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Merge commit 'dec0daa8f6d0a0e1c702f169abb6bf3eee198c67' into sync_cg_clif-2023-03-15

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bjorn3
2023-03-15 14:41:48 +00:00
parent 992d154f3a dec0daa8f6
commit fce629d2e9
52 changed files with 873 additions and 792 deletions
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21
compiler/rustc_codegen_cranelift/src/vtable.rs
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@@ -43,10 +43,29 @@ pub(crate) fn min_align_of_obj(fx: &mut FunctionCx<'_, '_, '_>, vtable: Value) -
pub(crate) fn get_ptr_and_method_ref<'tcx>(
fx: &mut FunctionCx<'_, '_, 'tcx>,
arg: CValue<'tcx>,
mut arg: CValue<'tcx>,
idx: usize,
) -> (Pointer, Value) {
let (ptr, vtable) = 'block: {
if let Abi::Scalar(_) = arg.layout().abi {
'descend_newtypes: while !arg.layout().ty.is_unsafe_ptr()
&& !arg.layout().ty.is_region_ptr()
{
for i in 0..arg.layout().fields.count() {
let field = arg.value_field(fx, mir::Field::new(i));
if !field.layout().is_zst() {
// we found the one non-zero-sized field that is allowed
// now find *its* non-zero-sized field, or stop if it's a
// pointer
arg = field;
continue 'descend_newtypes;
}
}
bug!("receiver has no non-zero-sized fields {:?}", arg);
}
}
if let ty::Ref(_, ty, _) = arg.layout().ty.kind() {
if ty.is_dyn_star() {
let inner_layout = fx.layout_of(arg.layout().ty.builtin_deref(true).unwrap().ty);