ICE: InterErrorInfo / Unsupported with `-Zmiri-symbolic-alignment-check`

[matthiaskrgr]

// check-pass

// This is a regression test for ICEs from
// https://github.com/rust-lang/rust/issues/71612
// and
// https://github.com/rust-lang/rust/issues/71709

#[derive(Copy, Clone)]
pub struct Glfw;

static mut GLFW: Option<Glfw> = None;
pub fn new() -> Glfw {
    unsafe {
        if let Some(glfw) = GLFW {
            return glfw;
        } else {
            todo!()
        }
    };
}

extern "C" {
    static _dispatch_queue_attr_concurrent: [u8; 0];
}

static DISPATCH_QUEUE_CONCURRENT: &'static [u8; 0] =
    unsafe { &_dispatch_queue_attr_concurrent };

fn main() {
    *DISPATCH_QUEUE_CONCURRENT;
    new();
}

MIRIFLAGS="-Zmiri-symbolic-alignment-check " cargo miri run

Preparing a sysroot for Miri (target: x86_64-unknown-linux-gnu)... done
WARNING: Ignoring `RUSTC_WRAPPER` environment variable, Miri does not support wrapping.
    Finished dev [unoptimized + debuginfo] target(s) in 0.02s
     Running `/home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo-miri runner target/miri/x86_64-unknown-linux-gnu/debug/ice`
warning: unused unary operation that must be used
  --> src/main.rs:30:5
   |
30 |     *DISPATCH_QUEUE_CONCURRENT;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the unary operation produces a value
   |
   = note: `#[warn(unused_must_use)]` on by default
help: use `let _ = ...` to ignore the resulting value
   |
30 |     let _ = *DISPATCH_QUEUE_CONCURRENT;
   |     +++++++

thread 'rustc' panicked at src/tools/miri/src/machine.rs:896:56:
called `Result::unwrap()` on an `Err` value: InterpErrorInfo(InterpErrorInfoInner { kind: Unsupported(Unsupported("`extern` static `_dispatch_queue_attr_concurrent` from crate `ice` is not supported by Miri")), backtrace: InterpErrorBacktrace { backtrace: None } })
stack backtrace:
   0:     0x7fd269222d16 - std::backtrace_rs::backtrace::libunwind::trace::he544685250360e22
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7fd269222d16 - std::backtrace_rs::backtrace::trace_unsynchronized::h664adef12633380a
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fd269222d16 - std::sys_common::backtrace::_print_fmt::hba7ee045aeee07b0
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7fd269222d16 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc80b7ff177a688f2
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fd269275770 - core::fmt::rt::Argument::fmt::h605309ab4829b6b5
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/core/src/fmt/rt.rs:142:9
   5:     0x7fd269275770 - core::fmt::write::h5f24f526de99e105
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/core/src/fmt/mod.rs:1120:17
   6:     0x7fd26921661f - std::io::Write::write_fmt::h711c920f97cd3d8c
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/io/mod.rs:1846:15
   7:     0x7fd269222af4 - std::sys_common::backtrace::_print::ha279702af2871260
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7fd269222af4 - std::sys_common::backtrace::print::hc1f3820f405abdd3
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7fd269225887 - std::panicking::default_hook::{{closure}}::h5058841d19c78172
  10:     0x7fd2692255e9 - std::panicking::default_hook::h60a42497ec033f97
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/panicking.rs:292:9
  11:     0x7fd265f371fc - std[4337b1e3d1c66af6]::panicking::update_hook::<alloc[6a28242b4f343ab9]::boxed::Box<rustc_driver_impl[e51f6499da6a94b9]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7fd269225fd6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h437fd8fcb0ff0cea
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/alloc/src/boxed.rs:2029:9
  13:     0x7fd269225fd6 - std::panicking::rust_panic_with_hook::h294fbe090fe44fa4
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/panicking.rs:785:13
  14:     0x7fd269225d22 - std::panicking::begin_panic_handler::{{closure}}::h2074d67fa119e5b4
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/panicking.rs:659:13
  15:     0x7fd269223216 - std::sys_common::backtrace::__rust_end_short_backtrace::h1e9fefdcf90d724c
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/sys_common/backtrace.rs:171:18
  16:     0x7fd269225a74 - rust_begin_unwind
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/panicking.rs:647:5
  17:     0x7fd269271e75 - core::panicking::panic_fmt::h4707f51af56598f7
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/core/src/panicking.rs:72:14
  18:     0x7fd269272573 - core::result::unwrap_failed::h252c292c1db352c0
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/core/src/result.rs:1649:5
  19:     0x557358fcaa9e - <rustc_const_eval[47fec39e217f91ee]::interpret::eval_context::InterpCx<miri[5697a765cfc7294]::machine::MiriMachine>>::is_ptr_misaligned
  20:     0x557358fdd014 - <rustc_const_eval[47fec39e217f91ee]::interpret::eval_context::InterpCx<miri[5697a765cfc7294]::machine::MiriMachine>>::ref_to_mplace
  21:     0x557358fc3c9e - <rustc_const_eval[47fec39e217f91ee]::interpret::validity::ValidityVisitor<miri[5697a765cfc7294]::machine::MiriMachine>>::check_safe_pointer
  22:     0x557358ff2a2d - <rustc_const_eval[47fec39e217f91ee]::interpret::validity::ValidityVisitor<miri[5697a765cfc7294]::machine::MiriMachine> as rustc_const_eval[47fec39e217f91ee]::interpret::visitor::ValueVisitor<miri[5697a765cfc7294]::machine::MiriMachine>>::visit_value
  23:     0x557358fcae2c - <rustc_const_eval[47fec39e217f91ee]::interpret::eval_context::InterpCx<miri[5697a765cfc7294]::machine::MiriMachine>>::validate_operand_internal
  24:     0x557358fbe4a4 - <rustc_const_eval[47fec39e217f91ee]::interpret::eval_context::InterpCx<miri[5697a765cfc7294]::machine::MiriMachine>>::eval_rvalue_into_place
  25:     0x55735903d583 - <rustc_const_eval[47fec39e217f91ee]::interpret::eval_context::InterpCx<miri[5697a765cfc7294]::machine::MiriMachine> as miri[5697a765cfc7294]::concurrency::thread::EvalContextExt>::run_threads
  26:     0x55735904dab4 - miri[5697a765cfc7294]::eval::eval_entry
  27:     0x557358e8be63 - <miri[bfa1a3b834c7e317]::MiriCompilerCalls as rustc_driver_impl[e51f6499da6a94b9]::Callbacks>::after_analysis
  28:     0x7fd267f182ee - rustc_interface[e57535df52585ed5]::interface::run_compiler::<core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>, rustc_driver_impl[e51f6499da6a94b9]::run_compiler::{closure#0}>::{closure#0}
  29:     0x7fd267bada86 - std[4337b1e3d1c66af6]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[e57535df52585ed5]::util::run_in_thread_with_globals<rustc_interface[e57535df52585ed5]::util::run_in_thread_pool_with_globals<rustc_interface[e57535df52585ed5]::interface::run_compiler<core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>, rustc_driver_impl[e51f6499da6a94b9]::run_compiler::{closure#0}>::{closure#0}, core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>>::{closure#0}, core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>>
  30:     0x7fd267bad8b3 - <<std[4337b1e3d1c66af6]::thread::Builder>::spawn_unchecked_<rustc_interface[e57535df52585ed5]::util::run_in_thread_with_globals<rustc_interface[e57535df52585ed5]::util::run_in_thread_pool_with_globals<rustc_interface[e57535df52585ed5]::interface::run_compiler<core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>, rustc_driver_impl[e51f6499da6a94b9]::run_compiler::{closure#0}>::{closure#0}, core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>>::{closure#0}, core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[cc6cd760d986f799]::result::Result<(), rustc_span[ecf473d7733698d2]::ErrorGuaranteed>>::{closure#1} as core[cc6cd760d986f799]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  31:     0x7fd26922f675 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc4b9a6efba849e51
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/alloc/src/boxed.rs:2015:9
  32:     0x7fd26922f675 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc525ee5ac423ddcd
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/alloc/src/boxed.rs:2015:9
  33:     0x7fd26922f675 - std::sys::pal::unix::thread::Thread::new::thread_start::h31b81f67226864c0
                               at /rustc/bf3c6c5bed498f41ad815641319a1ad9bcecb8e8/library/std/src/sys/pal/unix/thread.rs:108:17
  34:     0x7fd262fbd9eb - <unknown>
  35:     0x7fd2630417cc - <unknown>
  36:                0x0 - <unknown>

