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ICE: mir_build: no entry found for key #125676

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matthiaskrgr opened this issue May 28, 2024 · 2 comments · Fixed by #125705
Closed

ICE: mir_build: no entry found for key #125676

matthiaskrgr opened this issue May 28, 2024 · 2 comments · Fixed by #125705
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@oli-obk
Labels
C-bug Category: This is a bug. F-inline_const Inline constants (aka: const blocks, const expressions, anonymous constants) 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.

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@matthiaskrgr
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auto-reduced (treereduce-rust):

const fn test_me<T>(a: usize, b: usize) -> usize {
    const {
        if a < b {
            std::mem::size_of::<T>()
        } else {
            usize::MAX
        }
    }
}

original:

// run-pass
#![feature(generic_const_exprs)]
#![allow(incomplete_features)]

const fn test_me<T>(a: usize, b: usize) -> usize {
    const {if a < b {
        std::mem::size_of::<T>()
    } else {
        usize::MAX
    }}
}

fn test_simple<T>() -> [u8; std::mem::size_of::<T>()]
where
    [u8; std::mem::size_of::<T>()]: Sized,
{
    [0; std::mem::size_of::<T>()]
}

fn test_with_args<T, const N: usize>() -> [u8; test_me::<T>(N, N + 1) + N]
where
    [u8; test_me::<T>(N, N + 1) + N]: Sized,
{
    [0; test_me::<T>(N, N + 1) + N]
}

fn main() {
    assert_eq!([0; 8], test_simple::<u64>());
    assert_eq!([0; 12], test_with_args::<u64, 4>());
}

Version information

rustc 1.80.0-nightly (7717a306b 2024-05-28)
binary: rustc
commit-hash: 7717a306b2678ba9ece19b723c76a6b3a89ba931
commit-date: 2024-05-28
host: x86_64-unknown-linux-gnu
release: 1.80.0-nightly
LLVM version: 18.1.6

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

Program output 

error[E0601]: `main` function not found in crate `mvce`
 --> /tmp/icemaker_global_tempdir.3Yltk13HQO49/rustc_testrunner_tmpdir_reporting.RrAAdGe4inOX/mvce.rs:9:2
  |
9 | }
  |  ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.3Yltk13HQO49/rustc_testrunner_tmpdir_reporting.RrAAdGe4inOX/mvce.rs`

