[Migrated] Compiling uom crashes the compiler
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Description
Issue automatically imported from old repo: https://github.com/EmbarkStudios/rust-gpu/issues/1150
Old labels: t: bug
Originally creatd by JensGM on 2024-05-21T12:17:15Z
Expected Behaviour
Compile doesn't fail
Example & Steps To Reproduce
- Write a shader with a dependency on uom
System Info
- Rust: rustc 1.74.0-nightly (8ce4540bd 2023-09-29)
- OS: macos 14.5 (23F79)
- GPU: m1 pro
Backtrace
Updating crates.io index Compiling uom v0.36.0 thread 'rustc' panicked at /Users/jens/sources/rust-gpu/crates/rustc_codegen_spirv/src/builder/builder_methods.rs:521:34: attempt to divide by zero stack backtrace: 0: 0x1052144dc - ::fmt::h8895b8b562a90ee4 1: 0x105267f58 - core::fmt::write::h7a9cc4d1d610bd71 2: 0x10520a08c - std::io::Write::write_fmt::h87ff59bc697656ff 3: 0x10521431c - std::sys_common::backtrace::print::ha692d990665b4a43 4: 0x105216f18 - std::panicking::default_hook::{{closure}}::hf23c7dbcec5e5d80 5: 0x105216c30 - std::panicking::default_hook::h6d5fe0c884e09021 6: 0x10d7596fc - as core[49eafda268333cb]::ops::function::Fn<(&dyn for<'a, 'b> core[49eafda268333cb]::ops::func tion::Fn<(&'a core[49eafda268333cb]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[49eafda268333cb]::marker::Sync + core[49eafda268333cb]::marker::Send, &core[49eafda268333cb]::panic::panic_info::PanicInfo)>>::call 7: 0x10d7596fc - as core[49eafda268333cb]::ops::function::Fn<(&dyn for<'a, 'b> core[49eafda268333cb]::ops::func tion::Fn<(&'a core[49eafda268333cb]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[49eafda268333cb]::marker::Sync + core[49eafda268333cb]::marker::Send, &core[49eafda268333cb]::panic::panic_info::PanicInfo)>>::call 8: 0x1052176b0 - std::panicking::rust_panic_with_hook::h7c3b2a0098acc318 9: 0x10521743c - std::panicking::begin_panic_handler::{{closure}}::h5a56c37d4253c5c6 10: 0x105214968 - std::sys_common::backtrace::__rust_end_short_backtrace::h6240b1fcaf592476 11: 0x1052171e8 - _rust_begin_unwind 12: 0x1052932c0 - core::panicking::panic_fmt::h665dccaf061d2198 13: 0x105293334 - core::panicking::panic::he1ba182bf716bbc2 14: 0x106c7099c - rustc_codegen_spirv::builder::builder_methods::::recover_access_chain_from_offset::he6b0c04ddb3305e7 15: 0x106c76c2c - rustc_codegen_spirv::builder::builder_methods::::pointercast::h9cc3e414ef1f966a 16: 0x106c75fe0 - rustc_codegen_spirv::builder::builder_methods::::bitcast::h95bef7ee067e6e52 17: 0x106c72388 - rustc_codegen_spirv::builder::builder_methods::::ret::hea66e4be1e6f30df 18: 0x106c37b04 - rustc_codegen_ssa::mir::block::>::codegen_terminator::ha5211e4b8b8ed3fc 19: 0x106c34f08 - rustc_codegen_ssa::mir::codegen_mir::h680cf704b650ab2a 20: 0x106cc9080 - rustc_codegen_ssa::base::codegen_instance::hf2c0f9e676c3fe71 21: 0x106c0e9b4 - ::define::hf389f7022ecbfada 22: 0x106c24f6c - ::compile_codegen_unit::{{closure}}::h0218353bb7111ed5 23: 0x106c2491c - ::compile_codegen_unit::h91c26f9a6763dca3 24: 0x106cc8a9c - rustc_codegen_ssa::base::codegen_crate::h54fbe7881ae09c5c 25: 0x106c23ccc - ::codegen_crate::ha25804fa111ed196 26: 0x10d8bb7d4 - ::time::, rustc_interface[698431996f4b6697]::passes::start_codegen::{closur e#0}> 27: 0x10d89dd28 - rustc_interface[698431996f4b6697]::passes::start_codegen 28: 0x10d8bf5e4 - ::enter::<::ongoing_codegen::{closure#0}, core[49eafda268333cb]::result::Result, rustc_span[de8f35f4add29872]::ErrorGuaranteed>> 29: 0x10d88f4a0 - ::ongoing_codegen 30: 0x10d7860b4 - rustc_span[de8f35f4add29872]::set_source_map::, rustc_interface[698431996f4b6697]::interface::run_compiler, rustc_driver_impl[19b3a9f15fe02931]::run_compiler::{closure#1}>::{closure#0}::{closure#0}> 31: 0x10d757618 - std[3254da1c1438db11]::sys_common::backtrace::__rust_begin_short_backtrace::, rustc_driver_impl[19b3a9f15fe02931]::run_compiler::{closure#1}>::{closure#0}, core[49eafda268333cb]::result::Result<(), rustc_span[de 8f35f4add29872]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[49eafda268333cb]::result::Result<(), rustc_span[de8f35f4add29872]::ErrorGuaranteed>> 32: 0x10d758738 - <::spawn_unchecked_, rustc_driver_impl[19b3a9f15fe02931]::run_compiler::{closure#1}>::{closure#0}, core[49eafda268333cb]::result::Result<(), rustc_span[de8f35f4add29872]:: ErrorGuaranteed>>::{closure#0}::{closure#0}, core[49eafda268333cb]::result::Result<(), rustc_span[de8f35f4add29872]::ErrorGuaranteed>>::{closure#1} as core[49eafda268333cb]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 33: 0x105220558 - std::sys::unix::thread::Thread::new::thread_start::h86fccd826fc7dcb1 34: 0x197ecaf94 - __pthread_joiner_wake
<backtrace>
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the crash with a Rust shader that depends on uom v0.36.0, using the reported compiler and environment details as a baseline. Start in crates/rustc_codegen_spirv/src/builder/builder_methods.rs at recover_access_chain_from_offset, where the backtrace reports division by zero. Done means compiling the uom-dependent shader no longer panics.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100