Closed
Description
auto-reduced (treereduce-rust):
struct A<T: 'static>(&'static T);
struct B<T: ?Sized + Send> {
x: &'static T,
}
static STR: &'static [u8] = "a b";
static C: A<B<B<[u8]>>> = { A(&B { x: &B { x: STR } }) };original:
//@ run-pass
// Use of global static variables in literal values should be allowed for
// promotion.
// This test is to demonstrate the issue raised in
// https://github.com/rust-lang/rust/issues/70584
// Literal values were previously promoted into local static values when
// other global static variables are used.
struct A<T: 'static>(&'static T);
struct B<T: ?Sized + Send> {
x: &'static T
}
static STR: &'static [u8] = "\x7Ba\x7D \x7Bb\x7D";
static C: A<B<B<[u8]>>> = {
A(&B {
x: &B { x: STR },
})
};
pub struct Slice(&'static [i32]);
static CONTENT: i32 = 42;
pub static CONTENT_MAP: Slice = Slice(&[CONTENT]);
pub static FOO: (i32, i32) = (42, 43);
pub static CONTENT_MAP2: Slice = Slice(&[FOO.0]);
fn main() {
assert_eq!(b"hi", C.0.x.x);
assert_eq!(&[42], CONTENT_MAP.0);
assert_eq!(&[42], CONTENT_MAP2.0);
}Version information
rustc 1.85.0-nightly (acf48426b 2024-12-06)
binary: rustc
commit-hash: acf48426b64d24f372d534f634072de1f4c7e588
commit-date: 2024-12-06
host: x86_64-unknown-linux-gnu
release: 1.85.0-nightly
LLVM version: 19.1.5
Possibly related line of code:
rust/compiler/rustc_const_eval/src/interpret/eval_context.rs
Lines 588 to 600 in acf4842
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
warning: unnecessary braces around assigned value
--> /tmp/icemaker_global_tempdir.xOeHTpmH6ZfT/rustc_testrunner_tmpdir_reporting.M0zB4QRO8XGI/mvce.rs:6:27
|
6 | static C: A<B<B<[u8]>>> = { A(&B { x: &B { x: STR } }) };
| ^^ ^^
|
= note: `#[warn(unused_braces)]` on by default
help: remove these braces
|
6 - static C: A<B<B<[u8]>>> = { A(&B { x: &B { x: STR } }) };
6 + static C: A<B<B<[u8]>>> = A(&B { x: &B { x: STR } });
|
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.xOeHTpmH6ZfT/rustc_testrunner_tmpdir_reporting.M0zB4QRO8XGI/mvce.rs:6:58
|
6 | static C: A<B<B<[u8]>>> = { A(&B { x: &B { x: STR } }) };
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.xOeHTpmH6ZfT/rustc_testrunner_tmpdir_reporting.M0zB4QRO8XGI/mvce.rs`
error[E0310]: the parameter type `T` may not live long enough
--> /tmp/icemaker_global_tempdir.xOeHTpmH6ZfT/rustc_testrunner_tmpdir_reporting.M0zB4QRO8XGI/mvce.rs:3:8
|
3 | x: &'static T,
| ^^^^^^^^^^
| |
| the parameter type `T` must be valid for the static lifetime...
