forked from AbleOS/holey-bytes
using more typesafe locking
This commit is contained in:
Jakub Doka
parent
9095af6d84
commit
39588579a8
523
lang/src/son.rs
523
lang/src/son.rs
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@ -1,5 +1,5 @@
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use {
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self::var::{Scope, Variable},
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self::strong_ref::StrongRef,
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crate::{
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ctx_map::CtxEntry,
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debug,
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@ -23,10 +23,10 @@ use {
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cell::RefCell,
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fmt::{self, Debug, Display, Write},
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format_args as fa, mem,
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ops::{self, Deref, Not},
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ops::{self, Deref},
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},
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hashbrown::hash_map,
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hbbytecode::{st, DisasmError},
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hbbytecode::DisasmError,
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regalloc2::VReg,
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};
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@ -68,6 +68,29 @@ impl Default for Nodes {
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}
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impl Nodes {
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fn merge_scopes(
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&mut self,
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loops: &mut [Loop],
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ctrl: &StrongRef,
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to: &mut Scope,
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from: &mut Scope,
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) {
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for (i, (to_value, from_value)) in to.iter_mut().zip(from.iter_mut()).enumerate() {
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debug_assert_eq!(to_value.ty, from_value.ty);
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if to_value.value() != from_value.value() {
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self.load_loop_var(i, from_value, loops);
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self.load_loop_var(i, to_value, loops);
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if to_value.value() != from_value.value() {
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let inps = [ctrl.get(), from_value.value(), to_value.value()];
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to_value.set_value_remove(self.new_node(from_value.ty, Kind::Phi, inps), self);
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}
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}
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}
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to.loads.drain(..).for_each(|l| _ = l.remove(self));
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from.loads.drain(..).for_each(|l| _ = l.remove(self));
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}
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fn graphviz_low(
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&self,
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tys: &Types,
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@ -342,7 +365,7 @@ impl Nodes {
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// this is more general the pushing constants to left to help deduplicate expressions more
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let mut changed = false;
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if op.is_comutative() && self[lhs].key() < self[rhs].key() {
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core::mem::swap(&mut lhs, &mut rhs);
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mem::swap(&mut lhs, &mut rhs);
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changed = true;
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}
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@ -682,7 +705,7 @@ impl Nodes {
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let mut print_ret = true;
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for o in iter(self, node) {
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if self[o].inputs[0] == node
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&& (self[node].outputs[0] != o || core::mem::take(&mut print_ret))
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&& (self[node].outputs[0] != o || mem::take(&mut print_ret))
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{
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self.basic_blocks_instr(out, o)?;
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}
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@ -1048,103 +1071,168 @@ type IDomDepth = u16;
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#[derive(Clone)]
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struct Loop {
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node: Nid,
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ctrl: [Nid; 2],
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ctrl: [StrongRef; 2],
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ctrl_scope: [Scope; 2],
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scope: Scope,
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}
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mod var {
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mod strong_ref {
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use {
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super::{Kind, Nid, Nodes},
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crate::{debug, ident::Ident, ty},
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alloc::vec::Vec,
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crate::debug,
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core::ops::Not,
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};
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// makes sure value inside is laways locked for this instance of variable
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#[derive(Default, Clone)]
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pub struct Variable {
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pub id: Ident,
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pub ty: ty::Id,
