ice: linkage: Fn(Instance { def: Item(DefId(0:7 ~ mvce[4fbb]::{impl#0}::bar)), args: [] }) = LinkOnceAny Default

[matthiaskrgr]

auto-reduced (treereduce-rust):

#![feature(linkage)]
macro_rules! make_method {
    ($name:ident) => {
        fn $name(&self) {}
    };
}

struct S;

impl S {
    make_method!(foo1);
    make_method!(foo2);
    make_method!(foo3);
    make_method!(enumerated_loop);
    make_method!(foo5);
    make_method!(foo6);
    make_method!(foo7);
    make_method!(foo8);

    #[linkage = "linkonce"]
    fn bar(&self) {}
}

fn main() {}

original:

// forbid-output: in this expansion of

macro_rules! make_method {
    ($name:ident) => ( fn $name(&self) { } )
}

struct S;

impl S {
    // We had a bug where these wouldn't clean up macro backtrace frames.
    make_method!(foo1);
    make_method!(foo2);
    make_method!(foo3);
    make_method!(enumerated_loop);
    make_method!(foo5);
    make_method!(foo6);
    make_method!(foo7);
    make_method!(foo8);

    // Cause an error. It shouldn't have any macro backtrace frames.
    #[linkage = "linkonce"]
    fn bar(&self) { } //~ ERROR duplicate definitions
}

fn main() { }

Version information

rustc 1.77.0-nightly (cb4d9a190 2024-01-30)
binary: rustc
commit-hash: cb4d9a1902b3ea17e93872dafb76d24aa6295c47
commit-date: 2024-01-30
host: x86_64-unknown-linux-gnu
release: 1.77.0-nightly
LLVM version: 17.0.6

Command:
/home/matthias/.rustup/toolchains/master/bin/rustc -Zcodegen-backend=cranelift -Zcrate-attr=feature(linkage)

Program output

warning: multiple methods are never used
  --> /tmp/icemaker_global_tempdir.d4xai4xLh1Kp/rustc_testrunner_tmpdir_reporting.6DxIvIUdNYZq/mvce.rs:10:18
   |
9  | impl S {
   | ------ methods in this implementation
10 |     make_method!(foo1);
   |                  ^^^^
11 |     make_method!(foo2);
   |                  ^^^^
12 |     make_method!(foo3);
   |                  ^^^^
13 |     make_method!(enumerated_loop);
   |                  ^^^^^^^^^^^^^^^
14 |     make_method!(foo5);
   |                  ^^^^
15 |     make_method!(foo6);
   |                  ^^^^
16 |     make_method!(foo7);
   |                  ^^^^
17 |     make_method!(foo8);
   |                  ^^^^
   |
   = note: `#[warn(dead_code)]` on by default
   = note: this warning originates in the macro `make_method` (in Nightly builds, run with -Z macro-backtrace for more info)

