- Rvalue::Cast(CastKind::Misc, operand, cast_ty) => {
- use rustc_middle::ty::cast::CastTy;
- let cast_in = CastTy::from_ty(operand.ty(body, tcx)).expect("bad input type for cast");
- let cast_out = CastTy::from_ty(*cast_ty).expect("bad output type for cast");
- match (cast_in, cast_out) {
- (CastTy::Ptr(_) | CastTy::FnPtr, CastTy::Int(_)) => {
- Err((span, "casting pointers to ints is unstable in const fn".into()))
- },
- _ => check_operand(tcx, operand, span, body),
- }
+ Rvalue::Cast(CastKind::PointerExposeAddress, _, _) => {
+ Err((span, "casting pointers to ints is unstable in const fn".into()))