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pub ptr: bool,
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value: Nid,
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}
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#[derive(Clone)]
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pub struct StrongRef(Nid);
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impl Variable {
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pub fn new(id: Ident, ty: ty::Id, ptr: bool, value: Nid, nodes: &mut Nodes) -> Self {
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impl StrongRef {
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pub const DEFAULT: Self = Self(Nid::MAX);
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pub fn new(value: Nid, nodes: &mut Nodes) -> Self {
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nodes.lock(value);
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Self { id, ty, ptr, value }
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Self(value)
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}
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pub fn value(&self) -> Nid {
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self.value
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pub fn get(&self) -> Nid {
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debug_assert!(self.0 != Nid::MAX);
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self.0
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}
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pub fn set_value(&mut self, mut new_value: Nid, nodes: &mut Nodes) -> Nid {
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nodes.unlock(self.value);
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core::mem::swap(&mut self.value, &mut new_value);
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nodes.lock(self.value);
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pub fn unwrap(self, nodes: &mut Nodes) -> Option<Nid> {
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let nid = self.0;
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if nid != Nid::MAX {
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nodes.unlock(nid);
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core::mem::forget(self);
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Some(nid)
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} else {
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None
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}
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}
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pub fn set(&mut self, mut new_value: Nid, nodes: &mut Nodes) -> Nid {
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nodes.unlock(self.0);
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core::mem::swap(&mut self.0, &mut new_value);
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nodes.lock(self.0);
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new_value
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}
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pub fn dup(&self, nodes: &mut Nodes) -> Self {
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nodes.lock(self.value);
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Self { id: self.id, ty: self.ty, ptr: self.ptr, value: self.value }
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nodes.lock(self.0);
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Self(self.0)
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}
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pub fn remove(self, nodes: &mut Nodes) {
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nodes.unlock_remove(self.value);
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pub fn remove(self, nodes: &mut Nodes) -> Option<Nid> {
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let ret = nodes.unlock_remove(self.0).not().then_some(self.0);
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core::mem::forget(self);
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ret
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}
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pub fn set_value_remove(&mut self, new_value: Nid, nodes: &mut Nodes) {
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let old = self.set_value(new_value, nodes);
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pub fn set_remove(&mut self, new_value: Nid, nodes: &mut Nodes) {
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let old = self.set(new_value, nodes);
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nodes.remove(old);
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}
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pub fn remove_ignore_arg(self, nodes: &mut Nodes) {
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if nodes[self.value].kind == Kind::Arg {
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nodes.unlock(self.value);
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if nodes[self.0].kind == Kind::Arg {
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nodes.unlock(self.0);
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} else {
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nodes.unlock_remove(self.value);
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nodes.unlock_remove(self.0);
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}
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core::mem::forget(self);
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}
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pub fn soft_remove(self, nodes: &mut Nodes) -> Nid {
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let nid = self.0;
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nodes.unlock(self.0);
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core::mem::forget(self);
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nid
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}
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pub fn is_live(&self) -> bool {
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self.0 != Nid::MAX
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}
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}
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impl Drop for Variable {
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impl Default for StrongRef {
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fn default() -> Self {
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Self::DEFAULT
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}
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}
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impl Drop for StrongRef {
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fn drop(&mut self) {
