Repository navigation
ICE: hir: index out of bounds: the len is 5 but the index is 5 #122399
Description
auto-reduced (treereduce-rust):
static mut TEST2: &'static mut [i32] = &mut [0, 1, 2];
fn main() {}
original: (tests/ui/consts/promotion-mutable-ref.rs)
//@ run-pass
#![feature(const_mut_refs)]
static mut TEST: i32 = {
// We must not promote this, as CTFE needs to be able to mutate it later.
let x = &mut [1,2,3];
x[0] += 1;
x[0]
};
// This still works -- it's not done via promotion.
#[allow(unused)]
static mut TEST2: &'static mut [i32] = &mut [0,1,2];
fn main() {
assert_eq!(unsafe { TEST }, 2);
}Version information
rustc 1.78.0-nightly (7de1a1f6d 2024-03-12)
binary: rustc
commit-hash: 7de1a1f6db26cf7af43cca74819118428e6317ee
commit-date: 2024-03-12
host: x86_64-unknown-linux-gnu
release: 1.78.0-nightly
LLVM version: 18.1.0
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc -Zcodegen-backend=cranelift
Program output
warning: static `TEST2` is never used
--> /tmp/icemaker_global_tempdir.VX9jN0SNTvXS/rustc_testrunner_tmpdir_reporting.oNybMUzdaDH5/mvce.rs:1:12
|
1 | static mut TEST2: &'static mut [i32] = &mut [0, 1, 2];
| ^^^^^
|
= note: `#[warn(dead_code)]` on by default
thread 'rustc' panicked at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/compiler/rustc_middle/src/hir/mod.rs:131:44:
index out of bounds: the len is 5 but the index is 5
stack backtrace:
0: 0x7f4e5964f6f2 - std::backtrace_rs::backtrace::libunwind::trace::h88547ccd0750bcc5
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
1: 0x7f4e5964f6f2 - std::backtrace_rs::backtrace::trace_unsynchronized::hc14f662a9b0401aa
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f4e5964f6f2 - std::sys_common::backtrace::_print_fmt::h07146244765e2a09
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7f4e5964f6f2 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5c8264a9859d052b
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f4e596a07fc - core::fmt::rt::Argument::fmt::h9ca9e08086b797e7
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/core/src/fmt/rt.rs:142:9
5: 0x7f4e596a07fc - core::fmt::write::h8b40f2214bb14880
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/core/src/fmt/mod.rs:1153:17
6: 0x7f4e5964414f - std::io::Write::write_fmt::h02aeae87b3e9139f
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/io/mod.rs:1843:15
7: 0x7f4e5964f4c4 - std::sys_common::backtrace::_print::h23cf181c7ee884c0
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f4e5964f4c4 - std::sys_common::backtrace::print::ha8c43be89c69bb35
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f4e596521cb - std::panicking::default_hook::{{closure}}::h5850daabba95add3
10: 0x7f4e59651f23 - std::panicking::default_hook::h927208de7c8aa04a
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/panicking.rs:292:9
11: 0x7f4e562a393f - std[16fa80a9100f94e9]::panicking::update_hook::<alloc[7bbb032d5977675a]::boxed::Box<rustc_driver_impl[93973095071799d4]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7f4e59652930 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hef4f571603a76142
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/alloc/src/boxed.rs:2034:9
13: 0x7f4e59652930 - std::panicking::rust_panic_with_hook::hf4470ff416e0f85c
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/panicking.rs:783:13
14: 0x7f4e59652672 - std::panicking::begin_panic_handler::{{closure}}::hc33ab4a8553711f1
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/panicking.rs:657:13
15: 0x7f4e5964fbc6 - std::sys_common::backtrace::__rust_end_short_backtrace::heea4e6144f841498
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7f4e596523a4 - rust_begin_unwind
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/panicking.rs:645:5
17: 0x7f4e5969cd15 - core::panicking::panic_fmt::h6b47fc784c42a44f
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/core/src/panicking.rs:72:14
18: 0x7f4e5969cf62 - core::panicking::panic_bounds_check::h40920a00b2e8645f
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/core/src/panicking.rs:209:5
19: 0x7f4e5773cba5 - rustc_query_impl[388e884d96e7c885]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[388e884d96e7c885]::query_impl::opt_local_def_id_to_hir_id::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1566db9aa553dc1e]::query::erase::Erased<[u8; 8usize]>>
20: 0x7f4e5773c137 - rustc_query_system[be268ab4dd4fe2c4]::query::plumbing::try_execute_query::<rustc_query_impl[388e884d96e7c885]::DynamicConfig<rustc_query_system[be268ab4dd4fe2c4]::query::caches::VecCache<rustc_span[b32d8a6dd76386fe]::def_id::LocalDefId, rustc_middle[1566db9aa553dc1e]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[388e884d96e7c885]::plumbing::QueryCtxt, false>
21: 0x7f4e5773bc89 - rustc_query_impl[388e884d96e7c885]::query_impl::opt_local_def_id_to_hir_id::get_query_non_incr::__rust_end_short_backtrace
22: 0x7f4e5566df6b - rustc_hir_analysis[a25e4a65a289fc30]::collect::type_of::type_of
23: 0x7f4e5765eaa2 - rustc_query_impl[388e884d96e7c885]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[388e884d96e7c885]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1566db9aa553dc1e]::query::erase::Erased<[u8; 8usize]>>
