forked from AbleOS/holey-bytes
bruhma
This commit is contained in:
mlokr
parent
e4e7f8d5b5
commit
4d163a2313
320
Cargo.lock
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|
||||||
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_i686_gnu"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_i686_gnullvm"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_i686_msvc"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_x86_64_gnu"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_x86_64_gnullvm"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_x86_64_msvc"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "xtask"
|
name = "xtask"
|
||||||
version = "0.1.0"
|
version = "0.1.0"
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "zerocopy"
|
|
||||||
version = "0.7.35"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
|
|
||||||
dependencies = [
|
|
||||||
"zerocopy-derive",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "zerocopy-derive"
|
|
||||||
version = "0.7.35"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
|
|
||||||
dependencies = [
|
|
||||||
"proc-macro2",
|
|
||||||
"quote",
|
|
||||||
"syn",
|
|
||||||
]
|
|
||||||
|
|
|
||||||
|
|
@ -8,7 +8,5 @@ name = "hbc"
|
||||||
path = "src/main.rs"
|
path = "src/main.rs"
|
||||||
|
|
||||||
[dependencies]
|
[dependencies]
|
||||||
env_logger = "0.11.5"
|
|
||||||
hbvm = { path = "../hbvm", features = ["nightly"] }
|
hbvm = { path = "../hbvm", features = ["nightly"] }
|
||||||
log = "0.4.22"
|
regalloc2 = { git = "https://github.com/jakubDoka/regalloc2" }
|
||||||
regalloc2 = { version = "0.10.2", features = ["trace-log"] }
|
|
||||||
|
|
|
||||||
|
|
@ -1712,8 +1712,7 @@ impl Codegen {
|
||||||
self.ci.emit(instrs::st(reg::RET_ADDR, reg::STACK_PTR, 0, 0));
|
self.ci.emit(instrs::st(reg::RET_ADDR, reg::STACK_PTR, 0, 0));
|
||||||
}
|
}
|
||||||
|
|
||||||
self.ci.nodes.basic_blocks();
|
//self.ci.nodes.basic_blocks();
|
||||||
|
|
||||||
//self.ci.nodes.graphviz();
|
//self.ci.nodes.graphviz();
|
||||||
|
|
||||||
self.ci.vars = orig_vars;
|
self.ci.vars = orig_vars;
|
||||||
|
|
@ -1761,412 +1760,6 @@ impl Codegen {
|
||||||
}
|
}
|
||||||
|
|
||||||
fn emit_body(&mut self, sig: Sig) -> usize {
|
fn emit_body(&mut self, sig: Sig) -> usize {
|
||||||
// FIXME: make this more efficient (allocated with arena)
|
|
||||||
|
|
||||||
#[derive(Debug)]
|
|
||||||
struct Block {
|
|
||||||
nid: Nid,
|
|
||||||
preds: Vec<regalloc2::Block>,
|
|
||||||
succs: Vec<regalloc2::Block>,
|
|
||||||
instrs: regalloc2::InstRange,
|
|
||||||
params: Vec<regalloc2::VReg>,
|
|
||||||
branch_blockparams: Vec<regalloc2::VReg>,
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Debug)]
|
|
||||||
struct Instr {
|
|
||||||
nid: Nid,
|
|
||||||
ops: Vec<regalloc2::Operand>,
|
|
||||||
}
|
|
||||||
|
|
||||||
struct Function<'a> {
|
|
||||||
sig: Sig,
|
|
||||||
nodes: &'a mut Nodes,
|
|
||||||
tys: &'a Types,
|
|
||||||
blocks: Vec<Block>,
|
|
||||||
instrs: Vec<Instr>,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl Debug for Function<'_> {
|
|
||||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
||||||
for (i, block) in self.blocks.iter().enumerate() {
|
|
||||||
writeln!(f, "sb{i}{:?}-{:?}:", block.params, block.preds)?;
|
|
||||||
|
|
||||||