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if self.ty != ty::Id::UNDECLARED && !debug::panicking() {
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if self.0 != Nid::MAX && !debug::panicking() {
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panic!("variable unproperly deinitialized")
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}
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}
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}
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}
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#[derive(Default, Clone)]
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pub struct Scope {
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pub vars: Vec<Variable>,
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pub loads: Vec<Nid>,
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pub store: Variable,
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// makes sure value inside is laways locked for this instance of variable
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#[derive(Default, Clone)]
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struct Variable {
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id: Ident,
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ty: ty::Id,
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ptr: bool,
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value: StrongRef,
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}
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impl Variable {
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fn new(id: Ident, ty: ty::Id, ptr: bool, value: Nid, nodes: &mut Nodes) -> Self {
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Self { id, ty, ptr, value: StrongRef::new(value, nodes) }
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}
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impl Scope {
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pub fn iter_mut(&mut self) -> impl Iterator<Item = &mut Variable> {
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core::iter::once(&mut self.store).chain(self.vars.iter_mut())
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}
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fn value(&self) -> Nid {
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self.value.get()
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}
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pub fn dup(&self, nodes: &mut Nodes) -> Self {
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Self {
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vars: self.vars.iter().map(|v| v.dup(nodes)).collect(),
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loads: self.loads.iter().copied().inspect(|&l| nodes.lock(l)).collect(),
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store: self.store.dup(nodes),
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}
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}
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fn set_value(&mut self, new_value: Nid, nodes: &mut Nodes) -> Nid {
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self.value.set(new_value, nodes)
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}
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pub fn clear(&mut self, nodes: &mut Nodes) {
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self.vars.drain(..).for_each(|n| n.remove(nodes));
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self.loads.drain(..).for_each(|l| _ = nodes.unlock_remove(l));
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core::mem::take(&mut self.store).remove(nodes);
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fn dup(&self, nodes: &mut Nodes) -> Self {
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Self { id: self.id, ty: self.ty, ptr: self.ptr, value: self.value.dup(nodes) }
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}
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fn remove(self, nodes: &mut Nodes) {
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self.value.remove(nodes);
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}
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fn set_value_remove(&mut self, new_value: Nid, nodes: &mut Nodes) {
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self.value.set_remove(new_value, nodes);
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}
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fn remove_ignore_arg(self, nodes: &mut Nodes) {
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self.value.remove_ignore_arg(nodes);
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}
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}
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#[derive(Default, Clone)]
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pub struct Scope {
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vars: Vec<Variable>,
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loads: Vec<StrongRef>,
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store: Variable,
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}
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impl Scope {
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fn iter_mut(&mut self) -> impl Iterator<Item = &mut Variable> {
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core::iter::once(&mut self.store).chain(self.vars.iter_mut())
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}
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fn dup(&self, nodes: &mut Nodes) -> Self {
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Self {
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vars: self.vars.iter().map(|v| v.dup(nodes)).collect(),
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loads: self.loads.iter().map(|l| l.dup(nodes)).collect(),
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store: self.store.dup(nodes),
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}
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}
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fn clear(&mut self, nodes: &mut Nodes) {
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self.vars.drain(..).for_each(|n| n.remove(nodes));
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self.loads.drain(..).for_each(|l| _ = l.remove(nodes));
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mem::take(&mut self.store).remove(nodes);
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}
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}
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#[derive(Default, Clone)]
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@ -1154,9 +1242,9 @@ struct ItemCtx {
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task_base: usize,
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inline_var_base: usize,
