Auto merge of rust-lang#151363 - JonathanBrouwer:rollup-yIXELnN, r=JonathanBrouwer

Rollup of 2 pull requests

Successful merges:

 - rust-lang#151336 (Port rustc codegen attrs)
 - rust-lang#151359 (compiler: Temporarily re-export `assert_matches!` to reduce stabilization churn)

r? @ghost

Author: bors

compiler/rustc_abi/src/extern_abi/tests.rs

@@ -1,6 +1,7 @@
-use std::assert_matches::assert_matches;
 use std::str::FromStr;
 
+use rustc_data_structures::assert_matches;
+
 use super::*;
 
 #[allow(non_snake_case)]

compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs

@@ -320,3 +320,27 @@ impl<S: Stage> NoArgsAttributeParser<S> for RustcHasIncoherentInherentImplsParse
     ]);
     const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcHasIncoherentInherentImpls;
 }
+
+pub(crate) struct RustcNounwindParser;
+
+impl<S: Stage> NoArgsAttributeParser<S> for RustcNounwindParser {
+    const PATH: &[Symbol] = &[sym::rustc_nounwind];
+    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
+    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[
+        Allow(Target::Fn),
+        Allow(Target::ForeignFn),
+        Allow(Target::Method(MethodKind::Inherent)),
+        Allow(Target::Method(MethodKind::TraitImpl)),
+        Allow(Target::Method(MethodKind::Trait { body: true })),
+    ]);
+    const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcNounwind;
+}
+
+pub(crate) struct RustcOffloadKernelParser;
+
+impl<S: Stage> NoArgsAttributeParser<S> for RustcOffloadKernelParser {
+    const PATH: &[Symbol] = &[sym::rustc_offload_kernel];
+    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
+    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Fn)]);
+    const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcOffloadKernel;
+}

compiler/rustc_attr_parsing/src/context.rs

@@ -78,8 +78,8 @@ use crate::attributes::rustc_internal::{
     RustcLintDiagnosticsParser, RustcLintOptDenyFieldAccessParser, RustcLintOptTyParser,
     RustcLintQueryInstabilityParser, RustcLintUntrackedQueryInformationParser, RustcMainParser,
     RustcMustImplementOneOfParser, RustcNeverReturnsNullPointerParser,
-    RustcNoImplicitAutorefsParser, RustcObjectLifetimeDefaultParser, RustcScalableVectorParser,
-    RustcSimdMonomorphizeLaneLimitParser,
+    RustcNoImplicitAutorefsParser, RustcNounwindParser, RustcObjectLifetimeDefaultParser,
+    RustcOffloadKernelParser, RustcScalableVectorParser, RustcSimdMonomorphizeLaneLimitParser,
 };
 use crate::attributes::semantics::MayDangleParser;
 use crate::attributes::stability::{
@@ -296,6 +296,8 @@ attribute_parsers!(
         Single<WithoutArgs<RustcMainParser>>,
         Single<WithoutArgs<RustcNeverReturnsNullPointerParser>>,
         Single<WithoutArgs<RustcNoImplicitAutorefsParser>>,
+        Single<WithoutArgs<RustcNounwindParser>>,
+        Single<WithoutArgs<RustcOffloadKernelParser>>,
         Single<WithoutArgs<RustcPassIndirectlyInNonRusticAbisParser>>,
         Single<WithoutArgs<RustcReallocatorParser>>,
         Single<WithoutArgs<RustcShouldNotBeCalledOnConstItems>>,

compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs

@@ -3,8 +3,7 @@
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::untranslatable_diagnostic)]
 
-use std::assert_matches::assert_matches;
-
+use rustc_data_structures::assert_matches;
 use rustc_errors::{Applicability, Diag, EmissionGuarantee};
 use rustc_hir as hir;
 use rustc_hir::intravisit::Visitor;

compiler/rustc_borrowck/src/type_check/input_output.rs

@@ -7,9 +7,8 @@
 //! `RETURN_PLACE` the MIR arguments) are always fully normalized (and
 //! contain revealed `impl Trait` values).
 
-use std::assert_matches::assert_matches;
-
 use itertools::Itertools;
+use rustc_data_structures::assert_matches;
 use rustc_hir as hir;
 use rustc_infer::infer::{BoundRegionConversionTime, RegionVariableOrigin};
 use rustc_middle::mir::*;

compiler/rustc_builtin_macros/src/test.rs

@@ -1,12 +1,12 @@
 //! The expansion from a test function to the appropriate test struct for libtest
 //! Ideally, this code would be in libtest but for efficiency and error messages it lives here.
 
-use std::assert_matches::assert_matches;
 use std::iter;
 
 use rustc_ast::{self as ast, GenericParamKind, HasNodeId, attr, join_path_idents};
 use rustc_ast_pretty::pprust;
 use rustc_attr_parsing::AttributeParser;
+use rustc_data_structures::assert_matches;
 use rustc_errors::{Applicability, Diag, Level};
 use rustc_expand::base::*;
 use rustc_hir::Attribute;

compiler/rustc_codegen_llvm/src/asm.rs

@@ -1,9 +1,8 @@
-use std::assert_matches::assert_matches;
-
 use rustc_abi::{BackendRepr, Float, Integer, Primitive, Scalar};
 use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece};
 use rustc_codegen_ssa::mir::operand::OperandValue;
 use rustc_codegen_ssa::traits::*;
+use rustc_data_structures::assert_matches;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_middle::ty::Instance;
 use rustc_middle::ty::layout::TyAndLayout;

compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs

@@ -1,9 +1,9 @@
-use std::assert_matches::assert_matches;
 use std::sync::Arc;
 
 use itertools::Itertools;
 use rustc_abi::Align;
 use rustc_codegen_ssa::traits::{BaseTypeCodegenMethods, ConstCodegenMethods};
+use rustc_data_structures::assert_matches;
 use rustc_data_structures::fx::FxIndexMap;
 use rustc_index::IndexVec;
 use rustc_middle::ty::TyCtxt;

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -1,4 +1,3 @@
-use std::assert_matches::assert_matches;
 use std::cmp::Ordering;
 use std::ffi::c_uint;
 use std::ptr;
@@ -13,6 +12,7 @@ use rustc_codegen_ssa::errors::{ExpectedPointerMutability, InvalidMonomorphizati
 use rustc_codegen_ssa::mir::operand::{OperandRef, OperandValue};
 use rustc_codegen_ssa::mir::place::{PlaceRef, PlaceValue};
 use rustc_codegen_ssa::traits::*;
+use rustc_data_structures::assert_matches;
 use rustc_hir::def_id::LOCAL_CRATE;
 use rustc_hir::{self as hir};
 use rustc_middle::mir::BinOp;

compiler/rustc_codegen_ssa/src/back/write.rs

@@ -1,4 +1,3 @@
-use std::assert_matches::assert_matches;
 use std::marker::PhantomData;
 use std::panic::AssertUnwindSafe;
 use std::path::{Path, PathBuf};
@@ -8,6 +7,7 @@ use std::{fs, io, mem, str, thread};
 
 use rustc_abi::Size;
 use rustc_ast::attr;
+use rustc_data_structures::assert_matches;
 use rustc_data_structures::fx::FxIndexMap;
 use rustc_data_structures::jobserver::{self, Acquired};
 use rustc_data_structures::memmap::Mmap;