ScalarPair(ScalarMaybeUndef<Tag, Id>, ScalarMaybeUndef<Tag, Id>),
}
-impl<'tcx, Tag> Immediate<Tag> {
- #[inline]
- pub fn from_scalar(val: Scalar<Tag>) -> Self {
- Immediate::Scalar(ScalarMaybeUndef::Scalar(val))
+impl<Tag> From<ScalarMaybeUndef<Tag>> for Immediate<Tag> {
+ #[inline(always)]
+ fn from(val: ScalarMaybeUndef<Tag>) -> Self {
+ Immediate::Scalar(val)
}
+}
+impl<Tag> From<Scalar<Tag>> for Immediate<Tag> {
+ #[inline(always)]
+ fn from(val: Scalar<Tag>) -> Self {
+ Immediate::Scalar(val.into())
+ }
+}
+
+impl<'tcx, Tag> Immediate<Tag> {
pub fn new_slice(
val: Scalar<Tag>,
len: u64,
{
#[inline]
pub fn from_scalar(val: Scalar<Tag>, layout: TyLayout<'tcx>) -> Self {
- ImmTy { imm: Immediate::from_scalar(val), layout }
+ ImmTy { imm: val.into(), layout }
}
#[inline]
let ptr = match self.check_mplace_access(mplace, None)? {
Some(ptr) => ptr,
None => return Ok(Some(ImmTy { // zero-sized type
- imm: Immediate::Scalar(Scalar::zst().into()),
+ imm: Scalar::zst().into(),
layout: mplace.layout,
})),
};
.get(ptr.alloc_id)?
.read_scalar(self, ptr, mplace.layout.size)?;
Ok(Some(ImmTy {
- imm: Immediate::Scalar(scalar),
+ imm: scalar.into(),
layout: mplace.layout,
}))
}
let field = field.try_into().unwrap();
let field_layout = op.layout.field(self, field)?;
if field_layout.is_zst() {
- let immediate = Immediate::Scalar(Scalar::zst().into());
+ let immediate = Scalar::zst().into();
return Ok(OpTy { op: Operand::Immediate(immediate), layout: field_layout });
}
let offset = op.layout.fields.offset(field);
// extract fields from types with `ScalarPair` ABI
Immediate::ScalarPair(a, b) => {
let val = if offset.bytes() == 0 { a } else { b };
- Immediate::Scalar(val)
+ Immediate::from(val)
},
Immediate::Scalar(val) =>
bug!("field access on non aggregate {:#?}, {:#?}", val, op.layout),
Deref => self.deref_operand(base)?.into(),
Subslice { .. } | ConstantIndex { .. } | Index(_) => if base.layout.is_zst() {
OpTy {
- op: Operand::Immediate(Immediate::Scalar(Scalar::zst().into())),
+ op: Operand::Immediate(Scalar::zst().into()),
// the actual index doesn't matter, so we just pick a convenient one like 0
layout: base.layout.field(self, 0)?,
}
let layout = self.layout_of_local(frame, local, layout)?;
let op = if layout.is_zst() {
// Do not read from ZST, they might not be initialized
- Operand::Immediate(Immediate::Scalar(Scalar::zst().into()))
+ Operand::Immediate(Scalar::zst().into())
} else {
frame.locals[local].access()?
};
Operand::Indirect(MemPlace::from_ptr(ptr, align))
},
ConstValue::Scalar(x) =>
- Operand::Immediate(Immediate::Scalar(tag_scalar(x).into())),
+ Operand::Immediate(tag_scalar(x).into()),
ConstValue::Slice { data, start, end } => {
// We rely on mutability being set correctly in `data` to prevent writes
// where none should happen.