Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

ICE: failed to get layout for .. with mir-opt-level=3, polymorphisation and strict init checks #114185

Open
matthiaskrgr opened this issue Jul 28, 2023 · 2 comments
Open

ICE: failed to get layout for .. with mir-opt-level=3, polymorphisation and strict init checks #114185

matthiaskrgr opened this issue Jul 28, 2023 · 2 comments
Labels
-Zpolymorphize Unstable option: Polymorphization. C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

Comments

@matthiaskrgr
Copy link
Member

Code

rustc -Zstrict-init-checks=yes -Zpolymorphize=on -Zmir-opt-level=3 file.rs

use std::mem::{self};

struct Wrap<T> {
    wrapped: T,
}

fn generic<T: 'static>() {
    unsafe {
        let _val: Wrap<&'static T> = mem::uninitialized();
    }
}

fn main() {}

Meta

rustc --version --verbose:

rustc 1.73.0-nightly (500647fd8 2023-07-27)
binary: rustc
commit-hash: 500647fd8138cc09e87edb08d62f81654fbf6ef8
commit-date: 2023-07-27
host: x86_64-unknown-linux-gnu
release: 1.73.0-nightly
LLVM version: 16.0.5

Error output

<output>
Backtrace 

error: internal compiler error: /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/compiler/rustc_middle/src/ty/layout.rs:958:21: failed to get layout for `&T`: Unknown(<T as std::ptr::Pointee>::Metadata),
                                despite it being a field (#0) of an existing layout: TyAndLayout {
                                    ty: Wrap<&T>,
                                    layout: Layout {
                                        size: Size(8 bytes),
                                        align: AbiAndPrefAlign {
                                            abi: Align(8 bytes),
                                            pref: Align(8 bytes),
                                        },
                                        abi: Scalar(
                                            Initialized {
                                                value: Pointer(
                                                    AddressSpace(
                                                        0,
                                                    ),
                                                ),
                                                valid_range: 1..=18446744073709551615,
                                            },
                                        ),
                                        fields: Arbitrary {
                                            offsets: [
                                                Size(0 bytes),
                                            ],
                                            memory_index: [
                                                0,
                                            ],
                                        },
                                        largest_niche: Some(
                                            Niche {
                                                offset: Size(0 bytes),
                                                value: Pointer(
                                                    AddressSpace(
                                                        0,
                                                    ),
                                                ),
                                                valid_range: 1..=18446744073709551615,
                                            },
                                        ),
                                        variants: Single {
                                            index: 0,
                                        },
                                        max_repr_align: None,
                                        unadjusted_abi_align: Align(8 bytes),
                                    },
                                }

