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wasmtime/cranelift/interpreter/src/value.rs
Afonso Bordado a793648eb2 cranelift: Fix fdemote on the interpreter (#5158) 
* cranelift: Cleanup `fdemote`/`fpromote` tests

* cranelift: Fix `fdemote`/`fpromote` instruction docs

The verifier fails if the input and output types are the same
for these instructions

* cranelift: Fix `fdemote`/`fpromote` in the interpreter

* fuzzgen: Add `fdemote`/`fpromote`
2022-11-15 22:22:00 +00:00

728 lines
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Rust
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//! The [Value] trait describes what operations can be performed on interpreter values. The
//! interpreter usually executes using [DataValue]s so an implementation is provided here. The fact
//! that [Value] is a trait, however, allows interpretation of Cranelift IR on other kinds of
//! values.
use core::convert::TryFrom;
use core::fmt::{self, Display, Formatter};
use cranelift_codegen::data_value::{DataValue, DataValueCastFailure};
use cranelift_codegen::ir::immediates::{Ieee32, Ieee64};
use cranelift_codegen::ir::{types, Type};
use thiserror::Error;
pub type ValueResult<T> = Result<T, ValueError>;
pub trait Value: Clone + From<DataValue> {
// Identity.
fn ty(&self) -> Type;
fn int(n: i128, ty: Type) -> ValueResult<Self>;
fn into_int(self) -> ValueResult<i128>;
fn float(n: u64, ty: Type) -> ValueResult<Self>;
fn into_float(self) -> ValueResult<f64>;
fn is_float(&self) -> bool;
fn is_nan(&self) -> ValueResult<bool>;
fn bool(b: bool, vec_elem: bool, ty: Type) -> ValueResult<Self>;
fn into_bool(self) -> ValueResult<bool>;
fn vector(v: [u8; 16], ty: Type) -> ValueResult<Self>;
fn into_array(&self) -> ValueResult<[u8; 16]>;
fn convert(self, kind: ValueConversionKind) -> ValueResult<Self>;
fn concat(self, other: Self) -> ValueResult<Self>;
fn is_negative(&self) -> ValueResult<bool>;
fn is_zero(&self) -> ValueResult<bool>;
fn max(self, other: Self) -> ValueResult<Self>;
fn min(self, other: Self) -> ValueResult<Self>;
// Comparison.
fn eq(&self, other: &Self) -> ValueResult<bool>;
fn gt(&self, other: &Self) -> ValueResult<bool>;
fn ge(&self, other: &Self) -> ValueResult<bool> {
Ok(self.eq(other)? || self.gt(other)?)
}
fn lt(&self, other: &Self) -> ValueResult<bool> {
other.gt(self)
}
fn le(&self, other: &Self) -> ValueResult<bool> {
Ok(other.eq(self)? || other.gt(self)?)
}
fn uno(&self, other: &Self) -> ValueResult<bool>;
// Arithmetic.
fn add(self, other: Self) -> ValueResult<Self>;
fn sub(self, other: Self) -> ValueResult<Self>;
fn mul(self, other: Self) -> ValueResult<Self>;
fn div(self, other: Self) -> ValueResult<Self>;
fn rem(self, other: Self) -> ValueResult<Self>;
fn sqrt(self) -> ValueResult<Self>;
fn fma(self, a: Self, b: Self) -> ValueResult<Self>;
fn abs(self) -> ValueResult<Self>;
fn checked_add(self, other: Self) -> ValueResult<Option<Self>>;
// Float operations
fn neg(self) -> ValueResult<Self>;
fn copysign(self, sign: Self) -> ValueResult<Self>;
fn ceil(self) -> ValueResult<Self>;
fn floor(self) -> ValueResult<Self>;
fn trunc(self) -> ValueResult<Self>;
fn nearest(self) -> ValueResult<Self>;
// Saturating arithmetic.
