Closed
Description
Code
rustc treereduce.out --edition=2021 -Zsanitizer=cfi -Zsanitizer-cfi-normalize-integers -Clto
#![crate_type = "lib"]
trait Mirror {
type It: ?Sized;
}
impl<T: ?Sized> Mirror for T {
type It = Self;
}
#[repr(transparent)]
pub struct StructWithProjection(<f32 as Mirror>::It);
pub extern "C" fn test_Projection() -> StructWithProjection {
loop {}
}Meta
rustc --version --verbose:
rustc 1.71.0-nightly (6f8c0557e 2023-05-04)
binary: rustc
commit-hash: 6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c
commit-date: 2023-05-04
host: x86_64-unknown-linux-gnu
release: 1.71.0-nightly
LLVM version: 16.0.2
Error output
Backtrace
warning: function `test_Projection` should have a snake case name
--> treereduce.out:13:19
|
13 | pub extern "C" fn test_Projection() -> StructWithProjection {
| ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_projection`
|
= note: `#[warn(non_snake_case)]` on by default
error: internal compiler error: compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs:881:13: transform_ty: unexpected `Alias(Projection, AliasTy { substs: [f32], def_id: DefId(0:4 ~ treereduce[3c3c]::Mirror::It) })`
thread 'rustc' panicked at 'Box<dyn Any>', /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/compiler/rustc_errors/src/lib.rs:1643:9
stack backtrace:
0: 0x7f3fee369441 - std::backtrace_rs::backtrace::libunwind::trace::ha1124e3c4b659eb5
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7f3fee369441 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a8d622ec81b6cb5
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f3fee369441 - std::sys_common::backtrace::_print_fmt::h2128e938c7086b6e
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/sys_common/backtrace.rs:65:5
3: 0x7f3fee369441 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc50c3543d0b1b52f
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f3fee3ca0df - core::fmt::rt::Argument::fmt::h84c36e9580f5b71f
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/core/src/fmt/rt.rs:138:9
5: 0x7f3fee3ca0df - core::fmt::write::h326e01f7a9aa5dd9
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/core/src/fmt/mod.rs:1094:21
6: 0x7f3fee35c4f1 - std::io::Write::write_fmt::h71f0f6281149b8c8
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/io/mod.rs:1712:15
7: 0x7f3fee369255 - std::sys_common::backtrace::_print::h6b9c2111a065fb89
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f3fee369255 - std::sys_common::backtrace::print::hf8d0af7625f66057
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f3fee36bee7 - std::panicking::default_hook::{{closure}}::h630fe7740556559d
10: 0x7f3fee36bcd4 - std::panicking::default_hook::h337047625b381696
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/panicking.rs:288:9
11: 0x7f3ff1571715 - rustc_driver_impl[f38315262de66e12]::DEFAULT_HOOK::{closure#0}::{closure#0}
12: 0x7f3fee36c607 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1ac669e77ecf459f
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/alloc/src/boxed.rs:1999:9
13: 0x7f3fee36c607 - std::panicking::rust_panic_with_hook::h22ef26cea64ec65c
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/panicking.rs:695:13
14: 0x7f3ff1a39901 - std[2e06b57a958d7603]::panicking::begin_panic::<rustc_errors[5778b576bff5e43e]::ExplicitBug>::{closure#0}
15: 0x7f3ff1a392a6 - std[2e06b57a958d7603]::sys_common::backtrace::__rust_end_short_backtrace::<std[2e06b57a958d7603]::panicking::begin_panic<rustc_errors[5778b576bff5e43e]::ExplicitBug>::{closure#0}, !>
16: 0x7f3ff1a5fca6 - std[2e06b57a958d7603]::panicking::begin_panic::<rustc_errors[5778b576bff5e43e]::ExplicitBug>
17: 0x7f3ff1a5d114 - <rustc_errors[5778b576bff5e43e]::HandlerInner>::bug::<alloc[3df6c3833cdafa3e]::string::String>
18: 0x7f3ff1a5ce46 - <rustc_errors[5778b576bff5e43e]::Handler>::bug::<alloc[3df6c3833cdafa3e]::string::String>
19: 0x7f3ff1ae52cc - rustc_middle[9b03ef73197c8750]::util::bug::opt_span_bug_fmt::<rustc_span[e5d9edf586a8e474]::span_encoding::Span>::{closure#0}
20: 0x7f3ff1ae4afa - rustc_middle[9b03ef73197c8750]::ty::context::tls::with_opt::<rustc_middle[9b03ef73197c8750]::util::bug::opt_span_bug_fmt<rustc_span[e5d9edf586a8e474]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7f3ff1ae4aca - rustc_middle[9b03ef73197c8750]::ty::context::tls::with_context_opt::<rustc_middle[9b03ef73197c8750]::ty::context::tls::with_opt<rustc_middle[9b03ef73197c8750]::util::bug::opt_span_bug_fmt<rustc_span[e5d9edf586a8e474]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7f3fefc50ccd - rustc_middle[9b03ef73197c8750]::util::bug::bug_fmt
