cc (ASTLowerImplItem::translate):
Likewise.
(ASTLowerImplItem::visit): Likewise.
(ASTLowerTraitItem::translate): Likewise.
(ASTLowerTraitItem::visit): Likewise.
* hir/rust-ast-lower-item.cc (ASTLoweringItem::translate): Likewise.
(ASTLoweringItem::visit): Likewise.
(ASTLoweringSimplePath::lower): Likewise.
* hir/rust-ast-lower-pattern.cc (ASTLoweringPattern::translate):
Likewise.
(ASTLoweringPattern::visit): Likewise.
* hir/rust-ast-lower-stmt.cc (ASTLoweringStmt::translate): Likewise.
(ASTLoweringStmt::visit): Likewise.
* hir/rust-ast-lower-struct-field-expr.h: Likewise.
* hir/rust-ast-lower-type.cc (ASTLowerTypePath::visit): Likewise.
(ASTLowerQualifiedPathInType::visit): Likewise.
(ASTLoweringType::translate): Likewise.
(ASTLoweringType::visit): Likewise.
(ASTLowerGenericParam::translate): Likewise.
(ASTLowerGenericParam::visit): Likewise.
(ASTLoweringTypeBounds::translate): Likewise.
(ASTLoweringTypeBounds::visit): Likewise.
(ASTLowerWhereClauseItem::translate): Likewise.
(ASTLowerWhereClauseItem::visit): Likewise.
* hir/rust-ast-lower.cc (ASTLowering::go): Likewise.
(ASTLoweringBlock::visit): Likewise.
(ASTLoweringIfBlock::visit): Likewise.
(ASTLoweringIfLetBlock::visit): Likewise.
(ASTLowerStructExprField::visit): Likewise.
(ASTLoweringExprWithBlock::visit): Likewise.
(ASTLowerPathInExpression::visit): Likewise.
(ASTLoweringBase::lower_qual_path_type): Likewise.
(ASTLowerQualPathInExpression::visit): Likewise.
* metadata/rust-export-metadata.cc (ExportContext::emit_trait):
Likewise.
(ExportContext::emit_function): Likewise.
(ExportContext::emit_macro): Likewise.
(PublicInterface::PublicInterface): Likewise.
(PublicInterface::expected_metadata_filename): Likewise.
* metadata/rust-export-metadata.h: Likewise.
* resolve/rust-ast-resolve-base.h: Likewise.
* resolve/rust-ast-resolve-implitem.h: Likewise.
* resolve/rust-ast-resolve-item.cc (ResolveTraitItems::visit):
Likewise.
(ResolveItem::visit): Likewise.
(ResolveExternItem::visit): Likewise.
* resolve/rust-ast-resolve-path.cc (ResolvePath::resolve_path):
Likewise.
* resolve/rust-ast-resolve-stmt.h: Likewise.
* resolve/rust-ast-resolve-toplevel.h: Likewise.
* resolve/rust-ast-resolve-type.cc (ResolveRelativeTypePath::go):
Likewise.
(ResolveTypeToCanonicalPath::visit): Likewise.
* resolve/rust-ast-resolve-type.h: Likewise.
* resolve/rust-ast-resolve.cc (NameResolution::NameResolution):
Likewise.
(NameResolution::go): Likewise.
* resolve/rust-ast-resolve.h: Likewise.
* resolve/rust-early-name-resolver-2.0.cc (Early::visit_attributes):
Likewise.
* resolve/rust-early-name-resolver.cc (EarlyNameResolver::EarlyNameResolver):
Likewise.
* resolve/rust-late-name-resolver-2.0.cc (next_node_id): Likewise.
(next_hir_id): Likewise.
* resolve/rust-name-resolution-context.cc (NameResolutionContext::NameResolutionContext):
Likewise.
* resolve/rust-name-resolver.cc (Resolver::Resolver): Likewise.
(Resolver::generate_builtins): Likewise.
(Resolver::setup_builtin): Likewise.
* resolve/rust-name-resolver.h: Likewise.
* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit):
Likewise.
(TopLevel::handle_use_glob): Likewise.
* rust-session-manager.cc (Session::get_instance): Likewise.
(Session::handle_input_files): Likewise.
(Session::handle_crate_name): Likewise.
(Session::compile_crate): Likewise.
(Session::load_extern_crate): Likewise.
* rust-session-manager.h: Likewise.
* typecheck/rust-autoderef.cc (Adjuster::try_unsize_type): Likewise.
* typecheck/rust-coercion.cc (TypeCoercionRules::do_coercion):
Likewise.
(TypeCoercionRules::coerce_unsafe_ptr): Likewise.
(TypeCoercionRules::coerce_borrowed_pointer): Likewise.
(TypeCoercionRules::coerce_unsized): Likewise.
* typecheck/rust-coercion.h: Likewise.
* typecheck/rust-hir-dot-operator.cc (MethodResolver::select):
Likewise.
* typecheck/rust-hir-inherent-impl-overlap.h: Likewise.
* typecheck/rust-hir-path-probe.cc (PathProbeType::process_enum_item_for_candiates):
Likewise.
(PathProbeType::process_impl_items_for_candidates): Likewise.
(PathProbeImplTrait::process_trait_impl_items_for_candidates):
Likewise.
* typecheck/rust-hir-trait-resolve.cc (TraitResolver::resolve_path_to_trait):
Likewise.
(TraitItemReference::get_parent_trait_mappings): Likewise.
* typecheck/rust-hir-type-check-base.cc (TypeCheckBase::resolve_literal):
Likewise.
(TypeCheckBase::get_marker_predicate): Likewise.
* typecheck/rust-hir-type-check-base.h: Likewise.
* typecheck/rust-hir-type-check-enumitem.cc (TypeCheckEnumItem::visit):
Likewise.
* typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit):
Likewise.
(TypeCheckExpr::resolve_operator_overload): Likewise.
(TypeCheckExpr::resolve_fn_trait_call): Likewise.
* typecheck/rust-hir-type-check-implitem.cc (TypeCheckTopLevelExternItem::visit):
Likewise.
(TypeCheckImplItem::visit): Likewise.
* typecheck/rust-hir-type-check-item.cc (TypeCheckItem::visit):
Likewise.
* typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::resolve_root_path):
Likewise.
(TypeCheckExpr::resolve_segments): Likewise.
* typecheck/rust-hir-type-check-pattern.cc (TypeCheckPattern::emit_pattern_size_error):
Likewise.
(ClosureParamInfer::Resolve): Likewise.
* typecheck/rust-hir-type-check-struct.cc (TypeCheckStructExpr::resolve):
Likewise.
* typecheck/rust-hir-type-check-type.cc (TypeCheckType::visit): Likewise.
(TypeCheckType::resolve_root_path): Likewise.
(TypeResolveGenericParam::visit): Likewise.
(ResolveWhereClauseItem::visit): Likewise.
* typecheck/rust-hir-type-check.cc (TraitItemReference::get_type_from_fn):
Likewise.
* typecheck/rust-type-util.cc (query_type): Likewise.
* typecheck/rust-typecheck-context.cc (TypeCheckContext::compute_inference_variables):
Likewise.
* typecheck/rust-tyty-bounds.cc (TypeBoundsProbe::scan): Likewise.
(TypeBoundsProbe::assemble_builtin_candidate): Likewise.
(TypeCheckBase::get_predicate_from_bound): Likewise.
* typecheck/rust-tyty-call.cc (TypeCheckCallExpr::visit): Likewise.
(TypeCheckMethodCallExpr::check): Likewise.
* typecheck/rust-tyty-call.h: Likewise.
* typecheck/rust-tyty-cmp.h: Likewise.
* typecheck/rust-tyty-subst.cc (SubstitutionParamMapping::override_context):
Likewise.
(SubstitutionRef::monomorphize): Likewise.
* typecheck/rust-tyty-util.cc (TyVar::get_implicit_infer_var):
Likewise.
(TyVar::monomorphized_clone): Likewise.
(TyWithLocation::TyWithLocation): Likewise.
* typecheck/rust-tyty.cc (BaseType::satisfies_bound): Likewise.
(InferType::clone): Likewise.
(ADTType::handle_substitions): Likewise.
(TupleType::handle_substitions): Likewise.
(FnType::handle_substitions): Likewise.
(ClosureType::setup_fn_once_output): Likewise.
(ArrayType::handle_substitions): Likewise.
(SliceType::handle_substitions): Likewise.
(ReferenceType::handle_substitions): Likewise.
(PointerType::handle_substitions): Likewise.
(ParamType::handle_substitions): Likewise.
* typecheck/rust-tyty.h: Likewise.
* typecheck/rust-unify.cc (UnifyRules::UnifyRules): Likewise.
(UnifyRules::commit): Likewise.
* util/rust-hir-map.cc: Change getter return type to a reference.
* util/rust-hir-map.h: Update function's prototype.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Remove unnecessary SIDE_EFFECTS/READONLY macros