fn add_sat(self, other: Self) -> ValueResult<Self>;
fn sub_sat(self, other: Self) -> ValueResult<Self>;
// Bitwise.
fn shl(self, other: Self) -> ValueResult<Self>;
fn ushr(self, other: Self) -> ValueResult<Self>;
fn ishr(self, other: Self) -> ValueResult<Self>;
fn rotl(self, other: Self) -> ValueResult<Self>;
fn rotr(self, other: Self) -> ValueResult<Self>;
fn and(self, other: Self) -> ValueResult<Self>;
fn or(self, other: Self) -> ValueResult<Self>;
fn xor(self, other: Self) -> ValueResult<Self>;
fn not(self) -> ValueResult<Self>;
// Bit counting.
fn count_ones(self) -> ValueResult<Self>;
fn leading_ones(self) -> ValueResult<Self>;
fn leading_zeros(self) -> ValueResult<Self>;
fn trailing_zeros(self) -> ValueResult<Self>;
fn reverse_bits(self) -> ValueResult<Self>;
fn swap_bytes(self) -> ValueResult<Self>;
}
#[derive(Error, Debug, PartialEq)]
pub enum ValueError {
#[error("unable to convert type {1} into class {0}")]
InvalidType(ValueTypeClass, Type),
#[error("unable to convert value into type {0}")]
InvalidValue(Type),
#[error("unable to convert to primitive integer")]
InvalidInteger(#[from] std::num::TryFromIntError),
#[error("unable to cast data value")]
InvalidDataValueCast(#[from] DataValueCastFailure),
#[error("performed a division by zero")]
IntegerDivisionByZero,
#[error("performed a operation that overflowed this integer type")]
IntegerOverflow,
}
#[derive(Debug, PartialEq)]
pub enum ValueTypeClass {
Integer,
Boolean,
Float,
Vector,
}
impl Display for ValueTypeClass {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
match self {
ValueTypeClass::Integer => write!(f, "integer"),
ValueTypeClass::Boolean => write!(f, "boolean"),
ValueTypeClass::Float => write!(f, "float"),
ValueTypeClass::Vector => write!(f, "vector"),
}
}
}
#[derive(Debug, Clone)]
pub enum ValueConversionKind {
/// Throw a [ValueError] if an exact conversion to [Type] is not possible; e.g. in `i32` to
/// `i16`, convert `0x00001234` to `0x1234`.
Exact(Type),
/// Truncate the value to fit into the specified [Type]; e.g. in `i16` to `i8`, `0x1234` becomes
/// `0x34`.
Truncate(Type),
/// Similar to Truncate, but extracts from the top of the value; e.g. in a `i32` to `u8`,
/// `0x12345678` becomes `0x12`.
ExtractUpper(Type),
/// Convert to a larger integer type, extending the sign bit; e.g. in `i8` to `i16`, `0xff`
/// becomes `0xffff`.
SignExtend(Type),
/// Convert to a larger integer type, extending with zeroes; e.g. in `i8` to `i16`, `0xff`
/// becomes `0x00ff`.
ZeroExtend(Type),
/// Convert a signed integer to its unsigned value of the same size; e.g. in `i8` to `u8`,
/// `0xff` (`-1`) becomes `0xff` (`255`).
ToUnsigned,
/// Convert an unsigned integer to its signed value of the same size; e.g. in `u8` to `i8`,
/// `0xff` (`255`) becomes `0xff` (`-1`).
ToSigned,
/// Convert a floating point number by rounding to the nearest possible value with ties to even.
/// See `fdemote`, e.g.
RoundNearestEven(Type),
/// Converts an integer into a boolean, zero integers are converted into a
/// `false`, while other integers are converted into `true`. Booleans are passed through.
ToBoolean,
/// Converts an integer into either -1 or zero.
