diff options
Diffstat (limited to 'compiler/rustc_const_eval/src/const_eval/valtrees.rs')
| -rw-r--r-- | compiler/rustc_const_eval/src/const_eval/valtrees.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/compiler/rustc_const_eval/src/const_eval/valtrees.rs b/compiler/rustc_const_eval/src/const_eval/valtrees.rs index a73f778d4..4d54c0183 100644 --- a/compiler/rustc_const_eval/src/const_eval/valtrees.rs +++ b/compiler/rustc_const_eval/src/const_eval/valtrees.rs @@ -8,7 +8,7 @@ use crate::interpret::{ use crate::interpret::{MPlaceTy, Value}; use rustc_middle::ty::{self, ScalarInt, Ty, TyCtxt}; use rustc_span::source_map::DUMMY_SP; -use rustc_target::abi::{Align, VariantIdx}; +use rustc_target::abi::{Align, FieldIdx, VariantIdx, FIRST_VARIANT}; #[instrument(skip(ecx), level = "debug")] fn branches<'tcx>( @@ -412,7 +412,8 @@ fn valtree_into_mplace<'tcx>( let inner_ty = match ty.kind() { ty::Adt(def, substs) => { - def.variant(VariantIdx::from_u32(0)).fields[i].ty(tcx, substs) + let i = FieldIdx::from_usize(i); + def.variant(FIRST_VARIANT).fields[i].ty(tcx, substs) } ty::Tuple(inner_tys) => inner_tys[i], _ => bug!("unexpected unsized type {:?}", ty), |