Closes #2357

gcc/rust/ChangeLog:

* rust-gcc.cc: remove unnecessary TREE_SIDE_EFFECTS and TREE_READONLY
macros used in arithmetic overflow checks.

Signed-off-by: Mael Cravero <mael.cravero@embecosm.com>

borrowck: Use std::ignore

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-builder-expr-stmt.cc
(ExprStmtBuilder::visit): Use std::ignore.

borrowck: Testsuite

gcc/testsuite/ChangeLog:

* rust/borrowck/borrowck.exp: New test.
* rust/borrowck/position_dependant_outlives.rs: New test.
* rust/borrowck/reference.rs: New test.
* rust/borrowck/return_ref_to_local.rs: New test.
* rust/borrowck/subset.rs: New test.
* rust/borrowck/test_move.rs: New test.
* rust/borrowck/test_move_behind_reference.rs: New test.
* rust/borrowck/test_move_conditional.rs: New test.
* rust/borrowck/tmp.rs: New test.
* rust/borrowck/use_while_mut.rs: New test.
* rust/borrowck/use_while_mut_fr.rs: New test.
* rust/borrowck/well_formed_function_inputs.rs: New test.

borrowck: Polonius error reporting

gcc/rust/ChangeLog:

* checks/errors/borrowck/ffi-polonius/src/gccrs_ffi_generated.rs: Error reporting.
* checks/errors/borrowck/ffi-polonius/src/lib.rs: Error reporting.
* checks/errors/borrowck/polonius/rust-polonius-ffi.h (struct FactsView):
Error reporting.
(struct Output): Error reporting.
* checks/errors/borrowck/polonius/rust-polonius.h (struct Facts): Error reporting.
* checks/errors/borrowck/rust-borrow-checker.cc: Error reporting.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Link Polonius and run it

gcc/rust/ChangeLog:

* Make-lang.in: Link Polonius.
* checks/errors/borrowck/rust-borrow-checker.cc: Run Polonius.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Build Polonius automatically

This is minimalistic version to build Polonius with Cargo.

gcc/rust/ChangeLog:

* Make-lang.in: Build Polonius.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Polonius dump

gcc/rust/ChangeLog:

* checks/errors/borrowck/polonius/rust-polonius.h (struct FullPoint):
Polonius facts dump.
(struct Facts): Polonius facts dump.
* checks/errors/borrowck/rust-bir-dump.cc (Dump::go):
Polonius facts dump.
(Dump::visit): Polonius facts dump.
(Dump::visit_place): Polonius facts dump.
(Dump::visit_move_place): Polonius facts dump.
(Dump::visit_scope): Polonius facts dump.
* checks/errors/borrowck/rust-borrow-checker.cc (BorrowChecker::go): Polonius facts dump.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

Removed obsolete objects

gcc/rust/ChangeLog:

* backend/rust-compile-expr.cc (CompileExpr::visit): Lines
removed as the objects are unused.