Mask(Type),
}
/// Helper for creating match expressions over [DataValue].
macro_rules! unary_match {
( $op:ident($arg1:expr); [ $( $data_value_ty:ident ),* ]; [ $( $return_value_ty:ident ),* ] ) => {
match $arg1 {
$( DataValue::$data_value_ty(a) => {
Ok(DataValue::$data_value_ty($return_value_ty::try_from(a.$op()).unwrap()))
} )*
_ => unimplemented!()
}
};
( $op:ident($arg1:expr); [ $( $data_value_ty:ident ),* ] ) => {
match $arg1 {
$( DataValue::$data_value_ty(a) => { Ok(DataValue::$data_value_ty(a.$op())) } )*
_ => unimplemented!()
}
};
( $op:tt($arg1:expr); [ $( $data_value_ty:ident ),* ] ) => {
match $arg1 {
$( DataValue::$data_value_ty(a) => { Ok(DataValue::$data_value_ty($op a)) } )*
_ => unimplemented!()
}
};
}
macro_rules! binary_match {
( $op:ident($arg1:expr, $arg2:expr); [ $( $data_value_ty:ident ),* ] ) => {
match ($arg1, $arg2) {
$( (DataValue::$data_value_ty(a), DataValue::$data_value_ty(b)) => { Ok(DataValue::$data_value_ty(a.$op(*b))) } )*
_ => unimplemented!()
}
};
( option $op:ident($arg1:expr, $arg2:expr); [ $( $data_value_ty:ident ),* ] ) => {
match ($arg1, $arg2) {
$( (DataValue::$data_value_ty(a), DataValue::$data_value_ty(b)) => { Ok(a.$op(*b).map(DataValue::$data_value_ty)) } )*
_ => unimplemented!()
}
};
( $op:tt($arg1:expr, $arg2:expr); [ $( $data_value_ty:ident ),* ] ) => {
match ($arg1, $arg2) {
$( (DataValue::$data_value_ty(a), DataValue::$data_value_ty(b)) => { Ok(DataValue::$data_value_ty(a $op b)) } )*
_ => unimplemented!()
}
};
( $op:tt($arg1:expr, $arg2:expr); [ $( $data_value_ty:ident ),* ]; rhs: $rhs:tt ) => {
match ($arg1, $arg2) {
$( (DataValue::$data_value_ty(a), DataValue::$rhs(b)) => { Ok(DataValue::$data_value_ty(a.$op(*b))) } )*
_ => unimplemented!()
}
};
( $op:ident($arg1:expr, $arg2:expr); unsigned integers ) => {
match ($arg1, $arg2) {
(DataValue::I8(a), DataValue::I8(b)) => { Ok(DataValue::I8((u8::try_from(*a)?.$op(u8::try_from(*b)?) as i8))) }
(DataValue::I16(a), DataValue::I16(b)) => { Ok(DataValue::I16((u16::try_from(*a)?.$op(u16::try_from(*b)?) as i16))) }
(DataValue::I32(a), DataValue::I32(b)) => { Ok(DataValue::I32((u32::try_from(*a)?.$op(u32::try_from(*b)?) as i32))) }
(DataValue::I64(a), DataValue::I64(b)) => { Ok(DataValue::I64((u64::try_from(*a)?.$op(u64::try_from(*b)?) as i64))) }
(DataValue::I128(a), DataValue::I128(b)) => { Ok(DataValue::I128((u128::try_from(*a)?.$op(u128::try_from(*b)?) as i64))) }
_ => { Err(ValueError::InvalidType(ValueTypeClass::Integer, if !($arg1).ty().is_int() { ($arg1).ty() } else { ($arg2).ty() })) }
}
};
}
impl Value for DataValue {
fn ty(&self) -> Type {
self.ty()
}
fn int(n: i128, ty: Type) -> ValueResult<Self> {
if ty.is_int() && !ty.is_vector() {
DataValue::from_integer(n, ty).map_err(|_| ValueError::InvalidValue(ty))
} else {
