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Avoid a FieldIdx::from_usize in InstSimplify

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Scott McMurray
2024-05-26 13:16:36 -07:00
parent b0925697fd
commit d37f456b2a
2 changed files with 4 additions and 5 deletions
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5
compiler/rustc_mir_transform/src/instsimplify.rs
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@@ -9,7 +9,6 @@ use rustc_middle::ty::layout::ValidityRequirement;
use rustc_middle::ty::{self, GenericArgsRef, ParamEnv, Ty, TyCtxt};
use rustc_span::sym;
use rustc_span::symbol::Symbol;
use rustc_target::abi::FieldIdx;
use rustc_target::spec::abi::Abi;
pub struct InstSimplify;
@@ -217,11 +216,11 @@ impl<'tcx> InstSimplifyContext<'tcx, '_> {
&& let Some(place) = operand.place()
{
let variant = adt_def.non_enum_variant();
for (i, field) in variant.fields.iter().enumerate() {
for (i, field) in variant.fields.iter_enumerated() {
let field_ty = field.ty(self.tcx, args);
if field_ty == *cast_ty {
let place = place.project_deeper(
&[ProjectionElem::Field(FieldIdx::from_usize(i), *cast_ty)],
&[ProjectionElem::Field(i, *cast_ty)],
self.tcx,
);
let operand = if operand.is_move() {