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/compiler/rustc_errors/src/lib.rs:1645:9
stack backtrace:
   0:     0x7ff884b62fc1 - std::backtrace_rs::backtrace::libunwind::trace::h757b492de7e38f51
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7ff884b62fc1 - std::backtrace_rs::backtrace::trace_unsynchronized::he91e3190ab8d9c4f
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7ff884b62fc1 - std::sys_common::backtrace::_print_fmt::h6e24477d644418e5
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7ff884b62fc1 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3878e1514fe266c9
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7ff884bc949c - core::fmt::rt::Argument::fmt::h407ed1ed725edf0f
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/core/src/fmt/rt.rs:138:9
   5:     0x7ff884bc949c - core::fmt::write::h80ad66db775b495e
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/core/src/fmt/mod.rs:1094:21
   6:     0x7ff884b556be - std::io::Write::write_fmt::h535bb7b7a3791561
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/io/mod.rs:1714:15
   7:     0x7ff884b62dd5 - std::sys_common::backtrace::_print::hb86dcc235566a2df
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7ff884b62dd5 - std::sys_common::backtrace::print::h720885d4d12f3280
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7ff884b65e2a - std::panicking::panic_hook_with_disk_dump::{{closure}}::h760a0ce73306965a
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/panicking.rs:278:22
  10:     0x7ff884b65ac3 - std::panicking::panic_hook_with_disk_dump::hd7987642ef347005
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/panicking.rs:312:9
  11:     0x7ff887d83f09 - rustc_driver_impl[4c3415319b4cba14]::install_ice_hook::{closure#0}
  12:     0x7ff884b666d0 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc74b41dc32ec0c34
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/alloc/src/boxed.rs:2021:9
  13:     0x7ff884b666d0 - std::panicking::rust_panic_with_hook::h917efb61d3f92bd6
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/panicking.rs:733:13
  14:     0x7ff88834abb1 - std[5080124dd0971100]::panicking::begin_panic::<rustc_errors[528ecd00bd6aace4]::ExplicitBug>::{closure#0}
  15:     0x7ff888348e46 - std[5080124dd0971100]::sys_common::backtrace::__rust_end_short_backtrace::<std[5080124dd0971100]::panicking::begin_panic<rustc_errors[528ecd00bd6aace4]::ExplicitBug>::{closure#0}, !>
  16:     0x7ff8882bfaa6 - std[5080124dd0971100]::panicking::begin_panic::<rustc_errors[528ecd00bd6aace4]::ExplicitBug>
  17:     0x7ff8882d4dc4 - <rustc_errors[528ecd00bd6aace4]::HandlerInner>::bug::<alloc[4a1a2fec03248e1d]::string::String>
  18:     0x7ff8882d4c48 - <rustc_errors[528ecd00bd6aace4]::Handler>::bug::<alloc[4a1a2fec03248e1d]::string::String>
  19:     0x7ff88831bfec - rustc_middle[b0c4fd38174bce7e]::util::bug::opt_span_bug_fmt::<rustc_span[a85072546ba3a5ab]::span_encoding::Span>::{closure#0}
  20:     0x7ff88831adea - rustc_middle[b0c4fd38174bce7e]::ty::context::tls::with_opt::<rustc_middle[b0c4fd38174bce7e]::util::bug::opt_span_bug_fmt<rustc_span[a85072546ba3a5ab]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  21:     0x7ff88831adb8 - rustc_middle[b0c4fd38174bce7e]::ty::context::tls::with_context_opt::<rustc_middle[b0c4fd38174bce7e]::ty::context::tls::with_opt<rustc_middle[b0c4fd38174bce7e]::util::bug::opt_span_bug_fmt<rustc_span[a85072546ba3a5ab]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  22:     0x7ff886888380 - rustc_middle[b0c4fd38174bce7e]::util::bug::bug_fmt
  23:     0x7ff8864b3c08 - <rustc_const_eval[b104660bb5ced4cb]::interpret::eval_context::InterpCx<rustc_const_eval[b104660bb5ced4cb]::const_eval::machine::CompileTimeInterpreter>>::project_field::<rustc_const_eval[b104660bb5ced4cb]::interpret::operand::OpTy>
  24:     0x7ff8864b0551 - <rustc_const_eval[b104660bb5ced4cb]::interpret::validity::ValidityVisitor<rustc_const_eval[b104660bb5ced4cb]::const_eval::machine::CompileTimeInterpreter> as rustc_const_eval[b104660bb5ced4cb]::interpret::visitor::ValueVisitor<rustc_const_eval[b104660bb5ced4cb]::const_eval::machine::CompileTimeInterpreter>>::walk_value
  25:     0x7ff8862f1676 - <rustc_const_eval[b104660bb5ced4cb]::interpret::eval_context::InterpCx<rustc_const_eval[b104660bb5ced4cb]::const_eval::machine::CompileTimeInterpreter>>::validate_operand_internal
  26:     0x7ff887425915 - rustc_const_eval[b104660bb5ced4cb]::util::check_validity_requirement::check_validity_requirement
  27:     0x7ff887425564 - <rustc_const_eval[b104660bb5ced4cb]::provide::{closure#3} as core[14419025a21183a1]::ops::function::FnOnce<(rustc_middle[b0c4fd38174bce7e]::ty::context::TyCtxt, (rustc_middle[b0c4fd38174bce7e]::ty::layout::ValidityRequirement, rustc_middle[b0c4fd38174bce7e]::ty::ParamEnvAnd<rustc_middle[b0c4fd38174bce7e]::ty::Ty>))>>::call_once
  28:     0x7ff887258c32 - rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::check_validity_requirement::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 16usize]>>
  29:     0x7ff887258bf2 - <rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::check_validity_requirement::dynamic_query::{closure#2} as core[14419025a21183a1]::ops::function::FnOnce<(rustc_middle[b0c4fd38174bce7e]::ty::context::TyCtxt, (rustc_middle[b0c4fd38174bce7e]::ty::layout::ValidityRequirement, rustc_middle[b0c4fd38174bce7e]::ty::ParamEnvAnd<rustc_middle[b0c4fd38174bce7e]::ty::Ty>))>>::call_once
  30:     0x7ff8873ec5fb - rustc_query_system[bd77d5a6524fb1ee]::query::plumbing::try_execute_query::<rustc_query_impl[9e9aac2bcfc5a39e]::DynamicConfig<rustc_query_system[bd77d5a6524fb1ee]::query::caches::DefaultCache<(rustc_middle[b0c4fd38174bce7e]::ty::layout::ValidityRequirement, rustc_middle[b0c4fd38174bce7e]::ty::ParamEnvAnd<rustc_middle[b0c4fd38174bce7e]::ty::Ty>), rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::QueryCtxt, false>
