Closed
Description
auto-reduced (treereduce-rust):
fn main() {
let mut a: u8 = 0;
let mut b: u8 = 0;
match (a, b) {
(x @ 0 | x @ (1 | 2), 2 | 3) => {}
_ => {}
}
}
original:
fn main() {
// Initialize test constants in a way that cannot be determined at compile time, to ensure
// rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
// dependent conditions.
let is_true = std::env::args().len() == 1;
let mut a: u8 = 0;
let mut b: u8 = 0;
if is_true {
a = 2;
b = 0;
}
match (a, b) {
// Or patterns generate MIR `SwitchInt` with multiple targets to the same `BasicBlock`.
// This test confirms a fix for Issue #79569.
(0 | 1, 2 | 3) => {}
_ => {}
}
if is_true {
a = 0;
b = 0;
}
match (a, b) {
(x @ 0 | x @ (1 | 2), 2 | 3) => {}
_ => {}
}
if is_true {
a = 2;
b = 2;
}
match (a, b) {
(0 | 1, 2 | 3) => {}
_ => {}
}
if is_true {
a = 0;
b = 2;
}
match (a, b) {
(0 | 1, 2 | 3) => {}
_ => {}
}
}Version information
rustc 1.75.0-nightly (bcb5798dd 2023-10-30)
binary: rustc
commit-hash: bcb5798dd890a691644af9d371f3bd7fcc465584
commit-date: 2023-10-30
host: x86_64-unknown-linux-gnu
release: 1.75.0-nightly
LLVM version: 17.0.3
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
thread 'rustc' panicked at compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs:1014:57:
called `Option::unwrap()` on a `None` value
stack backtrace:
0: 0x7f3346569cfc - std::backtrace_rs::backtrace::libunwind::trace::h696e701df900a2b2
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7f3346569cfc - std::backtrace_rs::backtrace::trace_unsynchronized::h0a821b5067328428
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f3346569cfc - std::sys_common::backtrace::_print_fmt::h561ba93d7dd378a2
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/sys_common/backtrace.rs:67:5
3: 0x7f3346569cfc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hadaea2aacdfa4b18
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f33465cbf50 - core::fmt::rt::Argument::fmt::haaf2e1dae680d0d4
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/core/src/fmt/rt.rs:142:9
5: 0x7f33465cbf50 - core::fmt::write::h92a090160f936a3a
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/core/src/fmt/mod.rs:1117:17
6: 0x7f334655db8f - std::io::Write::write_fmt::h304b2c71e3a57237
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/io/mod.rs:1763:15
7: 0x7f3346569ae4 - std::sys_common::backtrace::_print::h805cb7447553b9fa
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f3346569ae4 - std::sys_common::backtrace::print::h7be441b9aecf7507
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f334656c777 - std::panicking::default_hook::{{closure}}::hf0f1687c23b85f00
10: 0x7f334656c4df - std::panicking::default_hook::h1aa7ed866efb6ff4
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/panicking.rs:292:9
11: 0x7f33490e0b80 - std[52b4fac2c1cd6916]::panicking::update_hook::<alloc[b6c0ed09a4f055cf]::boxed::Box<rustc_driver_impl[f6d8c9ab4fbb7a4c]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7f334656ceb8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha095ea6a5339338c
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/alloc/src/boxed.rs:2021:9
13: 0x7f334656ceb8 - std::panicking::rust_panic_with_hook::h96c03960eff56a0b
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/panicking.rs:783:13
14: 0x7f334656cbd9 - std::panicking::begin_panic_handler::{{closure}}::h84d48c8fcbaa5a8e
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/panicking.rs:649:13
15: 0x7f334656a1c6 - std::sys_common::backtrace::__rust_end_short_backtrace::hecfc998ecdf91e3f
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/sys_common/backtrace.rs:170:18
16: 0x7f334656c972 - rust_begin_unwind
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/panicking.rs:645:5
17: 0x7f33465c8675 - core::panicking::panic_fmt::h6e82c0350c7df615
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/core/src/panicking.rs:72:14
18: 0x7f33465c8713 - core::panicking::panic::h13c740d142feafe7
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/core/src/panicking.rs:127:5
19: 0x7f334a73925e - <rustc_mir_build[8d4645eb8362c67e]::thir::pattern::usefulness::PatternColumn>::analyze_ctors
20: 0x7f334a73689a - rustc_mir_build[8d4645eb8362c67e]::thir::pattern::usefulness::lint_overlapping_range_endpoints
21: 0x7f334a736c95 - rustc_mir_build[8d4645eb8362c67e]::thir::pattern::usefulness::lint_overlapping_range_endpoints
22: 0x7f334a7353f3 - rustc_mir_build[8d4645eb8362c67e]::thir::pattern::usefulness::compute_match_usefulness
23: 0x7f33474de4e1 - <rustc_mir_build[8d4645eb8362c67e]::thir::pattern::check_match::MatchVisitor as rustc_middle[13e6374ce232bd81]::thir::visit::Visitor>::visit_expr
24: 0x7f33474ddbc9 - <rustc_mir_build[8d4645eb8362c67e]::thir::pattern::check_match::MatchVisitor as rustc_middle[13e6374ce232bd81]::thir::visit::Visitor>::visit_expr
25: 0x7f33474de7e3 - <rustc_mir_build[8d4645eb8362c67e]::thir::pattern::check_match::MatchVisitor as rustc_middle[13e6374ce232bd81]::thir::visit::Visitor>::visit_expr
26: 0x7f33474ddbc9 - <rustc_mir_build[8d4645eb8362c67e]::thir::pattern::check_match::MatchVisitor as rustc_middle[13e6374ce232bd81]::thir::visit::Visitor>::visit_expr
27: 0x7f334a730bd4 - rustc_mir_build[8d4645eb8362c67e]::thir::pattern::check_match::check_match
28: 0x7f334a730947 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::check_match::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 1usize]>>
29: 0x7f334a73036b - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::VecCache<rustc_span[219ab52d13232863]::def_id::LocalDefId, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