| ...so that the reference type `&'static T` does not outlive the data it points at
|
help: consider adding an explicit lifetime bound
|
2 | struct B<T: ?Sized + Send + 'static> {
| +++++++++
error[E0308]: mismatched types
--> /tmp/icemaker_global_tempdir.xOeHTpmH6ZfT/rustc_testrunner_tmpdir_reporting.M0zB4QRO8XGI/mvce.rs:5:29
|
5 | static STR: &'static [u8] = "a b";
| ^^^^^ expected `&[u8]`, found `&str`
|
= note: expected reference `&'static [u8]`
found reference `&'static str`
help: consider adding a leading `b`
|
5 | static STR: &'static [u8] = b"a b";
| +
error: internal compiler error: compiler/rustc_const_eval/src/interpret/eval_context.rs:594:33: interpret const eval failure of Unevaluated(UnevaluatedConst { def: DefId(0:11 ~ mvce[d812]::C), args: [], promoted: Some(promoted[0]) }, &'{erased} B<B<[u8]>>) which is not in required_consts
--> /tmp/icemaker_global_tempdir.xOeHTpmH6ZfT/rustc_testrunner_tmpdir_reporting.M0zB4QRO8XGI/mvce.rs:6:31
|
6 | static C: A<B<B<[u8]>>> = { A(&B { x: &B { x: STR } }) };
| ^^^^^^^^^^^^^^^^^^^^^^^
thread 'rustc' panicked at compiler/rustc_const_eval/src/interpret/eval_context.rs:594:33:
Box<dyn Any>
stack backtrace:
0: 0x73bca0f4895a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h69edfa39ad21a03a
1: 0x73bca1613e26 - core::fmt::write::h54afaacea6c2c9e2
2: 0x73bca25f3ad1 - std::io::Write::write_fmt::h00e73f8f3070368c
3: 0x73bca0f487b2 - std::sys::backtrace::BacktraceLock::print::h2b0900033e71643f
4: 0x73bca0f4acca - std::panicking::default_hook::{{closure}}::h325b3b03f2ea7a39
5: 0x73bca0f4ab13 - std::panicking::default_hook::haaf25a6e7afde799
6: 0x73bca00c1238 - std[85c61899f894cf29]::panicking::update_hook::<alloc[98b3c20953f4fbe5]::boxed::Box<rustc_driver_impl[45224e78b6d2fe59]::install_ice_hook::{closure#0}>>::{closure#0}
7: 0x73bca0f4b488 - std::panicking::rust_panic_with_hook::hdc045113cf0fafba
8: 0x73bca00f6771 - std[85c61899f894cf29]::panicking::begin_panic::<rustc_errors[2297728cd06420b6]::ExplicitBug>::{closure#0}
9: 0x73bca00eb916 - std[85c61899f894cf29]::sys::backtrace::__rust_end_short_backtrace::<std[85c61899f894cf29]::panicking::begin_panic<rustc_errors[2297728cd06420b6]::ExplicitBug>::{closure#0}, !>
10: 0x73bca00eb6d3 - std[85c61899f894cf29]::panicking::begin_panic::<rustc_errors[2297728cd06420b6]::ExplicitBug>
11: 0x73bca0100711 - <rustc_errors[2297728cd06420b6]::diagnostic::BugAbort as rustc_errors[2297728cd06420b6]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
12: 0x73bca0655d3c - <rustc_errors[2297728cd06420b6]::DiagCtxtHandle>::span_bug::<rustc_span[267b34eb586afd37]::span_encoding::Span, alloc[98b3c20953f4fbe5]::string::String>
13: 0x73bca06e86e7 - rustc_middle[2b65deb07cad4442]::util::bug::opt_span_bug_fmt::<rustc_span[267b34eb586afd37]::span_encoding::Span>::{closure#0}
14: 0x73bca06d0c0a - rustc_middle[2b65deb07cad4442]::ty::context::tls::with_opt::<rustc_middle[2b65deb07cad4442]::util::bug::opt_span_bug_fmt<rustc_span[267b34eb586afd37]::span_encoding::Span>::{closure#0}, !>::{closure#0}
15: 0x73bca06d0a9b - rustc_middle[2b65deb07cad4442]::ty::context::tls::with_context_opt::<rustc_middle[2b65deb07cad4442]::ty::context::tls::with_opt<rustc_middle[2b65deb07cad4442]::util::bug::opt_span_bug_fmt<rustc_span[267b34eb586afd37]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
16: 0x73bc9f0446a7 - rustc_middle[2b65deb07cad4442]::util::bug::span_bug_fmt::<rustc_span[267b34eb586afd37]::span_encoding::Span>
17: 0x73bca2a8bc20 - rustc_const_eval[c1d2b202d9973a02]::const_eval::eval_queries::eval_body_using_ecx::<rustc_middle[2b65deb07cad4442]::mir::interpret::allocation::ConstAllocation>
18: 0x73bca29f2e3d - rustc_const_eval[c1d2b202d9973a02]::const_eval::eval_queries::eval_static_initializer_provider
19: 0x73bca29f2be7 - rustc_query_impl[31526c927efa8eec]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[31526c927efa8eec]::query_impl::eval_static_initializer::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2b65deb07cad4442]::query::erase::Erased<[u8; 16usize]>>