for inst in block.instrs.iter() {
|
|
||||||
let instr = &self.instrs[inst.index()];
|
|
||||||
writeln!(
|
|
||||||
f,
|
|
||||||
"{}: i{:?}:{:?}",
|
|
||||||
inst.index(),
|
|
||||||
self.nodes[instr.nid].kind,
|
|
||||||
instr.ops
|
|
||||||
)?;
|
|
||||||
}
|
|
||||||
|
|
||||||
writeln!(f, "eb{i}{:?}-{:?}:", block.branch_blockparams, block.succs)?;
|
|
||||||
}
|
|
||||||
Ok(())
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl<'a> Function<'a> {
|
|
||||||
fn new(nodes: &'a mut Nodes, tys: &'a Types, sig: Sig) -> Self {
|
|
||||||
let mut s = Self {
|
|
||||||
nodes,
|
|
||||||
tys,
|
|
||||||
sig,
|
|
||||||
blocks: Default::default(),
|
|
||||||
instrs: Default::default(),
|
|
||||||
};
|
|
||||||
s.nodes.visited.clear(s.nodes.values.len());
|
|
||||||
s.emit_node(VOID, VOID);
|
|
||||||
s.add_block(0);
|
|
||||||
s.blocks.pop();
|
|
||||||
s
|
|
||||||
}
|
|
||||||
|
|
||||||
fn add_block(&mut self, nid: Nid) -> RallocBRef {
|
|
||||||
if let Some(prev) = self.blocks.last_mut() {
|
|
||||||
prev.instrs = regalloc2::InstRange::new(
|
|
||||||
prev.instrs.first(),
|
|
||||||
regalloc2::Inst::new(self.instrs.len()),
|
|
||||||
);
|
|
||||||
}
|
|
||||||
|
|
||||||
self.blocks.push(Block {
|
|
||||||
nid,
|
|
||||||
preds: Default::default(),
|
|
||||||
succs: Default::default(),
|
|
||||||
instrs: regalloc2::InstRange::new(
|
|
||||||
regalloc2::Inst::new(self.instrs.len()),
|
|
||||||
regalloc2::Inst::new(self.instrs.len() + 1),
|
|
||||||
),
|
|
||||||
params: Default::default(),
|
|
||||||
branch_blockparams: Default::default(),
|
|
||||||
});
|
|
||||||
self.blocks.len() as RallocBRef - 1
|
|
||||||
}
|
|
||||||
|
|
||||||
fn add_instr(&mut self, nid: Nid, ops: Vec<regalloc2::Operand>) {
|
|
||||||
self.instrs.push(Instr { nid, ops });
|
|
||||||
}
|
|
||||||
|
|
||||||
fn urg(&mut self, nid: Nid) -> regalloc2::Operand {
|
|
||||||
regalloc2::Operand::reg_use(self.rg(nid))
|
|
||||||
}
|
|
||||||
|
|
||||||
fn def_nid(&mut self, _nid: Nid) {}
|
|
||||||
|
|
||||||
fn drg(&mut self, nid: Nid) -> regalloc2::Operand {
|
|
||||||
self.def_nid(nid);
|
|
||||||
regalloc2::Operand::reg_def(self.rg(nid))
|
|
||||||
}
|
|
||||||
|
|
||||||
fn rg(&self, nid: Nid) -> VReg {
|
|
||||||
regalloc2::VReg::new(nid as _, regalloc2::RegClass::Int)
|
|
||||||
}
|
|
||||||
|
|
||||||
fn emit_node(&mut self, nid: Nid, prev: Nid) {
|
|
||||||
if matches!(self.nodes[nid].kind, Kind::Region | Kind::Loop) {
|
|
||||||
let prev_bref = self.nodes[prev].ralloc_backref;
|
|
||||||
let node = self.nodes[nid].clone();
|
|
||||||
|
|
||||||
let idx = 1 + node.inputs.iter().position(|&i| i == prev).unwrap();
|
|
||||||
|
|
||||||
for ph in node.outputs {
|
|
||||||
if self.nodes[ph].kind != Kind::Phi {
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
|
|
||||||
let rg = self.rg(self.nodes[ph].inputs[idx]);
|
|
||||||
self.blocks[prev_bref as usize].branch_blockparams.push(rg);
|
|
||||||
}
|
|
||||||
|
|
||||||
self.add_instr(nid, vec![]);
|
|
||||||
|
|
||||||
match (self.nodes[nid].kind, self.nodes.visited.set(nid)) {
|
|
||||||
(Kind::Loop, false) => {
|
|
||||||
for i in node.inputs {
|
|
||||||
self.bridge(i, nid);
|
|
||||||
}
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
(Kind::Region, true) => return,
|
|
||||||
_ => {}
|
|
