Auto merge of #130709 - RalfJung:miri-sync, r=RalfJung

Miri subtree update

r? `@ghost`

Author: bors

src/tools/miri/.github/workflows/ci.yml

@@ -12,6 +12,9 @@ on:
   schedule:
     - cron: '44 4 * * *' # At 4:44 UTC every day.
 
+permissions:
+  contents: write
+
 defaults:
   run:
     shell: bash

src/tools/miri/miri-script/src/args.rs

@@ -1,7 +1,7 @@
 use std::env;
 use std::iter;
 
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 
 pub struct Args {
     args: iter::Peekable<env::Args>,

src/tools/miri/miri-script/src/commands.rs

@@ -8,13 +8,13 @@ use std::path::PathBuf;
 use std::process;
 use std::time::Duration;
 
-use anyhow::{anyhow, bail, Context, Result};
+use anyhow::{Context, Result, anyhow, bail};
 use path_macro::path;
 use walkdir::WalkDir;
-use xshell::{cmd, Shell};
+use xshell::{Shell, cmd};
 
-use crate::util::*;
 use crate::Command;
+use crate::util::*;
 
 /// Used for rustc syncs.
 const JOSH_FILTER: &str =

src/tools/miri/miri-script/src/main.rs

@@ -6,7 +6,7 @@ mod util;
 
 use std::ops::Range;
 
-use anyhow::{anyhow, bail, Context, Result};
+use anyhow::{Context, Result, anyhow, bail};
 
 #[derive(Clone, Debug)]
 pub enum Command {

src/tools/miri/miri-script/src/util.rs

@@ -5,10 +5,10 @@ use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicBool, AtomicU32, Ordering};
 use std::{env, iter, thread};
 
-use anyhow::{anyhow, bail, Context, Result};
+use anyhow::{Context, Result, anyhow, bail};
 use dunce::canonicalize;
 use path_macro::path;
-use xshell::{cmd, Cmd, Shell};
+use xshell::{Cmd, Shell, cmd};
 
 pub fn miri_dir() -> std::io::Result<PathBuf> {
     const MIRI_SCRIPT_ROOT_DIR: &str = env!("CARGO_MANIFEST_DIR");

src/tools/miri/rust-version

@@ -1 +1 @@
-e2dc1a1c0f97a90319181a721ab317210307617a
+6ce376774c0bc46ac8be247bca93ff5a1287a8fc

src/tools/miri/rustfmt.toml

@@ -1,4 +1,4 @@
-version = "Two"
+style_edition = "2024"
 use_small_heuristics = "Max"
 match_arm_blocks = false
 match_arm_leading_pipes = "Preserve"

src/tools/miri/src/alloc_addresses/reuse_pool.rs

@@ -4,7 +4,7 @@ use rand::Rng;
 
 use rustc_target::abi::{Align, Size};
 
-use crate::{concurrency::VClock, MemoryKind, MiriConfig, ThreadId};
+use crate::{MemoryKind, MiriConfig, ThreadId, concurrency::VClock};
 
 const MAX_POOL_SIZE: usize = 64;
 

src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs

@@ -12,12 +12,12 @@ use std::mem;
 
 use rustc_data_structures::fx::FxHashSet;
 use rustc_middle::mir::{Mutability, RetagKind};
-use rustc_middle::ty::{self, layout::HasParamEnv, Ty};
+use rustc_middle::ty::{self, Ty, layout::HasParamEnv};
 use rustc_target::abi::{Abi, Size};
 