Err(ValueError::InvalidType(ValueTypeClass::Integer, ty))
}
}
fn into_int(self) -> ValueResult<i128> {
match self {
DataValue::I8(n) => Ok(n as i128),
DataValue::I16(n) => Ok(n as i128),
DataValue::I32(n) => Ok(n as i128),
DataValue::I64(n) => Ok(n as i128),
DataValue::I128(n) => Ok(n),
DataValue::U8(n) => Ok(n as i128),
DataValue::U16(n) => Ok(n as i128),
DataValue::U32(n) => Ok(n as i128),
DataValue::U64(n) => Ok(n as i128),
DataValue::U128(n) => Ok(n as i128),
_ => Err(ValueError::InvalidType(ValueTypeClass::Integer, self.ty())),
}
}
fn float(bits: u64, ty: Type) -> ValueResult<Self> {
match ty {
types::F32 => Ok(DataValue::F32(Ieee32::with_bits(u32::try_from(bits)?))),
types::F64 => Ok(DataValue::F64(Ieee64::with_bits(bits))),
_ => Err(ValueError::InvalidType(ValueTypeClass::Float, ty)),
}
}
fn into_float(self) -> ValueResult<f64> {
match self {
DataValue::F32(n) => Ok(n.as_f32() as f64),
DataValue::F64(n) => Ok(n.as_f64()),
_ => Err(ValueError::InvalidType(ValueTypeClass::Float, self.ty())),
}
}
fn is_float(&self) -> bool {
match self {
DataValue::F32(_) | DataValue::F64(_) => true,
_ => false,
}
}
fn is_nan(&self) -> ValueResult<bool> {
match self {
DataValue::F32(f) => Ok(f.is_nan()),
DataValue::F64(f) => Ok(f.is_nan()),
_ => Err(ValueError::InvalidType(ValueTypeClass::Float, self.ty())),
}
}
fn bool(b: bool, vec_elem: bool, ty: Type) -> ValueResult<Self> {
assert!(ty.is_int());
macro_rules! make_bool {
($ty:ident) => {
Ok(DataValue::$ty(if b {
if vec_elem {
-1
} else {
1
}
} else {
0
}))
};
}
match ty {
types::I8 => make_bool!(I8),
types::I16 => make_bool!(I16),
types::I32 => make_bool!(I32),
types::I64 => make_bool!(I64),
types::I128 => make_bool!(I128),
_ => Err(ValueError::InvalidType(ValueTypeClass::Integer, ty)),
}
}
fn into_bool(self) -> ValueResult<bool> {
match self {
DataValue::I8(b) => Ok(b != 0),
DataValue::I16(b) => Ok(b != 0),
DataValue::I32(b) => Ok(b != 0),
DataValue::I64(b) => Ok(b != 0),
DataValue::I128(b) => Ok(b != 0),
_ => Err(ValueError::InvalidType(ValueTypeClass::Boolean, self.ty())),
}
}
fn vector(v: [u8; 16], ty: Type) -> ValueResult<Self> {
assert!(ty.is_vector() && [8, 16].contains(&ty.bytes()));
if ty.bytes() == 16 {
Ok(DataValue::V128(v))
} else if ty.bytes() == 8 {
let v64: [u8; 8] = v[..8].try_into().unwrap();
Ok(DataValue::V64(v64))
} else {
unimplemented!()
}
}
fn into_array(&self) -> ValueResult<[u8; 16]> {
match *self {
DataValue::V128(v) => Ok(v),
DataValue::V64(v) => {
let mut v128 = [0; 16];
v128[..8].clone_from_slice(&v);
Ok(v128)
}
_ => Err(ValueError::InvalidType(ValueTypeClass::Vector, self.ty())),
}
}
fn convert(self, kind: ValueConversionKind) -> ValueResult<Self> {
Ok(match kind {
ValueConversionKind::Exact(ty) => match (self, ty) {
// TODO a lot to do here: from bmask to ireduce to bitcast...
