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Add sign extension support

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This commit is contained in:
Rerumu
2021-11-28 03:47:00 -05:00
parent ea639ed420
commit 16ba82775b
2 changed files with 17 additions and 2 deletions
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wasm/src/backend/ast/operation.rs
+16 -1
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@@ -1,6 +1,6 @@
use std::convert::TryFrom;
use parity_wasm::elements::Instruction;
use parity_wasm::elements::{Instruction, SignExtInstruction};
#[allow(non_camel_case_types)]
#[derive(Clone, Copy)]
@@ -144,6 +144,10 @@ pub enum UnOp {
Trunc_U32_F32,
Trunc_I32_F64,
Trunc_U32_F64,
Extend_I32_I8,
Extend_I32_I16,
Extend_I64_I8,
Extend_I64_I16,
Extend_I64_I32,
Extend_U64_I32,
Trunc_I64_F32,
@@ -198,6 +202,10 @@ impl UnOp {
Self::Trunc_U32_F32 => ("trunc", "u32_f32"),
Self::Trunc_I32_F64 => ("trunc", "i32_f64"),
Self::Trunc_U32_F64 => ("trunc", "u32_f64"),
Self::Extend_I32_I8 => ("extend", "i32_i8"),
Self::Extend_I32_I16 => ("extend", "i32_i16"),
Self::Extend_I64_I8 => ("extend", "i64_i8"),
Self::Extend_I64_I16 => ("extend", "i64_i16"),
Self::Extend_I64_I32 => ("extend", "i64_i32"),
Self::Extend_U64_I32 => ("extend", "u64_i32"),
Self::Trunc_I64_F32 => ("trunc", "i64_f32"),
@@ -227,6 +235,13 @@ impl TryFrom<&Instruction> for UnOp {
fn try_from(inst: &Instruction) -> Result<Self, Self::Error> {
let result = match inst {
Instruction::SignExt(ext) => match ext {
SignExtInstruction::I32Extend8S => Self::Extend_I32_I8,
SignExtInstruction::I32Extend16S => Self::Extend_I32_I16,
SignExtInstruction::I64Extend8S => Self::Extend_I64_I8,
SignExtInstruction::I64Extend16S => Self::Extend_I64_I16,
SignExtInstruction::I64Extend32S => Self::Extend_I64_I32,
},
Instruction::I32Eqz => Self::Eqz_I32,
Instruction::I64Eqz => Self::Eqz_I64,
Instruction::I32Clz => Self::Clz_I32,