 use crate::borrow_tracker::{
-    stacked_borrows::diagnostics::{AllocHistory, DiagnosticCx, DiagnosticCxBuilder},
     GlobalStateInner, ProtectorKind,
+    stacked_borrows::diagnostics::{AllocHistory, DiagnosticCx, DiagnosticCxBuilder},
 };
 use crate::concurrency::data_race::{NaReadType, NaWriteType};
 use crate::*;
@@ -913,11 +913,10 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                 new_perm: NewPermission,
             ) -> InterpResult<'tcx> {
                 let val = self.ecx.read_immediate(&self.ecx.place_to_op(place)?)?;
-                let val = self.ecx.sb_retag_reference(
-                    &val,
-                    new_perm,
-                    RetagInfo { cause: self.retag_cause, in_field: self.in_field },
-                )?;
+                let val = self.ecx.sb_retag_reference(&val, new_perm, RetagInfo {
+                    cause: self.retag_cause,
+                    in_field: self.in_field,
+                })?;
                 self.ecx.write_immediate(*val, place)?;
                 Ok(())
             }
@@ -1003,11 +1002,10 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
             access: Some(AccessKind::Write),
             protector: Some(ProtectorKind::StrongProtector),
         };
-        this.sb_retag_place(
-            place,
-            new_perm,
-            RetagInfo { cause: RetagCause::InPlaceFnPassing, in_field: false },
-        )
+        this.sb_retag_place(place, new_perm, RetagInfo {
+            cause: RetagCause::InPlaceFnPassing,
+            in_field: false,
+        })
     }
 
     /// Mark the given tag as exposed. It was found on a pointer with the given AllocId.

src/tools/miri/src/borrow_tracker/stacked_borrows/stack.rs

@@ -4,11 +4,11 @@ use std::ops::Range;
 use rustc_data_structures::fx::FxHashSet;
 use tracing::trace;
 
+use crate::ProvenanceExtra;
 use crate::borrow_tracker::{
-    stacked_borrows::{Item, Permission},
     AccessKind, BorTag,
+    stacked_borrows::{Item, Permission},
 };
-use crate::ProvenanceExtra;
 
 /// Exactly what cache size we should use is a difficult trade-off. There will always be some
 /// workload which has a `BorTag` working set which exceeds the size of the cache, and ends up

src/tools/miri/src/borrow_tracker/tree_borrows/diagnostics.rs

@@ -4,12 +4,12 @@ use std::ops::Range;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_span::{Span, SpanData};
 
+use crate::borrow_tracker::ProtectorKind;
 use crate::borrow_tracker::tree_borrows::{
     perms::{PermTransition, Permission},
     tree::LocationState,
     unimap::UniIndex,
 };
-use crate::borrow_tracker::ProtectorKind;
 use crate::*;
 
 /// Cause of an access: either a real access or one

src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs

@@ -1,6 +1,6 @@
 use rustc_middle::{
     mir::{Mutability, RetagKind},
-    ty::{self, layout::HasParamEnv, Ty},
+    ty::{self, Ty, layout::HasParamEnv},
 };
 use rustc_span::def_id::DefId;
 use rustc_target::abi::{Abi, Size};

src/tools/miri/src/borrow_tracker/tree_borrows/perms.rs

@@ -1,9 +1,9 @@
 use std::cmp::{Ordering, PartialOrd};
 use std::fmt;
 
+use crate::AccessKind;
 use crate::borrow_tracker::tree_borrows::diagnostics::TransitionError;
 use crate::borrow_tracker::tree_borrows::tree::AccessRelatedness;
-use crate::AccessKind;
 
 /// The activation states of a pointer.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
@@ -345,18 +345,14 @@ pub mod diagnostics {
     use super::*;
     impl fmt::Display for PermissionPriv {
         fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-            write!(
-                f,
-                "{}",
-                match self {
-                    ReservedFrz { conflicted: false } => "Reserved",
-                    ReservedFrz { conflicted: true } => "Reserved (conflicted)",
-                    ReservedIM => "Reserved (interior mutable)",
-                    Active => "Active",
-                    Frozen => "Frozen",
-                    Disabled => "Disabled",
-                }
-            )
+            write!(f, "{}", match self {
+                ReservedFrz { conflicted: false } => "Reserved",
+                ReservedFrz { conflicted: true } => "Reserved (conflicted)",
+                ReservedIM => "Reserved (interior mutable)",
+                Active => "Active",
+                Frozen => "Frozen",
+                Disabled => "Disabled",
+            })
         }
     }
 