(val, ty) if val.ty().is_int() && ty.is_int() => {
DataValue::from_integer(val.into_int()?, ty)?
}
(DataValue::I32(n), types::F32) => DataValue::F32(f32::from_bits(n as u32).into()),
(DataValue::I64(n), types::F64) => DataValue::F64(f64::from_bits(n as u64).into()),
(DataValue::F32(n), types::I32) => DataValue::I32(n.bits() as i32),
(DataValue::F64(n), types::I64) => DataValue::I64(n.bits() as i64),
(DataValue::F32(n), types::F64) => DataValue::F64((n.as_f32() as f64).into()),
(dv, t) if (t.is_int() || t.is_float()) && dv.ty() == t => dv,
(dv, _) => unimplemented!("conversion: {} -> {:?}", dv.ty(), kind),
},
ValueConversionKind::Truncate(ty) => {
assert!(
ty.is_int(),
"unimplemented conversion: {} -> {:?}",
self.ty(),
kind
);
let mask = (1 << (ty.bytes() * 8)) - 1i128;
let truncated = self.into_int()? & mask;
Self::from_integer(truncated, ty)?
}
ValueConversionKind::ExtractUpper(ty) => {
assert!(
ty.is_int(),
"unimplemented conversion: {} -> {:?}",
self.ty(),
kind
);
let shift_amt = (self.ty().bytes() * 8) - (ty.bytes() * 8);
let mask = (1 << (ty.bytes() * 8)) - 1i128;
let shifted_mask = mask << shift_amt;
let extracted = (self.into_int()? & shifted_mask) >> shift_amt;
Self::from_integer(extracted, ty)?
}
ValueConversionKind::SignExtend(ty) => match (self, ty) {
(DataValue::U8(n), types::I16) => DataValue::U16(n as u16),
(DataValue::U8(n), types::I32) => DataValue::U32(n as u32),
(DataValue::U8(n), types::I64) => DataValue::U64(n as u64),
(DataValue::U8(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I8(n), types::I16) => DataValue::I16(n as i16),
(DataValue::I8(n), types::I32) => DataValue::I32(n as i32),
(DataValue::I8(n), types::I64) => DataValue::I64(n as i64),
(DataValue::I8(n), types::I128) => DataValue::I128(n as i128),
(DataValue::U16(n), types::I32) => DataValue::U32(n as u32),
(DataValue::U16(n), types::I64) => DataValue::U64(n as u64),
(DataValue::U16(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I16(n), types::I32) => DataValue::I32(n as i32),
(DataValue::I16(n), types::I64) => DataValue::I64(n as i64),
(DataValue::I16(n), types::I128) => DataValue::I128(n as i128),
(DataValue::U32(n), types::I64) => DataValue::U64(n as u64),
(DataValue::U32(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I32(n), types::I64) => DataValue::I64(n as i64),
(DataValue::I32(n), types::I128) => DataValue::I128(n as i128),
(DataValue::U64(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I64(n), types::I128) => DataValue::I128(n as i128),
(dv, _) => unimplemented!("conversion: {} -> {:?}", dv.ty(), kind),
},
ValueConversionKind::ZeroExtend(ty) => match (self, ty) {
(DataValue::U8(n), types::I16) => DataValue::U16(n as u16),
(DataValue::U8(n), types::I32) => DataValue::U32(n as u32),
(DataValue::U8(n), types::I64) => DataValue::U64(n as u64),
(DataValue::U8(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I8(n), types::I16) => DataValue::I16(n as u8 as i16),
(DataValue::I8(n), types::I32) => DataValue::I32(n as u8 as i32),
(DataValue::I8(n), types::I64) => DataValue::I64(n as u8 as i64),
(DataValue::I8(n), types::I128) => DataValue::I128(n as u8 as i128),
(DataValue::U16(n), types::I32) => DataValue::U32(n as u32),