||||||
}
|
|
||||||
} else if !self.nodes.visited.set(nid) {
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
let node = self.nodes[nid].clone();
|
|
||||||
match node.kind {
|
|
||||||
Kind::Start => self.emit_node(node.outputs[0], VOID),
|
|
||||||
Kind::End => {}
|
|
||||||
Kind::If => {
|
|
||||||
self.nodes[nid].ralloc_backref = self.nodes[prev].ralloc_backref;
|
|
||||||
|
|
||||||
let &[_, cond] = node.inputs.as_slice() else { unreachable!() };
|
|
||||||
let &[mut then, mut else_] = node.outputs.as_slice() else {
|
|
||||||
unreachable!()
|
|
||||||
};
|
|
||||||
|
|
||||||
if let Kind::BinOp { op } = self.nodes[cond].kind
|
|
||||||
&& let Some((_, swapped)) = op.cond_op(node.ty.is_signed())
|
|
||||||
{
|
|
||||||
if swapped {
|
|
||||||
std::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 {
|
|
||||||
todo!()
|
|
||||||
}
|
|
||||||
|
|
||||||
self.emit_node(then, nid);
|
|
||||||
self.emit_node(else_, nid);
|
|
||||||
}
|
|
||||||
Kind::Region | Kind::Loop => {
|
|
||||||
self.nodes[nid].ralloc_backref = self.add_block(nid);
|
|
||||||
if node.kind == Kind::Region {
|
|
||||||
for i in node.inputs {
|
|
||||||
self.bridge(i, nid);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
let mut block = vec![];
|
|
||||||
for ph in node.outputs.clone() {
|
|
||||||
if self.nodes[ph].kind != Kind::Phi {
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
self.def_nid(ph);
|
|
||||||
block.push(self.rg(ph));
|
|
||||||
}
|
|
||||||
self.blocks[self.nodes[nid].ralloc_backref as usize].params = block;
|
|
||||||
for o in node.outputs.into_iter().rev() {
|
|
||||||
self.emit_node(o, nid);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Kind::Return => {
|
|
||||||
let ops = if node.inputs[1] != VOID {
|
|
||||||
vec![regalloc2::Operand::reg_fixed_use(
|
|
||||||
self.rg(node.inputs[1]),
|
|
||||||
regalloc2::PReg::new(1, regalloc2::RegClass::Int),
|
|
||||||
)]
|
|
||||||
} else {
|
|
||||||
vec![]
|
|
||||||
};
|
|
||||||
self.add_instr(nid, ops);
|
|
||||||
self.emit_node(node.outputs[0], nid);
|
|
||||||
}
|
|
||||||
Kind::CInt { .. } => {
|
|
||||||
let ops = vec![self.drg(nid)];
|
|
||||||
self.add_instr(nid, ops);
|
|
||||||
}
|
|
||||||
Kind::Phi => {}
|
|
||||||
Kind::Tuple { index } => {
|
|
||||||
let is_start = self.nodes[node.inputs[0]].kind == Kind::Start && index == 0;
|
|
||||||
if is_start || (self.nodes[node.inputs[0]].kind == Kind::If && index < 2) {
|
|
||||||
self.nodes[nid].ralloc_backref = self.add_block(nid);
|
|
||||||
self.bridge(prev, nid);
|
|
||||||
|
|
||||||
if is_start {
|
|
||||||
let mut parama = self.tys.parama(self.sig.ret);
|
|
||||||
for (arg, ti) in self.nodes[VOID]
|
|
||||||
.clone()
|
|
||||||
.outputs
|
|
||||||
.into_iter()
|
|
||||||
.skip(1)
|
|
||||||
.zip(self.sig.args.range())
|
|
||||||
{
|
|
||||||
let ty = self.tys.args[ti];
|
|
||||||
match self.tys.size_of(ty) {
|
|
||||||
0 => continue,
|
|
||||||
1..=8 => {
|
|
||||||
self.def_nid(arg);
|
|
||||||
self.add_instr(NEVER, vec![
|
|
||||||
regalloc2::Operand::reg_fixed_def(
|
|
||||||
self.rg(arg),
|
|
||||||
regalloc2::PReg::new(
|
|
||||||
parama.next() as _,
|
|
||||||
regalloc2::RegClass::Int,
|
|
||||||
),
|
|
||||||
),
|
|
||||||
]);
|
|
||||||
}
|
|
||||||
_ => todo!(),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