error: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/miri/issues/new

note: please attach the file at `/tmp/im/ice/rustc-ice-2024-02-03T16_27_38-2424885.txt` to your bug report

note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED] -C target-cpu=native -Z miri-symbolic-alignment-check

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
end of query stack

Miri caused an ICE during evaluation. Here's the interpreter backtrace at the time of the panic:
note: the place in the program where the ICE was triggered
  --> src/main.rs:30:6
   |
30 |     *DISPATCH_QUEUE_CONCURRENT;
   |      ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: inside `main` at src/main.rs:30:6: 30:31
   = note: inside `<fn() as std::ops::FnOnce<()>>::call_once - shim(fn())` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
   = note: inside `std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/sys_common/backtrace.rs:155:18: 155:21
   = note: inside closure at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/rt.rs:166:18: 166:82
   = note: inside `std::ops::function::impls::<impl std::ops::FnOnce<()> for &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe>::call_once` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:284:13: 284:31
   = note: inside `std::panicking::r#try::do_call::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:554:40: 554:43
   = note: inside `std::panicking::r#try::<i32, &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:518:19: 518:81
   = note: inside `std::panic::catch_unwind::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panic.rs:142:14: 142:33
   = note: inside closure at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/rt.rs:148:48: 148:73
   = note: inside `std::panicking::r#try::do_call::<{closure@std::rt::lang_start_internal::{closure#2}}, isize>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:554:40: 554:43
   = note: inside `std::panicking::r#try::<isize, {closure@std::rt::lang_start_internal::{closure#2}}>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:518:19: 518:81
   = note: inside `std::panic::catch_unwind::<{closure@std::rt::lang_start_internal::{closure#2}}, isize>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panic.rs:142:14: 142:33
   = note: inside `std::rt::lang_start_internal` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/rt.rs:148:20: 148:98
   = note: inside `std::rt::lang_start::<()>` at /home/matthias/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/rt.rs:165:17: 170:6

warning: 1 warning emitted