20: 0x73bca29f2bc9 - <rustc_query_impl[31526c927efa8eec]::query_impl::eval_static_initializer::dynamic_query::{closure#2} as core[ce4f568dace374e]::ops::function::FnOnce<(rustc_middle[2b65deb07cad4442]::ty::context::TyCtxt, rustc_span[267b34eb586afd37]::def_id::DefId)>>::call_once
21: 0x73bca180e6da - rustc_query_system[8b7296974754ceb3]::query::plumbing::try_execute_query::<rustc_query_impl[31526c927efa8eec]::DynamicConfig<rustc_query_system[8b7296974754ceb3]::query::caches::DefIdCache<rustc_middle[2b65deb07cad4442]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[31526c927efa8eec]::plumbing::QueryCtxt, false>
22: 0x73bca26252b8 - rustc_query_impl[31526c927efa8eec]::query_impl::eval_static_initializer::get_query_non_incr::__rust_end_short_backtrace
23: 0x73bca1a3a249 - <rustc_middle[2b65deb07cad4442]::hir::map::Map>::par_body_owners::<rustc_hir_analysis[4e6fa7c2cad24599]::check_crate::{closure#3}>::{closure#0}
24: 0x73bca1a37b37 - rustc_hir_analysis[4e6fa7c2cad24599]::check_crate
25: 0x73bca1a42584 - rustc_interface[51c1904b6ef58290]::passes::run_required_analyses
26: 0x73bca25d88de - rustc_interface[51c1904b6ef58290]::passes::analysis
27: 0x73bca25d88af - rustc_query_impl[31526c927efa8eec]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[31526c927efa8eec]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2b65deb07cad4442]::query::erase::Erased<[u8; 1usize]>>
28: 0x73bca25af7ba - rustc_query_system[8b7296974754ceb3]::query::plumbing::try_execute_query::<rustc_query_impl[31526c927efa8eec]::DynamicConfig<rustc_query_system[8b7296974754ceb3]::query::caches::SingleCache<rustc_middle[2b65deb07cad4442]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[31526c927efa8eec]::plumbing::QueryCtxt, false>
29: 0x73bca25af48e - rustc_query_impl[31526c927efa8eec]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
30: 0x73bca26503eb - rustc_interface[51c1904b6ef58290]::interface::run_compiler::<core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>, rustc_driver_impl[45224e78b6d2fe59]::run_compiler::{closure#0}>::{closure#1}
31: 0x73bca2541ca1 - std[85c61899f894cf29]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[51c1904b6ef58290]::util::run_in_thread_with_globals<rustc_interface[51c1904b6ef58290]::util::run_in_thread_pool_with_globals<rustc_interface[51c1904b6ef58290]::interface::run_compiler<core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>, rustc_driver_impl[45224e78b6d2fe59]::run_compiler::{closure#0}>::{closure#1}, core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>>::{closure#0}, core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>>
32: 0x73bca2541948 - <<std[85c61899f894cf29]::thread::Builder>::spawn_unchecked_<rustc_interface[51c1904b6ef58290]::util::run_in_thread_with_globals<rustc_interface[51c1904b6ef58290]::util::run_in_thread_pool_with_globals<rustc_interface[51c1904b6ef58290]::interface::run_compiler<core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>, rustc_driver_impl[45224e78b6d2fe59]::run_compiler::{closure#0}>::{closure#1}, core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>>::{closure#0}, core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[ce4f568dace374e]::result::Result<(), rustc_span[267b34eb586afd37]::ErrorGuaranteed>>::{closure#1} as core[ce4f568dace374e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
33: 0x73bca254107b - std::sys::pal::unix::thread::Thread::new::thread_start::h6f16c939ae6ab66d
34: 0x73bc9c8a339d - <unknown>
35: 0x73bc9c92849c - <unknown>
36: 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 1.85.0-nightly (acf48426b 2024-12-06) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [eval_static_initializer] evaluating initializer of static `C`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 4 previous errors; 1 warning emitted
Some errors have detailed explanations: E0308, E0310, E0601.
For more information about an error, try `rustc --explain E0308`.