@@ -551,7 +547,7 @@ impl Permission {
 #[cfg(test)]
 mod propagation_optimization_checks {
     pub use super::*;
-    use crate::borrow_tracker::tree_borrows::exhaustive::{precondition, Exhaustive};
+    use crate::borrow_tracker::tree_borrows::exhaustive::{Exhaustive, precondition};
 
     impl Exhaustive for PermissionPriv {
         fn exhaustive() -> Box<dyn Iterator<Item = Self>> {

src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs

@@ -19,10 +19,10 @@ use rustc_span::Span;
 use rustc_target::abi::Size;
 
 use crate::borrow_tracker::tree_borrows::{
+    Permission,
     diagnostics::{self, NodeDebugInfo, TbError, TransitionError},
     perms::PermTransition,
     unimap::{UniEntry, UniIndex, UniKeyMap, UniValMap},
-    Permission,
 };
 use crate::borrow_tracker::{GlobalState, ProtectorKind};
 use crate::*;
@@ -587,16 +587,13 @@ impl Tree {
             let mut debug_info = NodeDebugInfo::new(root_tag, root_default_perm, span);
             // name the root so that all allocations contain one named pointer
             debug_info.add_name("root of the allocation");
-            nodes.insert(
-                root_idx,
-                Node {
-                    tag: root_tag,
-                    parent: None,
-                    children: SmallVec::default(),
-                    default_initial_perm: root_default_perm,
-                    debug_info,
-                },
-            );
+            nodes.insert(root_idx, Node {
+                tag: root_tag,
+                parent: None,
+                children: SmallVec::default(),
+                default_initial_perm: root_default_perm,
+                debug_info,
+            });
             nodes
         };
         let rperms = {
@@ -626,16 +623,13 @@ impl<'tcx> Tree {
         let idx = self.tag_mapping.insert(new_tag);
         let parent_idx = self.tag_mapping.get(&parent_tag).unwrap();
         // Create the node
-        self.nodes.insert(
-            idx,
-            Node {
-                tag: new_tag,
-                parent: Some(parent_idx),
-                children: SmallVec::default(),
-                default_initial_perm,
-                debug_info: NodeDebugInfo::new(new_tag, default_initial_perm, span),
-            },
-        );
+        self.nodes.insert(idx, Node {
+            tag: new_tag,
+            parent: Some(parent_idx),
+            children: SmallVec::default(),
+            default_initial_perm,
+            debug_info: NodeDebugInfo::new(new_tag, default_initial_perm, span),
+        });
         // Register new_tag as a child of parent_tag
         self.nodes.get_mut(parent_idx).unwrap().children.push(idx);
         // Initialize perms

src/tools/miri/src/borrow_tracker/tree_borrows/tree/tests.rs

@@ -2,7 +2,7 @@
 #![cfg(test)]
 
 use super::*;
-use crate::borrow_tracker::tree_borrows::exhaustive::{precondition, Exhaustive};
+use crate::borrow_tracker::tree_borrows::exhaustive::{Exhaustive, precondition};
 use std::fmt;
 
 impl Exhaustive for LocationState {

src/tools/miri/src/concurrency/sync.rs

@@ -1,5 +1,5 @@
 use std::any::Any;
-use std::collections::{hash_map::Entry, VecDeque};
+use std::collections::{VecDeque, hash_map::Entry};
 use std::ops::Not;
 use std::time::Duration;
 
@@ -283,12 +283,10 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
         data: Option<Box<dyn Any>>,
     ) -> InterpResult<'tcx, MutexId> {
         let this = self.eval_context_mut();
-        this.create_id(
-            lock,
-            offset,
-            |ecx| &mut ecx.machine.sync.mutexes,
-            Mutex { data, ..Default::default() },
-        )
+        this.create_id(lock, offset, |ecx| &mut ecx.machine.sync.mutexes, Mutex {
+            data,
+            ..Default::default()
+        })
     }
 
