Auto merge of rust-lang#137248 - matthiaskrgr:rollup-s18zjau, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#136936 (Use 'yes' instead of 'while-echo' in tests/ui/process/process-sigpipe.rs except 'nto')
 - rust-lang#137026 (Stabilize (and const-stabilize) `integer_sign_cast`)
 - rust-lang#137059 (fix: Alloc new errorcode E0803 for E0495)
 - rust-lang#137177 (Update `minifier-rs` version to `0.3.5`)
 - rust-lang#137210 (compiler: Stop reexporting stuff in cg_llvm::abi)
 - rust-lang#137213 (Remove `rustc_middle::mir::tcx` module.)
 - rust-lang#137216 (eval_outlives: bail out early if both regions are in the same SCC)
 - rust-lang#137228 (Fix typo in hidden internal docs of `TrustedRandomAccess`)
 - rust-lang#137242 (Add reference annotations for the `do_not_recommend` attribute)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

Cargo.lock

@@ -2211,9 +2211,9 @@ dependencies = [
 
 [[package]]
 name = "minifier"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cf47565b1430f5fe6c81d3afcb4b835271348d7eb35294a4d592e38dd09ea22"
+checksum = "9bfdc64e2f805f3d12965f10522000bae36e88d2cfea44112331f467d4f4bf68"
 
 [[package]]
 name = "minimal-lexical"

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -18,12 +18,11 @@ use rustc_hir::intravisit::{Visitor, walk_block, walk_expr};
 use rustc_hir::{CoroutineDesugaring, CoroutineKind, CoroutineSource, LangItem, PatField};
 use rustc_middle::bug;
 use rustc_middle::hir::nested_filter::OnlyBodies;
-use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::{
     self, AggregateKind, BindingForm, BorrowKind, ClearCrossCrate, ConstraintCategory,
     FakeBorrowKind, FakeReadCause, LocalDecl, LocalInfo, LocalKind, Location, MutBorrowKind,
-    Operand, Place, PlaceRef, ProjectionElem, Rvalue, Statement, StatementKind, Terminator,
-    TerminatorKind, VarBindingForm, VarDebugInfoContents,
+    Operand, Place, PlaceRef, PlaceTy, ProjectionElem, Rvalue, Statement, StatementKind,
+    Terminator, TerminatorKind, VarBindingForm, VarDebugInfoContents,
 };
 use rustc_middle::ty::print::PrintTraitRefExt as _;
 use rustc_middle::ty::{

compiler/rustc_borrowck/src/diagnostics/mod.rs

@@ -13,10 +13,9 @@ use rustc_infer::infer::{
 };
 use rustc_infer::traits::SelectionError;
 use rustc_middle::bug;
-use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::{
     AggregateKind, CallSource, ConstOperand, ConstraintCategory, FakeReadCause, Local, LocalInfo,
-    LocalKind, Location, Operand, Place, PlaceRef, ProjectionElem, Rvalue, Statement,
+    LocalKind, Location, Operand, Place, PlaceRef, PlaceTy, ProjectionElem, Rvalue, Statement,
     StatementKind, Terminator, TerminatorKind, find_self_call,
 };
 use rustc_middle::ty::print::Print;

compiler/rustc_borrowck/src/lib.rs

@@ -33,7 +33,6 @@ use rustc_index::{IndexSlice, IndexVec};
 use rustc_infer::infer::{
     InferCtxt, NllRegionVariableOrigin, RegionVariableOrigin, TyCtxtInferExt,
 };
-use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::*;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::fold::fold_regions;

compiler/rustc_borrowck/src/region_infer/mod.rs

@@ -1267,6 +1267,11 @@ impl<'tcx> RegionInferenceContext<'tcx> {
         let sub_region_scc = self.constraint_sccs.scc(sub_region);
         let sup_region_scc = self.constraint_sccs.scc(sup_region);
 
+        if sub_region_scc == sup_region_scc {
+            debug!("{sup_region:?}: {sub_region:?} holds trivially; they are in the same SCC");
+            return true;
+        }
+
         // If we are checking that `'sup: 'sub`, and `'sub` contains
         // some placeholder that `'sup` cannot name, then this is only
         // true if `'sup` outlives static.