Signed-off-by: Kushal Pal <kushalpal109@gmail.com>

Pin macos CI to version 13

Latest macos environment runs on arm and is thus
incompatible with gcc.

ChangeLog:

* .github/workflows/ccpp.yml: Pin macos runner
version.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Remove redundant macro definition

gcc/rust/ChangeLog:
* backend/rust-tree.h: removing the CLASSTYPE_VBASECLASSES macro
which is duplicated three times.

Signed-off-by: Zhang He <zhanghe9702@163.com>

Add a test for inherent impl type name resolve

A previous bug with name resolution 2.0 was caused by an incorrectly
resolved inherent impl name. This test shall highlight the behavior
and prevent regression.

gcc/testsuite/ChangeLog:

* rust/compile/name_resolution25.rs: New test.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Visit type during resolution of inherent impl

Inherent impl has a type it applies to. This type
was not visited and thus not resolved.

gcc/rust/ChangeLog:

* resolve/rust-default-resolver.cc (DefaultResolver::visit): Visit
inherent impl type.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Rust: Move 'libformat_parser' build into libgrust

Addresses #2883.

contrib/
* gcc_update (files_and_dependencies): Update for
'libformat_parser' in libgrust.
gcc/rust/
* Make-lang.in (LIBFORMAT_PARSER): Point to 'libformat_parser'
build in libgrust.
(%.toml:, $(LIBFORMAT_PARSER):): Remove.
libgrust/
* libformat_parser/Makefile.am: New.
* Makefile.am [!TARGET_LIBRARY] (SUBDIRS): Add 'libformat_parser'.
* configure.ac: Handle it.
(TARGET_LIBRARY): New 'AM_CONDITIONAL'.
* libformat_parser/Makefile.in: Generate.
* Makefile.in: Regenerate.
* configure: Likewise.

Rust: Move 'libformat_parser' build into the GCC build directory

Fixes #2883.

* .gitignore: Remove 'libgrust/*/target/'.
gcc/rust/
* Make-lang.in (LIBFORMAT_PARSER): Point to the GCC build
directory.
* ($(LIBFORMAT_PARSER)): Build in the GCC build directory.

Rust: Don't cache 'libformat_parser.a'

gcc/rust/
* Make-lang.in (LIBFORMAT_PARSER): Point to the actual build artifact.
($(LIBFORMAT_PARSER)): Don't cache it.

Inline 'gcc/rust/Make-lang.in:RUST_LIBDEPS'

gcc/rust/
* Make-lang.in (RUST_LIBDEPS): Inline into all users.

Add 'gcc/rust/Make-lang.in:LIBFORMAT_PARSER'

... to avoid verbatim repetition.

gcc/rust/
* Make-lang.in (LIBPROC_MACRO_INTERNAL): New.
(RUST_LIBDEPS, crab1$(exeext), rust/libformat_parser.a): Use it.

Add 'gcc/rust/Make-lang.in:LIBPROC_MACRO_INTERNAL'

... to avoid verbatim repetition.

gcc/rust/
* Make-lang.in (LIBPROC_MACRO_INTERNAL): New.
(RUST_LIBDEPS, crab1$(exeext)): Use it.

Inline 'gcc/rust/Make-lang.in:RUST_LDFLAGS'

Unused.

gcc/rust/
* Make-lang.in (RUST_LDFLAGS): Inline into all users.

Remove 'libgrust/libproc_macro_internal' from 'gcc/rust/Make-lang.in:RUST_LDFLAGS'

This isn't necessary, as the full path to 'libproc_macro_internal.a' is
specified.

gcc/rust/
* Make-lang.in (RUST_LDFLAGS): Remove
'libgrust/libproc_macro_internal'.

Remove 'libgrust/librustc_format_parser' from 'gcc/rust/Make-lang.in:RUST_LDFLAGS'

That directory doesn't even exist.

gcc/rust/
* Make-lang.in (RUST_LDFLAGS): Remove
'libgrust/librustc_format_parser'.

chore: Fix Remark CI

ChangeLog:

* CONTRIBUTING.md: Fix invalid line length.
* README.md: Likewise.

rust: Add --offline flag to cargo when building Rust components.

gcc/rust/ChangeLog:

* Make-lang.in: Add --offline flag to cargo invocation.

libgrust: Vendor Rust dependencies

This commits vendors and locks our dependencies so that our Rust components
do not need internet access to be built anymore. Tested in a docker container
with no network access.

We can think about merging the vendor directory once we have more than one
Rust component, e.g. when we add polonius to the mix.

libgrust/ChangeLog:

* libformat_parser/.cargo/config: New file.
* libformat_parser/vendor.NOTES: New file.
* libformat_parser/vendor/libc/.cargo-checksum.json: New file.
* libformat_parser/vendor/libc/CONTRIBUTING.md: New file.
* libformat_parser/vendor/libc/Cargo.toml: New file.
* libformat_parser/vendor/libc/LICENSE-APACHE: New file.
* libformat_parser/vendor/libc/LICENSE-MIT: New file.
* libformat_parser/vendor/libc/README.md: New file.
* libformat_parser/vendor/libc/build.rs: New file.
* libformat_parser/vendor/libc/rustfmt.toml: New file.
* libformat_parser/vendor/libc/src/fixed_width_ints.rs: New file.
* libformat_parser/vendor/libc/src/fuchsia/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/fuchsia/align.rs: New file.
* libformat_parser/vendor/libc/src/fuchsia/mod.rs: New file.
* libformat_parser/vendor/libc/src/fuchsia/no_align.rs: New file.
* libformat_parser/vendor/libc/src/fuchsia/riscv64.rs: New file.
* libformat_parser/vendor/libc/src/fuchsia/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/hermit/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/hermit/mod.rs: New file.
* libformat_parser/vendor/libc/src/hermit/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/lib.rs: New file.
* libformat_parser/vendor/libc/src/macros.rs: New file.
* libformat_parser/vendor/libc/src/psp.rs: New file.
* libformat_parser/vendor/libc/src/sgx.rs: New file.
* libformat_parser/vendor/libc/src/solid/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/solid/arm.rs: New file.
* libformat_parser/vendor/libc/src/solid/mod.rs: New file.
* libformat_parser/vendor/libc/src/switch.rs: New file.
* libformat_parser/vendor/libc/src/teeos/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/aix/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/aix/powerpc64.rs: New file.
* libformat_parser/vendor/libc/src/unix/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b32/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b32/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b64/aarch64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b64/aarch64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b64/x86_64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/b64/x86_64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/long_array.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/apple/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/dragonfly/errno.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/dragonfly/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/arm.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd11/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd12/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd12/x86_64.rs:
New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd13/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd13/x86_64.rs:
New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd14/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd14/x86_64.rs:
New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd15/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd15/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/freebsd15/x86_64.rs:
New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/powerpc.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/powerpc64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/riscv64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/x86.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/x86_64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/freebsd/x86_64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/freebsdlike/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/arm.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/mips.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/powerpc.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/riscv64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/sparc64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/x86.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/netbsd/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/arm.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/mips64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/powerpc.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/powerpc64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/riscv64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/sparc64.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/x86.rs: New file.
* libformat_parser/vendor/libc/src/unix/bsd/netbsdlike/openbsd/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/unix/haiku/b32.rs: New file.
* libformat_parser/vendor/libc/src/unix/haiku/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/haiku/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/haiku/native.rs: New file.
* libformat_parser/vendor/libc/src/unix/haiku/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/unix/hurd/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/hurd/b32.rs: New file.
* libformat_parser/vendor/libc/src/unix/hurd/b64.rs: New file.
* libformat_parser/vendor/libc/src/unix/hurd/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/hurd/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b32/arm.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b32/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b32/x86/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b32/x86/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/aarch64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/aarch64/int128.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/aarch64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/riscv64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/riscv64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/x86_64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/b64/x86_64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/android/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/emscripten/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/emscripten/lfs64.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/emscripten/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/emscripten/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/arch/generic/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/arch/mips/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/arch/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/arch/powerpc/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/arch/sparc/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/arm/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/arm/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/csky/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/csky/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/m68k/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/m68k/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/mips/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/mips/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/powerpc.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/riscv32/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/riscv32/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/sparc/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/x86/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b32/x86/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/aarch64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/aarch64/fallback.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/aarch64/ilp32.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/aarch64/int128.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/aarch64/lp64.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/aarch64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/mips64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/mips64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/powerpc64/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/powerpc64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/riscv64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/riscv64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/s390x.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/sparc64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/sparc64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/x86_64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/x86_64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/x86_64/not_x32.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/b64/x86_64/x32.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/gnu/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/arm/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/arm/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/hexagon.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/mips/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/mips/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/powerpc.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/riscv32/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/x86/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b32/x86/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/aarch64/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/aarch64/int128.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/mips64.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/powerpc64.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/s390x.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/x86_64/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/lfs64.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/musl/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/non_exhaustive.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/arm/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/arm/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/arm/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mips32/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mips32/mod.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mips32/no_align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mips64/align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mips64/mod.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mips64/no_align.rs:
New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mips/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/x86_64/l4re.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/x86_64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/linux/uclibc/x86_64/other.rs: New file.
* libformat_parser/vendor/libc/src/unix/linux_like/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/aarch64/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/align.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/arm/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/espidf/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/generic.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/horizon/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/powerpc/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/newlib/vita/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/no_align.rs: New file.
* libformat_parser/vendor/libc/src/unix/nto/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/unix/nto/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/nto/neutrino.rs: New file.
* libformat_parser/vendor/libc/src/unix/nto/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/unix/redox/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/compat.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/illumos.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/mod.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/solaris.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/x86.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/unix/solarish/x86_common.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/aarch64.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/arm.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/mod.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/powerpc.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/powerpc64.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/x86.rs: New file.
* libformat_parser/vendor/libc/src/vxworks/x86_64.rs: New file.
* libformat_parser/vendor/libc/src/wasi.rs: New file.
* libformat_parser/vendor/libc/src/windows/gnu/align.rs: New file.
* libformat_parser/vendor/libc/src/windows/gnu/mod.rs: New file.
* libformat_parser/vendor/libc/src/windows/mod.rs: New file.
* libformat_parser/vendor/libc/src/windows/msvc/mod.rs: New file.
* libformat_parser/vendor/libc/src/xous.rs: New file.
* libformat_parser/vendor/libc/tests/const_fn.rs: New file.
* libformat_parser/vendor/unicode-xid/.cargo-checksum.json: New file.
* libformat_parser/vendor/unicode-xid/COPYRIGHT: New file.
* libformat_parser/vendor/unicode-xid/Cargo.toml: New file.
* libformat_parser/vendor/unicode-xid/LICENSE-APACHE: New file.
* libformat_parser/vendor/unicode-xid/LICENSE-MIT: New file.
* libformat_parser/vendor/unicode-xid/README.md: New file.
* libformat_parser/vendor/unicode-xid/benches/xid.rs: New file.
* libformat_parser/vendor/unicode-xid/src/lib.rs: New file.
* libformat_parser/vendor/unicode-xid/src/tables.rs: New file.
* libformat_parser/vendor/unicode-xid/src/tests.rs: New file.
* libformat_parser/vendor/unicode-xid/tests/exhaustive_tests.rs: New file.

Merge commit '013b520529d5f1bddec27dd921eab5e917663693' into HEAD [#2944]

This resolves #2802 "Merge gcc/trunk into us".

Adjust '.github/bors_log_expected_warnings'

Merge commit 'f5a805d82902fe2d6e0a7af8c0e6519f9d25a8f3' into HEAD

Merge commit '767698ff6c8f07047ad90bef89f3dc4c4515f0df' into HEAD

Merge commit '8534cc772def8142379c0e72ab6392d40f3f60f6^' into HEAD

Merge commit 'f0b1cf01782ba975cfda32800c91076df78058d6' into HEAD [#2857]

Merge commit 'f0b1cf01782ba975cfda32800c91076df78058d6^' into HEAD

Merge commit 'af3f0482367232d2d655e51bee382e98ddbfb117' into HEAD

Merge commit 'f89186f962421f6d972035fc4b4c20490e7b1c5b^' into HEAD

Merge commit '2a9881565c7b48d04cf891666a66a1a2e560bce8' into HEAD

Merge commit 'ceed844b5284aeabbdfe25ccf099e7ebeeb14a9b^' into HEAD

Merge commit '2341df1cb9b3681bfefe29207887b2b3dc271a95' into HEAD [#2801]

Merge commit '2341df1cb9b3681bfefe29207887b2b3dc271a95^' into HEAD

Merge commit 'e621b174d7c622aa4b677a4c812e5061e311cc5c' into HEAD

Merge commit 'a5258f3a11ab577835ef5e93be5cb65ec9e44132^' into HEAD

Merge commit '4bd09ce06f50d266c992c984cc993384d5e6655e' into HEAD

Merge commit '7a6906c8d80e437a97c780370a8fec4e00561c7b' into HEAD [#2288]

Merge commit 'fc59a3995cb46c190c0efb0431ad204e399975c4' into HEAD [#2183]

Merge commit 'fc59a3995cb46c190c0efb0431ad204e399975c4^' into HEAD

Fix grammar as pointed out by Marc

ChangeLog:

* README.md (gccrs-workspace]): like-wise.

Add an alternative solution on MacOS

For #2937.
ChangeLog:

* README.md (gccrs-workspace]): like-wise.

borrowck: Bump copyright notice

gcc/rust/ChangeLog:

* checks/errors/borrowck/ffi-polonius/src/gccrs_ffi.rs: Bump copyright.
* checks/errors/borrowck/ffi-polonius/src/lib.rs: Bump copyright.
* checks/errors/borrowck/polonius/rust-polonius-ffi.h: Bump copyright.
* checks/errors/borrowck/polonius/rust-polonius.h: Bump copyright.
* checks/errors/borrowck/rust-bir-dump.cc: Bump copyright.
* checks/errors/borrowck/rust-bir-fact-collector.h: Bump copyright.
* checks/errors/borrowck/rust-bir-free-region.h: Bump copyright.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Remove block braces to satisfy GNU style

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-dump.cc (renumber_places):
Remove unecessary braces.
(Dump::go): Remove unecessary braces.
(Dump::visit): Remove unecessary braces.
(Dump::visit_scope): Remove unecessary braces.
* checks/errors/borrowck/rust-bir-fact-collector.h (class FactCollector):
Remove unecessary braces.
(points): Remove unecessary braces.
* checks/errors/borrowck/rust-bir-free-region.h: Remove unecessary braces.
* checks/errors/borrowck/rust-bir-place.h: Remove unecessary braces.
* checks/errors/borrowck/rust-borrow-checker.cc (BorrowChecker::go):
Remove unecessary braces.
* checks/errors/borrowck/rust-function-collector.h: Remove unecessary braces.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Fact collector

This is the main Polonius based logic which creates the information
Polonius needs from BIR. It is largly guessed and rever engineered, so
some aspects are probably wrong.

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-fact-collector.h: New file.
* checks/errors/borrowck/rust-borrow-checker.cc (BorrowChecker::go):
Enable fact collection.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Regions in BIR

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-place.h (struct Lifetime):
Extended regions and loans.
(struct Loan): Representation of loan (result of borrowing)
* checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::visit):
Fix let stmt handling.
* checks/errors/borrowck/rust-bir-builder-pattern.h: improved
pattern translation
* checks/errors/borrowck/rust-bir-builder-internal.h: region binding
* checks/errors/borrowck/rust-bir-builder-expr-stmt.h (class ExprStmtBuilder):
Region support.
(class RenumberCtx): Region support.
* checks/errors/borrowck/rust-bir-builder.h (class Builder): Region support.
* checks/errors/borrowck/rust-bir-dump.cc (get_lifetime_name): Region support.
(renumber_places): Region support.
(Dump::go): Region support.
(Dump::visit): Region support.
(Dump::visit_lifetime): Region support.
(Dump::visit_scope): Region support.
* checks/errors/borrowck/rust-bir.h (class AbstractExpr): Region support.
(struct Function): Region support.
(class BorrowExpr): Region support.
(class CallExpr): Region support.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: extract regions from types using VA

Biggybag on variance analysis to extract regions of fields from ADT
regions.

gcc/rust/ChangeLog:

* typecheck/rust-tyty-variance-analysis-private.h (class FieldVisitorCtx):
Region extraction.
* typecheck/rust-tyty-variance-analysis.cc (query_field_regions): Region extraction.
(FieldVisitorCtx::collect_regions): Region extraction.
(FieldVisitorCtx::add_constraints_from_ty): Region extraction.
(FieldVisitorCtx::add_constraints_from_region): Region
extraction.
(FieldVisitorCtx::add_constrints_from_param): Region extraction.
* typecheck/rust-tyty-variance-analysis.h (query_field_regions):
Region extraction.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Free region representation

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-free-region.h: New file.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Polonius FFI

Rust part is not build and not invoked at this point.

gcc/rust/ChangeLog:

* checks/errors/borrowck/ffi-polonius/Cargo.toml: New file.
* checks/errors/borrowck/ffi-polonius/src/gccrs_ffi.rs: New file.
* checks/errors/borrowck/ffi-polonius/src/gccrs_ffi_generated.rs: New file.
* checks/errors/borrowck/ffi-polonius/src/lib.rs: New file.
* checks/errors/borrowck/polonius/rust-polonius-ffi.h: New file.
* checks/errors/borrowck/polonius/rust-polonius.h: New file.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: BIR: make BIR visitor const

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-dump.cc (Dump::visit): const
visitor
* checks/errors/borrowck/rust-bir-dump.h: const visitor
* checks/errors/borrowck/rust-bir-visitor.h: const visitor
* checks/errors/borrowck/rust-bir.h: const getter