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inline_depth: u16,
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inline_ret: Option<(Value, Nid, Scope)>,
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inline_ret: Option<(Value, StrongRef, Scope)>,
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nodes: Nodes,
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ctrl: Nid,
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ctrl: StrongRef,
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call_count: u16,
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loops: Vec<Loop>,
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scope: Scope,
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@ -1189,9 +1277,9 @@ impl ItemCtx {
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let end = self.nodes.new_node(ty::Id::NEVER, Kind::End, []);
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debug_assert_eq!(end, NEVER);
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self.nodes.lock(end);
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self.ctrl = self.nodes.new_node(ty::Id::VOID, Kind::Entry, [VOID]);
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debug_assert_eq!(self.ctrl, ENTRY);
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self.nodes.lock(self.ctrl);
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self.ctrl =
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StrongRef::new(self.nodes.new_node(ty::Id::VOID, Kind::Entry, [VOID]), &mut self.nodes);
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debug_assert_eq!(self.ctrl.get(), ENTRY);
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let mem = self.nodes.new_node(ty::Id::VOID, Kind::Mem, [VOID]);
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debug_assert_eq!(mem, MEM);
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self.nodes.lock(mem);
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@ -1201,7 +1289,7 @@ impl ItemCtx {
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fn finalize(&mut self) {
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self.scope.clear(&mut self.nodes);
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self.nodes.unlock(NEVER);
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self.nodes.unlock(ENTRY);
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mem::take(&mut self.ctrl).soft_remove(&mut self.nodes);
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self.nodes.unlock(MEM);
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self.nodes.eliminate_stack_temporaries();
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self.nodes.iter_peeps(1000);
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@ -1218,12 +1306,12 @@ impl ItemCtx {
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files: &[parser::Ast],
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ralloc: &mut Regalloc,
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) -> usize {
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let mut nodes = core::mem::take(&mut self.nodes);
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let mut nodes = mem::take(&mut self.nodes);
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let fuc = Function::new(&mut nodes, tys, sig);
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log::info!("{:?}", fuc);
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if self.call_count != 0 {
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core::mem::swap(
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mem::swap(
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&mut ralloc.env.preferred_regs_by_class,
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&mut ralloc.env.non_preferred_regs_by_class,
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);
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@ -1246,7 +1334,7 @@ impl ItemCtx {
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);
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if self.call_count != 0 {
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core::mem::swap(
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mem::swap(
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&mut ralloc.env.preferred_regs_by_class,
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&mut ralloc.env.non_preferred_regs_by_class,
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);
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@ -1563,7 +1651,7 @@ impl ItemCtx {
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self.nodes.graphviz(tys, files);
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debug_assert!(self.code.is_empty());
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let tail = core::mem::take(&mut self.call_count) == 0;
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let tail = mem::take(&mut self.call_count) == 0;
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'_open_function: {
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self.emit(instrs::addi64(reg::STACK_PTR, reg::STACK_PTR, 0));
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@ -1572,7 +1660,7 @@ impl ItemCtx {
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let mut stack_size = 0;
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'_compute_stack: {
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let mems = core::mem::take(&mut self.nodes[MEM].outputs);
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let mems = mem::take(&mut self.nodes[MEM].outputs);
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for &stck in mems.iter() {
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if !matches!(self.nodes[stck].kind, Kind::Stck | Kind::Arg) {
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debug_assert_matches!(
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@ -1689,10 +1777,10 @@ impl Pool {
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target: &mut ItemCtx,
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) {
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if let Some(slot) = self.cis.get_mut(self.used_cis) {
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core::mem::swap(slot, target);
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mem::swap(slot, target);
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} else {
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self.cis.push(ItemCtx::default());
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core::mem::swap(self.cis.last_mut().unwrap(), target);
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mem::swap(self.cis.last_mut().unwrap(), target);
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}
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target.init(file, ret, task_base);
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self.used_cis += 1;
