cranelift::prelude

Enum FloatCC

pub enum FloatCC {
Show 14 variants Ordered, Unordered, Equal, NotEqual, OrderedNotEqual, UnorderedOrEqual, LessThan, LessThanOrEqual, GreaterThan, GreaterThanOrEqual, UnorderedOrLessThan, UnorderedOrLessThanOrEqual, UnorderedOrGreaterThan, UnorderedOrGreaterThanOrEqual,
}
Expand description

Condition code for comparing floating point numbers.

This condition code is used by the fcmp instruction to compare floating point values. Two IEEE floating point values relate in exactly one of four ways:

  1. UN - unordered when either value is NaN.
  2. EQ - equal numerical value.
  3. LT - x is less than y.
  4. GT - x is greater than y.

Note that 0.0 and -0.0 relate as EQ because they both represent the number 0.

The condition codes described here are used to produce a single boolean value from the comparison. The 14 condition codes here cover every possible combination of the relation above except the impossible !UN & !EQ & !LT & !GT and the always true UN | EQ | LT | GT.

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Ordered

EQ | LT | GT

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Unordered

UN

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Equal

EQ

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NotEqual

The C ‘!=’ operator is the inverse of ‘==’: NotEqual. UN | LT | GT

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OrderedNotEqual

LT | GT

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UnorderedOrEqual

UN | EQ

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LessThan

LT

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LessThanOrEqual

LT | EQ

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GreaterThan

GT

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GreaterThanOrEqual

GT | EQ

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UnorderedOrLessThan

UN | LT

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UnorderedOrLessThanOrEqual

UN | LT | EQ

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UnorderedOrGreaterThan

UN | GT

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UnorderedOrGreaterThanOrEqual

UN | GT | EQ

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impl FloatCC

pub fn all() -> &'static [FloatCC]

Returns a slice with all possible FloatCC values.

Trait Implementations§

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impl Clone for FloatCC

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fn clone(&self) -> FloatCC

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl CondCode for FloatCC

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fn complement(self) -> FloatCC

Get the complemented condition code of self. Read more
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fn swap_args(self) -> FloatCC

Get the swapped args condition code for self. Read more
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impl Debug for FloatCC

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for FloatCC

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fn deserialize<__D>( __deserializer: __D, ) -> Result<FloatCC, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Display for FloatCC

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl From<FloatCC> for FcmpImm

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fn from(cond: FloatCC) -> FcmpImm

Converts to this type from the input type.
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impl FromStr for FloatCC

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type Err = ()

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<FloatCC, <FloatCC as FromStr>::Err>

Parses a string s to return a value of this type. Read more
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impl Hash for FloatCC

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for FloatCC

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fn eq(&self, other: &FloatCC) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for FloatCC

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for FloatCC

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impl Eq for FloatCC

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impl StructuralPartialEq for FloatCC

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,