     /// Lazily create a new mutex.
@@ -355,12 +353,10 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
         data: Option<Box<dyn Any>>,
     ) -> InterpResult<'tcx, CondvarId> {
         let this = self.eval_context_mut();
-        this.create_id(
-            condvar,
-            offset,
-            |ecx| &mut ecx.machine.sync.condvars,
-            Condvar { data, ..Default::default() },
-        )
+        this.create_id(condvar, offset, |ecx| &mut ecx.machine.sync.condvars, Condvar {
+            data,
+            ..Default::default()
+        })
     }
 
     fn condvar_get_or_create_id(

src/tools/miri/src/concurrency/vector_clock.rs

@@ -1,5 +1,5 @@
 use rustc_index::Idx;
-use rustc_span::{Span, SpanData, DUMMY_SP};
+use rustc_span::{DUMMY_SP, Span, SpanData};
 use smallvec::SmallVec;
 use std::{
     cmp::Ordering,

src/tools/miri/src/diagnostics.rs

@@ -2,7 +2,7 @@ use std::fmt::{self, Write};
 use std::num::NonZero;
 
 use rustc_errors::{Diag, DiagMessage, Level};
-use rustc_span::{SpanData, Symbol, DUMMY_SP};
+use rustc_span::{DUMMY_SP, SpanData, Symbol};
 use rustc_target::abi::{Align, Size};
 
 use crate::borrow_tracker::stacked_borrows::diagnostics::TagHistory;

src/tools/miri/src/eval.rs

@@ -13,9 +13,8 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_hir::def::Namespace;
 use rustc_hir::def_id::DefId;
 use rustc_middle::ty::{
-    self,
+    self, Ty, TyCtxt,
     layout::{LayoutCx, LayoutOf},
-    Ty, TyCtxt,
 };
 use rustc_target::spec::abi::Abi;
 

src/tools/miri/src/helpers.rs

@@ -7,12 +7,12 @@ use std::time::Duration;
 
 use rand::RngCore;
 
-use rustc_apfloat::ieee::{Double, Half, Quad, Single};
 use rustc_apfloat::Float;
+use rustc_apfloat::ieee::{Double, Half, Quad, Single};
 use rustc_hir::{
-    def::{DefKind, Namespace},
-    def_id::{CrateNum, DefId, CRATE_DEF_INDEX, LOCAL_CRATE},
     Safety,
+    def::{DefKind, Namespace},
+    def_id::{CRATE_DEF_INDEX, CrateNum, DefId, LOCAL_CRATE},
 };
 use rustc_index::IndexVec;
 use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
@@ -21,9 +21,8 @@ use rustc_middle::middle::exported_symbols::ExportedSymbol;
 use rustc_middle::mir;
 use rustc_middle::ty::layout::{FnAbiOf, MaybeResult};
 use rustc_middle::ty::{
-    self,
+    self, FloatTy, IntTy, Ty, TyCtxt, UintTy,
     layout::{LayoutOf, TyAndLayout},
-    FloatTy, IntTy, Ty, TyCtxt, UintTy,
 };
 use rustc_session::config::CrateType;
 use rustc_span::{Span, Symbol};

src/tools/miri/src/intrinsics/mod.rs

@@ -9,12 +9,12 @@ use rustc_middle::{
     mir,
     ty::{self, FloatTy},
 };
-use rustc_span::{sym, Symbol};
+use rustc_span::{Symbol, sym};
 use rustc_target::abi::Size;
 
 use crate::*;
 use atomic::EvalContextExt as _;
-use helpers::{check_arg_count, ToHost, ToSoft};
+use helpers::{ToHost, ToSoft, check_arg_count};
 use simd::EvalContextExt as _;
 
 impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {}

src/tools/miri/src/intrinsics/simd.rs

@@ -3,10 +3,10 @@ use either::Either;
 use rustc_apfloat::{Float, Round};
 use rustc_middle::ty::layout::{HasParamEnv, LayoutOf};
 use rustc_middle::{mir, ty, ty::FloatTy};
-use rustc_span::{sym, Symbol};
+use rustc_span::{Symbol, sym};
 use rustc_target::abi::{Endian, HasDataLayout};
 
-use crate::helpers::{bool_to_simd_element, check_arg_count, simd_element_to_bool, ToHost, ToSoft};
+use crate::helpers::{ToHost, ToSoft, bool_to_simd_element, check_arg_count, simd_element_to_bool};
 use crate::*;
 
 #[derive(Copy, Clone)]