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@ -1700,7 +1788,7 @@ impl Pool {
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pub fn pop_ci(&mut self, target: &mut ItemCtx) {
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self.used_cis -= 1;
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core::mem::swap(&mut self.cis[self.used_cis], target);
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mem::swap(&mut self.cis[self.used_cis], target);
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}
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fn save_ci(&mut self, ci: &ItemCtx) {
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@ -1715,7 +1803,8 @@ impl Pool {
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fn restore_ci(&mut self, dst: &mut ItemCtx) {
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self.used_cis -= 1;
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dst.scope.clear(&mut dst.nodes);
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*dst = core::mem::take(&mut self.cis[self.used_cis]);
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mem::take(&mut dst.ctrl).remove(&mut dst.nodes);
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*dst = mem::take(&mut self.cis[self.used_cis]);
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}
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fn clear(&mut self) {
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@ -1854,8 +1943,8 @@ impl<'a> Codegen<'a> {
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let func = Func {
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file,
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name: 0,
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relocs: core::mem::take(&mut self.ci.relocs),
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code: core::mem::take(&mut self.ci.code),
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relocs: mem::take(&mut self.ci.relocs),
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code: mem::take(&mut self.ci.code),
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..Default::default()
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};
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@ -1905,11 +1994,11 @@ impl<'a> Codegen<'a> {
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self.ci.nodes.load_loop_store(&mut self.ci.scope.store, &mut self.ci.loops);
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let mut vc = Vc::from([VOID, value, region, self.ci.scope.store.value()]);
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for load in self.ci.scope.loads.drain(..) {
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if load == value {
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self.ci.nodes.unlock(load);
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if load.get() == value {
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load.soft_remove(&mut self.ci.nodes);
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continue;
|
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}
|
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if !self.ci.nodes.unlock_remove(load) {
|
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if let Some(load) = load.remove(&mut self.ci.nodes) {
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vc.push(load);
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}
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}
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@ -1937,8 +2026,7 @@ impl<'a> Codegen<'a> {
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self.ci.nodes.load_loop_store(&mut self.ci.scope.store, &mut self.ci.loops);
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let vc = [VOID, region, self.ci.scope.store.value()];
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let load = self.ci.nodes.new_node(ty, Kind::Load, vc);
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self.ci.nodes.lock(load);
|
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self.ci.scope.loads.push(load);
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self.ci.scope.loads.push(StrongRef::new(load, &mut self.ci.nodes));
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load
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}
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|
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@ -2060,40 +2148,41 @@ impl<'a> Codegen<'a> {
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self.assert_ty(pos, &mut value, expected, "return value");
|
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|
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if self.ci.inline_depth == 0 {
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debug_assert_ne!(self.ci.ctrl, VOID);
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let mut inps = Vc::from([self.ci.ctrl, value.id]);
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debug_assert_ne!(self.ci.ctrl.get(), VOID);
|
||||
let mut inps = Vc::from([self.ci.ctrl.get(), value.id]);
|
||||
self.ci.nodes.load_loop_store(&mut self.ci.scope.store, &mut self.ci.loops);
|
||||
inps.push(self.ci.scope.store.value());
|
||||
|
||||
self.ci.ctrl = self.ci.nodes.new_node(ty::Id::VOID, Kind::Return, inps);
|
||||
|
||||
self.ci.nodes[NEVER].inputs.push(self.ci.ctrl);
|
||||
self.ci.nodes[self.ci.ctrl].outputs.push(NEVER);
|
||||
} else if let Some((pv, ctrl, scope)) = &mut self.ci.inline_ret {
|
||||
self.ci.nodes.unlock(*ctrl);
|
||||
*ctrl =
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Region, [self.ci.ctrl, *ctrl]);
|
||||
self.ci.nodes.lock(*ctrl);
|
||||
Self::merge_scopes(
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Return, inps),
|
||||
&mut self.ci.nodes,
|
||||
&mut self.ci.loops,
|
||||
*ctrl,
|
||||
scope,
|
||||
&mut self.ci.scope,
|
||||
);
|
||||
|
||||
self.ci.nodes[NEVER].inputs.push(self.ci.ctrl.get());
|
||||
self.ci.nodes[self.ci.ctrl.get()].outputs.push(NEVER);
|
||||
} else if let Some((pv, ctrl, scope)) = &mut self.ci.inline_ret {
|
||||
ctrl.set(
|
||||
self.ci
|
||||
.nodes
|
||||
.new_node(ty::Id::VOID, Kind::Region, [self.ci.ctrl.get(), ctrl.get()]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
self.ci.nodes.merge_scopes(&mut self.ci.loops, ctrl, scope, &mut self.ci.scope);
|
||||
self.ci.nodes.unlock(pv.id);
|
||||
pv.id = self.ci.nodes.new_node(value.ty, Kind::Phi, [*ctrl, value.id, pv.id]);
|
||||
pv.id =
|
||||
self.ci.nodes.new_node(value.ty, Kind::Phi, [ctrl.get(), value.id, pv.id]);
|
||||
self.ci.nodes.lock(pv.id);
|
||||
self.ci.ctrl = *ctrl;
|
||||
self.ci.ctrl.set(NEVER, &mut self.ci.nodes);
|
||||
} else {
|
||||
self.ci.nodes.lock(value.id);
|
||||
self.ci.nodes.lock(self.ci.ctrl);
|
||||
let mut scope = self.ci.scope.dup(&mut self.ci.nodes);
|
||||
scope
|
||||
.vars
|
||||
.drain(self.ci.inline_var_base..)
|
||||
