ICE: from_const: invalid ScalarPair layout: TyAndLayout #78030
Description
I'm doing really, really cursed things, so I'm not sure if this is a bug.
Code
#![allow(dead_code, unused_attributes)]
#![feature(no_core)]
#![feature(optin_builtin_traits)]
#![feature(lang_items)]
#![feature(rustc_attrs)]
#![no_core]
#[rustc_builtin_macro]
macro_rules! concat {
($($e:expr),*) => {{ /* compiler built-in */ }};
($($e:expr,)*) => {{ /* compiler built-in */ }};
}
#[lang = "sized"]
auto trait Sized { }
#[lang = "copy"]
trait Copy { }
fn f(_: &'static str) { }
#[lang = "start"]
fn start(main: fn(), _argc: isize, _argv: *const *const u8) -> isize {
main();
0
}
fn main() {
f(concat!("Hello, world! %d", "\0"));
}Meta
rustc --version --verbose:
rustc 1.48.0-nightly (7f7a1cbfd 2020-09-27)
binary: rustc
commit-hash: 7f7a1cbfd3b55daee191247770627afab09eece2
commit-date: 2020-09-27
host: x86_64-unknown-linux-gnu
release: 1.48.0-nightly
LLVM version: 11.0
Error output
error: internal compiler error: /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/compiler/rustc_codegen_ssa/src/mir/operand.rs:92:26: from_const: invalid ScalarPair layout: TyAndLayout {
ty: &str,
layout: Layout {
fields: Primitive,
variants: Single {
index: 0,
},
abi: Scalar(
Scalar {
value: Pointer,
valid_range: 1..=18446744073709551615,
},
),
largest_niche: Some(
Niche {
offset: Size {
raw: 0,
},
scalar: Scalar {
value: Pointer,
valid_range: 1..=18446744073709551615,
},
},
),
align: AbiAndPrefAlign {
abi: Align {
pow2: 3,
},
pref: Align {
pow2: 3,
},
},
size: Size {
raw: 8,
},
},
}
Backtrace
thread 'rustc' panicked at 'Box<Any>', compiler/rustc_errors/src/lib.rs:945:9
stack backtrace:
0: 0x7f698a617680 - std::backtrace_rs::backtrace::libunwind::trace::he85dfb3ae4206056
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
1: 0x7f698a617680 - std::backtrace_rs::backtrace::trace_unsynchronized::h1ad28094d7b00c21
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/../../backtrace/src/backtrace/mod.rs:66
2: 0x7f698a617680 - std::sys_common::backtrace::_print_fmt::h901b54610713cd21
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/sys_common/backtrace.rs:79
3: 0x7f698a617680 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hb0ad78ee1571f7e0
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/sys_common/backtrace.rs:58
4: 0x7f698a6855ac - core::fmt::write::h1857a60b204f1b6a
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/core/src/fmt/mod.rs:1080
5: 0x7f698a6099a2 - std::io::Write::write_fmt::hf7b7d7b243f84a36
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/io/mod.rs:1516
6: 0x7f698a61c1ed - std::sys_common::backtrace::_print::hd093978a5287b8ff
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/sys_common/backtrace.rs:61
7: 0x7f698a61c1ed - std::sys_common::backtrace::print::h20f46787581d56d7
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/sys_common/backtrace.rs:48
8: 0x7f698a61c1ed - std::panicking::default_hook::{{closure}}::h486cbb4b82ffc357
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/panicking.rs:208
9: 0x7f698a61be98 - std::panicking::default_hook::h4190c9e3edd4d591
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/panicking.rs:227
10: 0x7f698aea3e44 - rustc_driver::report_ice::h33b98c6312de22d9
11: 0x7f698a61ca36 - std::panicking::rust_panic_with_hook::h72e78719cdda225c
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/panicking.rs:581