(DataValue::U16(n), types::I64) => DataValue::U64(n as u64),
(DataValue::U16(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I16(n), types::I32) => DataValue::I32(n as u16 as i32),
(DataValue::I16(n), types::I64) => DataValue::I64(n as u16 as i64),
(DataValue::I16(n), types::I128) => DataValue::I128(n as u16 as i128),
(DataValue::U32(n), types::I64) => DataValue::U64(n as u64),
(DataValue::U32(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I32(n), types::I64) => DataValue::I64(n as u32 as i64),
(DataValue::I32(n), types::I128) => DataValue::I128(n as u32 as i128),
(DataValue::U64(n), types::I128) => DataValue::U128(n as u128),
(DataValue::I64(n), types::I128) => DataValue::I128(n as u64 as i128),
(from, to) if from.ty() == to => from,
(dv, _) => unimplemented!("conversion: {} -> {:?}", dv.ty(), kind),
},
ValueConversionKind::ToUnsigned => match self {
DataValue::I8(n) => DataValue::U8(n as u8),
DataValue::I16(n) => DataValue::U16(n as u16),
DataValue::I32(n) => DataValue::U32(n as u32),
DataValue::I64(n) => DataValue::U64(n as u64),
DataValue::I128(n) => DataValue::U128(n as u128),
_ => unimplemented!("conversion: {} -> {:?}", self.ty(), kind),
},
ValueConversionKind::ToSigned => match self {
DataValue::U8(n) => DataValue::I8(n as i8),
DataValue::U16(n) => DataValue::I16(n as i16),
DataValue::U32(n) => DataValue::I32(n as i32),
DataValue::U64(n) => DataValue::I64(n as i64),
DataValue::U128(n) => DataValue::I128(n as i128),
_ => unimplemented!("conversion: {} -> {:?}", self.ty(), kind),
},
ValueConversionKind::RoundNearestEven(ty) => match (self, ty) {
(DataValue::F64(n), types::F32) => DataValue::F32(Ieee32::from(n.as_f64() as f32)),
(s, _) => unimplemented!("conversion: {} -> {:?}", s.ty(), kind),
},
ValueConversionKind::ToBoolean => match self.ty() {
ty if ty.is_int() => DataValue::I8(if self.into_int()? != 0 { 1 } else { 0 }),
ty => unimplemented!("conversion: {} -> {:?}", ty, kind),
},
ValueConversionKind::Mask(ty) => {
let b = self.into_bool()?;
Self::bool(b, true, ty).unwrap()
}
})
}
fn concat(self, other: Self) -> ValueResult<Self> {
match (self, other) {
(DataValue::I64(lhs), DataValue::I64(rhs)) => Ok(DataValue::I128(
(((lhs as u64) as u128) | (((rhs as u64) as u128) << 64)) as i128,
)),
(lhs, rhs) => unimplemented!("concat: {} -> {}", lhs.ty(), rhs.ty()),
}
}
fn is_negative(&self) -> ValueResult<bool> {
match self {
DataValue::F32(f) => Ok(f.is_negative()),
DataValue::F64(f) => Ok(f.is_negative()),
_ => Err(ValueError::InvalidType(ValueTypeClass::Float, self.ty())),
}
}
fn is_zero(&self) -> ValueResult<bool> {
match self {
DataValue::F32(f) => Ok(f.is_zero()),
DataValue::F64(f) => Ok(f.is_zero()),
_ => Err(ValueError::InvalidType(ValueTypeClass::Float, self.ty())),
}
}
fn max(self, other: Self) -> ValueResult<Self> {
if Value::gt(&self, &other)? {
Ok(self)
} else {
Ok(other)
}
}
fn min(self, other: Self) -> ValueResult<Self> {
if Value::lt(&self, &other)? {
Ok(self)
} else {
Ok(other)
}
}
fn eq(&self, other: &Self) -> ValueResult<bool> {
Ok(self == other)
}
fn gt(&self, other: &Self) -> ValueResult<bool> {
Ok(self > other)
}
fn uno(&self, other: &Self) -> ValueResult<bool> {
Ok(self.is_nan()? || other.is_nan()?)