.for_each(|v| v.remove(&mut self.ci.nodes));
|
||||
self.ci.inline_ret = Some((value, self.ci.ctrl, scope));
|
||||
let repl = StrongRef::new(NEVER, &mut self.ci.nodes);
|
||||
self.ci.inline_ret =
|
||||
Some((value, mem::replace(&mut self.ci.ctrl, repl), scope));
|
||||
}
|
||||
|
||||
None
|
||||
|
|
@ -2232,7 +2321,7 @@ impl<'a> Codegen<'a> {
|
|||
|
||||
match lhs.ty.expand() {
|
||||
_ if lhs.ty.is_pointer() || lhs.ty.is_integer() || lhs.ty == ty::Id::BOOL => {
|
||||
if core::mem::take(&mut lhs.ptr) {
|
||||
if mem::take(&mut lhs.ptr) {
|
||||
lhs.id = self.load_mem(lhs.id, lhs.ty);
|
||||
}
|
||||
self.ci.nodes.lock(lhs.id);
|
||||
|
|
@ -2349,7 +2438,7 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
|
||||
match ty.loc(self.tys) {
|
||||
Loc::Reg if core::mem::take(&mut val.ptr) => val.id = self.load_mem(val.id, ty),
|
||||
Loc::Reg if mem::take(&mut val.ptr) => val.id = self.load_mem(val.id, ty),
|
||||
Loc::Stack if !val.ptr => {
|
||||
let stack = self.ci.nodes.new_node_nop(ty, Kind::Stck, [VOID, MEM]);
|
||||
self.store_mem(stack, val.ty, val.id);
|
||||
|
|
@ -2443,12 +2532,12 @@ impl<'a> Codegen<'a> {
|
|||
|
||||
if has_ptr_arg {
|
||||
inps.push(self.ci.scope.store.value());
|
||||
self.ci.scope.loads.retain(|&load| {
|
||||
if inps.contains(&load) {
|
||||
self.ci.scope.loads.retain_mut(|load| {
|
||||
if inps.contains(&load.get()) {
|
||||
return true;
|
||||
}
|
||||
|
||||
if !self.ci.nodes.unlock_remove(load) {
|
||||
if let Some(load) = mem::take(load).remove(&mut self.ci.nodes) {
|
||||
inps.push(load);
|
||||
}
|
||||
|
||||
|
|
@ -2465,14 +2554,17 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
};
|
||||
|
||||
inps[0] = self.ci.ctrl;
|
||||
self.ci.ctrl = self.ci.nodes.new_node(ty, Kind::Call { func: ty::ECA, args }, inps);
|
||||
inps[0] = self.ci.ctrl.get();
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(ty, Kind::Call { func: ty::ECA, args }, inps),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
|
||||
if has_ptr_arg {
|
||||
self.store_mem(VOID, ty::Id::VOID, VOID);
|
||||
}
|
||||
|
||||
alt_value.or(Some(Value::new(self.ci.ctrl).ty(ty)))
|
||||
alt_value.or(Some(Value::new(self.ci.ctrl.get()).ty(ty)))
|
||||
}
|
||||
Expr::Call { func, args, .. } => {
|
||||
self.ci.call_count += 1;
|
||||
|
|
@ -2531,12 +2623,12 @@ impl<'a> Codegen<'a> {
|
|||
|
||||
if has_ptr_arg {
|
||||
inps.push(self.ci.scope.store.value());
|
||||
self.ci.scope.loads.retain(|&load| {
|
||||
if inps.contains(&load) {
|
||||
self.ci.scope.loads.retain_mut(|load| {
|
||||
if inps.contains(&load.get()) {
|
||||
return true;
|
||||
}
|
||||
|
||||
if !self.ci.nodes.unlock_remove(load) {
|
||||
if let Some(load) = mem::take(load).remove(&mut self.ci.nodes) {
|
||||
inps.push(load);
|
||||
}
|
||||
|
||||
|
|
@ -2553,15 +2645,17 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
};
|
||||
|
||||
inps[0] = self.ci.ctrl;
|
||||
self.ci.ctrl =
|
||||
self.ci.nodes.new_node(sig.ret, Kind::Call { func: fu, args: sig.args }, inps);
|
||||
inps[0] = self.ci.ctrl.get();
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(sig.ret, Kind::Call { func: fu, args: sig.args }, inps),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
|
||||
if has_ptr_arg {
|
||||
self.store_mem(VOID, ty::Id::VOID, VOID);
|
||||
}
|
||||
|
||||
alt_value.or(Some(Value::new(self.ci.ctrl).ty(sig.ret)))
|
||||
alt_value.or(Some(Value::new(self.ci.ctrl.get()).ty(sig.ret)))
|
||||
}
|
||||
Expr::Directive { name: "inline", args: [func, args @ ..], .. } => {
|
||||
let ty = self.ty(func);
|
||||
|
|
@ -2641,10 +2735,10 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
|
||||
let prev_var_base =
|
||||
core::mem::replace(&mut self.ci.inline_var_base, self.ci.scope.vars.len());
|
||||
mem::replace(&mut self.ci.inline_var_base, self.ci.scope.vars.len());
|
||||
let prev_ret = self.ci.ret.replace(sig.ret);
|
||||
let prev_inline_ret = self.ci.inline_ret.take();
|
||||
let prev_file = core::mem::replace(&mut self.ci.file, file);
|
||||
let prev_file = mem::replace(&mut self.ci.file, file);
|
||||
self.ci.inline_depth += 1;
|
||||
|
||||
if self.expr(body).is_some() && sig.ret == ty::Id::VOID {
|
||||
|
|
@ -2663,21 +2757,14 @@ impl<'a> Codegen<'a> {
|
|||
var.remove(&mut self.ci.nodes);
|
||||
}
|
||||
|
||||
core::mem::replace(&mut self.ci.inline_ret, prev_inline_ret).map(
|
||||
|(v, ctrl, scope)| {
|
||||
self.ci.nodes.unlock(ctrl);
|
||||
self.ci.nodes.unlock(v.id);
|
||||
self.ci.scope.clear(&mut self.ci.nodes);
|
||||
self.ci.scope = scope;
|
||||
self.ci
|
||||
.scope
|
||||
.vars
|
||||
.drain(var_base..)
|
||||
.for_each(|v| v.remove(&mut self.ci.nodes));
|
||||
self.ci.ctrl = ctrl;
|
||||
v
|
||||
},
|
||||
)
|
||||
mem::replace(&mut self.ci.inline_ret, prev_inline_ret).map(|(v, ctrl, scope)| {
|
||||
self.ci.nodes.unlock(v.id);
|
||||
self.ci.scope.clear(&mut self.ci.nodes);
|
||||
self.ci.scope = scope;
|
||||
self.ci.scope.vars.drain(var_base..).for_each(|v| v.remove(&mut self.ci.nodes));
|
||||
mem::replace(&mut self.ci.ctrl, ctrl).remove(&mut self.ci.nodes);
|
||||
v
|
||||
})
|
||||
}
|
||||
Expr::Tupl { pos, ty, fields, .. } => {
|
||||
let Some(sty) = ty.map(|ty| self.ty(ty)).or(ctx.ty) else {
|
||||
|
|
@ -2815,7 +2902,7 @@ impl<'a> Codegen<'a> {
|
|||
};
|
||||
|
||||
let (ty, offset) =
|
||||
core::mem::replace(&mut offs[index], (ty::Id::UNDECLARED, field.pos));
|
||||
mem::replace(&mut offs[index], (ty::Id::UNDECLARED, field.pos));
|
||||
|
||||
if ty == ty::Id::UNDECLARED {
|
||||
self.report(field.pos, "the struct field is already initialized");
|
||||
|
|
@ -2858,19 +2945,20 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
}
|
||||
|
||||
self.ci.nodes.lock(self.ci.ctrl);
|
||||
for var in self.ci.scope.vars.drain(base..) {
|
||||
var.remove(&mut self.ci.nodes);
|
||||
}
|
||||
self.ci.nodes.unlock(self.ci.ctrl);
|
||||
|
||||
ret
|
||||
}
|
||||
Expr::Loop { body, .. } => {
|
||||
self.ci.ctrl = self.ci.nodes.new_node(ty::Id::VOID, Kind::Loop, [self.ci.ctrl; 2]);
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Loop, [self.ci.ctrl.get(); 2]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
self.ci.loops.push(Loop {
|
||||
node: self.ci.ctrl,
|
||||
ctrl: [Nid::MAX; 2],
|
||||
node: self.ci.ctrl.get(),
|
||||
ctrl: [StrongRef::DEFAULT; 2],
|
||||
ctrl_scope: core::array::from_fn(|_| Default::default()),
|
||||
scope: self.ci.scope.dup(&mut self.ci.nodes),
|
||||
});
|
||||
|
|
@ -2883,27 +2971,28 @@ impl<'a> Codegen<'a> {
|
|||
|
||||
let Loop { ctrl: [con, ..], ctrl_scope: [cons, ..], .. } =
|
||||
self.ci.loops.last_mut().unwrap();
|
||||
let mut cons = core::mem::take(cons);
|
||||
let mut con = *con;
|
||||
let mut cons = mem::take(cons);
|
||||
|
||||
if con != Nid::MAX {
|
||||
self.ci.nodes.unlock(con);
|
||||
con = self.ci.nodes.new_node(ty::Id::VOID, Kind::Region, [con, self.ci.ctrl]);
|
||||
Self::merge_scopes(
|
||||