  31:     0x7ff8873ec27e - rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::check_validity_requirement::get_query_non_incr::__rust_end_short_backtrace
  32:     0x7ff886d679d2 - <rustc_mir_transform[102926042b0adb92]::instsimplify::InstSimplify as rustc_middle[b0c4fd38174bce7e]::mir::MirPass>::run_pass
  33:     0x7ff886b24fdd - rustc_mir_transform[102926042b0adb92]::pass_manager::run_passes
  34:     0x7ff8871d39f7 - rustc_mir_transform[102926042b0adb92]::optimized_mir
  35:     0x7ff885eb6800 - rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::optimized_mir::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 8usize]>>
  36:     0x7ff885eb67c1 - <rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::optimized_mir::dynamic_query::{closure#2} as core[14419025a21183a1]::ops::function::FnOnce<(rustc_middle[b0c4fd38174bce7e]::ty::context::TyCtxt, rustc_span[a85072546ba3a5ab]::def_id::DefId)>>::call_once
  37:     0x7ff885e3b1b5 - rustc_query_system[bd77d5a6524fb1ee]::query::plumbing::try_execute_query::<rustc_query_impl[9e9aac2bcfc5a39e]::DynamicConfig<rustc_query_system[bd77d5a6524fb1ee]::query::caches::DefaultCache<rustc_span[a85072546ba3a5ab]::def_id::DefId, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::QueryCtxt, false>
  38:     0x7ff8876dc310 - rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::optimized_mir::get_query_non_incr::__rust_end_short_backtrace
  39:     0x7ff8885777e7 - rustc_middle[b0c4fd38174bce7e]::query::plumbing::query_get_at::<rustc_query_system[bd77d5a6524fb1ee]::query::caches::DefaultCache<rustc_span[a85072546ba3a5ab]::def_id::DefId, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 8usize]>>>
  40:     0x7ff88658bd6f - rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::unused_generic_params::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 4usize]>>
  41:     0x7ff8866b3421 - rustc_query_system[bd77d5a6524fb1ee]::query::plumbing::try_execute_query::<rustc_query_impl[9e9aac2bcfc5a39e]::DynamicConfig<rustc_query_system[bd77d5a6524fb1ee]::query::caches::DefaultCache<rustc_middle[b0c4fd38174bce7e]::ty::instance::InstanceDef, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 4usize]>>, false, false, false>, rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::QueryCtxt, false>
  42:     0x7ff8866b30c7 - rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::unused_generic_params::get_query_non_incr::__rust_end_short_backtrace
  43:     0x7ff887222164 - <rustc_session[f4a3fd7c44936466]::session::Session>::time::<(), rustc_interface[effa57ef6cdf43c8]::passes::analysis::{closure#2}>
  44:     0x7ff88721ee25 - rustc_interface[effa57ef6cdf43c8]::passes::analysis
  45:     0x7ff887279d2a - rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 1usize]>>
  46:     0x7ff887279d19 - <rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::analysis::dynamic_query::{closure#2} as core[14419025a21183a1]::ops::function::FnOnce<(rustc_middle[b0c4fd38174bce7e]::ty::context::TyCtxt, ())>>::call_once
  47:     0x7ff88742aa08 - rustc_query_system[bd77d5a6524fb1ee]::query::plumbing::try_execute_query::<rustc_query_impl[9e9aac2bcfc5a39e]::DynamicConfig<rustc_query_system[bd77d5a6524fb1ee]::query::caches::SingleCache<rustc_middle[b0c4fd38174bce7e]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[9e9aac2bcfc5a39e]::plumbing::QueryCtxt, false>
  48:     0x7ff88742a797 - rustc_query_impl[9e9aac2bcfc5a39e]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  49:     0x7ff8870057f5 - <rustc_middle[b0c4fd38174bce7e]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[4c3415319b4cba14]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>>
  50:     0x7ff887004e22 - <rustc_interface[effa57ef6cdf43c8]::interface::Compiler>::enter::<rustc_driver_impl[4c3415319b4cba14]::run_compiler::{closure#1}::{closure#2}, core[14419025a21183a1]::result::Result<core[14419025a21183a1]::option::Option<rustc_interface[effa57ef6cdf43c8]::queries::Linker>, rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>>
  51:     0x7ff886ffded8 - std[5080124dd0971100]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[effa57ef6cdf43c8]::util::run_in_thread_pool_with_globals<rustc_interface[effa57ef6cdf43c8]::interface::run_compiler<core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>, rustc_driver_impl[4c3415319b4cba14]::run_compiler::{closure#1}>::{closure#0}, core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>>
  52:     0x7ff886ffd65e - <<std[5080124dd0971100]::thread::Builder>::spawn_unchecked_<rustc_interface[effa57ef6cdf43c8]::util::run_in_thread_pool_with_globals<rustc_interface[effa57ef6cdf43c8]::interface::run_compiler<core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>, rustc_driver_impl[4c3415319b4cba14]::run_compiler::{closure#1}>::{closure#0}, core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[14419025a21183a1]::result::Result<(), rustc_span[a85072546ba3a5ab]::ErrorGuaranteed>>::{closure#1} as core[14419025a21183a1]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  53:     0x7ff884b70dc5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::heeee2b291a22389d
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/alloc/src/boxed.rs:2007:9
  54:     0x7ff884b70dc5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb0196af3fff8f8b5
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/alloc/src/boxed.rs:2007:9
  55:     0x7ff884b70dc5 - std::sys::unix::thread::Thread::new::thread_start::hbcdc2efff7ecdfed
                               at /rustc/500647fd8138cc09e87edb08d62f81654fbf6ef8/library/std/src/sys/unix/thread.rs:108:17
  56:     0x7ff8848c944b - <unknown>
  57:     0x7ff88494ce40 - <unknown>
  58:                0x0 - <unknown>

