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ICE: "to_immediate: expected Operand::Immediate, got Indirect" #54541
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I have the error with nightly and beta.
Does this mean that you do not see the error on stable? Are you able to provide a test case?
Sorry, I hadn't tested yet with stable. I just did, and with stable (rustc 1.29.0 (aa3ca19 2018-09-11) running on armv7-unknown-linux-gnueabihf) it also crashes, but now giving a different compiler error:
error: internal compiler error: librustc_mir/transform/const_prop.rs:619: const index not primitive: (ByRef(Ptr(Pointer { alloc_id: AllocId(12268), offset: Size { raw: 0 } }), Align { abi_pow2: 2, pref_pow2: 2 }), TyLayout { ty: usize, details: LayoutDetails { variants: Single { index: 0 }, fields: Union(0), abi: Scalar(Scalar { value: Int(I32, false), valid_range: 0..=4294967295 }), align: Align { abi_pow2: 2, pref_pow2: 2 }, size: Size { raw: 4 } } }, src/medium.rs:431:69: 431:91)Do you have any pointers on how I can efficiently find out where in my code I have to look to isolate the offending code? I have no idea how to figure out a test case, as the crate contains a lot of code.
Can you confirm that an older compiler version still works and successfully compiles your code?
I believe it was caused by this change, as
to_immediatepanics in this way:ad2de8b#diff-9e103702275cbef342c2decd3395bf3bR578
CC @RalfJung
- changed the title
[-]internal compiler error[/-][+]ICE: to_immediate: expected Operand::Immediate, got Indirect"[/+]on Sep 25, 2018 - changed the title
[-]ICE: to_immediate: expected Operand::Immediate, got Indirect"[/-][+]ICE: "to_immediate: expected Operand::Immediate, got Indirect"[/+]on Sep 25, 2018 rustup install 1.28.0 && rustup default 1.28.0 && cargo build --release
compiles without errorsI am afraid it is very hard to do anything without a way to reproduce the problem. It would be great if you could attempt to remove module by module from your crate to isolate the issue.
@jerous86 the backtrace is unfortunately not very useful because it lacks line numbers. Could you compile rustc on your machine, with
debuginfo-lines = trueinconfig.toml, and use that to compile your project and get a better backtrace?@estebank Given #54541 (comment) I think the issue is older than that. It seems it already triggered
rust/src/librustc_mir/transform/const_prop.rs
Line 619 in aa3ca19
That is really old so I do not know how this even worked with 1.28.I tried building the rust compiler, but kept on running into issues, and unfortunately don't have the time to figure it all out, just to enable the debuginfo-lines, so I am going to wait until it is enabled by default (I hope #54459 is going to get merged soon?)
I will try to figure out a minimal scenario, but it might take a while ...
I have found that the following scenario reproduces the ICE:
fn main() { enum Enum { One=1 } let xs=[0;1 as usize]; println!("{}", xs[Enum::One as usize]); }When replacing "One=1" with "One=0" it compiles without error.
That seems likely.
const_propstrikes again :/
I'm trying to compile a personal project, but the compiler crashes with the following message:
error: internal compiler error: librustc_mir/interpret/operand.rs:129: to_immediate: expected Operand::Immediate, got Indirect(MemPlace { ptr: Ptr(Pointer { alloc_id: AllocId(14642), offset: Size { raw: 0 } }), align: Align { abi_pow2: 2, pref_pow2: 2 }, extra: None })I have no idea how to isolate the code that triggers this compiler error, as it's a medium-sized project. Last time I compiled it (and then it compiled successfully) was around beginning of June.
I have the error with nightly and beta.