if let Some(con) = mem::take(con).unwrap(&mut self.ci.nodes) {
|
||||
self.ci.ctrl.set(
|
||||
self.ci
|
||||
.nodes
|
||||
.new_node(ty::Id::VOID, Kind::Region, [con, self.ci.ctrl.get()]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
self.ci.nodes.merge_scopes(
|
||||
&mut self.ci.loops,
|
||||
con,
|
||||
&self.ci.ctrl,
|
||||
&mut self.ci.scope,
|
||||
&mut cons,
|
||||
);
|
||||
cons.clear(&mut self.ci.nodes);
|
||||
self.ci.ctrl = con;
|
||||
}
|
||||
|
||||
let Loop { node, ctrl: [.., bre], ctrl_scope: [.., mut bres], mut scope } =
|
||||
self.ci.loops.pop().unwrap();
|
||||
|
||||
self.ci.nodes.modify_input(node, 1, self.ci.ctrl);
|
||||
self.ci.nodes.modify_input(node, 1, self.ci.ctrl.get());
|
||||
|
||||
if let Some(idx) =
|
||||
self.ci.nodes[node].outputs.iter().position(|&n| self.ci.nodes.is_cfg(n))
|
||||
|
|
@ -2911,7 +3000,7 @@ impl<'a> Codegen<'a> {
|
|||
self.ci.nodes[node].outputs.swap(idx, 0);
|
||||
}
|
||||
|
||||
if bre == Nid::MAX {
|
||||
let Some(bre) = bre.unwrap(&mut self.ci.nodes) else {
|
||||
for (loop_var, scope_var) in self.ci.scope.iter_mut().zip(scope.iter_mut()) {
|
||||
if self.ci.nodes[scope_var.value()].is_lazy_phi(node) {
|
||||
if loop_var.value() != scope_var.value() {
|
||||
|
|
@ -2932,12 +3021,13 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
}
|
||||
scope.clear(&mut self.ci.nodes);
|
||||
self.ci.ctrl = NEVER;
|
||||
self.ci.ctrl.set(NEVER, &mut self.ci.nodes);
|
||||
return None;
|
||||
}
|
||||
self.ci.ctrl = bre;
|
||||
};
|
||||
|
||||
core::mem::swap(&mut self.ci.scope, &mut bres);
|
||||
self.ci.ctrl.set(bre, &mut self.ci.nodes);
|
||||
|
||||
mem::swap(&mut self.ci.scope, &mut bres);
|
||||
|
||||
debug_assert_eq!(self.ci.scope.vars.len(), scope.vars.len());
|
||||
debug_assert_eq!(self.ci.scope.vars.len(), bres.vars.len());
|
||||
|
|
@ -2973,13 +3063,12 @@ impl<'a> Codegen<'a> {
|
|||
|
||||
scope.clear(&mut self.ci.nodes);
|
||||
bres.clear(&mut self.ci.nodes);
|
||||
self.ci.scope.loads.drain(..).for_each(|l| _ = self.ci.nodes.unlock_remove(l));
|
||||
self.ci.scope.loads.drain(..).for_each(|l| _ = l.remove(&mut self.ci.nodes));
|
||||
|
||||
self.ci.nodes.unlock(self.ci.ctrl);
|
||||
self.ci.nodes.unlock(node);
|
||||
let rpl = self.ci.nodes.late_peephole(node).unwrap_or(node);
|
||||
if self.ci.ctrl == node {
|
||||
self.ci.ctrl = rpl;
|
||||
if self.ci.ctrl.get() == node {
|
||||
self.ci.ctrl.set_remove(rpl, &mut self.ci.nodes);
|
||||
}
|
||||
|
||||
Some(Value::VOID)
|
||||
|
|
@ -2991,7 +3080,7 @@ impl<'a> Codegen<'a> {
|
|||
self.assert_ty(cond.pos(), &mut cnd, ty::Id::BOOL, "condition");
|
||||
|
||||
let if_node =
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::If, [self.ci.ctrl, cnd.id]);
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::If, [self.ci.ctrl.get(), cnd.id]);
|
||||
|
||||
'b: {
|
||||
let branch = match self.tof(if_node).expand().inner() {
|
||||
|
|
@ -3000,9 +3089,7 @@ impl<'a> Codegen<'a> {
|
|||
_ => break 'b,
|
||||
};
|
||||
|
||||
self.ci.nodes.lock(self.ci.ctrl);
|
||||
self.ci.nodes.remove(if_node);
|
||||
self.ci.nodes.unlock(self.ci.ctrl);
|
||||
|
||||
if let Some(branch) = branch {
|
||||
return self.expr(branch);
|
||||
|
|
@ -3015,15 +3102,21 @@ impl<'a> Codegen<'a> {
|
|||
let orig_store = self.ci.scope.store.dup(&mut self.ci.nodes);
|
||||
let else_scope = self.ci.scope.dup(&mut self.ci.nodes);
|
||||
|
||||
self.ci.ctrl = self.ci.nodes.new_node(ty::Id::VOID, Kind::Then, [if_node]);
|
||||
let lcntrl = self.expr(then).map_or(Nid::MAX, |_| self.ci.ctrl);
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Then, [if_node]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
let lcntrl = self.expr(then).map_or(Nid::MAX, |_| self.ci.ctrl.get());
|
||||
|
||||
let mut then_scope = core::mem::replace(&mut self.ci.scope, else_scope);
|
||||
self.ci.ctrl = self.ci.nodes.new_node(ty::Id::VOID, Kind::Else, [if_node]);
|
||||
let mut then_scope = mem::replace(&mut self.ci.scope, else_scope);
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Else, [if_node]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
let rcntrl = if let Some(else_) = else_ {
|
||||
self.expr(else_).map_or(Nid::MAX, |_| self.ci.ctrl)
|
||||
self.expr(else_).map_or(Nid::MAX, |_| self.ci.ctrl.get())
|
||||
} else {
|
||||
self.ci.ctrl
|
||||
self.ci.ctrl.get()
|
||||
};
|
||||
|
||||
orig_store.remove(&mut self.ci.nodes);
|
||||
|
|
@ -3037,16 +3130,18 @@ impl<'a> Codegen<'a> {
|
|||
} else if rcntrl == Nid::MAX {
|
||||
self.ci.scope.clear(&mut self.ci.nodes);
|
||||
self.ci.scope = then_scope;
|
||||
self.ci.ctrl = lcntrl;
|
||||
self.ci.ctrl.set(lcntrl, &mut self.ci.nodes);
|
||||
return Some(Value::VOID);
|
||||
}
|
||||
|
||||
self.ci.ctrl = self.ci.nodes.new_node(ty::Id::VOID, Kind::Region, [lcntrl, rcntrl]);
|
||||
|
||||
Self::merge_scopes(
|
||||
self.ci.ctrl.set(
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Region, [lcntrl, rcntrl]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
|
||||
self.ci.nodes.merge_scopes(
|
||||
&mut self.ci.loops,
|
||||
self.ci.ctrl,
|
||||
&self.ci.ctrl,
|
||||
&mut self.ci.scope,
|
||||
&mut then_scope,
|
||||
);
|
||||
|
|
@ -3209,7 +3304,7 @@ impl<'a> Codegen<'a> {
|
|||
fn expr_ctx(&mut self, expr: &Expr, ctx: Ctx) -> Option<Value> {
|
||||
let mut n = self.raw_expr_ctx(expr, ctx)?;
|
||||
self.strip_var(&mut n);
|
||||
if core::mem::take(&mut n.ptr) {
|
||||
if mem::take(&mut n.ptr) {
|
||||
n.id = self.load_mem(n.id, n.ty);
|
||||
}
|
||||
Some(n)
|
||||
|
|
@ -3226,7 +3321,7 @@ impl<'a> Codegen<'a> {
|
|||
}
|
||||
|
||||
fn strip_var(&mut self, n: &mut Value) {
|
||||
if core::mem::take(&mut n.var) {
|
||||
if mem::take(&mut n.var) {
|
||||
let id = (u16::MAX - n.id) as usize;
|
||||
n.ptr = self.ci.scope.vars[id].ptr;
|
||||
n.id = self.ci.scope.vars[id].value();
|
||||
|
|
@ -3243,69 +3338,36 @@ impl<'a> Codegen<'a> {
|
|||
return None;
|
||||
};
|
||||
|
||||
if loob.ctrl[id] == Nid::MAX {
|
||||
self.ci.nodes.lock(self.ci.ctrl);
|
||||
loob.ctrl[id] = self.ci.ctrl;
|
||||
if loob.ctrl[id].is_live() {
|
||||
loob.ctrl[id].set(
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Region, [
|
||||
self.ci.ctrl.get(),
|
||||
loob.ctrl[id].get(),
|
||||
]),
|
||||
&mut self.ci.nodes,
|
||||
);
|
||||
let mut scope = mem::take(&mut loob.ctrl_scope[id]);
|
||||
let ctrl = mem::take(&mut loob.ctrl[id]);
|
||||
|
||||
self.ci.nodes.merge_scopes(&mut self.ci.loops, &ctrl, &mut scope, &mut self.ci.scope);
|
||||
|
||||
loob = self.ci.loops.last_mut().unwrap();
|
||||
loob.ctrl_scope[id] = scope;
|
||||
loob.ctrl[id] = ctrl;
|
||||
self.ci.ctrl.set(NEVER, &mut self.ci.nodes);
|
||||
} else {
|
||||
let term = StrongRef::new(NEVER, &mut self.ci.nodes);
|
||||
loob.ctrl[id] = mem::replace(&mut self.ci.ctrl, term);
|
||||
loob.ctrl_scope[id] = self.ci.scope.dup(&mut self.ci.nodes);
|
||||
loob.ctrl_scope[id]
|
||||
.vars
|
||||
.drain(loob.scope.vars.len()..)
