ICE during validation of ill-typed static: assertion `left == right` failed at `rustc_const_eval/src/interpret/validity.rs`

### Code

(minimized)

```Rust
static S_COUNT: = std::sync::atomic::AtomicUsize::new(0);

fn main() {}
```

EDIT: `static S_COUNT = std::sync::atomic::AtomicUsize::new(0);` also causes ICE.


<details><summary>Original Code</summary>


```Rust
// Reject mixing cyclic structure and Drop when using trait
// objects to hide the cross-references.
//
// (Compare against ui/span/dropck_vec_cycle_checked.rs)

use std::cell::Cell;
use id::Id;

mod s {
 use std::sync::atomic::{AtomicUsize, Ordering};

 static S_COUNT: = AtomicUsize::new(0);

 pub fn next_count() -> usize {
 S_COUNT.fetch_add(1, Ordering::SeqCst) + 1
 }
}

mod id {
 use s;
 #[derive(Debug)]
 pub struct Id {
 orig_count: usize,
 count: usize,
 }

 impl Id {
 pub fn new() -> Id {
 let c = s::next_count();
 println!("building Id {}", c);
 Id { orig_count: c, count: c }
 }
 pub fn count(&self) -> usize {
 println!("Id::count on {} returns {}", self.orig_count, self.count);
 self.count
 }
 }

 impl Drop for Id {
 fn drop(&mut self) {
 println!("dropping Id {}", self.count);
 self.count = 0;
 }
 }
}

trait HasId {
 fn count(&self) -> usize;
}

#[derive(Debug)]
struct CheckId<T:HasId> {
 v: T
}

#[allow(non_snake_case)]
fn CheckId<T:HasId>(t: T) -> CheckId<T> { CheckId{ v: t } }

impl<T:HasId> Drop for CheckId<T> {
 fn drop(&mut self) {
 assert!(self.v.count() > 0);
 }
}

trait Obj<'a> : HasId {
 fn set0(&self, b: &'a Box<dyn Obj<'a>>);
 fn set1(&self, b: &'a Box<dyn Obj<'a>>);
}

struct O<'a> {
 id: Id,
 obj0: CheckId<Cell<Option<&'a Box<dyn Obj<'a>>>>>,
 obj1: CheckId<Cell<Option<&'a Box<dyn Obj<'a>>>>>,
}

impl<'a> HasId for O<'a> {
 fn count(&self) -> usize { self.id.count() }
}

impl<'a> O<'a> {
 fn new() -> Box<O<'a>> {
 Box::new(O {
 id: Id::new(),
 obj0: CheckId(Cell::new(None)),
 obj1: CheckId(Cell::new(None)),
 })
 }
}

impl<'a> HasId for Cell<Option<&'a Box<dyn Obj<'a>>>> {
 fn count(&self) -> usize {
 match self.get() {
 None => 1,
 Some(c) => c.count(),
 }
 }
}

impl<'a> Obj<'a> for O<'a> {
 fn set0(&self, b: &'a Box<dyn Obj<'a>>) {
 self.obj0.v.set(Some(b))
 }
 fn set1(&self, b: &'a Box<dyn Obj<'a>>) {
 self.obj1.v.set(Some(b))
 }
}


fn f() {
 let (o1, o2, o3): (Box<dyn Obj>, Box<dyn Obj>, Box<dyn Obj>) = (O::new(), O::new(), O::new());
 o1.set0(&o2); //~ ERROR `o2` does not live long enough
 o1.set1(&o3); //~ ERROR `o3` does not live long enough
 o2.set0(&o2); //~ ERROR `o2` does not live long enough
 o2.set1(&o3); //~ ERROR `o3` does not live long enough
 o3.set0(&o1); //~ ERROR `o1` does not live long enough
 o3.set1(&o2); //~ ERROR `o2` does not live long enough
}

fn main() {
 f();
}
```


</details>


### Meta


`rustc --version --verbose`:
```
rustc 1.79.0-nightly (e3181b091 2024-04-18)
binary: rustc
commit-hash: e3181b091e88321f5ea149afed6db0edf0a4f37b
commit-date: 2024-04-18
host: aarch64-apple-darwin
release: 1.79.0-nightly
LLVM version: 18.1.4
```

