ICE: Invalid float op Neg

[matthiaskrgr]

snippet:

fn main() {
    let _ = -(-0.0f16);
}

Version information

rustc 1.80.0-nightly (378a43a06 2024-05-01)
binary: rustc
commit-hash: 378a43a06510f3e3a49c69c8de71745e6a884048
commit-date: 2024-05-01
host: x86_64-unknown-linux-gnu
release: 1.80.0-nightly
LLVM version: 18.1.4

Command:
/home/matthias/.rustup/toolchains/master/bin/rustc

Program output

error[E0658]: the type `f16` is unstable
 --> /tmp/icemaker_global_tempdir.LUs0yTDS2O3R/rustc_testrunner_tmpdir_reporting.laee65vXPGyd/mvce.rs:2:16
  |
2 |     let _ = -(-0.0f16);
  |                ^^^^^^
  |
  = note: see issue #116909 <https://github.com/rust-lang/rust/issues/116909> for more information
  = help: add `#![feature(f16)]` to the crate attributes to enable
  = note: this compiler was built on 2024-05-01; consider upgrading it if it is out of date

error: internal compiler error: /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/compiler/rustc_const_eval/src/interpret/operator.rs:498:26: Invalid float op Neg
 --> /tmp/icemaker_global_tempdir.LUs0yTDS2O3R/rustc_testrunner_tmpdir_reporting.laee65vXPGyd/mvce.rs:1:1
  |
1 | fn main() {
  | ^^^^^^^^^