|
||||
.for_each(|v| v.remove(&mut self.ci.nodes));
|
||||
} else {
|
||||
let reg =
|
||||
self.ci.nodes.new_node(ty::Id::VOID, Kind::Region, [self.ci.ctrl, loob.ctrl[id]]);
|
||||
let mut scope = core::mem::take(&mut loob.ctrl_scope[id]);
|
||||
|
||||
Self::merge_scopes(
|
||||
&mut self.ci.nodes,
|
||||
&mut self.ci.loops,
|
||||
reg,
|
||||
&mut scope,
|
||||
&mut self.ci.scope,
|
||||
);
|
||||
|
||||
loob = self.ci.loops.last_mut().unwrap();
|
||||
loob.ctrl_scope[id] = scope;
|
||||
self.ci.nodes.unlock(loob.ctrl[id]);
|
||||
loob.ctrl[id] = reg;
|
||||
self.ci.nodes.lock(loob.ctrl[id]);
|
||||
}
|
||||
|
||||
self.ci.ctrl = NEVER;
|
||||
None
|
||||
}
|
||||
|
||||
fn merge_scopes(
|
||||
nodes: &mut Nodes,
|
||||
loops: &mut [Loop],
|
||||
ctrl: Nid,
|
||||
to: &mut Scope,
|
||||
from: &mut Scope,
|
||||
) {
|
||||
nodes.lock(ctrl);
|
||||
for (i, (to_value, from_value)) in to.iter_mut().zip(from.iter_mut()).enumerate() {
|
||||
debug_assert_eq!(to_value.ty, from_value.ty);
|
||||
if to_value.value() != from_value.value() {
|
||||
nodes.load_loop_var(i, from_value, loops);
|
||||
nodes.load_loop_var(i, to_value, loops);
|
||||
if to_value.value() != from_value.value() {
|
||||
let inps = [ctrl, from_value.value(), to_value.value()];
|
||||
to_value
|
||||
.set_value_remove(nodes.new_node(from_value.ty, Kind::Phi, inps), nodes);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for load in to.loads.drain(..) {
|
||||
nodes.unlock_remove(load);
|
||||
}
|
||||
for load in from.loads.drain(..) {
|
||||
nodes.unlock_remove(load);
|
||||
}
|
||||
|
||||
nodes.unlock(ctrl);
|
||||
}
|
||||
|
||||
#[inline(always)]
|
||||
fn tof(&self, id: Nid) -> ty::Id {
|
||||
self.ci.nodes[id].ty
|
||||
|
|
@ -3417,7 +3479,7 @@ impl<'a> Codegen<'a> {
|
|||
|
||||
if let Some(oper) = to_correct {
|
||||
oper.ty = upcasted;
|
||||
if core::mem::take(&mut oper.ptr) {
|
||||
if mem::take(&mut oper.ptr) {
|
||||
oper.id = self.load_mem(oper.id, oper.ty);
|
||||
}
|
||||
oper.id = self.ci.nodes.new_node(upcasted, Kind::Extend, [VOID, oper.id]);
|
||||
|
|
@ -3468,7 +3530,7 @@ impl<'a> Codegen<'a> {
|
|||
self.ty_display(upcasted)
|
||||
);
|
||||
src.ty = upcasted;
|
||||
if core::mem::take(&mut src.ptr) {
|
||||
if mem::take(&mut src.ptr) {
|
||||
src.id = self.load_mem(src.id, src.ty);
|
||||
}
|
||||
src.id = self.ci.nodes.new_node(upcasted, Kind::Extend, [VOID, src.id]);
|
||||
|
|
@ -3505,7 +3567,7 @@ impl TypeParser for Codegen<'_> {
|
|||
}
|
||||
|
||||
fn eval_const(&mut self, file: FileId, expr: &Expr, ret: ty::Id) -> u64 {
|
||||
let mut scope = core::mem::take(&mut self.ci.scope.vars);
|
||||
let mut scope = mem::take(&mut self.ci.scope.vars);
|
||||
self.pool.push_ci(file, Some(ret), self.tys.tasks.len(), &mut self.ci);
|
||||
self.ci.scope.vars = scope;
|
||||
|
||||
|
|
@ -3513,7 +3575,7 @@ impl TypeParser for Codegen<'_> {
|
|||
|
||||
self.expr(&Expr::Return { pos: expr.pos(), val: Some(expr) });
|
||||
|
||||
scope = core::mem::take(&mut self.ci.scope.vars);
|
||||
scope = mem::take(&mut self.ci.scope.vars);
|
||||
self.ci.finalize();
|
||||
|
||||
let res = if self.errors.borrow().len() == prev_err_len {
|
||||
|
|
@ -3531,6 +3593,7 @@ impl TypeParser for Codegen<'_> {
|
|||
fn infer_type(&mut self, expr: &Expr) -> ty::Id {
|
||||
self.pool.save_ci(&self.ci);
|
||||
let ty = self.expr(expr).map_or(ty::Id::NEVER, |v| v.ty);
|
||||
|
||||
self.pool.restore_ci(&mut self.ci);
|
||||
ty
|
||||
}
|
||||
|
|
@ -3729,13 +3792,13 @@ impl<'a> Function<'a> {
|
|||
&& let Some((_, swapped)) = op.cond_op(node.ty.is_signed())
|
||||
{
|
||||
if swapped {
|
||||
core::mem::swap(&mut then, &mut else_);
|
||||
mem::swap(&mut then, &mut else_);
|
||||
}
|
||||
let &[_, lhs, rhs] = self.nodes[cond].inputs.as_slice() else { unreachable!() };
|
||||
let ops = vec![self.urg(lhs), self.urg(rhs)];
|
||||
self.add_instr(nid, ops);
|
||||
} else {
|
||||
core::mem::swap(&mut then, &mut else_);
|
||||
mem::swap(&mut then, &mut else_);
|
||||
let ops = vec![self.urg(cond)];
|
||||
self.add_instr(nid, ops);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue