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add load/store intrinsics

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This commit is contained in:
Dennis Ranke
2022-02-23 23:52:44 +01:00
parent 1b434f6b30
commit 132aea3996
6 changed files with 214 additions and 96 deletions
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56
src/intrinsics.rs
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@@ -1,5 +1,6 @@
use crate::ast::Type;
use std::collections::HashMap;
use enc::MemArg;
use wasm_encoder as enc;
pub struct Intrinsics(HashMap<String, HashMap<Vec<Type>, (Type, enc::Instruction<'static>)>>);
@@ -137,4 +138,59 @@ impl Intrinsics {
.or_default()
.insert(params.to_vec(), (ret, ins.clone()));
}
pub fn find_load(&self, name: &str) -> Option<MemInstruction> {
use enc::Instruction as I;
use Type::*;
let ins = match name {
"i32.load" => MemInstruction::new(I32, I::I32Load, 2),
"i32.load8_s" => MemInstruction::new(I32, I::I32Load8_S, 0),
"i32.load8_u" => MemInstruction::new(I32, I::I32Load8_U, 0),
"i32.load16_s" => MemInstruction::new(I32, I::I32Load16_S, 1),
"i32.load16_u" => MemInstruction::new(I32, I::I32Load16_U, 1),
"i64.load" => MemInstruction::new(I64, I::I64Load, 3),
"i64.load8_s" => MemInstruction::new(I64, I::I64Load8_S, 0),
"i64.load8_u" => MemInstruction::new(I64, I::I64Load8_U, 0),
"i64.load16_s" => MemInstruction::new(I64, I::I64Load16_S, 1),
"i64.load16_u" => MemInstruction::new(I64, I::I64Load16_U, 1),
"i64.load32_s" => MemInstruction::new(I64, I::I64Load32_S, 2),
"i64.load32_u" => MemInstruction::new(I64, I::I64Load32_U, 2),
"f32.load" => MemInstruction::new(F32, I::F32Load, 2),
"f64.load" => MemInstruction::new(F64, I::F64Load, 3),
_ => return None
};
return Some(ins);
}
pub fn find_store(&self, name: &str) -> Option<MemInstruction> {
use enc::Instruction as I;
use Type::*;
let ins = match name {
"i32.store" => MemInstruction::new(I32, I::I32Store, 2),
"i32.store8" => MemInstruction::new(I32, I::I32Store8, 0),
"i32.store16" => MemInstruction::new(I32, I::I32Store16, 1),
"i64.store" => MemInstruction::new(I64, I::I64Store, 3),
"i64.store8" => MemInstruction::new(I64, I::I64Store8, 0),
"i64.store16" => MemInstruction::new(I64, I::I64Store16, 1),
"i64.store32" => MemInstruction::new(I64, I::I64Store32, 2),
"f32.store" => MemInstruction::new(F32, I::F32Store, 2),
"f64.store" => MemInstruction::new(F64, I::F64Store, 3),
_ => return None
};
return Some(ins);
}
}
pub struct MemInstruction {
pub type_: Type,
pub instruction: fn(MemArg) -> enc::Instruction<'static>,
pub natural_alignment: u32
}
impl MemInstruction {
fn new(type_: Type, instruction: fn(MemArg) -> enc::Instruction<'static>, natural_alignment: u32) -> MemInstruction {
MemInstruction {
type_, instruction, natural_alignment
}
}
}