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: BIR: emit moves

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::visit): Emit moves.
* checks/errors/borrowck/rust-bir-builder-internal.h: Emit moves.
* checks/errors/borrowck/rust-bir-builder-lazyboolexpr.h: Emit moves.
* checks/errors/borrowck/rust-bir-dump.cc (Dump::visit_move_place): Emit moves.
(Dump::visit): Emit moves.
* checks/errors/borrowck/rust-bir-place.h (struct Place): Emit moves.
* checks/errors/borrowck/rust-bir-visitor.h: Emit moves.
* checks/errors/borrowck/rust-bir.h (enum class): Emit moves.
(class AbstractExpr): Emit moves.
(BasicBlock::is_terminated): Emit moves.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: BIR: scope handling

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::setup_loop):
Loop handling.
(ExprStmtBuilder::visit): Handle scopes.
* checks/errors/borrowck/rust-bir-builder-internal.h (struct BuilderContext):
Handle scopes.
* checks/errors/borrowck/rust-bir-dump.cc (Dump::go): Dump scopes.
(Dump::visit): Add scopes dump.
(Dump::indent): Add indentation logic.
(Dump::visit_scope): Dump scope.
* checks/errors/borrowck/rust-bir-dump.h: Dump methods.
* checks/errors/borrowck/rust-bir-place.h (std::numeric_limits::max): Scope constants.
(struct Scope): Scope representation.
(class PlaceDB): Scope tracking.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: BIR: Place tree traverse API

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-place.h:
Create place tree traverse API.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: BIR: use callable API

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::visit):
Use callable API

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Unify BIR terminilogy (node->statement)

gcc/rust/ChangeLog:

* checks/errors/borrowck/bir-design-notes.md (nodes): Rename node to statement.
(Nodes): Rename node to statement.
* checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::visit):
Rename node to statement.
* checks/errors/borrowck/rust-bir-builder-internal.h: Rename node to statement.
* checks/errors/borrowck/rust-bir-builder.h: Rename node to statement.
* checks/errors/borrowck/rust-bir-dump.cc (Dump::go): Rename node to statement.
(Dump::visit): Rename node to statement.
* checks/errors/borrowck/rust-bir-dump.h (class Dump): Rename node to statement.
* checks/errors/borrowck/rust-bir-visitor.h (class Node): Rename node to statement.
(class Statement): Rename node to statement.
* checks/errors/borrowck/rust-bir.h (class Node): Rename node to statement.
(class Statement): Rename node to statement.
(class AbstractExpr): Rename node to statement.
(struct Function): Rename node to statement.
(struct BasicBlock): Rename node to statement.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

borrowck: Use rust-system.h

Replace direct usage of system headers.

gcc/rust/ChangeLog:

* checks/errors/borrowck/rust-bir-dump.cc: Use rust-system.h
* checks/errors/borrowck/rust-bir-dump.h (RUST_BIR_DUMP_H): Use rust-system.h
* checks/errors/borrowck/rust-bir-place.h (RUST_BIR_PLACE_H): Use rust-system.h
* checks/errors/borrowck/rust-function-collector.h: Use rust-system.h
* rust-system.h: Use rust-system.h
* typecheck/rust-hir-type-check.h: Use rust-system.h
* typecheck/rust-tyty-subst.cc: Use rust-system.h
* typecheck/rust-tyty-subst.h: Use rust-system.h
* typecheck/rust-tyty.h: Use rust-system.h

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

unify: Always coerce `!` to the target type.

Never can... never... exist, so it should always be coerced to the type
it is being matched against. This is useful for breaking off of a loop
from inside a match, or an if condition, for example.

gcc/rust/ChangeLog:

* typecheck/rust-unify.cc (UnifyRules::go): Always unify to `ltype` if
we are matching against a `Never` in `rtype`.
(UnifyRules::expect_never): Always unify to the expected type.

gcc/testsuite/ChangeLog:

* rust/compile/match-never-ltype.rs: New test.
* rust/compile/match-never-rtype.rs: New test.

raw-strings: Remove dg-excess-error directive

The error is actually expected and uses the correct location.

gcc/testsuite/ChangeLog:

* rust/compile/raw-byte-string-loc.rs: Use dg-error instead of
dg-excess-error.
* rust/compile/raw-string-loc.rs: Likewise.

Improve parsing of raw string literals

gcc/rust/ChangeLog:

* lex/rust-lex.cc
(Lexer::parse_raw_string):
Bring handling of edge cases to par with parse_raw_byte_string.

gcc/testsuite/ChangeLog:

* rust/compile/raw-string-loc.rs: New test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Avoid parsing const unsafe/extern functions as async

gcc/rust/ChangeLog:

* parse/rust-parse-impl.h
(Parser::parse_vis_item):
Call parse_function instead of parse_async_item when finding
UNSAFE or EXTERN_KW during lookahead.

gcc/testsuite/ChangeLog:

* rust/compile/func-const-unsafe.rs: New test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Recognize unstable as a builtin attribute

gcc/rust/ChangeLog:

* util/rust-attribute-values.h
(Attributes::UNSTABLE): New.
* util/rust-attributes.cc
(__definitions): Add Attributes::UNSTABLE.

gcc/testsuite/ChangeLog:

* rust/compile/unstable-fn.rs: New test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Recognize rustc_deprecated as a builtin attribute

gcc/rust/ChangeLog:

* util/rust-attribute-values.h
(Attributes::RUSTC_DEPRECATED): New.
* util/rust-attributes.cc
(__definitions): Add Attributes::RUSTC_DEPRECATED.

gcc/testsuite/ChangeLog:

* rust/compile/deprecated-fn.rs: New test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Improve parsing of raw byte string literals

gcc/rust/ChangeLog:

* lex/rust-lex.cc
(Lexer::parse_raw_byte_string):
Bring handling of edge cases to par with parse_byte_string.

