bjoernager/rust
bjoernager/rust
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Annotate some bugs

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This commit is contained in:
Michael Goulet 2023-12-15 03:19:46 +00:00
parent 96df494340
commit 70b9dad3dc
34 changed files with 295 additions and 197 deletions
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17
compiler/rustc_hir_analysis/src/check/intrinsicck.rs
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@ -49,7 +49,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> {
16 => InlineAsmType::I16,
32 => InlineAsmType::I32,
64 => InlineAsmType::I64,
_ => unreachable!(),
width => bug!("unsupported pointer width: {width}"),
};
match *ty.kind() {
@ -101,7 +101,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> {
16 => InlineAsmType::VecI16(size),
32 => InlineAsmType::VecI32(size),
64 => InlineAsmType::VecI64(size),
_ => unreachable!(),
width => bug!("unsupported pointer width: {width}"),
})
}
ty::Float(FloatTy::F32) => Some(InlineAsmType::VecF32(size)),
@ -109,7 +109,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> {
_ => None,
}
}
ty::Infer(_) => unreachable!(),
ty::Infer(_) => bug!("unexpected infer ty in asm operand"),
_ => None,
}
}
@ -136,8 +136,15 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> {
ty::Adt(adt, args) if Some(adt.did()) == self.tcx.lang_items().maybe_uninit() => {
let fields = &adt.non_enum_variant().fields;
let ty = fields[FieldIdx::from_u32(1)].ty(self.tcx, args);
let ty::Adt(ty, args) = ty.kind() else { unreachable!() };
assert!(ty.is_manually_drop());
// FIXME: Are we just trying to map to the `T` in `MaybeUninit<T>`?
// If so, just get it from the args.
let ty::Adt(ty, args) = ty.kind() else {
unreachable!("expected first field of `MaybeUninit` to be an ADT")
};
assert!(
ty.is_manually_drop(),
"expected first field of `MaybeUnit` to be `ManuallyDrop`"
);
let fields = &ty.non_enum_variant().fields;
let ty = fields[FieldIdx::from_u32(0)].ty(self.tcx, args);
self.get_asm_ty(ty)