30: 0x7f334a73011d - rustc_query_impl[d72368bb483549e]::query_impl::check_match::get_query_non_incr::__rust_end_short_backtrace
31: 0x7f334a6f3b3a - rustc_mir_build[8d4645eb8362c67e]::build::mir_built
32: 0x7f334a6f39f1 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>
33: 0x7f334a34aa2c - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::VecCache<rustc_span[219ab52d13232863]::def_id::LocalDefId, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
34: 0x7f334a34a410 - rustc_query_impl[d72368bb483549e]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
35: 0x7f33479ed39e - rustc_mir_transform[f35e55d77e06c6f7]::check_unsafety::unsafety_check_result
36: 0x7f334a34a807 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::unsafety_check_result::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>
37: 0x7f334a34aa2c - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::VecCache<rustc_span[219ab52d13232863]::def_id::LocalDefId, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
38: 0x7f334a34a4d0 - rustc_query_impl[d72368bb483549e]::query_impl::unsafety_check_result::get_query_non_incr::__rust_end_short_backtrace
39: 0x7f334a34b51a - rustc_mir_transform[f35e55d77e06c6f7]::mir_const
40: 0x7f334a34b467 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::mir_const::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>
41: 0x7f334a34aa2c - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::VecCache<rustc_span[219ab52d13232863]::def_id::LocalDefId, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
42: 0x7f334a34a590 - rustc_query_impl[d72368bb483549e]::query_impl::mir_const::get_query_non_incr::__rust_end_short_backtrace
43: 0x7f33486e4b2a - rustc_mir_transform[f35e55d77e06c6f7]::mir_promoted
44: 0x7f334a76b7d2 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 16usize]>>
45: 0x7f334a76ba40 - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::VecCache<rustc_span[219ab52d13232863]::def_id::LocalDefId, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
46: 0x7f334a76b6d3 - rustc_query_impl[d72368bb483549e]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
47: 0x7f334afa24a1 - rustc_borrowck[743c78a69b92f584]::mir_borrowck
48: 0x7f334afa2417 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>
49: 0x7f334a34aa2c - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::VecCache<rustc_span[219ab52d13232863]::def_id::LocalDefId, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
50: 0x7f334a34a650 - rustc_query_impl[d72368bb483549e]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
51: 0x7f334aa128c8 - rustc_interface[6394f483f79c51a]::passes::analysis
52: 0x7f334aa121b5 - rustc_query_impl[d72368bb483549e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d72368bb483549e]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 1usize]>>
53: 0x7f334ad231e6 - rustc_query_system[7f1cfd16d8bae603]::query::plumbing::try_execute_query::<rustc_query_impl[d72368bb483549e]::DynamicConfig<rustc_query_system[7f1cfd16d8bae603]::query::caches::SingleCache<rustc_middle[13e6374ce232bd81]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[d72368bb483549e]::plumbing::QueryCtxt, false>
54: 0x7f334ad23015 - rustc_query_impl[d72368bb483549e]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
55: 0x7f334af1aeb4 - std[52b4fac2c1cd6916]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[6394f483f79c51a]::util::run_in_thread_with_globals<rustc_interface[6394f483f79c51a]::interface::run_compiler<core[68a6506991500897]::result::Result<(), rustc_span[219ab52d13232863]::ErrorGuaranteed>, rustc_driver_impl[f6d8c9ab4fbb7a4c]::run_compiler::{closure#1}>::{closure#0}, core[68a6506991500897]::result::Result<(), rustc_span[219ab52d13232863]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[68a6506991500897]::result::Result<(), rustc_span[219ab52d13232863]::ErrorGuaranteed>>
56: 0x7f334af1a173 - <<std[52b4fac2c1cd6916]::thread::Builder>::spawn_unchecked_<rustc_interface[6394f483f79c51a]::util::run_in_thread_with_globals<rustc_interface[6394f483f79c51a]::interface::run_compiler<core[68a6506991500897]::result::Result<(), rustc_span[219ab52d13232863]::ErrorGuaranteed>, rustc_driver_impl[f6d8c9ab4fbb7a4c]::run_compiler::{closure#1}>::{closure#0}, core[68a6506991500897]::result::Result<(), rustc_span[219ab52d13232863]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[68a6506991500897]::result::Result<(), rustc_span[219ab52d13232863]::ErrorGuaranteed>>::{closure#1} as core[68a6506991500897]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
57: 0x7f3346577c85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5c45b6a24e5f1474
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/alloc/src/boxed.rs:2007:9
58: 0x7f3346577c85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h18b35e832435abd8
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/alloc/src/boxed.rs:2007:9
59: 0x7f3346577c85 - std::sys::unix::thread::Thread::new::thread_start::h4880d4dbe7e5215f
at /rustc/bcb5798dd890a691644af9d371f3bd7fcc465584/library/std/src/sys/unix/thread.rs:108:17
60: 0x7f33463419eb - <unknown>
61: 0x7f33463c57cc - <unknown>
62: 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 1.75.0-nightly (bcb5798dd 2023-10-30) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [check_match] match-checking `main`
#1 [mir_built] building MIR for `main`
#2 [unsafety_check_result] unsafety-checking `main`
#3 [mir_const] preparing `main` for borrow checking
#4 [mir_promoted] promoting constants in MIR for `main`
#5 [mir_borrowck] borrow-checking `main`
#6 [analysis] running analysis passes on this crate
end of query stack