12: 0x7f698de8809d - std::panicking::begin_panic::{{closure}}::h07c37e0eb1cdd0bd
13: 0x7f698de87fc6 - std::sys_common::backtrace::__rust_end_short_backtrace::h0e913c6e63ac7532
14: 0x7f698de824ff - std::panicking::begin_panic::hb4984aaf49f869f2
15: 0x7f698debdf40 - rustc_errors::HandlerInner::bug::hba4e38a3874f5dd8
16: 0x7f698debcaf0 - rustc_errors::Handler::bug::h9b8941b572d00bc2
17: 0x7f698d7ffea4 - rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}::ha7dea7ab2c365914
18: 0x7f698d7f96cb - rustc_middle::ty::context::tls::with_opt::{{closure}}::hd5a48179cc9a1134
19: 0x7f698d7f9042 - rustc_middle::ty::context::tls::with_opt::h4e42d527c5b50313
20: 0x7f698d7ffdc9 - rustc_middle::util::bug::opt_span_bug_fmt::h41e68724f24e37b9
21: 0x7f698d7ffd3e - rustc_middle::util::bug::bug_fmt::h38fd16a2440e0445
22: 0x7f698b1e6975 - rustc_codegen_ssa::mir::operand::OperandRef<V>::from_const::hbc52e52c77522977
23: 0x7f698b25b8ba - rustc_codegen_ssa::mir::operand::<impl rustc_codegen_ssa::mir::FunctionCx<Bx>>::codegen_operand::h46775bcf8465fe4f
24: 0x7f698b254f1d - rustc_codegen_ssa::mir::block::<impl rustc_codegen_ssa::mir::FunctionCx<Bx>>::codegen_call_terminator::h6f3acf2ae2b46a89
25: 0x7f698b24f4c6 - rustc_codegen_ssa::mir::block::<impl rustc_codegen_ssa::mir::FunctionCx<Bx>>::codegen_block::h2f244e07e56ea3d8
26: 0x7f698b24cf9e - rustc_codegen_ssa::mir::codegen_mir::h8d642bcb147d41c1
27: 0x7f698b35ec68 - rustc_codegen_ssa::base::codegen_instance::h894322accffbeb70
28: 0x7f698b1bc604 - <rustc_middle::mir::mono::MonoItem as rustc_codegen_ssa::mono_item::MonoItemExt>::define::h39a2dd069eed710b
29: 0x7f698b1ffceb - rustc_codegen_llvm::base::compile_codegen_unit::module_codegen::hb573a456da1f50eb
30: 0x7f698b2a8e8a - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task::h9e34e57f77fd95f5
31: 0x7f698b1ff80a - rustc_codegen_llvm::base::compile_codegen_unit::h6bde4cdd8ac24228
32: 0x7f698b35cc60 - rustc_codegen_ssa::base::codegen_crate::h1469a17db97addb4
33: 0x7f698b355a85 - <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_ssa::traits::backend::CodegenBackend>::codegen_crate::h213008e5539f00d1
34: 0x7f698b0f7bb1 - rustc_interface::passes::QueryContext::enter::h696fdc98b1a21464
35: 0x7f698b13af83 - rustc_interface::queries::Queries::ongoing_codegen::h14106579db5182fd
36: 0x7f698aeef454 - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::he4e35b4eaa2694c6
37: 0x7f698ae83527 - rustc_span::with_source_map::hb500901462ee52b5
38: 0x7f698aef1488 - rustc_interface::interface::create_compiler_and_run::heaaaf154744ddc30
39: 0x7f698aed692a - scoped_tls::ScopedKey<T>::set::h3b254e0349c75e04
40: 0x7f698aef3673 - std::sys_common::backtrace::__rust_begin_short_backtrace::h1aa7101e3f5fb15d
41: 0x7f698ae6f4de - core::ops::function::FnOnce::call_once{{vtable.shim}}::h31069caa752da237
42: 0x7f698a62b70a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h1080dfe0ef616bdf
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/alloc/src/boxed.rs:1042
43: 0x7f698a62b70a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd2747e1f2d5cec32
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/alloc/src/boxed.rs:1042
44: 0x7f698a62b70a - std::sys::unix::thread::Thread::new::thread_start::hd0f336b4ef6808a7
at /rustc/7f7a1cbfd3b55daee191247770627afab09eece2/library/std/src/sys/unix/thread.rs:87
45: 0x7f698a5313e9 - start_thread
46: 0x7f698a459293 - __GI___clone
47: 0x0 - <unknown>