23: 0x7f3ff1fc9752 - rustc_symbol_mangling[1bf499ff7f75842a]::typeid::typeid_itanium_cxx_abi::transform_ty
24: 0x7f3ff1fc96fa - rustc_symbol_mangling[1bf499ff7f75842a]::typeid::typeid_itanium_cxx_abi::transform_ty
25: 0x7f3ff1fc9db1 - rustc_symbol_mangling[1bf499ff7f75842a]::typeid::typeid_itanium_cxx_abi::typeid_for_fnabi
26: 0x7f3fefb7059f - <rustc_codegen_llvm[d78081c433bf4e31]::context::CodegenCx as rustc_codegen_ssa[7c934ba332e0ab85]::traits::declare::PreDefineMethods>::predefine_fn
27: 0x7f3ff0a1a0dd - rustc_codegen_llvm[d78081c433bf4e31]::base::compile_codegen_unit::module_codegen
28: 0x7f3ff0a18fb0 - rustc_codegen_llvm[d78081c433bf4e31]::base::compile_codegen_unit
29: 0x7f3ff0c5c416 - rustc_codegen_ssa[7c934ba332e0ab85]::base::codegen_crate::<rustc_codegen_llvm[d78081c433bf4e31]::LlvmCodegenBackend>
30: 0x7f3ff0c5bce2 - <rustc_codegen_llvm[d78081c433bf4e31]::LlvmCodegenBackend as rustc_codegen_ssa[7c934ba332e0ab85]::traits::backend::CodegenBackend>::codegen_crate
31: 0x7f3ff07ff8e0 - rustc_interface[32f66f6c15b482f4]::passes::start_codegen
32: 0x7f3ff07facc7 - <rustc_middle[9b03ef73197c8750]::ty::context::GlobalCtxt>::enter::<<rustc_interface[32f66f6c15b482f4]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[351080cb3919538e]::result::Result<alloc[3df6c3833cdafa3e]::boxed::Box<dyn core[351080cb3919538e]::any::Any>, rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>>
33: 0x7f3ff07fa2a8 - <rustc_interface[32f66f6c15b482f4]::queries::Queries>::ongoing_codegen
34: 0x7f3ff07f99e3 - <rustc_interface[32f66f6c15b482f4]::interface::Compiler>::enter::<rustc_driver_impl[f38315262de66e12]::run_compiler::{closure#1}::{closure#2}, core[351080cb3919538e]::result::Result<core[351080cb3919538e]::option::Option<rustc_interface[32f66f6c15b482f4]::queries::Linker>, rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>>
35: 0x7f3ff07f714f - std[2e06b57a958d7603]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[32f66f6c15b482f4]::util::run_in_thread_pool_with_globals<rustc_interface[32f66f6c15b482f4]::interface::run_compiler<core[351080cb3919538e]::result::Result<(), rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>, rustc_driver_impl[f38315262de66e12]::run_compiler::{closure#1}>::{closure#0}, core[351080cb3919538e]::result::Result<(), rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[351080cb3919538e]::result::Result<(), rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>>
36: 0x7f3ff0e58a1e - <<std[2e06b57a958d7603]::thread::Builder>::spawn_unchecked_<rustc_interface[32f66f6c15b482f4]::util::run_in_thread_pool_with_globals<rustc_interface[32f66f6c15b482f4]::interface::run_compiler<core[351080cb3919538e]::result::Result<(), rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>, rustc_driver_impl[f38315262de66e12]::run_compiler::{closure#1}>::{closure#0}, core[351080cb3919538e]::result::Result<(), rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[351080cb3919538e]::result::Result<(), rustc_span[e5d9edf586a8e474]::ErrorGuaranteed>>::{closure#1} as core[351080cb3919538e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
37: 0x7f3fee376ad5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he4e640066a72afb4
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/alloc/src/boxed.rs:1985:9
38: 0x7f3fee376ad5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6a43b4ec147b3dd9
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/alloc/src/boxed.rs:1985:9
39: 0x7f3fee376ad5 - std::sys::unix::thread::Thread::new::thread_start::h8c269a865bc351fb
at /rustc/6f8c0557e0b73c73a8a7163a15f4a5a3feca7d5c/library/std/src/sys/unix/thread.rs:108:17
40: 0x7f3fee112bb5 - <unknown>
41: 0x7f3fee194d90 - <unknown>
42: 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: rustc 1.71.0-nightly (6f8c0557e 2023-05-04) running on x86_64-unknown-linux-gnu
note: compiler flags: -Z sanitizer=cfi -Z sanitizer-cfi-normalize-integers -C lto
query stack during panic:
end of query stack
error: aborting due to previous error; 1 warning emitted