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Notes from cargo:
Backtrace of
RUST_BACKTRACE=1 cargo build --releaseerror: internal compiler error: librustc_mir/interpret/operand.rs:129: to_immediate: expected Operand::Immediate, got Indirect(MemPlace { ptr: Ptr(Pointer { alloc_id: AllocId(14642), offset: Size { raw: 0 } }), align: Align { abi_pow2: 2, pref_pow2: 2 }, extra: None }) thread 'main' panicked at 'Box', librustc_errors/lib.rs:586:9 stack backtrace: 0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 1: std::sys_common::backtrace::print at libstd/sys_common/backtrace.rs:71 at libstd/sys_common/backtrace.rs:59 2: std::panicking::default_hook::{{closure}} at libstd/panicking.rs:211 3: std::panicking::default_hook at libstd/panicking.rs:227 4: rustc::util::common::panic_hook 5: std::panicking::rust_panic_with_hook at libstd/panicking.rs:481 6: std::panicking::begin_panic 7: rustc_errors::Handler::bug 8: rustc::util::bug::opt_span_bug_fmt::{{closure}} 9: rustc::ty::context::tls::with_opt::{{closure}} 10: rustc::ty::context::tls::with_context_opt 11: rustc::ty::context::tls::with_opt 12: rustc::util::bug::opt_span_bug_fmt 13: rustc::util::bug::bug_fmt 14: as rustc::mir::visit::Visitor<'tcx>>::visit_terminator_kind 15: ::run_pass 16: rustc_mir::transform::optimized_mir::{{closure}} 17: rustc_mir::transform::optimized_mir 18: rustc::ty::query::__query_compute::optimized_mir 19: rustc::ty::query:: for rustc::ty::query::queries::optimized_mir<'tcx>>::compute 20: rustc::dep_graph::graph::DepGraph::with_task_impl 21: rustc::ty::context::tls::with_related_context 22: rustc::ty::query::plumbing::>::force_query_with_job 23: rustc::ty::query::plumbing::>::try_get_query 24: rustc::ty::>::instance_mir 25: rustc_mir::monomorphize::collector::collect_items_rec 26: rustc_mir::monomorphize::collector::collect_items_rec 27: rustc_mir::monomorphize::collector::collect_items_rec 28: rustc_mir::monomorphize::collector::collect_items_rec 29: rustc_mir::monomorphize::collector::collect_items_rec 30: rustc_mir::monomorphize::collector::collect_items_rec 31: rustc_mir::monomorphize::collector::collect_items_rec 32: rustc_mir::monomorphize::collector::collect_items_rec 33: rustc_mir::monomorphize::collector::collect_items_rec 34: rustc_mir::monomorphize::collector::collect_items_rec 35: rustc_mir::monomorphize::collector::collect_items_rec 36: rustc_mir::monomorphize::collector::collect_items_rec 37: rustc_mir::monomorphize::collector::collect_items_rec 38: rustc_mir::monomorphize::collector::collect_crate_mono_items::{{closure}} 39: rustc::util::common::time 40: rustc_mir::monomorphize::collector::collect_crate_mono_items 41: rustc::util::common::time 42: rustc_codegen_llvm::base::collect_and_partition_mono_items 43: rustc::ty::query:: for rustc::ty::query::queries::collect_and_partition_mono_items<'tcx>>::compute 44: rustc::dep_graph::graph::DepGraph::with_task_impl 45: rustc::ty::context::tls::with_related_context 46: rustc::ty::query::plumbing::>::force_query_with_job 47: rustc::ty::query::plumbing::>::get_query 48: rustc_codegen_llvm::base::codegen_crate 49: ::codegen_crate 50: rustc::util::common::time 51: rustc_driver::driver::phase_4_codegen 52: rustc_driver::driver::compile_input::{{closure}} 53: rustc::ty::context::tls::enter_context 54: >::with 55: rustc::ty::context::TyCtxt::create_and_enter 56: rustc_driver::driver::compile_input 57: rustc_driver::run_compiler_with_pool 58: rustc_driver::driver::spawn_thread_pool 59: rustc_driver::run_compiler 60: >::set 61: syntax::with_globals 62: __rust_maybe_catch_panic at libpanic_unwind/lib.rs:102 63: rustc_driver::run 64: rustc_driver::main 65: std::rt::lang_start::{{closure}} 66: std::panicking::try::do_call at libstd/rt.rs:59 at libstd/panicking.rs:310 67: __rust_maybe_catch_panic at libpanic_unwind/lib.rs:102 68: std::panic::catch_unwind at libstd/panicking.rs:289 at libstd/panic.rs:392 69: std::rt::lang_start_internal at libstd/rt.rs:58 70: main 71: __libc_start_main query stack during panic: #0 [optimized_mir] processing `medium::Medium::cmp` #1 [collect_and_partition_mono_items] collect_and_partition_mono_items end of query stack error: aborting due to previous error