thread 'rustc' panicked at compiler/rustc_mir_build/src/build/mod.rs:241:25:
no entry found for key
stack backtrace:
   0:     0x7f7bf17b9ae5 - std::backtrace_rs::backtrace::libunwind::trace::h8e3ec5065424d28b
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x7f7bf17b9ae5 - std::backtrace_rs::backtrace::trace_unsynchronized::h882cf49e59475dbc
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f7bf17b9ae5 - std::sys_common::backtrace::_print_fmt::h2c337a2c4b83dc01
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7f7bf17b9ae5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5fad958b7140a660
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f7bf180a5db - core::fmt::rt::Argument::fmt::h9f1efa968e340ff7
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/core/src/fmt/rt.rs:165:63
   5:     0x7f7bf180a5db - core::fmt::write::hc4341e028d4aa04e
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/core/src/fmt/mod.rs:1168:21
   6:     0x7f7bf17ae86f - std::io::Write::write_fmt::hf3dd4197197b5730
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/io/mod.rs:1835:15
   7:     0x7f7bf17b98be - std::sys_common::backtrace::_print::hee589e8f95e333af
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f7bf17b98be - std::sys_common::backtrace::print::hc6a85e053c1c7334
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f7bf17bc2e9 - std::panicking::default_hook::{{closure}}::he62a1676f96fee54
  10:     0x7f7bf17bc08a - std::panicking::default_hook::h2ceb904f12dea8be
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/panicking.rs:298:9
  11:     0x7f7bedf8e6a0 - std[d6c1f98fb4e95ff7]::panicking::update_hook::<alloc[78b6f7e6bd40c475]::boxed::Box<rustc_driver_impl[c511ea10b869fcf7]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7f7bf17bca1b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc5b72f85a4688529
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/alloc/src/boxed.rs:2077:9
  13:     0x7f7bf17bca1b - std::panicking::rust_panic_with_hook::h0a690364d46daaac
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/panicking.rs:799:13
  14:     0x7f7bf17bc794 - std::panicking::begin_panic_handler::{{closure}}::h9c10c03249dd0030
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/panicking.rs:664:13
  15:     0x7f7bf17b9fa9 - std::sys_common::backtrace::__rust_end_short_backtrace::h599802efea5774a9
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/sys_common/backtrace.rs:171:18
  16:     0x7f7bf17bc4c7 - rust_begin_unwind
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/panicking.rs:652:5
  17:     0x7f7bf1806b73 - core::panicking::panic_fmt::h16f8f3f4aae78ff5
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/core/src/panicking.rs:72:14
  18:     0x7f7bf180691b - core::panicking::panic_display::hd37bbef51df3a6ae
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/core/src/panicking.rs:262:5
  19:     0x7f7bf180691b - core::option::expect_failed::hded3cd93e8782a18
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/core/src/option.rs:1997:5
  20:     0x7f7bef69ce93 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_as_place
  21:     0x7f7bef69e59d - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_into_dest
  22:     0x7f7bef6961ea - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::as_temp::{closure#0}
  23:     0x7f7bef692330 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::as_operand
  24:     0x7f7bef692009 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::as_operand
  25:     0x7f7bef6939ed - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::as_rvalue
  26:     0x7f7bef69d964 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_into_dest
  27:     0x7f7bef6961ea - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::as_temp::{closure#0}
  28:     0x7f7bf045225f - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::then_else_break_inner
  29:     0x7f7bf04525c4 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::then_else_break_inner
  30:     0x7f7bf04525c4 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::then_else_break_inner
  31:     0x7f7bef6a021e - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_into_dest
  32:     0x7f7bef69f972 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_into_dest
  33:     0x7f7befef615c - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::ast_block_stmts
  34:     0x7f7befef507b - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::ast_block
  35:     0x7f7bef69e558 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_into_dest
  36:     0x7f7bef69f972 - <rustc_mir_build[9415bcb3f6b13a09]::build::Builder>::expr_into_dest
  37:     0x7f7bef67481e - rustc_mir_build[9415bcb3f6b13a09]::build::mir_build
  38:     0x7f7bef6712ce - rustc_query_impl[a43b8a3fae63a645]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a43b8a3fae63a645]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b8101328ceeb956a]::query::erase::Erased<[u8; 8usize]>>
  39:     0x7f7bef5c212e - rustc_query_system[ef4de90281b6d444]::query::plumbing::try_execute_query::<rustc_query_impl[a43b8a3fae63a645]::DynamicConfig<rustc_query_system[ef4de90281b6d444]::query::caches::VecCache<rustc_span[8ae10af61471f323]::def_id::LocalDefId, rustc_middle[b8101328ceeb956a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[a43b8a3fae63a645]::plumbing::QueryCtxt, false>
  40:     0x7f7bef5c1c4d - rustc_query_impl[a43b8a3fae63a645]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
  41:     0x7f7bef6657b0 - <rustc_mir_build[9415bcb3f6b13a09]::check_unsafety::UnsafetyVisitor>::visit_inner_body
  42:     0x7f7bec8a0d44 - <rustc_mir_build[9415bcb3f6b13a09]::check_unsafety::UnsafetyVisitor as rustc_middle[b8101328ceeb956a]::thir::visit::Visitor>::visit_expr
  43:     0x7f7bec8a2054 - <rustc_mir_build[9415bcb3f6b13a09]::check_unsafety::UnsafetyVisitor as rustc_middle[b8101328ceeb956a]::thir::visit::Visitor>::visit_expr
  44:     0x7f7bec8a0d44 - <rustc_mir_build[9415bcb3f6b13a09]::check_unsafety::UnsafetyVisitor as rustc_middle[b8101328ceeb956a]::thir::visit::Visitor>::visit_expr
  45:     0x7f7bef662a24 - rustc_mir_build[9415bcb3f6b13a09]::check_unsafety::check_unsafety
  46:     0x7f7bef6624c7 - rustc_query_impl[a43b8a3fae63a645]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a43b8a3fae63a645]::query_impl::check_unsafety::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b8101328ceeb956a]::query::erase::Erased<[u8; 0usize]>>
  47:     0x7f7bef6615d4 - rustc_query_system[ef4de90281b6d444]::query::plumbing::try_execute_query::<rustc_query_impl[a43b8a3fae63a645]::DynamicConfig<rustc_query_system[ef4de90281b6d444]::query::caches::VecCache<rustc_span[8ae10af61471f323]::def_id::LocalDefId, rustc_middle[b8101328ceeb956a]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[a43b8a3fae63a645]::plumbing::QueryCtxt, false>
  48:     0x7f7bef661207 - rustc_query_impl[a43b8a3fae63a645]::query_impl::check_unsafety::get_query_non_incr::__rust_end_short_backtrace
  49:     0x7f7befd68e5b - rustc_interface[3320d9bec8b3433a]::passes::analysis
  50:     0x7f7befd67f5b - rustc_query_impl[a43b8a3fae63a645]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a43b8a3fae63a645]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[b8101328ceeb956a]::query::erase::Erased<[u8; 1usize]>>
  51:     0x7f7bf019c225 - rustc_query_system[ef4de90281b6d444]::query::plumbing::try_execute_query::<rustc_query_impl[a43b8a3fae63a645]::DynamicConfig<rustc_query_system[ef4de90281b6d444]::query::caches::SingleCache<rustc_middle[b8101328ceeb956a]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[a43b8a3fae63a645]::plumbing::QueryCtxt, false>
  52:     0x7f7bf019bf8f - rustc_query_impl[a43b8a3fae63a645]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  53:     0x7f7befff9f5c - rustc_interface[3320d9bec8b3433a]::interface::run_compiler::<core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>, rustc_driver_impl[c511ea10b869fcf7]::run_compiler::{closure#0}>::{closure#1}
  54:     0x7f7beffc0609 - std[d6c1f98fb4e95ff7]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[3320d9bec8b3433a]::util::run_in_thread_with_globals<rustc_interface[3320d9bec8b3433a]::util::run_in_thread_pool_with_globals<rustc_interface[3320d9bec8b3433a]::interface::run_compiler<core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>, rustc_driver_impl[c511ea10b869fcf7]::run_compiler::{closure#0}>::{closure#1}, core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>>::{closure#0}, core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>>
  55:     0x7f7beffc03b2 - <<std[d6c1f98fb4e95ff7]::thread::Builder>::spawn_unchecked_<rustc_interface[3320d9bec8b3433a]::util::run_in_thread_with_globals<rustc_interface[3320d9bec8b3433a]::util::run_in_thread_pool_with_globals<rustc_interface[3320d9bec8b3433a]::interface::run_compiler<core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>, rustc_driver_impl[c511ea10b869fcf7]::run_compiler::{closure#0}>::{closure#1}, core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>>::{closure#0}, core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[5e8023d66ded8339]::result::Result<(), rustc_span[8ae10af61471f323]::ErrorGuaranteed>>::{closure#2} as core[5e8023d66ded8339]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  56:     0x7f7bf17c69eb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha3f12f701ab217ba
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/alloc/src/boxed.rs:2063:9
  57:     0x7f7bf17c69eb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbabc732018734ba3
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/alloc/src/boxed.rs:2063:9
  58:     0x7f7bf17c69eb - std::sys::pal::unix::thread::Thread::new::thread_start::h25b845304e0b166b
                               at /rustc/7717a306b2678ba9ece19b723c76a6b3a89ba931/library/std/src/sys/pal/unix/thread.rs:108:17
  59:     0x7f7bf15621cf - <unknown>
  60:     0x7f7bf15e36ec - <unknown>
  61:                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: please make sure that you have updated to the latest nightly