}
fn add(self, other: Self) -> ValueResult<Self> {
if self.is_float() {
binary_match!(+(self, other); [F32, F64])
} else {
binary_match!(wrapping_add(&self, &other); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
}
fn sub(self, other: Self) -> ValueResult<Self> {
if self.is_float() {
binary_match!(-(self, other); [F32, F64])
} else {
binary_match!(wrapping_sub(&self, &other); [I8, I16, I32, I64, I128])
}
}
fn mul(self, other: Self) -> ValueResult<Self> {
if self.is_float() {
binary_match!(*(self, other); [F32, F64])
} else {
binary_match!(wrapping_mul(&self, &other); [I8, I16, I32, I64, I128])
}
}
fn div(self, other: Self) -> ValueResult<Self> {
if self.is_float() {
return binary_match!(/(self, other); [F32, F64]);
}
let denominator = other.clone().into_int()?;
// Check if we are dividing INT_MIN / -1. This causes an integer overflow trap.
let min = Value::int(1i128 << (self.ty().bits() - 1), self.ty())?;
if self == min && denominator == -1 {
return Err(ValueError::IntegerOverflow);
}
if denominator == 0 {
return Err(ValueError::IntegerDivisionByZero);
}
binary_match!(/(&self, &other); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
fn rem(self, other: Self) -> ValueResult<Self> {
let denominator = other.clone().into_int()?;
// Check if we are dividing INT_MIN / -1. This causes an integer overflow trap.
let min = Value::int(1i128 << (self.ty().bits() - 1), self.ty())?;
if self == min && denominator == -1 {
return Err(ValueError::IntegerOverflow);
}
if denominator == 0 {
return Err(ValueError::IntegerDivisionByZero);
}
binary_match!(%(&self, &other); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
fn sqrt(self) -> ValueResult<Self> {
unary_match!(sqrt(&self); [F32, F64]; [Ieee32, Ieee64])
}
fn fma(self, b: Self, c: Self) -> ValueResult<Self> {
match (self, b, c) {
(DataValue::F32(a), DataValue::F32(b), DataValue::F32(c)) => {
// The `fma` function for `x86_64-pc-windows-gnu` is incorrect. Use `libm`'s instead.
// See: https://github.com/bytecodealliance/wasmtime/issues/4512
#[cfg(all(target_arch = "x86_64", target_os = "windows", target_env = "gnu"))]
let res = libm::fmaf(a.as_f32(), b.as_f32(), c.as_f32());
#[cfg(not(all(
target_arch = "x86_64",
target_os = "windows",
target_env = "gnu"
)))]
let res = a.as_f32().mul_add(b.as_f32(), c.as_f32());
Ok(DataValue::F32(res.into()))
}
(DataValue::F64(a), DataValue::F64(b), DataValue::F64(c)) => {
#[cfg(all(target_arch = "x86_64", target_os = "windows", target_env = "gnu"))]
let res = libm::fma(a.as_f64(), b.as_f64(), c.as_f64());
#[cfg(not(all(
target_arch = "x86_64",
target_os = "windows",
target_env = "gnu"
)))]
let res = a.as_f64().mul_add(b.as_f64(), c.as_f64());
Ok(DataValue::F64(res.into()))
}
(a, _b, _c) => Err(ValueError::InvalidType(ValueTypeClass::Float, a.ty())),
}
}
fn abs(self) -> ValueResult<Self> {
unary_match!(abs(&self); [F32, F64])
}
fn checked_add(self, other: Self) -> ValueResult<Option<Self>> {
binary_match!(option checked_add(&self, &other); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
fn neg(self) -> ValueResult<Self> {
unary_match!(neg(&self); [F32, F64])
}
fn copysign(self, sign: Self) -> ValueResult<Self> {
binary_match!(copysign(&self, &sign); [F32, F64])
}
fn ceil(self) -> ValueResult<Self> {
unary_match!(ceil(&self); [F32, F64])
}
fn floor(self) -> ValueResult<Self> {
unary_match!(floor(&self); [F32, F64])
}
fn trunc(self) -> ValueResult<Self> {
unary_match!(trunc(&self); [F32, F64])
}
fn nearest(self) -> ValueResult<Self> {
unary_match!(round_ties_even(&self); [F32, F64])
}
fn add_sat(self, other: Self) -> ValueResult<Self> {
binary_match!(saturating_add(self, &other); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
fn sub_sat(self, other: Self) -> ValueResult<Self> {
binary_match!(saturating_sub(self, &other); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
fn shl(self, other: Self) -> ValueResult<Self> {
let amt = other
.convert(ValueConversionKind::Exact(types::I32))?