for o in node.outputs.into_iter().rev() {
|
|
||||||
self.emit_node(o, nid);
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
todo!();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Kind::BinOp { op } => {
|
|
||||||
let &[_, lhs, rhs] = node.inputs.as_slice() else { unreachable!() };
|
|
||||||
|
|
||||||
let ops = if let Kind::CInt { .. } = self.nodes[rhs].kind
|
|
||||||
&& op.imm_binop(node.ty.is_signed(), 8).is_some()
|
|
||||||
{
|
|
||||||
vec![self.drg(nid), self.urg(lhs)]
|
|
||||||
} else if op.binop(node.ty.is_signed(), 8).is_some() {
|
|
||||||
vec![self.drg(nid), self.urg(lhs), self.urg(rhs)]
|
|
||||||
} else if op.cond_op(node.ty.is_signed()).is_some() {
|
|
||||||
return;
|
|
||||||
} else {
|
|
||||||
todo!("{op}")
|
|
||||||
};
|
|
||||||
self.add_instr(nid, ops);
|
|
||||||
}
|
|
||||||
Kind::UnOp { .. } => {
|
|
||||||
let ops = vec![self.drg(nid), self.urg(node.inputs[1])];
|
|
||||||
self.add_instr(nid, ops);
|
|
||||||
}
|
|
||||||
Kind::Call { func } => {
|
|
||||||
self.nodes[nid].ralloc_backref = self.nodes[prev].ralloc_backref;
|
|
||||||
let mut ops = vec![];
|
|
||||||
|
|
||||||
let fuc = self.tys.funcs[func as usize].sig.unwrap();
|
|
||||||
if self.tys.size_of(fuc.ret) != 0 {
|
|
||||||
self.def_nid(nid);
|
|
||||||
ops.push(regalloc2::Operand::reg_fixed_def(
|
|
||||||
self.rg(nid),
|
|
||||||
regalloc2::PReg::new(1, regalloc2::RegClass::Int),
|
|
||||||
));
|
|
||||||
}
|
|
||||||
|
|
||||||
let mut parama = self.tys.parama(fuc.ret);
|
|
||||||
for (&i, ti) in node.inputs[1..].iter().zip(fuc.args.range()) {
|
|
||||||
let ty = self.tys.args[ti];
|
|
||||||
match self.tys.size_of(ty) {
|
|
||||||
0 => continue,
|
|
||||||
1..=8 => {
|
|
||||||
ops.push(regalloc2::Operand::reg_fixed_use(
|
|
||||||
self.rg(i),
|
|
||||||
regalloc2::PReg::new(
|
|
||||||
parama.next() as _,
|
|
||||||
regalloc2::RegClass::Int,
|
|
||||||
),
|
|
||||||
));
|
|
||||||
}
|
|
||||||
_ => todo!(),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
self.add_instr(nid, ops);
|
|
||||||
|
|
||||||
for o in node.outputs.into_iter().rev() {
|
|
||||||
if self.nodes[o].inputs[0] == nid {
|
|
||||||
self.emit_node(o, nid);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn bridge(&mut self, pred: u16, succ: u16) {
|
|
||||||
if self.nodes[pred].ralloc_backref == u16::MAX
|
|
||||||
|| self.nodes[succ].ralloc_backref == u16::MAX
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
self.blocks[self.nodes[pred].ralloc_backref as usize]
|
|
||||||
.succs
|
|
||||||
.push(regalloc2::Block::new(self.nodes[succ].ralloc_backref as usize));
|
|
||||||
self.blocks[self.nodes[succ].ralloc_backref as usize]
|
|
||||||
.preds
|
|
||||||
.push(regalloc2::Block::new(self.nodes[pred].ralloc_backref as usize));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl<'a> regalloc2::Function for Function<'a> {
|
|
||||||
fn num_insts(&self) -> usize {
|
|
||||||
self.instrs.len()
|
|
||||||
}
|
|
||||||
|
|
||||||
fn num_blocks(&self) -> usize {
|
|
||||||
self.blocks.len()
|
|
||||||
}
|
|
||||||
|
|
||||||
fn entry_block(&self) -> regalloc2::Block {
|
|
||||||
regalloc2::Block(0)
|
|
||||||
}
|
|
||||||
|
|
||||||
fn block_insns(&self, block: regalloc2::Block) -> regalloc2::InstRange {
|
|
||||||
