ice: transmute_generic_consts: Size::bits ... bytes in bits doesn't fit in u64

[matthiaskrgr]

Code

#![feature(transmute_generic_consts)]

fn overflow(v: [[[u32; 8888888]; 9999999]; 777777777]) -> [[[u32; 9999999]; 777777777]; 239] {
    unsafe { std::mem::transmute(v) }
}

Meta

rustc --version --verbose:

rustc 1.72.0-nightly (43062c43d 2023-06-09)
binary: rustc
commit-hash: 43062c43d2a63cf4e261c6eddc417575c4f3062f
commit-date: 2023-06-09
host: x86_64-unknown-linux-gnu
release: 1.72.0-nightly
LLVM version: 16.0.5

Error output

<output>

Backtrace

thread 'rustc' panicked at 'Size::bits: 7435554804564445188 bytes in bits doesn't fit in u64', compiler/rustc_abi/src/lib.rs:459:13
stack backtrace:
   0:     0x7f5bc7568c41 - trace
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f5bc7568c41 - trace_unsynchronized<std::sys_common::backtrace::_print_fmt::{closure_env#1}>
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f5bc7568c41 - _print_fmt
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f5bc7568c41 - fmt
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f5bc75c95ff - fmt
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/core/src/fmt/rt.rs:138:9
   5:     0x7f5bc75c95ff - write
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/core/src/fmt/mod.rs:1094:21
   6:     0x7f5bc755bee1 - write_fmt<std::sys::unix::stdio::Stderr>
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/io/mod.rs:1713:15
   7:     0x7f5bc7568a55 - _print
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f5bc7568a55 - print
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f5bc756b737 - {closure#1}
  10:     0x7f5bc756b524 - default_hook
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/panicking.rs:288:9
  11:     0x7f5bca7e4ceb - rustc_driver_impl[d0821492cae6a3a8]::install_ice_hook::{closure#0}
  12:     0x7f5bc756be7d - call<(&core::panic::panic_info::PanicInfo), (dyn core::ops::function::Fn<(&core::panic::panic_info::PanicInfo), Output=()> + core::marker::Send + core::marker::Sync), alloc::alloc::Global>
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/alloc/src/boxed.rs:1999:9
  13:     0x7f5bc756be7d - rust_panic_with_hook
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/panicking.rs:709:13
  14:     0x7f5bc756bc17 - {closure#0}
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/panicking.rs:597:13
  15:     0x7f5bc7569076 - __rust_end_short_backtrace<std::panicking::begin_panic_handler::{closure_env#0}, !>
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/sys_common/backtrace.rs:151:18
  16:     0x7f5bc756b962 - begin_panic_handler
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/panicking.rs:593:5
  17:     0x7f5bc75c5883 - panic_fmt
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/core/src/panicking.rs:67:14
  18:     0x7f5bca39ac85 - <rustc_abi[8dc2c2c062e45bd0]::Size>::bits::overflow
  19:     0x7f5bca97d1e5 - <rustc_hir_typeck[540acb189a8d256b]::fn_ctxt::FnCtxt>::check_transmute::{closure#2}
  20:     0x7f5bc9db7ae6 - <rustc_hir_typeck[540acb189a8d256b]::fn_ctxt::FnCtxt>::check_transmute
  21:     0x7f5bc9292a54 - rustc_hir_typeck[540acb189a8d256b]::typeck
  22:     0x7f5bc8826d0e - rustc_query_impl[ead61cf3be1d21dc]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ead61cf3be1d21dc]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5f3e0edc8316c59d]::query::erase::Erased<[u8; 8usize]>>
  23:     0x7f5bc8826cde - <rustc_query_impl[ead61cf3be1d21dc]::query_impl::typeck::dynamic_query::{closure#2} as core[d3915b1385eeee84]::ops::function::FnOnce<(rustc_middle[5f3e0edc8316c59d]::ty::context::TyCtxt, rustc_span[8dceba2d8f32b518]::def_id::LocalDefId)>>::call_once
  24:     0x7f5bc88ef70d - rustc_query_system[b1cad9b13541f961]::query::plumbing::try_execute_query::<rustc_query_impl[ead61cf3be1d21dc]::DynamicConfig<rustc_query_system[b1cad9b13541f961]::query::caches::VecCache<rustc_span[8dceba2d8f32b518]::def_id::LocalDefId, rustc_middle[5f3e0edc8316c59d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ead61cf3be1d21dc]::plumbing::QueryCtxt, false>
  25:     0x7f5bca164eb1 - rustc_query_impl[ead61cf3be1d21dc]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
  26:     0x7f5bc892924d - rustc_query_impl[ead61cf3be1d21dc]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ead61cf3be1d21dc]::query_impl::used_trait_imports::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5f3e0edc8316c59d]::query::erase::Erased<[u8; 8usize]>>
  27:     0x7f5bc89291ae - <rustc_query_impl[ead61cf3be1d21dc]::query_impl::used_trait_imports::dynamic_query::{closure#2} as core[d3915b1385eeee84]::ops::function::FnOnce<(rustc_middle[5f3e0edc8316c59d]::ty::context::TyCtxt, rustc_span[8dceba2d8f32b518]::def_id::LocalDefId)>>::call_once
