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cranelift: Add basic i128 support in interpreter

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This commit is contained in:
Afonso Bordado
2021-07-23 12:15:00 +01:00
committed by Andrew Brown
parent 084383f60a
commit a2fb019ba7
7 changed files with 95 additions and 35 deletions
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12
cranelift/interpreter/src/step.rs
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@@ -72,6 +72,9 @@ where
// Indicate that the result of a step is to assign a single value to an instruction's results.
let assign = |value: V| ControlFlow::Assign(smallvec![value]);
// Indicate that the result of a step is to assign multiple values to an instruction's results.
let assign_multiple = |values: &[V]| ControlFlow::Assign(SmallVec::from(values));
// Similar to `assign` but converts some errors into traps
let assign_or_trap = |value: ValueResult<V>| match value {
Ok(v) => Ok(assign(v)),
@@ -147,7 +150,7 @@ where
};
// Helper for summing a sequence of values.
fn sum<V: Value>(head: V, tail: SmallVec<[V; 1]>) -> ValueResult<i64> {
fn sum<V: Value>(head: V, tail: SmallVec<[V; 1]>) -> ValueResult<i128> {
let mut acc = head;
for t in tail {
acc = Value::add(acc, t)?;
@@ -615,8 +618,11 @@ where
Opcode::FcvtLowFromSint => unimplemented!("FcvtLowFromSint"),
Opcode::FvpromoteLow => unimplemented!("FvpromoteLow"),
Opcode::Fvdemote => unimplemented!("Fvdemote"),
Opcode::Isplit => unimplemented!("Isplit"),
Opcode::Iconcat => unimplemented!("Iconcat"),
Opcode::Isplit => assign_multiple(&[
Value::convert(arg(0)?, ValueConversionKind::Truncate(types::I64))?,
Value::convert(arg(0)?, ValueConversionKind::ExtractUpper(types::I64))?,
]),
Opcode::Iconcat => assign(Value::concat(arg(0)?, arg(1)?)?),
Opcode::AtomicRmw => unimplemented!("AtomicRmw"),
Opcode::AtomicCas => unimplemented!("AtomicCas"),
Opcode::AtomicLoad => unimplemented!("AtomicLoad"),