24: 0x7f4e5765d559 - rustc_query_system[be268ab4dd4fe2c4]::query::plumbing::try_execute_query::<rustc_query_impl[388e884d96e7c885]::DynamicConfig<rustc_query_system[be268ab4dd4fe2c4]::query::caches::DefIdCache<rustc_middle[1566db9aa553dc1e]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[388e884d96e7c885]::plumbing::QueryCtxt, false>
25: 0x7f4e5765d063 - rustc_query_impl[388e884d96e7c885]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
26: 0x7f4e5813c19c - <rustc_middle[1566db9aa553dc1e]::ty::instance::Instance>::ty
27: 0x7f4e49c1a91c - rustc_codegen_cranelift[6d40d3b611a797fa]::constant::data_id_for_static
28: 0x7f4e49c18942 - <rustc_codegen_cranelift[6d40d3b611a797fa]::constant::ConstantCx>::finalize
29: 0x7f4e49c21be3 - rustc_codegen_cranelift[6d40d3b611a797fa]::driver::aot::module_codegen::{closure#0}
30: 0x7f4e49c20297 - rustc_codegen_cranelift[6d40d3b611a797fa]::driver::aot::module_codegen
31: 0x7f4e49c2c68c - rustc_codegen_cranelift[6d40d3b611a797fa]::driver::aot::run_aot
32: 0x7f4e49c5ba71 - <rustc_codegen_cranelift[6d40d3b611a797fa]::CraneliftCodegenBackend as rustc_codegen_ssa[ea620ae6e0f9d31]::traits::backend::CodegenBackend>::codegen_crate
33: 0x7f4e57f84045 - rustc_interface[de72e7e0dc20aa2a]::passes::start_codegen
34: 0x7f4e57f82e33 - <rustc_interface[de72e7e0dc20aa2a]::queries::Queries>::codegen_and_build_linker
35: 0x7f4e585f0131 - rustc_interface[de72e7e0dc20aa2a]::interface::run_compiler::<core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>, rustc_driver_impl[93973095071799d4]::run_compiler::{closure#0}>::{closure#0}
36: 0x7f4e585e84d7 - std[16fa80a9100f94e9]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[de72e7e0dc20aa2a]::util::run_in_thread_with_globals<rustc_interface[de72e7e0dc20aa2a]::util::run_in_thread_pool_with_globals<rustc_interface[de72e7e0dc20aa2a]::interface::run_compiler<core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>, rustc_driver_impl[93973095071799d4]::run_compiler::{closure#0}>::{closure#0}, core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>>::{closure#0}, core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>>
37: 0x7f4e585e8304 - <<std[16fa80a9100f94e9]::thread::Builder>::spawn_unchecked_<rustc_interface[de72e7e0dc20aa2a]::util::run_in_thread_with_globals<rustc_interface[de72e7e0dc20aa2a]::util::run_in_thread_pool_with_globals<rustc_interface[de72e7e0dc20aa2a]::interface::run_compiler<core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>, rustc_driver_impl[93973095071799d4]::run_compiler::{closure#0}>::{closure#0}, core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>>::{closure#0}, core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[57c9baa80fbe8163]::result::Result<(), rustc_span[b32d8a6dd76386fe]::ErrorGuaranteed>>::{closure#1} as core[57c9baa80fbe8163]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
38: 0x7f4e5965c135 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7bf8226d462e248
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/alloc/src/boxed.rs:2020:9
39: 0x7f4e5965c135 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0c8e4067a29a93ad
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/alloc/src/boxed.rs:2020:9
40: 0x7f4e5965c135 - std::sys::pal::unix::thread::Thread::new::thread_start::hcc7d14588e2fbcf6
at /rustc/7de1a1f6db26cf7af43cca74819118428e6317ee/library/std/src/sys/pal/unix/thread.rs:108:17
41: 0x7f4e532a955a - <unknown>
42: 0x7f4e53326a3c - <unknown>
43: 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 1.78.0-nightly (7de1a1f6d 2024-03-12) running on x86_64-unknown-linux-gnu
note: compiler flags: -Z codegen-backend=cranelift -Z dump-mir-dir=dir
query stack during panic:
#0 [opt_local_def_id_to_hir_id] getting HIR ID of `TEST2::{constant#0}`
#1 [type_of] computing type of `TEST2::{constant#0}`
end of query stack
warning: 1 warning emitted
Activity
matthiaskrgr commentedon Mar 12, 2024
regression in #121644 cc @oli-obk
also cc @bjorn3 for awareness
oli-obk commentedon Mar 12, 2024
Oh yea, I only really implemented and tested llvm
oli-obk commentedon Mar 12, 2024
gcc is now also very broken for statics with multiple references in the trailing expression
cc @GuillaumeGomez
I'll happily provide guidance for the backends. The most important point is to stop using types of statics, and obtain all information (alignment, size, mutability) from the allocation returned by evaluating the static's initializer
Or implement stuff myself if
x test uiis easily able to run with the other backendGuillaumeGomez commentedon Mar 12, 2024
I'll let @antoyo take a look for the statics issue.
For being able to easily test the gcc backend, it's still in-progress.
andyleiserson commentedon Mar 15, 2024
I get an ICE with miri that looks similar (and started showing up around the same time) that I can reproduce with
git clone -b v0.12.1 https://github.com/rustls/rcgen.git && cd rcgen && cargo +nightly miri test.rustc-ice-2024-03-15T19_11_39-24486.txt
Edit: filed rust-lang/miri#3389.
bjorn3 commentedon Mar 16, 2024
I somehow missed this. In any case this is fixed by rust-lang/rustc_codegen_cranelift@e775fdc. Will do a subtree sync soon.
Auto merge of rust-lang#122599 - bjorn3:sync_cg_clif-2024-03-16, r=bj…
oli-obk commentedon Mar 19, 2024
I created #122719 so we get sensible ICEs from now on (and fixing rust-lang/miri#3389 in the process
Auto merge of #122599 - bjorn3:sync_cg_clif-2024-03-16, r=bjorn3
Auto merge of #122599 - bjorn3:sync_cg_clif-2024-03-16, r=bjorn3