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ICE: no successor #125846
Description
auto-reduced (treereduce-rust):
#![feature(inline_const_pat)]
fn foo() {
match 0 {
const {
let a = 10_usize;
let b: &'_ usize = &a;
*b
}
| _ => {}
}
}
fn main() {}
original:
#![feature(inline_const_pat)]
#![allow(dead_code)]
fn foo<const V: usize>() {
match 0 {
const {
let a = 10_usize;
let b: &'_ usize = &a;
*b
} | _ => {}
}
}
fn main() {}Version information
rustc 1.80.0-nightly (20be84a7e 2024-05-31)
binary: rustc
commit-hash: 20be84a7e62af0a623af4bfb75df6d30cb39d6d0
commit-date: 2024-05-31
host: x86_64-unknown-linux-gnu
release: 1.80.0-nightly
LLVM version: 18.1.6
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
warning: variable `a` is assigned to, but never used
--> /tmp/icemaker_global_tempdir.buabiof6KLFK/rustc_testrunner_tmpdir_reporting.VVQJc66HsGka/mvce.rs:6:17
|
6 | let a = 10_usize;
| ^
|
= note: consider using `_a` instead
= note: `#[warn(unused_variables)]` on by default
warning: variable `b` is assigned to, but never used
--> /tmp/icemaker_global_tempdir.buabiof6KLFK/rustc_testrunner_tmpdir_reporting.VVQJc66HsGka/mvce.rs:7:17
|
7 | let b: &'_ usize = &a;
| ^
|
= note: consider using `_b` instead
warning: function `foo` is never used
--> /tmp/icemaker_global_tempdir.buabiof6KLFK/rustc_testrunner_tmpdir_reporting.VVQJc66HsGka/mvce.rs:3:4
|
3 | fn foo() {
| ^^^
|
= note: `#[warn(dead_code)]` on by default
warning: 3 warnings emitted
note: no errors encountered even though delayed bugs were created
note: those delayed bugs will now be shown as internal compiler errors
error: internal compiler error: no successor
|
= note: delayed at compiler/rustc_passes/src/liveness.rs:574:35 - disabled backtrace
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: please make sure that you have updated to the latest nightly
note: rustc 1.80.0-nightly (20be84a7e 2024-05-31) running on x86_64-unknown-linux-gnu
query stack during panic:
end of query stack
@rustbot label +F-inline_const_pat
Activity
matthiaskrgr commentedon Jun 1, 2024
regression in #124650 cc @oli-obk ^^
matthiaskrgr commentedon Jun 1, 2024
smaller
Rollup merge of rust-lang#125918 - oli-obk:const_block_ice, r=compile…
Rollup merge of rust-lang#125918 - oli-obk:const_block_ice, r=compile…
Rollup merge of rust-lang#125918 - oli-obk:const_block_ice, r=compile…
Auto merge of rust-lang#125918 - oli-obk:const_block_ice, r=compiler-…
Auto merge of rust-lang#125918 - oli-obk:const_block_ice, r=compiler-…
Auto merge of #125918 - oli-obk:const_block_ice, r=compiler-errors
Auto merge of #125918 - oli-obk:const_block_ice, r=compiler-errors