self.blocks[block.index()].instrs
|
|
||||||
}
|
|
||||||
|
|
||||||
fn block_succs(&self, block: regalloc2::Block) -> &[regalloc2::Block] {
|
|
||||||
&self.blocks[block.index()].succs
|
|
||||||
}
|
|
||||||
|
|
||||||
fn block_preds(&self, block: regalloc2::Block) -> &[regalloc2::Block] {
|
|
||||||
&self.blocks[block.index()].preds
|
|
||||||
}
|
|
||||||
|
|
||||||
fn block_params(&self, block: regalloc2::Block) -> &[regalloc2::VReg] {
|
|
||||||
&self.blocks[block.index()].params
|
|
||||||
}
|
|
||||||
|
|
||||||
fn is_ret(&self, insn: regalloc2::Inst) -> bool {
|
|
||||||
self.nodes[self.instrs[insn.index()].nid].kind == Kind::Return
|
|
||||||
}
|
|
||||||
|
|
||||||
fn is_branch(&self, insn: regalloc2::Inst) -> bool {
|
|
||||||
matches!(
|
|
||||||
self.nodes[self.instrs[insn.index()].nid].kind,
|
|
||||||
Kind::If | Kind::Tuple { .. } | Kind::Loop | Kind::Region
|
|
||||||
)
|
|
||||||
}
|
|
||||||
|
|
||||||
fn branch_blockparams(
|
|
||||||
&self,
|
|
||||||
block: regalloc2::Block,
|
|
||||||
_insn: regalloc2::Inst,
|
|
||||||
_succ_idx: usize,
|
|
||||||
) -> &[regalloc2::VReg] {
|
|
||||||
debug_assert!(
|
|
||||||
self.blocks[block.index()].succs.len() == 1
|
|
||||||
|| self.blocks[block.index()].branch_blockparams.is_empty()
|
|
||||||
);
|
|
||||||
|
|
||||||
&self.blocks[block.index()].branch_blockparams
|
|
||||||
}
|
|
||||||
|
|
||||||
fn inst_operands(&self, insn: regalloc2::Inst) -> &[regalloc2::Operand] {
|
|
||||||
&self.instrs[insn.index()].ops
|
|
||||||
}
|
|
||||||
|
|
||||||
fn inst_clobbers(&self, insn: regalloc2::Inst) -> regalloc2::PRegSet {
|
|
||||||
if matches!(self.nodes[self.instrs[insn.index()].nid].kind, Kind::Call { .. }) {
|
|
||||||
let mut set = regalloc2::PRegSet::default();
|
|
||||||
for i in 2..12 {
|
|
||||||
set.add(regalloc2::PReg::new(i, regalloc2::RegClass::Int));
|
|
||||||
}
|
|
||||||
set
|
|
||||||
} else {
|
|
||||||
regalloc2::PRegSet::default()
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn num_vregs(&self) -> usize {
|
|
||||||
self.nodes.values.len()
|
|
||||||
}
|
|
||||||
|
|
||||||
fn spillslot_size(&self, regclass: regalloc2::RegClass) -> usize {
|
|
||||||
match regclass {
|
|
||||||
regalloc2::RegClass::Int => 1,
|
|
||||||
regalloc2::RegClass::Float => unreachable!(),
|
|
||||||
regalloc2::RegClass::Vector => unreachable!(),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
let mut nodes = std::mem::take(&mut self.ci.nodes);
|
let mut nodes = std::mem::take(&mut self.ci.nodes);
|
||||||
|
|
||||||
let func = Function::new(&mut nodes, &self.tys, sig);
|
let func = Function::new(&mut nodes, &self.tys, sig);
|
||||||
|
|
@ -2492,6 +2085,392 @@ impl Codegen {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// FIXME: make this more efficient (allocated with arena)
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
struct Block {
|
||||||
|
nid: Nid,
|
||||||
|
preds: Vec<regalloc2::Block>,
|
||||||
|
succs: Vec<regalloc2::Block>,
|
||||||
|
instrs: regalloc2::InstRange,
|
||||||
|
params: Vec<regalloc2::VReg>,
|
||||||
|
branch_blockparams: Vec<regalloc2::VReg>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
struct Instr {
|
||||||
|
nid: Nid,
|
||||||
|
ops: Vec<regalloc2::Operand>,
|
||||||
|
}
|
||||||
|
|
||||||
|
struct Function<'a> {