compiler/rustc_borrowck/src/type_check/mod.rs

@@ -19,7 +19,6 @@ use rustc_infer::infer::{
     BoundRegion, BoundRegionConversionTime, InferCtxt, NllRegionVariableOrigin,
 };
 use rustc_infer::traits::PredicateObligations;
-use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::visit::{NonMutatingUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::*;
 use rustc_middle::traits::query::NoSolution;

compiler/rustc_codegen_llvm/src/abi.rs

@@ -2,19 +2,18 @@ use std::borrow::Borrow;
 use std::cmp;
 
 use libc::c_uint;
-use rustc_abi as abi;
-pub(crate) use rustc_abi::ExternAbi;
-use rustc_abi::{HasDataLayout, Primitive, Reg, RegKind, Size};
+use rustc_abi::{BackendRepr, HasDataLayout, Primitive, Reg, RegKind, Size};
 use rustc_codegen_ssa::MemFlags;
 use rustc_codegen_ssa::mir::operand::{OperandRef, OperandValue};
 use rustc_codegen_ssa::mir::place::{PlaceRef, PlaceValue};
 use rustc_codegen_ssa::traits::*;
 use rustc_middle::ty::Ty;
 use rustc_middle::ty::layout::LayoutOf;
-pub(crate) use rustc_middle::ty::layout::{WIDE_PTR_ADDR, WIDE_PTR_EXTRA};
 use rustc_middle::{bug, ty};
 use rustc_session::config;
-pub(crate) use rustc_target::callconv::*;
+use rustc_target::callconv::{
+    ArgAbi, ArgAttribute, ArgAttributes, ArgExtension, CastTarget, Conv, FnAbi, PassMode,
+};
 use rustc_target::spec::SanitizerSet;
 use smallvec::SmallVec;
 
@@ -458,7 +457,7 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
         match &self.ret.mode {
             PassMode::Direct(attrs) => {
                 attrs.apply_attrs_to_llfn(llvm::AttributePlace::ReturnValue, cx, llfn);
-                if let abi::BackendRepr::Scalar(scalar) = self.ret.layout.backend_repr {
+                if let BackendRepr::Scalar(scalar) = self.ret.layout.backend_repr {
                     apply_range_attr(llvm::AttributePlace::ReturnValue, scalar);
                 }
             }
@@ -499,7 +498,7 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
                 }
                 PassMode::Direct(attrs) => {
                     let i = apply(attrs);
-                    if let abi::BackendRepr::Scalar(scalar) = arg.layout.backend_repr {
+                    if let BackendRepr::Scalar(scalar) = arg.layout.backend_repr {
                         apply_range_attr(llvm::AttributePlace::Argument(i), scalar);
                     }
                 }
@@ -514,9 +513,7 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
                 PassMode::Pair(a, b) => {
                     let i = apply(a);
                     let ii = apply(b);
-                    if let abi::BackendRepr::ScalarPair(scalar_a, scalar_b) =
-                        arg.layout.backend_repr
-                    {
+                    if let BackendRepr::ScalarPair(scalar_a, scalar_b) = arg.layout.backend_repr {
                         apply_range_attr(llvm::AttributePlace::Argument(i), scalar_a);
                         apply_range_attr(llvm::AttributePlace::Argument(ii), scalar_b);
                     }
@@ -576,7 +573,7 @@ impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
         }
         if bx.cx.sess().opts.optimize != config::OptLevel::No
                 && llvm_util::get_version() < (19, 0, 0)
-                && let abi::BackendRepr::Scalar(scalar) = self.ret.layout.backend_repr
+                && let BackendRepr::Scalar(scalar) = self.ret.layout.backend_repr
                 && matches!(scalar.primitive(), Primitive::Int(..))
                 // If the value is a boolean, the range is 0..2 and that ultimately
                 // become 0..0 when the type becomes i1, which would be rejected

compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs

@@ -11,7 +11,9 @@ use rustc_codegen_ssa::traits::*;
 use rustc_hir::def::{CtorKind, DefKind};
 use rustc_hir::def_id::{DefId, LOCAL_CRATE};
 use rustc_middle::bug;
-use rustc_middle::ty::layout::{HasTypingEnv, LayoutOf, TyAndLayout};
+use rustc_middle::ty::layout::{
+    HasTypingEnv, LayoutOf, TyAndLayout, WIDE_PTR_ADDR, WIDE_PTR_EXTRA,
+};
 use rustc_middle::ty::{
     self, AdtKind, CoroutineArgsExt, ExistentialTraitRef, Instance, Ty, TyCtxt, Visibility,
 };
@@ -34,12 +36,12 @@ use crate::common::{AsCCharPtr, CodegenCx};
 use crate::debuginfo::dwarf_const;
 use crate::debuginfo::metadata::type_map::build_type_with_children;
 use crate::debuginfo::utils::{WidePtrKind, wide_pointer_kind};
+use crate::llvm;
 use crate::llvm::debuginfo::{
     DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType, DebugEmissionKind,
     DebugNameTableKind,
 };
 use crate::value::Value;
-use crate::{abi, llvm};
 
 impl PartialEq for llvm::Metadata {
     fn eq(&self, other: &Self) -> bool {
@@ -211,16 +213,16 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>(
                     };
 
                     let layout = cx.layout_of(layout_type);
-                    let addr_field = layout.field(cx, abi::WIDE_PTR_ADDR);
-                    let extra_field = layout.field(cx, abi::WIDE_PTR_EXTRA);
+                    let addr_field = layout.field(cx, WIDE_PTR_ADDR);
+                    let extra_field = layout.field(cx, WIDE_PTR_EXTRA);
 
                     let (addr_field_name, extra_field_name) = match wide_pointer_kind {
                         WidePtrKind::Dyn => ("pointer", "vtable"),
                         WidePtrKind::Slice => ("data_ptr", "length"),
                     };
 
-                    assert_eq!(abi::WIDE_PTR_ADDR, 0);
-                    assert_eq!(abi::WIDE_PTR_EXTRA, 1);
+                    assert_eq!(WIDE_PTR_ADDR, 0);
+                    assert_eq!(WIDE_PTR_EXTRA, 1);
 
                     // The data pointer type is a regular, thin pointer, regardless of whether this
                     // is a slice or a trait object.
@@ -242,7 +244,7 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>(
                             owner,
                             addr_field_name,
                             (addr_field.size, addr_field.align.abi),
-                            layout.fields.offset(abi::WIDE_PTR_ADDR),
+                            layout.fields.offset(WIDE_PTR_ADDR),
                             DIFlags::FlagZero,
                             data_ptr_type_di_node,
                             None,
@@ -252,7 +254,7 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>(
                             owner,
                             extra_field_name,
                             (extra_field.size, extra_field.align.abi),
-                            layout.fields.offset(abi::WIDE_PTR_EXTRA),
+                            layout.fields.offset(WIDE_PTR_EXTRA),
                             DIFlags::FlagZero,
                             type_di_node(cx, extra_field.ty),
                             None,

compiler/rustc_codegen_llvm/src/debuginfo/mod.rs

@@ -22,14 +22,14 @@ use rustc_session::config::{self, DebugInfo};
 use rustc_span::{
     BytePos, Pos, SourceFile, SourceFileAndLine, SourceFileHash, Span, StableSourceFileId, Symbol,
 };
+use rustc_target::callconv::FnAbi;
 use rustc_target::spec::DebuginfoKind;
 use smallvec::SmallVec;
 use tracing::debug;
 
 use self::metadata::{UNKNOWN_COLUMN_NUMBER, UNKNOWN_LINE_NUMBER, file_metadata, type_di_node};
 use self::namespace::mangled_name_of_instance;
 use self::utils::{DIB, create_DIArray, is_node_local_to_unit};
-use crate::abi::FnAbi;
 use crate::builder::Builder;
 use crate::common::{AsCCharPtr, CodegenCx};
 use crate::llvm;

compiler/rustc_codegen_llvm/src/declare.rs

@@ -16,10 +16,11 @@ use rustc_codegen_ssa::traits::TypeMembershipCodegenMethods;
 use rustc_data_structures::fx::FxIndexSet;
 use rustc_middle::ty::{Instance, Ty};
 use rustc_sanitizers::{cfi, kcfi};
+use rustc_target::callconv::FnAbi;
 use smallvec::SmallVec;
 use tracing::debug;
 
-use crate::abi::{FnAbi, FnAbiLlvmExt};
+use crate::abi::FnAbiLlvmExt;
 use crate::common::AsCCharPtr;
 use crate::context::{CodegenCx, SimpleCx};
 use crate::llvm::AttributePlace::Function;