Enum qbe::Instr

pub enum Instr<'a> {
    Add(Value, Value),
    Sub(Value, Value),
    Mul(Value, Value),
    Div(Value, Value),
    Rem(Value, Value),
    Cmp(Type<'a>, Cmp, Value, Value),
    And(Value, Value),
    Or(Value, Value),
    Copy(Value),
    Ret(Option<Value>),
    Jnz(Value, String, String),
    Jmp(String),
    Call(String, Vec<(Type<'a>, Value)>),
    Alloc4(u32),
    Alloc8(u64),
    Alloc16(u128),
    Store(Type<'a>, Value, Value),
    Load(Type<'a>, Value),
    Blit(Value, Value, u64),
}

QBE instruction

Variants

Add(Value, Value)

Adds values of two temporaries together

Sub(Value, Value)

Subtracts the second value from the first one

Mul(Value, Value)

Multiplies values of two temporaries

Div(Value, Value)

Divides the first value by the second one

Rem(Value, Value)

Returns a remainder from division

Cmp(Type<'a>, Cmp, Value, Value)

Performs a comparion between values

And(Value, Value)

Performs a bitwise AND on values

Or(Value, Value)

Performs a bitwise OR on values

Copy(Value)

Copies either a temporary or a literal value

Ret(Option<Value>)

Return from a function, optionally with a value

Jnz(Value, String, String)

Jumps to first label if a value is nonzero or to the second one otherwise

Jmp(String)

Unconditionally jumps to a label

Call(String, Vec<(Type<'a>, Value)>)

Calls a function

Alloc4(u32)

Allocates a 4-byte aligned area on the stack

Alloc8(u64)

Allocates a 8-byte aligned area on the stack

Alloc16(u128)

Allocates a 16-byte aligned area on the stack

Store(Type<'a>, Value, Value)

Stores a value into memory pointed to by destination. (type, destination, value)

Load(Type<'a>, Value)

Loads a value from memory pointed to by source (type, source)

Blit(Value, Value, u64)

(source, destination, n)

Copy n bytes from the source address to the destination address.

n must be a constant value.

Minimum supported QBE version

1.1

Trait Implementations

impl<'a> Clone for Instr<'a>

fn clone(&self) -> Instr<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Instr<'a>

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

Formats the value using the given formatter.

impl<'a> Display for Instr<'a>

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

Formats the value using the given formatter.

impl<'a> Hash for Instr<'a>

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<'a> Ord for Instr<'a>

fn cmp(&self, other: &Instr<'a>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<'a> PartialEq<Instr<'a>> for Instr<'a>

fn eq(&self, other: &Instr<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialOrd<Instr<'a>> for Instr<'a>

fn partial_cmp(&self, other: &Instr<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> Eq for Instr<'a>

impl<'a> StructuralEq for Instr<'a>

impl<'a> StructuralPartialEq for Instr<'a>