Code change:
<!-- [31mICE[0m: Rustc '-Zincremental-verify-ich=yes -Cincremental=<dir-Cdebuginfo=2' 'error: internal compiler error: Unexpected node AnonConst(AnonConst { hirid: HirId(DefId(0:3 ~ [9608]::Trait).5), defid: DefId(0:5 ~ [9608]::Trait::{constant}), body: BodyId { hirid: HirId(DefId(0:3 ~ [9608]::Trait).6) } })', 'error: internal compiler error: Unexpected node AnonConst(AnonConst { hirid: HirId(DefId(0:3 ~ [9608]::Trait).5), defid: DefId(0:5 ~ [9608]::Trait::{constant}), body: BodyId { hirid: HirId(DefId(0:3 ~ [9608]::Trait).6) } })' File: --auto-reduced (treereduce-rust): original: Version information ` Command: <!-- Include a backtrace in the code block by setting in your environment. E.g. . --<details<summary<strongProgram output</strong</summary<p</p</details<!-- query stack: note: compiler flags: -Z incremental-verify-ich=yes -C incremental=[REDACTED] -C debuginfo=2 [diagnostichirwfcheck] performing HIR wf-checking for predicate at item [typeck] type-checking [checkmatch] match-checking [mirbuilt] building MIR for [mirconst] preparing for borrow checking [mirconstqualif] const checking [mirpromoted] promoting constants in MIR for [mirborrowck] borrow-checking [mirdropselaboratedandconstchecked] elaborating drops for [mirforctfe] caching mir of for CTFE [evaltoallocationraw] const-evaluating + checking [evaltovaltree] evaluating type-level constant [checkwellformed] checking that is well-formed [checkmodtypewf] checking that types are well-formed in top-level module [analysis] running analysis passes on this crate --<!-- TRIAGEBOTSTART --<!-- TRIAGEBOTASSIGNSTART --<!-- TRIAGEBOTASSIGNDATASTARTTRIAGEBOTASSIGNDATAEND --<!-- TRIAGEBOTASSIGNEND --<!-- TRIAGEBOTEND --
This seeeems to bisect to :thinking: cc
Thanks Will take a look. claim
Reduced further:
the original (none reduced) one still ices :sweat_smile:
From what I can tell, it seems to have been fixed : Looks like I'm missing something
I have now opened PR to test the below original reproducer:
Sorry for causing the issue to be closed via the PR merge without asking you first. If you still believe the ICE is not fixed please reopen it.

Related discussion:
text: <ins> error[E0403]: the name `N` is already used for a generic parameter in this item's generic parameters --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:18 | LL | trait Trait<const N: Trait = bar> { |                   - first use of `N` ... LL |     fn fnc<const N: Trait = u32>(&self) -> Trait { |                  ^ already used </ins> error[E0425]: cannot find value `bar` in this scope --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:30 | LL | trait Trait<const N: Trait = bar> { |                              ^^^ not found in this scope <ins> error[E0423]: expected value, found builtin type `u32` --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:13:29 | LL |     fn fnc<const N: Trait = u32>(&self) -> Trait { |                             ^^^ not a value error[E0425]: cannot find value `bar` in this scope --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:26:9 | LL |         bar |         ^^^ not found in this scope </ins> warning: trait objects without an explicit `dyn` are deprecated --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22 |