### Command
`rustc`

### Error output

```
error: missing type for `static` item
 --> m_crushed_713540.rs:1:16
 |
1 | static S_COUNT: = std::sync::atomic::AtomicUsize::new(0);
 | ^ help: provide a type for the static variable: `AtomicUsize`
```


<details><summary>Backtrace</summary>


```

thread 'rustc' panicked at compiler/rustc_const_eval/src/interpret/validity.rs:727:21:
assertion `left == right` failed
 left: Mut
 right: Not
stack backtrace:
 0: _rust_begin_unwind
 1: core::panicking::panic_fmt
 2: core::panicking::assert_failed_inner
 3: core::panicking::assert_failed::<rustc_ast_ir::Mutability, rustc_ast_ir::Mutability>
 4: rustc_const_eval::interpret::validity::mutability::<rustc_const_eval::const_eval::machine::CompileTimeInterpreter>
 5: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeInterpreter> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eval::machine::CompileTimeInterpreter>>::visit_value
 6: <rustc_const_eval::interpret::validity::ValidityVisitor<rustc_const_eval::const_eval::machine::CompileTimeInterpreter> as rustc_const_eval::interpret::visitor::ValueVisitor<rustc_const_eval::const_eval::machine::CompileTimeInterpreter>>::walk_value
 7: <rustc_const_eval::interpret::eval_context::InterpCx<rustc_const_eval::const_eval::machine::CompileTimeInterpreter>>::validate_operand_internal
 8: rustc_const_eval::const_eval::eval_queries::eval_static_initializer_provider
 [... omitted 2 frames ...]
 9: <rustc_middle::hir::map::Map>::par_body_owners::<rustc_hir_analysis::check_crate::{closure#3}>::{closure#0}
 10: <rustc_data_structures::sync::parallel::ParallelGuard>::run::<(), rustc_data_structures::sync::parallel::enabled::par_for_each_in<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], <rustc_middle::hir::map::Map>::par_body_owners<rustc_hir_analysis::check_crate::{closure#3}>::{closure#0}>::{closure#0}::{closure#0}::{closure#0}>
 11: rustc_hir_analysis::check_crate
 12: rustc_interface::passes::analysis
 [... omitted 2 frames ...]
 13: <rustc_middle::ty::context::GlobalCtxt>::enter::<rustc_driver_impl::run_compiler::{closure#0}::{closure#1}::{closure#3}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
 14: <rustc_interface::interface::Compiler>::enter::<rustc_driver_impl::run_compiler::{closure#0}::{closure#1}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_span::ErrorGuaranteed>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: please make sure that you have updated to the latest nightly

note: please attach the file at `/Users/jisukbyun/workspace/placeholder/240420_rustexec/rustc-ice-2024-04-19T15_57_00-86400.txt` to your bug report

query stack during panic:
#0 [eval_static_initializer] evaluating initializer of static `S_COUNT`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 1 previous error
```


</details>


### Note

- ICE-loc: `compiler/rustc_const_eval/src/interpret/validity.rs:727:21`
https://github.com/rust-lang/rust/blob/e3181b091e88321f5ea149afed6db0edf0a4f37b/compiler/rustc_const_eval/src/interpret/validity.rs#L726-L728

- Original ICE-triggering code is mutated from test-file `dropck_trait_cycle_checked.rs`
 https://github.com/rust-lang/rust/blob/07d0d7ce3fd22e4fadd61206034af6fadcdb3e4f/tests/ui/dropck/dropck_trait_cycle_checked.rs#L12

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

ICE during validation of ill-typed static: assertion `left == right` failed at `rustc_const_eval/src/interpret/validity.rs` #124164

Code

Meta

Command

Error output

Note

7 remaining items

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Parent issue

Development

Participants

	if let Some((_, alloc)) = ecx.memory.alloc_map.get(alloc_id) {
	assert_eq!(alloc.mutability, mutability);
	}

ICE during validation of ill-typed static: assertion left == right failed at rustc_const_eval/src/interpret/validity.rs #124164

Description

Code

Meta

Command

Error output

Note

Activity

cushionbadak commented on Apr 19, 2024

RalfJung commented on May 6, 2024

RalfJung commented on May 6, 2024

oli-obk commented on May 23, 2024

7 remaining items

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Parent issue

Development

Participants

Issue actions

ICE during validation of ill-typed static: assertion `left == right` failed at `rustc_const_eval/src/interpret/validity.rs` #124164