Struct rustc_codegen_ssa::mir::operand::OperandRef
source · pub struct OperandRef<'tcx, V> {
pub val: OperandValue<V>,
pub layout: TyAndLayout<'tcx>,
}
Expand description
An OperandRef
is an “SSA” reference to a Rust value, along with
its type.
NOTE: unless you know a value’s type exactly, you should not
generate LLVM opcodes acting on it and instead act via methods,
to avoid nasty edge cases. In particular, using Builder::store
directly is sure to cause problems – use OperandRef::store
instead.
Fields§
§val: OperandValue<V>
The value.
layout: TyAndLayout<'tcx>
The layout of value, based on its Rust type.
Implementations§
source§impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V>
impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V>
pub fn zero_sized(layout: TyAndLayout<'tcx>) -> OperandRef<'tcx, V>
pub fn from_const<Bx: BuilderMethods<'a, 'tcx, Value = V>>( bx: &mut Bx, val: ConstValue<'tcx>, ty: Ty<'tcx>, ) -> Self
fn from_const_alloc<Bx: BuilderMethods<'a, 'tcx, Value = V>>( bx: &mut Bx, layout: TyAndLayout<'tcx>, alloc: ConstAllocation<'tcx>, offset: Size, ) -> Self
sourcepub fn immediate(self) -> V
pub fn immediate(self) -> V
Asserts that this operand refers to a scalar and returns a reference to its value.
sourcepub fn deref<Cx: LayoutTypeMethods<'tcx>>(self, cx: &Cx) -> PlaceRef<'tcx, V>
pub fn deref<Cx: LayoutTypeMethods<'tcx>>(self, cx: &Cx) -> PlaceRef<'tcx, V>
Asserts that this operand is a pointer (or reference) and returns the place to which it points. (This requires no code to be emitted as we represent places using the pointer to the place.)
This uses Ty::builtin_deref
to include the type of the place and
assumes the place is aligned to the pointee’s usual ABI alignment.
If you don’t need the type, see OperandValue::pointer_parts
or OperandValue::deref
.
sourcepub fn immediate_or_packed_pair<Bx: BuilderMethods<'a, 'tcx, Value = V>>(
self,
bx: &mut Bx,
) -> V
pub fn immediate_or_packed_pair<Bx: BuilderMethods<'a, 'tcx, Value = V>>( self, bx: &mut Bx, ) -> V
If this operand is a Pair
, we return an aggregate with the two values.
For other cases, see immediate
.
sourcepub fn from_immediate_or_packed_pair<Bx: BuilderMethods<'a, 'tcx, Value = V>>(
bx: &mut Bx,
llval: V,
layout: TyAndLayout<'tcx>,
) -> Self
pub fn from_immediate_or_packed_pair<Bx: BuilderMethods<'a, 'tcx, Value = V>>( bx: &mut Bx, llval: V, layout: TyAndLayout<'tcx>, ) -> Self
If the type is a pair, we return a Pair
, otherwise, an Immediate
.
pub fn extract_field<Bx: BuilderMethods<'a, 'tcx, Value = V>>( &self, bx: &mut Bx, i: usize, ) -> Self
Trait Implementations§
source§impl<'tcx, V: Clone> Clone for OperandRef<'tcx, V>
impl<'tcx, V: Clone> Clone for OperandRef<'tcx, V>
source§fn clone(&self) -> OperandRef<'tcx, V>
fn clone(&self) -> OperandRef<'tcx, V>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<V: CodegenObject> Debug for OperandRef<'_, V>
impl<V: CodegenObject> Debug for OperandRef<'_, V>
impl<'tcx, V: Copy> Copy for OperandRef<'tcx, V>
Auto Trait Implementations§
impl<'tcx, V> Freeze for OperandRef<'tcx, V>where
V: Freeze,
impl<'tcx, V> !RefUnwindSafe for OperandRef<'tcx, V>
impl<'tcx, V> Send for OperandRef<'tcx, V>where
V: Send,
impl<'tcx, V> Sync for OperandRef<'tcx, V>where
V: Sync,
impl<'tcx, V> Unpin for OperandRef<'tcx, V>where
V: Unpin,
impl<'tcx, V> !UnwindSafe for OperandRef<'tcx, V>
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
impl<T> MaybeSendSync for T
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.