.convert(ValueConversionKind::ToUnsigned)?;
binary_match!(wrapping_shl(&self, &amt); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; rhs: U32)
}
fn ushr(self, other: Self) -> ValueResult<Self> {
let amt = other
.convert(ValueConversionKind::Exact(types::I32))?
.convert(ValueConversionKind::ToUnsigned)?;
binary_match!(wrapping_shr(&self, &amt); [U8, U16, U32, U64, U128]; rhs: U32)
}
fn ishr(self, other: Self) -> ValueResult<Self> {
let amt = other
.convert(ValueConversionKind::Exact(types::I32))?
.convert(ValueConversionKind::ToUnsigned)?;
binary_match!(wrapping_shr(&self, &amt); [I8, I16, I32, I64, I128]; rhs: U32)
}
fn rotl(self, other: Self) -> ValueResult<Self> {
let amt = other
.convert(ValueConversionKind::Exact(types::I32))?
.convert(ValueConversionKind::ToUnsigned)?;
binary_match!(rotate_left(&self, &amt); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; rhs: U32)
}
fn rotr(self, other: Self) -> ValueResult<Self> {
let amt = other
.convert(ValueConversionKind::Exact(types::I32))?
.convert(ValueConversionKind::ToUnsigned)?;
binary_match!(rotate_right(&self, &amt); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; rhs: U32)
}
fn and(self, other: Self) -> ValueResult<Self> {
binary_match!(&(self, other); [I8, I16, I32, I64, I128, F32, F64])
}
fn or(self, other: Self) -> ValueResult<Self> {
binary_match!(|(self, other); [I8, I16, I32, I64, I128, F32, F64])
}
fn xor(self, other: Self) -> ValueResult<Self> {
binary_match!(^(self, other); [I8, I16, I32, I64, I128, F32, F64])
}
fn not(self) -> ValueResult<Self> {
unary_match!(!(self); [I8, I16, I32, I64, I128, F32, F64])
}
fn count_ones(self) -> ValueResult<Self> {
unary_match!(count_ones(&self); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; [i8, i16, i32, i64, i128, u8, u16, u32, u64, u128])
}
fn leading_ones(self) -> ValueResult<Self> {
unary_match!(leading_ones(&self); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; [i8, i16, i32, i64, i128, u8, u16, u32, u64, u128])
}
fn leading_zeros(self) -> ValueResult<Self> {
unary_match!(leading_zeros(&self); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; [i8, i16, i32, i64, i128, u8, u16, u32, u64, u128])
}
fn trailing_zeros(self) -> ValueResult<Self> {
unary_match!(trailing_zeros(&self); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128]; [i8, i16, i32, i64, i128, u8, u16, u32, u64, u128])
}
fn reverse_bits(self) -> ValueResult<Self> {
unary_match!(reverse_bits(&self); [I8, I16, I32, I64, I128, U8, U16, U32, U64, U128])
}
fn swap_bytes(self) -> ValueResult<Self> {
unary_match!(swap_bytes(&self); [I16, I32, I64, I128, U16, U32, U64, U128])
}
}
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