thread 'rustc' panicked at src/linkage.rs:17:14:
Fn(Instance { def: Item(DefId(0:7 ~ mvce[4fbb]::{impl#0}::bar)), args: [] }) = LinkOnceAny Default
stack backtrace:
   0:     0x7fc51038bd16 - std::backtrace_rs::backtrace::libunwind::trace::ha1ffb427d146be06
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7fc51038bd16 - std::backtrace_rs::backtrace::trace_unsynchronized::h3233e8c5c99079a0
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fc51038bd16 - std::sys_common::backtrace::_print_fmt::ha09c54c73dc31523
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7fc51038bd16 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hb575efd12cb49bf9
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fc5103de770 - core::fmt::rt::Argument::fmt::hfa005e844bc9fe43
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/core/src/fmt/rt.rs:142:9
   5:     0x7fc5103de770 - core::fmt::write::h559fda85dc6292c4
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/core/src/fmt/mod.rs:1120:17
   6:     0x7fc51037f61f - std::io::Write::write_fmt::h48410cf63c4d622c
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/io/mod.rs:1846:15
   7:     0x7fc51038baf4 - std::sys_common::backtrace::_print::heaf546ff60bf3821
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7fc51038baf4 - std::sys_common::backtrace::print::h52cc0b68730fd3bf
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7fc51038e887 - std::panicking::default_hook::{{closure}}::h9cc287dacf0db228
  10:     0x7fc51038e5e9 - std::panicking::default_hook::hf0eb17b9efad4d83
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/panicking.rs:292:9
  11:     0x7fc513133bfc - std[b17d18de645d14f5]::panicking::update_hook::<alloc[20182062dab2cff7]::boxed::Box<rustc_driver_impl[a7afd08560397dfd]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7fc51038efd6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h2072764c87311d5c
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/alloc/src/boxed.rs:2029:9
  13:     0x7fc51038efd6 - std::panicking::rust_panic_with_hook::h8c15e55009b1f0cd
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/panicking.rs:785:13
  14:     0x7fc51038ed22 - std::panicking::begin_panic_handler::{{closure}}::h91ecb7a781b19fc7
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/panicking.rs:659:13
  15:     0x7fc51038c216 - std::sys_common::backtrace::__rust_end_short_backtrace::h7612bfc645f63d2f
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/sys_common/backtrace.rs:171:18
  16:     0x7fc51038ea74 - rust_begin_unwind
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/panicking.rs:647:5
  17:     0x7fc5103dae75 - core::panicking::panic_fmt::h4f89a8cc63569575
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/core/src/panicking.rs:72:14
  18:     0x7fc506a2492d - rustc_codegen_cranelift[5d5cbd9a7cdfbfcb]::driver::aot::module_codegen::{closure#0}
  19:     0x7fc506a1fe72 - rustc_codegen_cranelift[5d5cbd9a7cdfbfcb]::driver::aot::module_codegen
  20:     0x7fc506a2c9df - rustc_codegen_cranelift[5d5cbd9a7cdfbfcb]::driver::aot::run_aot
  21:     0x7fc506a5bcdc - <rustc_codegen_cranelift[5d5cbd9a7cdfbfcb]::CraneliftCodegenBackend as rustc_codegen_ssa[b33049d2c07eb74d]::traits::backend::CodegenBackend>::codegen_crate
  22:     0x7fc515393a70 - rustc_interface[c7c8f488c1d96c6d]::passes::start_codegen
  23:     0x7fc5153931b0 - <rustc_interface[c7c8f488c1d96c6d]::queries::Queries>::codegen_and_build_linker
  24:     0x7fc51511458c - rustc_interface[c7c8f488c1d96c6d]::interface::run_compiler::<core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>, rustc_driver_impl[a7afd08560397dfd]::run_compiler::{closure#0}>::{closure#0}
  25:     0x7fc514da755a - std[b17d18de645d14f5]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[c7c8f488c1d96c6d]::util::run_in_thread_with_globals<rustc_interface[c7c8f488c1d96c6d]::util::run_in_thread_pool_with_globals<rustc_interface[c7c8f488c1d96c6d]::interface::run_compiler<core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>, rustc_driver_impl[a7afd08560397dfd]::run_compiler::{closure#0}>::{closure#0}, core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>>::{closure#0}, core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>>
  26:     0x7fc514da7389 - <<std[b17d18de645d14f5]::thread::Builder>::spawn_unchecked_<rustc_interface[c7c8f488c1d96c6d]::util::run_in_thread_with_globals<rustc_interface[c7c8f488c1d96c6d]::util::run_in_thread_pool_with_globals<rustc_interface[c7c8f488c1d96c6d]::interface::run_compiler<core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>, rustc_driver_impl[a7afd08560397dfd]::run_compiler::{closure#0}>::{closure#0}, core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>>::{closure#0}, core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e20c1d627f8cf941]::result::Result<(), rustc_span[5a19da4d0aee85d6]::ErrorGuaranteed>>::{closure#1} as core[e20c1d627f8cf941]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  27:     0x7fc510398675 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h89edab1f30a12557
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/alloc/src/boxed.rs:2015:9
  28:     0x7fc510398675 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbdac67f72b3ccfae
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/alloc/src/boxed.rs:2015:9
  29:     0x7fc510398675 - std::sys::pal::unix::thread::Thread::new::thread_start::h1707b2f687d14d64
                               at /rustc/cb4d9a1902b3ea17e93872dafb76d24aa6295c47/library/std/src/sys/pal/unix/thread.rs:108:17
  30:     0x7fc5101839eb - <unknown>
  31:     0x7fc5102077cc - <unknown>
  32:                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 1.77.0-nightly (cb4d9a190 2024-01-30) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z codegen-backend=cranelift -Z crate-attr=feature(linkage) -Z dump-mir-dir=dir

query stack during panic:
end of query stack
warning: 1 warning emitted

[bjorn3]

Duplicate of #1243