thread 'rustc' panicked at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/compiler/rustc_const_eval/src/interpret/operator.rs:498:26:
Box<dyn Any>
stack backtrace:
   0:     0x75fcab3ba035 - std::backtrace_rs::backtrace::libunwind::trace::hda47b82a166812ce
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
   1:     0x75fcab3ba035 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdfc54f1e69a0c51
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x75fcab3ba035 - std::sys_common::backtrace::_print_fmt::h793b3f7571d13dfd
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x75fcab3ba035 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hbc9f1fbbb950dc64
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x75fcab40929b - core::fmt::rt::Argument::fmt::h616c7e5e48e69035
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/core/src/fmt/rt.rs:165:63
   5:     0x75fcab40929b - core::fmt::write::h273cb7cce9dfa202
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/core/src/fmt/mod.rs:1157:21
   6:     0x75fcab3aebdf - std::io::Write::write_fmt::h945d30311b10e894
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/io/mod.rs:1832:15
   7:     0x75fcab3b9e0e - std::sys_common::backtrace::_print::hcdebe37872d00154
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x75fcab3b9e0e - std::sys_common::backtrace::print::h51bd45a216cc9df6
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x75fcab3bc779 - std::panicking::default_hook::{{closure}}::hb6bc4eb0d96a4bfd
  10:     0x75fcab3bc4bd - std::panicking::default_hook::h557ff9f57d861b48
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/panicking.rs:298:9
  11:     0x75fca7c3c6bb - std[8fa947ca3cb89c52]::panicking::update_hook::<alloc[4c35cc17dd12f569]::boxed::Box<rustc_driver_impl[f52ddb602ce7d3c0]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x75fcab3bce76 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hf5d9c19b8a775637
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/alloc/src/boxed.rs:2036:9
  13:     0x75fcab3bce76 - std::panicking::rust_panic_with_hook::h310a921a123719cf
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/panicking.rs:799:13
  14:     0x75fca7c6c084 - std[8fa947ca3cb89c52]::panicking::begin_panic::<rustc_errors[dbe3df606ebeeaa3]::ExplicitBug>::{closure#0}
  15:     0x75fca7c68d06 - std[8fa947ca3cb89c52]::sys_common::backtrace::__rust_end_short_backtrace::<std[8fa947ca3cb89c52]::panicking::begin_panic<rustc_errors[dbe3df606ebeeaa3]::ExplicitBug>::{closure#0}, !>
  16:     0x75fca7c689e6 - std[8fa947ca3cb89c52]::panicking::begin_panic::<rustc_errors[dbe3df606ebeeaa3]::ExplicitBug>
  17:     0x75fca7c75261 - <rustc_errors[dbe3df606ebeeaa3]::diagnostic::BugAbort as rustc_errors[dbe3df606ebeeaa3]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  18:     0x75fca822e208 - <rustc_errors[dbe3df606ebeeaa3]::DiagCtxt>::span_bug::<rustc_span[28b37812f336c7b5]::span_encoding::Span, alloc[4c35cc17dd12f569]::string::String>
  19:     0x75fca824f6bd - rustc_middle[ec0047e274fe25be]::util::bug::opt_span_bug_fmt::<rustc_span[28b37812f336c7b5]::span_encoding::Span>::{closure#0}
  20:     0x75fca824f6ea - rustc_middle[ec0047e274fe25be]::ty::context::tls::with_opt::<rustc_middle[ec0047e274fe25be]::util::bug::opt_span_bug_fmt<rustc_span[28b37812f336c7b5]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  21:     0x75fca824874b - rustc_middle[ec0047e274fe25be]::ty::context::tls::with_context_opt::<rustc_middle[ec0047e274fe25be]::ty::context::tls::with_opt<rustc_middle[ec0047e274fe25be]::util::bug::opt_span_bug_fmt<rustc_span[28b37812f336c7b5]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  22:     0x75fca8247f67 - rustc_middle[ec0047e274fe25be]::util::bug::span_bug_fmt::<rustc_span[28b37812f336c7b5]::span_encoding::Span>
  23:     0x75fcaa92bdef - <rustc_const_eval[c0dfeea2f3bf4919]::interpret::eval_context::InterpCx<rustc_const_eval[c0dfeea2f3bf4919]::const_eval::dummy_machine::DummyMachine>>::overflowing_unary_op.cold
  24:     0x75fca67bda02 - <rustc_mir_transform[61a8aa7cac63b4d6]::known_panics_lint::ConstPropagator as rustc_middle[ec0047e274fe25be]::mir::visit::Visitor>::visit_assign
  25:     0x75fca993d83d - <rustc_mir_transform[61a8aa7cac63b4d6]::known_panics_lint::ConstPropagator as rustc_middle[ec0047e274fe25be]::mir::visit::Visitor>::visit_body
  26:     0x75fca6999566 - <rustc_mir_transform[61a8aa7cac63b4d6]::known_panics_lint::KnownPanicsLint as rustc_mir_transform[61a8aa7cac63b4d6]::pass_manager::MirLint>::run_lint
  27:     0x75fca90018cd - rustc_mir_transform[61a8aa7cac63b4d6]::pass_manager::run_passes_inner
  28:     0x75fca9395d42 - rustc_mir_transform[61a8aa7cac63b4d6]::mir_drops_elaborated_and_const_checked
  29:     0x75fca93955fd - rustc_query_impl[1888158ad4449b9b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[1888158ad4449b9b]::query_impl::mir_drops_elaborated_and_const_checked::dynamic_query::{closure#2}::{closure#0}, rustc_middle[ec0047e274fe25be]::query::erase::Erased<[u8; 8usize]>>
  30:     0x75fca938d171 - rustc_query_system[b5ee5054546adc93]::query::plumbing::try_execute_query::<rustc_query_impl[1888158ad4449b9b]::DynamicConfig<rustc_query_system[b5ee5054546adc93]::query::caches::VecCache<rustc_span[28b37812f336c7b5]::def_id::LocalDefId, rustc_middle[ec0047e274fe25be]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[1888158ad4449b9b]::plumbing::QueryCtxt, false>
  31:     0x75fca938cb2a - rustc_query_impl[1888158ad4449b9b]::query_impl::mir_drops_elaborated_and_const_checked::get_query_non_incr::__rust_end_short_backtrace
  32:     0x75fca936cff9 - rustc_interface[e7d426f81a3c67f]::passes::analysis
  33:     0x75fca936bddb - rustc_query_impl[1888158ad4449b9b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[1888158ad4449b9b]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[ec0047e274fe25be]::query::erase::Erased<[u8; 1usize]>>
  34:     0x75fca9dfb4e5 - rustc_query_system[b5ee5054546adc93]::query::plumbing::try_execute_query::<rustc_query_impl[1888158ad4449b9b]::DynamicConfig<rustc_query_system[b5ee5054546adc93]::query::caches::SingleCache<rustc_middle[ec0047e274fe25be]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[1888158ad4449b9b]::plumbing::QueryCtxt, false>
  35:     0x75fca9dfb249 - rustc_query_impl[1888158ad4449b9b]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  36:     0x75fca9c675ce - rustc_interface[e7d426f81a3c67f]::interface::run_compiler::<core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>, rustc_driver_impl[f52ddb602ce7d3c0]::run_compiler::{closure#0}>::{closure#1}
  37:     0x75fca9c54167 - std[8fa947ca3cb89c52]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[e7d426f81a3c67f]::util::run_in_thread_with_globals<rustc_interface[e7d426f81a3c67f]::util::run_in_thread_pool_with_globals<rustc_interface[e7d426f81a3c67f]::interface::run_compiler<core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>, rustc_driver_impl[f52ddb602ce7d3c0]::run_compiler::{closure#0}>::{closure#1}, core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>>::{closure#0}, core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>>
  38:     0x75fca9c53f2a - <<std[8fa947ca3cb89c52]::thread::Builder>::spawn_unchecked_<rustc_interface[e7d426f81a3c67f]::util::run_in_thread_with_globals<rustc_interface[e7d426f81a3c67f]::util::run_in_thread_pool_with_globals<rustc_interface[e7d426f81a3c67f]::interface::run_compiler<core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>, rustc_driver_impl[f52ddb602ce7d3c0]::run_compiler::{closure#0}>::{closure#1}, core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>>::{closure#0}, core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[19fe836d650da945]::result::Result<(), rustc_span[28b37812f336c7b5]::ErrorGuaranteed>>::{closure#2} as core[19fe836d650da945]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  39:     0x75fcab3c6cab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h32bd23449113524a
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/alloc/src/boxed.rs:2022:9
  40:     0x75fcab3c6cab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h04c486968e15e63c
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/alloc/src/boxed.rs:2022:9
  41:     0x75fcab3c6cab - std::sys::pal::unix::thread::Thread::new::thread_start::ha93fdc6af5a412fe
                               at /rustc/378a43a06510f3e3a49c69c8de71745e6a884048/library/std/src/sys/pal/unix/thread.rs:108:17
  42:     0x75fcab16555a - <unknown>
  43:     0x75fcab1e2a3c - <unknown>
  44:                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 make sure that you have updated to the latest nightly

note: rustc 1.80.0-nightly (378a43a06 2024-05-01) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [mir_drops_elaborated_and_const_checked] elaborating drops for `main`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.

[tgross35]

Another thing waiting on const eval, like #122587

@rustbot claim
@rustbot label +requires-incomplete-features +S-bug-has-test +S-has-mcve -needs-triage

[rustbot]

Error: Parsing assign command in comment failed: ...' claim' | error: expected end of command at >| ' label +re'...

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