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CodeBuilder tracks which local variables are set

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Brian Carroll 2023-11-04 18:21:13 +00:00
parent 8636299155
commit a76c4420fa
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GPG key ID: 5C7B2EC4101703C0
2 changed files with 26 additions and 2 deletions
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9
crates/compiler/gen_wasm/src/backend.rs
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@ -796,7 +796,7 @@ impl<'a, 'r> WasmBackend<'a, 'r> {
self.expr(sym, expr, layout, &sym_storage);
if let StoredValue::Local { local_id, .. } = sym_storage {
if !self.code_builder.stack_is_empty() {
if !self.code_builder.is_set(local_id) {
self.code_builder.set_local(local_id);
}
}
@ -1153,7 +1153,11 @@ impl<'a, 'r> WasmBackend<'a, 'r> {
};
match storage {
StoredValue::Local { value_type, .. } => {
StoredValue::Local {
value_type,
local_id,
..
} => {
match (lit, value_type) {
(Literal::Float(x), ValueType::F64) => self.code_builder.f64_const(*x),
(Literal::Float(x), ValueType::F32) => self.code_builder.f32_const(*x as f32),
@ -1167,6 +1171,7 @@ impl<'a, 'r> WasmBackend<'a, 'r> {
(Literal::Byte(x), ValueType::I32) => self.code_builder.i32_const(*x as i32),
_ => invalid_error(),
};
self.code_builder.set_local(*local_id);
}
StoredValue::StackMemory { location, .. } => {