gcc/testsuite/ChangeLog:

* rust/compile/raw-byte-string-loc.rs: New test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Change dfs function return type to support gcc 4.8

GCC 4.8 does not handle pair with references correctly. We need to use a
properly typed struct instead.

gcc/rust/ChangeLog:

* resolve/rust-forever-stack.h: Change dfs function prototype and
declare dfs return type structure.
* resolve/rust-forever-stack.hxx: Adapt dfs function to the new return
type.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add globbing name resolution 2.0 test

Add a few test for globbing to highlight function call ambiguities.

gcc/testsuite/ChangeLog:

* rust/compile/name_resolution23.rs: New test.
* rust/compile/name_resolution24.rs: New test.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

nr2.0: Add new test cases.

gcc/testsuite/ChangeLog:

* rust/compile/name_resolution13.rs: Add new module and remove compile
step.
* rust/compile/name_resolution14.rs: New test.
* rust/compile/name_resolution15.rs: New test.
* rust/compile/name_resolution16.rs: New test.
* rust/compile/name_resolution17.rs: New test.
* rust/compile/name_resolution18.rs: New test.
* rust/compile/name_resolution19.rs: New test.
* rust/compile/name_resolution20.rs: New test.
* rust/compile/name_resolution21.rs: New test.

compile: resolve-path-ref: properly resolve nodeId with nr2.0

gcc/rust/ChangeLog:

* backend/rust-compile-resolve-path.cc: Attempt to resolve names
also using new name resolution context.
* backend/rust-compile-resolve-path.h: Add new declaration.

Fix use rebind name resolution.

Name resolution for rebind were missing.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::handle_use_glob):
Change function prototype to use a reference instead.
(TopLevel::handle_use_dec): Likewise.
(TopLevel::handle_rebind): Add name resolution on rebind use
declarations.
(flatten_rebind): Change prototype to accept a pair of path/alias.
(flatten_list): Adapt call to flatten_rebind.
(flatten): Adapt call to flatten_rebind.
(flatten_glob): Remove unused part.
(TopLevel::visit): Add rebind resolution.
* resolve/rust-toplevel-name-resolver-2.0.h: Adapt function prototypes.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add mappings for struct base and struct fields

Definition/usage mapping during name resolution was missing.

gcc/rust/ChangeLog:

* resolve/rust-late-name-resolver-2.0.cc (Late::visit): Add mapping
implementation.
* resolve/rust-late-name-resolver-2.0.h: Add function visitor prototype
override.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Fix quoted string format

This format dialog triggered a warning.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::handle_use_dec):
Replace the string format %<%s%> with the proper %qs format.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Prevent getting immutable context with classic nr

Immutable name resolution context is not initialized when the classic
name resolution is in use. It can therefore not be used, the getter would
error out.

gcc/rust/ChangeLog:

* typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::resolve_root_path):
Only get immutable name resolution context when name resolution 2.0 is
used.
* typecheck/rust-hir-type-check-type.cc (TypeCheckType::resolve_root_path):
Likewise.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Update assignment operator with cratenum

Crate number was not assigned with the other fields in the assignment
operator overload of a CannonicalPath.

gcc/rust/ChangeLog:

* util/rust-canonical-path.h: Also assign crate number.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Reinject Self parameter in new resolver

The old resolver injected a Self generic parameter in order to help the
trait solver. This is clearly sketchy at best and should be fixed in
the future.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Add
Self generic parameter injection and a warning.
* resolve/rust-toplevel-name-resolver-2.0.h: Add function prototype.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Use new name resolver to compile constant items

Constant items were handled only by the old resolver, this lead to an
ICE when using the new resolver on some rust code containing a constant
item as the new and the old resolver cannot be used at the same time.

gcc/rust/ChangeLog:

* backend/rust-compile-item.cc (CompileItem::visit): Check the resolver
flag and use the new one when required.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Remove unsafe block empty visit function

We need to visit subcomponents in unsafe elements, this means we can
leverage the default ast visitor's code instead of duplicating it.

gcc/rust/ChangeLog:

* resolve/rust-default-resolver.cc (DefaultResolver::visit): Remove
empty visit function.
* resolve/rust-default-resolver.h: Remove function prototype.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Remove extern block scoping

Remove extern block scoping visit function, use the default visitor visit
function instead. We do not need scoping for extern block as their
element shall be visible from the extern block scope.

gcc/rust/ChangeLog:

* resolve/rust-default-resolver.cc (DefaultResolver::visit): Remove
visitor implementation and scoping.
* resolve/rust-default-resolver.h: Remove function prototype.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add constant identifiers to the value namespace

Constants could not be resolved without their identifier in the right
scope.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Add
constant identifiers to the resolver.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Struct are types, not values

We shall search in the right namespace. The correct namespace for struct
is type namespace.

gcc/rust/ChangeLog:

* typecheck/rust-hir-type-check-item.cc (TypeCheckItem::visit): Change
search location for struct types.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Change enum namespace from value to type

The enum type shall be in type namespace, not value namespace.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (GlobbingVisitor::visit):
Change enum type namespace.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add tuple struct to the type namespace

Only tuple struct constructor was added to the resolver.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (GlobbingVisitor::visit):
Add tuple struct type to the resolver's context.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Unit struct constructor shall be resolved

Unit struct have a special constructor that should be added to the struct
namespace in order to be resolved later when called. As it is a function
it should be added in the value namespace.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (GlobbingVisitor::visit):
Add the struct constructor when the struct is a unit.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Values shall be inserted in the value namespace

Values were inserted in the label namespace instead of the value
namespace this lead to several bugs.

gcc/rust/ChangeLog:

* resolve/rust-late-name-resolver-2.0.cc (Late::visit): Change the
namespace for values from "label" to "values".

