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Description
openedon Feb 3, 2024
Reproduction is in Custom MIR. Not sure if this can be triggered from surface rust
#![feature(custom_mir, core_intrinsics)]
extern crate core;
use core::intrinsics::mir::*;
#[custom_mir(dialect = "runtime", phase = "initial")]
pub fn fn13(mut _7: i8) {
mir! {
let _25: i16;
let _31: (i128, i16);
let _39: i16;
{
_31.1 = _7 as i16;
_25 = _31.1 * _31.1;
_31 = (50414009528881047150422352225052180952_i128, _25);
_25 = _31.1 >> _31.0;
Goto(bb17)
}
bb17 = {
Call(_39 = std::hint::black_box(_25), ReturnTo(bb18), UnwindUnreachable())
}
bb18 = {
Return()
}
}
}
pub fn main() {
fn13(0);
}$ rustc-clif -Zmir-opt-level=0 -Copt-level=3 929244-debug.rs
thread '<unnamed>' panicked at /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cranelift-codegen-0.104.0/src/machinst/lower.rs:766:21:
should be implemented in ISLE: inst = `v12 = smulhi.i8 v0, v0`, type = `Some(types::I8)`
stack backtrace:
0: 0x7ffff978bf86 - std::backtrace_rs::backtrace::libunwind::trace::h514ead2753e1782f
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7ffff978bf86 - std::backtrace_rs::backtrace::trace_unsynchronized::hbc462e8372651887
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7ffff978bf86 - std::sys_common::backtrace::_print_fmt::he3092ef183bdd613
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7ffff978bf86 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h908f80a389799910
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7ffff97de880 - core::fmt::rt::Argument::fmt::ha9f3d8b02e25296c
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/core/src/fmt/rt.rs:142:9
5: 0x7ffff97de880 - core::fmt::write::hef880bc86bd63d4b
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/core/src/fmt/mod.rs:1120:17
6: 0x7ffff977f94f - std::io::Write::write_fmt::h780869503f755b5a
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/io/mod.rs:1810:15
7: 0x7ffff978bd64 - std::sys_common::backtrace::_print::h52cc78326ec17ac5
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7ffff978bd64 - std::sys_common::backtrace::print::h44b4c057fd1c7c3f
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7ffff978eaf7 - std::panicking::default_hook::{{closure}}::h99cbf699c09f8685
10: 0x7ffff978e859 - std::panicking::default_hook::hbc89d54398681576
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/panicking.rs:292:9
11: 0x7ffffc54acec - std[1d0ea5b5e602c844]::panicking::update_hook::<alloc[d84df3010862da1b]::boxed::Box<rustc_driver_impl[2078f68ece4ea2b8]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7ffff978f246 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h99950b3f8a1ddee8
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/alloc/src/boxed.rs:2029:9
13: 0x7ffff978f246 - std::panicking::rust_panic_with_hook::he160495ec53b11e6
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/panicking.rs:785:13
14: 0x7ffff978ef92 - std::panicking::begin_panic_handler::{{closure}}::ha86f6320ad4cac49
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/panicking.rs:659:13
15: 0x7ffff978c486 - std::sys_common::backtrace::__rust_end_short_backtrace::h19c3911246e5b7ea
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7ffff978ece4 - rust_begin_unwind
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/panicking.rs:647:5
17: 0x7ffff97daf85 - core::panicking::panic_fmt::hd869deda4756f0c1
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/core/src/panicking.rs:72:14
18: 0x7ffff06f38f8 - cranelift_codegen::machinst::lower::Lower<I>::lower::hf5680db6e8da6825
19: 0x7ffff05d6739 - cranelift_codegen::machinst::compile::compile::h5311fd7207db3d5c
20: 0x7ffff06936f5 - <cranelift_codegen::isa::x64::X64Backend as cranelift_codegen::isa::TargetIsa>::compile_function::h590f11e5c6d2c4ff
21: 0x7ffff0709f5b - cranelift_codegen::context::Context::compile_stencil::h96dc3cd783467e94
22: 0x7ffff0709c37 - cranelift_codegen::context::Context::compile_and_emit::h593fc7e7957fe7fc
23: 0x7ffff0499eca - <cranelift_object::backend::ObjectModule as cranelift_module::module::Module>::define_function_with_control_plane::hc9ac75d45c4de148
24: 0x7ffff03e4ec3 - cranelift_module::module::Module::define_function::hb378a4ac6a6da2a5
25: 0x7ffff046fd8d - rustc_codegen_cranelift::base::compile_fn::he5118887952ffc76
26: 0x7ffff042c8ab - std::sys_common::backtrace::__rust_begin_short_backtrace::h37b57af66c3e318c
27: 0x7ffff0429604 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb385e8dc4fe3342d
28: 0x7ffff9798835 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hba0b80fd74ce5417
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/alloc/src/boxed.rs:2015:9
29: 0x7ffff9798835 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0ab2d213dcdff51c
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/alloc/src/boxed.rs:2015:9
30: 0x7ffff9798835 - std::sys::pal::unix::thread::Thread::new::thread_start::h7eeca5a8e186b7ad
at /rustc/e7bbe8ce933123a8e327c79e38bcb790595e6a65/library/std/src/sys/pal/unix/thread.rs:108:17
31: 0x7ffff9586897 - start_thread
32: 0x7ffff960d564 - __GI___clone
33: 0x0 - <unknown>
error: the compiler unexpectedly panicked. this is a bug.
note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly
note: please attach the file at `/root/rustlantis-repros/rustc-ice-2024-02-03T11_40_43-99834.txt` to your bug report
note: compiler flags: -C panic=abort -Z panic-abort-tests -Z codegen-backend=/root/rustc_codegen_cranelift/dist/lib/librustc_codegen_cranelift.so -Z mir-opt-level=0 -C opt-level=3
query stack during panic:
end of query stack
warning: 2 warnings emitted
On latest cdae185
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