Avoid a FieldIdx::from_usize in InstSimplify

2024-05-26 13:16:36 -07:00
parent b0925697fd
commit d37f456b2a
2 changed files with 4 additions and 5 deletions
--- a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs
+++ b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs
@@ -142,10 +142,10 @@ impl<'tcx> ValueAnalysis<'tcx> for ConstAnalysis<'_, 'tcx> {
                    _ => return,
                };
                if let Some(variant_target_idx) = variant_target {
-                    for (field_index, operand) in operands.iter().enumerate() {
+                    for (field_index, operand) in operands.iter_enumerated() {
                        if let Some(field) = self.map().apply(
                            variant_target_idx,
-                            TrackElem::Field(FieldIdx::from_usize(field_index)),
+                            TrackElem::Field(field_index),
                        ) {
                            self.assign_operand(state, field, operand);
                        }