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WIP.

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This commit is contained in:
Chris Fallin 2021-12-12 10:34:19 -08:00
parent 0473031ba4
commit 563092e4f3
2 changed files with 25 additions and 7 deletions
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12
src/frontend.rs
View file

@ -559,19 +559,27 @@ impl<'a, 'b> FunctionBodyBuilder<'a, 'b> {
wasmparser::Operator::LocalGet { local_index } => { wasmparser::Operator::LocalGet { local_index } => {
let ty = self.body.locals[*local_index as usize]; let ty = self.body.locals[*local_index as usize];
if self.cur_block.is_some() {
let value = self.locals.get(&mut self.body, *local_index); let value = self.locals.get(&mut self.body, *local_index);
self.op_stack.push((ty, value)); self.op_stack.push((ty, value));
} else {
self.op_stack.push((ty, Value::undef()));
}
} }
wasmparser::Operator::LocalSet { local_index } => { wasmparser::Operator::LocalSet { local_index } => {
let (_, value) = self.op_stack.pop().unwrap(); let (_, value) = self.op_stack.pop().unwrap();
if self.cur_block.is_some() {
self.locals.set(*local_index, value); self.locals.set(*local_index, value);
} }
}
wasmparser::Operator::LocalTee { local_index } => { wasmparser::Operator::LocalTee { local_index } => {
let (_ty, value) = *self.op_stack.last().unwrap(); let (_ty, value) = *self.op_stack.last().unwrap();
if self.cur_block.is_some() {
self.locals.set(*local_index, value); self.locals.set(*local_index, value);
} }
}
wasmparser::Operator::Call { .. } wasmparser::Operator::Call { .. }
| wasmparser::Operator::CallIndirect { .. } | wasmparser::Operator::CallIndirect { .. }
@ -978,12 +986,14 @@ impl<'a, 'b> FunctionBodyBuilder<'a, 'b> {
.map(|(_ty, value)| *value) .map(|(_ty, value)| *value)
.collect::<Vec<_>>(); .collect::<Vec<_>>();
self.emit_cond_branch(cond, frame.br_target(), &args[..], cont, &[]); self.emit_cond_branch(cond, frame.br_target(), &args[..], cont, &[]);
self.cur_block = Some(cont);
self.locals.seal_block_preds(cont, &mut self.body); self.locals.seal_block_preds(cont, &mut self.body);
if self.cur_block.is_some() {
self.cur_block = Some(cont);
self.locals.start_block(cont); self.locals.start_block(cont);
} }
} }
} }
}
wasmparser::Operator::BrTable { table } => { wasmparser::Operator::BrTable { table } => {
// Get the selector index. // Get the selector index.

10
src/ir.rs
View file

@ -87,6 +87,7 @@ impl FunctionBody {
} }
pub fn set_alias(&mut self, value: Value, to: Value) { pub fn set_alias(&mut self, value: Value, to: Value) {
assert_ne!(to, Value::undef());
log::trace!("set_alias: value {:?} to {:?}", value, to); log::trace!("set_alias: value {:?} to {:?}", value, to);
// Resolve the `to` value through all existing aliases. // Resolve the `to` value through all existing aliases.
let to = self.resolve_alias(to); let to = self.resolve_alias(to);
@ -116,8 +117,15 @@ impl FunctionBody {
value value
} }
pub fn add_blockparam(&mut self, block: BlockId, ty: Type) { pub fn add_blockparam(&mut self, block: BlockId, ty: Type) -> usize {
let index = self.blocks[block].params.len();
self.blocks[block].params.push(ty); self.blocks[block].params.push(ty);
index
}
pub fn add_blockparam_value(&mut self, block: BlockId, ty: Type) -> Value {
let index = self.add_blockparam(block, ty);
self.add_value(ValueDef::BlockParam(block, index), Some(ty))
} }
pub fn add_placeholder(&mut self, ty: Type) -> Value { pub fn add_placeholder(&mut self, ty: Type) -> Value {