  28:     0x7f5bc88ef70d - rustc_query_system[b1cad9b13541f961]::query::plumbing::try_execute_query::<rustc_query_impl[ead61cf3be1d21dc]::DynamicConfig<rustc_query_system[b1cad9b13541f961]::query::caches::VecCache<rustc_span[8dceba2d8f32b518]::def_id::LocalDefId, rustc_middle[5f3e0edc8316c59d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[ead61cf3be1d21dc]::plumbing::QueryCtxt, false>
  29:     0x7f5bca164fb1 - rustc_query_impl[ead61cf3be1d21dc]::query_impl::used_trait_imports::get_query_non_incr::__rust_end_short_backtrace
  30:     0x7f5bc9c7e184 - rustc_hir_analysis[893db6da0ea67cd6]::check_crate
  31:     0x7f5bc9c78d2d - rustc_interface[5db37c687d653f71]::passes::analysis
  32:     0x7f5bc9d0130a - rustc_query_impl[ead61cf3be1d21dc]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ead61cf3be1d21dc]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5f3e0edc8316c59d]::query::erase::Erased<[u8; 1usize]>>
  33:     0x7f5bc9d012f9 - <rustc_query_impl[ead61cf3be1d21dc]::query_impl::analysis::dynamic_query::{closure#2} as core[d3915b1385eeee84]::ops::function::FnOnce<(rustc_middle[5f3e0edc8316c59d]::ty::context::TyCtxt, ())>>::call_once
  34:     0x7f5bc9e7f728 - rustc_query_system[b1cad9b13541f961]::query::plumbing::try_execute_query::<rustc_query_impl[ead61cf3be1d21dc]::DynamicConfig<rustc_query_system[b1cad9b13541f961]::query::caches::SingleCache<rustc_middle[5f3e0edc8316c59d]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[ead61cf3be1d21dc]::plumbing::QueryCtxt, false>
  35:     0x7f5bc9e7f4f9 - rustc_query_impl[ead61cf3be1d21dc]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  36:     0x7f5bc9e583b5 - <rustc_middle[5f3e0edc8316c59d]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[d0821492cae6a3a8]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>
  37:     0x7f5bc9aa83bf - <rustc_interface[5db37c687d653f71]::interface::Compiler>::enter::<rustc_driver_impl[d0821492cae6a3a8]::run_compiler::{closure#1}::{closure#2}, core[d3915b1385eeee84]::result::Result<core[d3915b1385eeee84]::option::Option<rustc_interface[5db37c687d653f71]::queries::Linker>, rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>
  38:     0x7f5bc9aa5f59 - <scoped_tls[db132b8948264e24]::ScopedKey<rustc_span[8dceba2d8f32b518]::SessionGlobals>>::set::<rustc_interface[5db37c687d653f71]::interface::run_compiler<core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>, rustc_driver_impl[d0821492cae6a3a8]::run_compiler::{closure#1}>::{closure#0}, core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>
  39:     0x7f5bc9aa53c6 - std[30357d997d387a25]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[5db37c687d653f71]::util::run_in_thread_pool_with_globals<rustc_interface[5db37c687d653f71]::interface::run_compiler<core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>, rustc_driver_impl[d0821492cae6a3a8]::run_compiler::{closure#1}>::{closure#0}, core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>
  40:     0x7f5bc9aa5175 - <<std[30357d997d387a25]::thread::Builder>::spawn_unchecked_<rustc_interface[5db37c687d653f71]::util::run_in_thread_pool_with_globals<rustc_interface[5db37c687d653f71]::interface::run_compiler<core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>, rustc_driver_impl[d0821492cae6a3a8]::run_compiler::{closure#1}>::{closure#0}, core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d3915b1385eeee84]::result::Result<(), rustc_span[8dceba2d8f32b518]::ErrorGuaranteed>>::{closure#1} as core[d3915b1385eeee84]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  41:     0x7f5bc75763a5 - call_once<(), dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/alloc/src/boxed.rs:1985:9
  42:     0x7f5bc75763a5 - call_once<(), alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>, alloc::alloc::Global>
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/alloc/src/boxed.rs:1985:9
  43:     0x7f5bc75763a5 - thread_start
                               at /rustc/43062c43d2a63cf4e261c6eddc417575c4f3062f/library/std/src/sys/unix/thread.rs:108:17
  44:     0x7f5bc730f44b - <unknown>
  45:     0x7f5bc7392e40 - <unknown>
  46:                0x0 - <unknown>

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: rustc 1.72.0-nightly (43062c43d 2023-06-09) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [typeck] type-checking `overflow`
#1 [used_trait_imports] finding used_trait_imports `overflow`
#2 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to previous error

For more information about this error, try `rustc --explain E0601`.

[matthiaskrgr]

Caused by #106281