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 attach the file at `/home/matthias/vcs/github/glacier2/pile/rustc-ice-2023-07-28T20:48:26.790849438Z-984211.txt` to your bug report

note: compiler flags: -Z strict-init-checks=yes -Z polymorphize=on -Z mir-opt-level=3

query stack during panic:
#0 [check_validity_requirement] checking validity requirement for `Wrap<&T>`: allows being left zeroed
#1 [optimized_mir] optimizing MIR for `generic`
#2 [unused_generic_params] determining which generic parameters are unused by `generic`
#3 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to previous error; 7 warnings emitted

@matthiaskrgr matthiaskrgr added I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. C-bug Category: This is a bug. requires-nightly This issue requires a nightly compiler in some way. -Zpolymorphize Unstable option: Polymorphization. labels Jul 28, 2023
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jul 28, 2023
@matthiaskrgr
Copy link
Member Author

Regression in nightly-2023-04-22
Regression in fa4cc63
#110107 cc @cjgillot

@saethlin saethlin removed the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jul 29, 2023
@matthiaskrgr matthiaskrgr added the E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. label Apr 19, 2024
@matthiaskrgr
Copy link
Member Author

ice again due to #126578

@matthiaskrgr matthiaskrgr removed the E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. label Jun 21, 2024
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
-Zpolymorphize Unstable option: Polymorphization. C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
3 participants
@matthiaskrgr @saethlin @rustbot