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Raw pointer type visitor didn't require overload

This overload did not dispatch the visitor to sub members of a raw
pointer like the default one. It is therefore useless as pointed type
shall be visited to be resolved correctly.

gcc/rust/ChangeLog:

* resolve/rust-default-resolver.cc (DefaultResolver::visit): Remove
function implementation.
* resolve/rust-default-resolver.h: Remove function prototype.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Visit constant item type in default resolver

The type of constant item expression was not properly visited in the
default resolver.

gcc/rust/ChangeLog:

* resolve/rust-default-resolver.cc (DefaultResolver::visit): Visit
constant item's types.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Visit function return type in default resolver

Function return type was not properly visited in the default resolver
visitor pattern.

gcc/rust/ChangeLog:

* resolve/rust-default-resolver.cc (DefaultResolver::visit): Visit
function return type.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Change error message to match test

Error message did not match the test from the previous name resolver when
a given path cannot be resolved.

gcc/rust/ChangeLog:

* typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::resolve_root_path):
Change error message to match old resolver and test case.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add tuple struct constructor to value namespace

A tuple struct constructor should be inserted in the value namespace
during name resolution in order to reject multiple definitions of the
function.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Add
the struct constructor to the value namespace.

gcc/testsuite/ChangeLog:

* rust/compile/name_resolution22.rs: New test.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add support for ambiguous use declarations

Glob use declarations may lead to ambiguous situation where two
definitions with the same name are imported in a given scope. The
compiler now handles shadowable items inserted after non shadowable
items. An error is now thrown when multiple shadowable items are imported
and used in the same rib.

gcc/rust/ChangeLog:

* resolve/rust-early-name-resolver-2.0.cc (Early::visit): Adapt
resolved type to the new API.
(Early::visit_attributes): Retrieve the node id from the definition.
* resolve/rust-forever-stack.h: Change the return type of getter
functions. Those functions now return a definition type instead of a
node id.
* resolve/rust-forever-stack.hxx: Change member function implementation
in the forever stack to accomodate it's API changes.
* resolve/rust-late-name-resolver-2.0.cc (Late::visit): Use internal
node id. Emit an error when resolving multiple ambiguous values.
* resolve/rust-rib.cc (Rib::Definition::Definition): Add a default
constructor.
(Rib::Definition::is_ambiguous): Add a new function to determine
whether a function definition is ambiguous or not.
(Rib::Definition::to_string): Add a member function to convert a given
definition to a string.
(Rib::insert): Add new rules for value insertion in a rib. Insertion
order does not impact the result anymore: inserting a shadowable value
after a non shadowable one does not trigger an error anymore. All
shadowable values inserted in a rib are kepts until being replaced by a
non shadowable one.
(Rib::get): Return a definition instead of a node id.
* resolve/rust-rib.h: Update function prototypes.
* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::handle_use_glob):
Update return value container to match the new function's prototype.
(TopLevel::handle_use_dec): Likewise.
(flatten_glob): Likewise.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Make globbing definition shadowable by default

Elements from glob use declaration shall be shadowable by default.

gcc/rust/ChangeLog:

* resolve/rust-forever-stack.h: Add a new function prototype to insert
a shadowable definition.
* resolve/rust-forever-stack.hxx: Add the new insert_shadowable
function to insert shadowable definition into the forever stack.
* resolve/rust-name-resolution-context.cc (NameResolutionContext::insert_shadowable):
Likewise with the name resolution context.
* resolve/rust-name-resolution-context.h: Add name resolution context
insert_shadowable member function prototype.
* resolve/rust-toplevel-name-resolver-2.0.cc (GlobbingVisitor::visit):
Insert shadowable definition into the forever stack for glob use
declaration.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add call to globbing visitor

Globbing visitor did not visit subitems.

gcc/rust/ChangeLog:

* resolve/rust-late-name-resolver-2.0.cc (Late::visit): Add a check
for missing item.
* resolve/rust-toplevel-name-resolver-2.0.cc (GlobbingVisitor::go):
Add a new function in the visitor to dispatch the visitor to items in
the given module.
(TopLevel::handle_use_glob): Change call to visitor to use the pointer.
* resolve/rust-toplevel-name-resolver-2.0.h: Add prototype for new
member function.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Shape up name resolver for normal direct calls

Direct function calls did not work anymore due to the transition to the
new resolver.

gcc/rust/ChangeLog:

* checks/lints/rust-lint-marklive.cc (MarkLive::find_ref_node_id):
Add code path for the resolver 2.0
* resolve/rust-late-name-resolver-2.0.cc (Late::visit): Remove failing
label context resolve call.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add name resolution for on globbing use decl

This is the first part of the code required to enable globbing on use
declarations.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (GlobbingVisitor::visit):
Insert names into their namespace.
(TopLevel::visit): Insert ast module.
(TopLevel::handle_use_dec): Resolve use declaration.
(TopLevel::handle_use_glob): Use globbing visitor.
(flatten_list): Use globbing path vector.
(flatten_glob): Likewise.
(flatten): Likewise.
(prefix_subpaths): Add a function to prefix subpath.
* resolve/rust-toplevel-name-resolver-2.0.h (class GlobbingVisitor):
Add globbing visitor.
* util/rust-hir-map.cc (Mappings::insert_ast_module): Add function to
insert module in module hashmap.
(Mappings::lookup_ast_module): Add function to retrieve ast module.
* util/rust-hir-map.h: Add module map and getter/setter prototypes.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Add modules to type namespace

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Module
should be added to the type namespace in order to be retrieved later.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

late: Add bool builtin type

gcc/rust/ChangeLog:

* resolve/rust-late-name-resolver-2.0.cc (Late::setup_builtin_types):
Setup bool as builtin type.

Prevent error emission on resolver reentry

The resolver was emitting an error when meeting the same symbol twice.
What is important here is the origin of the resolved symbol, we should
emit an error when the name is similar but the symbol isn't be not when
the resolver is simply meeting the exact same symbol.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (insert_macros): Add
constraint over the ast node id.
(TopLevel::visit): Likewise.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Change error message on unresolved import

The error message did not match rustc's.

gcc/rust/ChangeLog:

* resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Change
error message.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>