Struct cranelift_codegen::isa::RecipeConstraints [−][src]
pub struct RecipeConstraints { pub ins: &'static [OperandConstraint], pub outs: &'static [OperandConstraint], pub fixed_ins: bool, pub fixed_outs: bool, pub tied_ops: bool, pub clobbers_flags: bool, }
Expand description
Value operand constraints for an encoding recipe.
Fields
ins: &'static [OperandConstraint]
Constraints for the instruction’s fixed value operands.
If the instruction takes a variable number of operands, the register constraints for those operands must be computed dynamically.
- For branches and jumps, block arguments must match the expectations of the destination block.
- For calls and returns, the calling convention ABI specifies constraints.
outs: &'static [OperandConstraint]
Constraints for the instruction’s fixed results.
If the instruction produces a variable number of results, it’s probably a call and the constraints must be derived from the calling convention ABI.
fixed_ins: bool
Are any of the input constraints FixedReg
or FixedTied
?
fixed_outs: bool
Are any of the output constraints FixedReg
or FixedTied
?
tied_ops: bool
Are any of the input/output constraints Tied
(but not FixedTied
)?
clobbers_flags: bool
Does this instruction clobber the CPU flags?
When true, SSA values of type iflags
or fflags
can not be live across the instruction.
Implementations
Trait Implementations
impl Clone for RecipeConstraints
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impl Clone for RecipeConstraints
[src]fn clone(&self) -> RecipeConstraints
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fn clone(&self) -> RecipeConstraints
[src]Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
1.0.0[src]Performs copy-assignment from source
. Read more
impl PartialEq<RecipeConstraints> for RecipeConstraints
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impl PartialEq<RecipeConstraints> for RecipeConstraints
[src]fn eq(&self, other: &RecipeConstraints) -> bool
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fn eq(&self, other: &RecipeConstraints) -> bool
[src]This method tests for self
and other
values to be equal, and is used
by ==
. Read more
fn ne(&self, other: &RecipeConstraints) -> bool
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fn ne(&self, other: &RecipeConstraints) -> bool
[src]This method tests for !=
.
impl StructuralPartialEq for RecipeConstraints
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Auto Trait Implementations
impl RefUnwindSafe for RecipeConstraints
impl Send for RecipeConstraints
impl Sync for RecipeConstraints
impl Unpin for RecipeConstraints
impl UnwindSafe for RecipeConstraints
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more