note: rustc 1.80.0-nightly (7717a306b 2024-05-28) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [mir_built] building MIR for `test_me::{constant#0}`
#1 [check_unsafety] unsafety-checking `test_me`
end of query stack
error: aborting due to 1 previous error

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

@rustbot label +F-generic_const_exprs
@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. labels May 28, 2024
@rustbot rustbot added needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. F-generic_const_exprs `#![feature(generic_const_exprs)]` labels May 28, 2024
@lqd
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lqd commented May 28, 2024 •
edited
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Huhu, the master artifacts -v is super confusing since the nightly date is incorrect 😅 I don't think cargo-bisect-rustc would work on that. Anyway it's #124650 ofc, nothing much else has landed since the nightly was cut.

@rustbot label -F-generic_const_exprs +F-inline_const

@rustbot rustbot added F-inline_const Inline constants (aka: const blocks, const expressions, anonymous constants) and removed F-generic_const_exprs `#![feature(generic_const_exprs)]` labels May 28, 2024
@matthiaskrgr
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ah, I would just look at the commit hash given by rustc 😅

@oli-obk oli-obk self-assigned this May 28, 2024
@oli-obk oli-obk mentioned this issue May 29, 2024
Merged
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this issue May 29, 2024
@matthiaskrgr
Rollup merge of rust-lang#125705 - oli-obk:const_block_ice, r=compile…
b8e3faa 
…r-errors

Reintroduce name resolution check for trying to access locals from an inline const

fixes rust-lang#125676

I removed this without replacement in rust-lang#124650 without considering the consequences
@bors bors closed this as completed in c09b89e May 29, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this issue May 29, 2024
@rust-timer
Unrolled build for rust-lang#125705
cfab26c 
Rollup merge of rust-lang#125705 - oli-obk:const_block_ice, r=compiler-errors

Reintroduce name resolution check for trying to access locals from an inline const

fixes rust-lang#125676

I removed this without replacement in rust-lang#124650 without considering the consequences
@saethlin saethlin removed the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label May 30, 2024
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@oli-obk oli-obk

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C-bug Category: This is a bug. F-inline_const Inline constants (aka: const blocks, const expressions, anonymous constants) 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.
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Reintroduce name resolution check for trying to access locals from an inline const oli-obk/rust
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@lqd @oli-obk @matthiaskrgr @saethlin @rustbot