Error when using a function with const generics with a literal parameter

[calixteman]

Code

#![feature(const_generics)]

struct Foo;

impl Foo {
    fn foo<const N: usize>(&self) {}
}

fn main() {
    Foo.foo::<0usize>();
}

Meta

rustc --version --verbose:

rustc 1.44.0-nightly (14b15521c 2020-04-23)
binary: rustc
commit-hash: 14b15521c52549ebbb113173b4abecd124b5a823
commit-date: 2020-04-23
host: x86_64-unknown-linux-gnu
release: 1.44.0-nightly
LLVM version: 9.0

Error output

   Compiling plop v0.1.0 (/tmp/plop)
warning: the feature `const_generics` is incomplete and may cause the compiler to crash
 --> src/main.rs:1:12
  |
1 | #![feature(const_generics)]
  |            ^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default

error: internal compiler error: src/librustc_codegen_llvm/context.rs:850: failed to get layout for `[type error]`: the type `[type error]` has an unknown layout

thread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:904:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.44.0-nightly (14b15521c 2020-04-23) running on x86_64-unknown-linux-gnu

note: compiler flags: -C bitcode-in-rlib=no -C debuginfo=2 -C incremental --crate-type bin

note: some of the compiler flags provided by cargo are hidden

error: aborting due to previous error; 1 warning emitted

error: could not compile `plop`.

To learn more, run the command again with --verbose.

Backtrace

thread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:904:9
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/git.luolix.top-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/git.luolix.top-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:78
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1069
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1504
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:198
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:218
  10: rustc_driver::report_ice
  11: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:515
  12: std::panicking::begin_panic
  13: rustc_errors::HandlerInner::bug
  14: rustc_errors::Handler::bug
  15: rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}
  16: rustc_middle::ty::context::tls::with_opt::{{closure}}
  17: rustc_middle::ty::context::tls::with_opt
  18: rustc_middle::util::bug::opt_span_bug_fmt
  19: rustc_middle::util::bug::bug_fmt
  20: <rustc_codegen_llvm::context::CodegenCx as rustc_target::abi::LayoutOf>::spanned_layout_of::{{closure}}
  21: <rustc_codegen_llvm::context::CodegenCx as rustc_target::abi::LayoutOf>::spanned_layout_of
  22: rustc_codegen_ssa::mir::analyze::non_ssa_locals
  23: rustc_codegen_ssa::mir::codegen_mir
  24: <rustc_middle::mir::mono::MonoItem as rustc_codegen_ssa::mono_item::MonoItemExt>::define
  25: rustc_codegen_llvm::base::compile_codegen_unit::module_codegen
  26: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
  27: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
  28: rustc_codegen_llvm::base::compile_codegen_unit
  29: rustc_codegen_ssa::base::codegen_crate
  30: <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_ssa::traits::backend::CodegenBackend>::codegen_crate
  31: rustc_session::utils::<impl rustc_session::session::Session>::time
  32: rustc_interface::passes::start_codegen
  33: rustc_middle::ty::context::tls::enter_global
  34: rustc_interface::queries::Queries::ongoing_codegen
  35: rustc_interface::interface::run_compiler_in_existing_thread_pool
  36: scoped_tls::ScopedKey<T>::set
  37: rustc_ast::attr::with_globals

[varkor]

Probably fixed by #71154.

[lcnr]

fixed by #74113. We already have a nearly identical test similar tests so I am closing this without adding a regression test