T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #3380 from dheaton-arm/implement-iabs

Browse Source 
Implement `Iabs` for the interpreter
This commit is contained in:
Chris Fallin
2021-09-22 10:00:53 -07:00
committed by GitHub
parent b076c99af9 539b1de5f4
commit 65fde3a86b
3 changed files with 100 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
cranelift/interpreter/src/step.rs
View File

@@ -557,7 +557,30 @@ where
false,
)?),
Opcode::Ineg => binary(Value::sub, Value::int(0, ctrl_ty)?, arg(0)?)?,
Opcode::Iabs => unimplemented!("Iabs"),
Opcode::Iabs => {
let (min_val, _) = ctrl_ty.lane_type().bounds(true);
let min_val: V = Value::int(min_val as i128, ctrl_ty.lane_type())?;
if ctrl_ty.is_vector() {
let arg0 = extractlanes(&arg(0)?, ctrl_ty.lane_type())?;
let new_vec = arg0
.into_iter()
.map(|lane| {
if Value::eq(&lane, &min_val)? {
Ok(min_val.clone())
} else {
Value::int(lane.into_int()?.abs(), ctrl_ty.lane_type())
}
})
.collect::<ValueResult<SimdVec<V>>>()?;
assign(vectorizelanes(&new_vec, ctrl_ty)?)
} else {
assign(if Value::eq(&arg(0)?, &min_val)? {
min_val.clone()
} else {
Value::int(arg(0)?.into_int()?.abs(), ctrl_ty.lane_type())?
})
}
}
Opcode::Imul => binary(Value::mul, arg(0)?, arg(1)?)?,
Opcode::Umulhi | Opcode::Smulhi => {
let double_length = match ctrl_ty.lane_bits() {