|
||||||
|
sig: Sig,
|
||||||
|
nodes: &'a mut Nodes,
|
||||||
|
tys: &'a Types,
|
||||||
|
blocks: Vec<Block>,
|
||||||
|
instrs: Vec<Instr>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Debug for Function<'_> {
|
||||||
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||||
|
for (i, block) in self.blocks.iter().enumerate() {
|
||||||
|
writeln!(f, "sb{i}{:?}-{:?}:", block.params, block.preds)?;
|
||||||
|
|
||||||
|
for inst in block.instrs.iter() {
|
||||||
|
let instr = &self.instrs[inst.index()];
|
||||||
|
writeln!(f, "{}: i{:?}:{:?}", inst.index(), self.nodes[instr.nid].kind, instr.ops)?;
|
||||||
|
}
|
||||||
|
|
||||||
|
writeln!(f, "eb{i}{:?}-{:?}:", block.branch_blockparams, block.succs)?;
|
||||||
|
}
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<'a> Function<'a> {
|
||||||
|
fn new(nodes: &'a mut Nodes, tys: &'a Types, sig: Sig) -> Self {
|
||||||
|
let mut s =
|
||||||
|
Self { nodes, tys, sig, blocks: Default::default(), instrs: Default::default() };
|
||||||
|
s.nodes.visited.clear(s.nodes.values.len());
|
||||||
|
s.emit_node(VOID, VOID);
|
||||||
|
s.add_block(0);
|
||||||
|
s.blocks.pop();
|
||||||
|
s
|
||||||
|
}
|
||||||
|
|
||||||
|
fn add_block(&mut self, nid: Nid) -> RallocBRef {
|
||||||
|
if let Some(prev) = self.blocks.last_mut() {
|
||||||
|
prev.instrs = regalloc2::InstRange::new(
|
||||||
|
prev.instrs.first(),
|
||||||
|
regalloc2::Inst::new(self.instrs.len()),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
self.blocks.push(Block {
|
||||||
|
nid,
|
||||||
|
preds: Default::default(),
|
||||||
|
succs: Default::default(),
|
||||||
|
instrs: regalloc2::InstRange::new(
|
||||||
|
regalloc2::Inst::new(self.instrs.len()),
|
||||||
|
regalloc2::Inst::new(self.instrs.len() + 1),
|
||||||
|
),
|
||||||
|
params: Default::default(),
|
||||||
|
branch_blockparams: Default::default(),
|
||||||
|
});
|
||||||
|
self.blocks.len() as RallocBRef - 1
|
||||||
|
}
|
||||||
|
|
||||||
|
fn add_instr(&mut self, nid: Nid, ops: Vec<regalloc2::Operand>) {
|
||||||
|
self.instrs.push(Instr { nid, ops });
|
||||||
|
}
|
||||||
|
|
||||||
|
fn urg(&mut self, nid: Nid) -> regalloc2::Operand {
|
||||||
|
regalloc2::Operand::reg_use(self.rg(nid))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn def_nid(&mut self, _nid: Nid) {}
|
||||||
|
|
||||||
|
fn drg(&mut self, nid: Nid) -> regalloc2::Operand {
|
||||||
|
self.def_nid(nid);
|
||||||
|
regalloc2::Operand::reg_def(self.rg(nid))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn rg(&self, nid: Nid) -> VReg {
|
||||||
|
regalloc2::VReg::new(nid as _, regalloc2::RegClass::Int)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn emit_node(&mut self, nid: Nid, prev: Nid) {
|
||||||
|
if matches!(self.nodes[nid].kind, Kind::Region | Kind::Loop) {
|
||||||
|
let prev_bref = self.nodes[prev].ralloc_backref;
|
||||||
|
let node = self.nodes[nid].clone();
|
||||||
|
|
||||||
|
let idx = 1 + node.inputs.iter().position(|&i| i == prev).unwrap();
|
||||||
|
|
||||||
|
for ph in node.outputs {
|
||||||
|
if self.nodes[ph].kind != Kind::Phi {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
let rg = self.rg(self.nodes[ph].inputs[idx]);
|
||||||
|
self.blocks[prev_bref as usize].branch_blockparams.push(rg);
|
||||||
|
}
|
||||||
|
|
||||||
|
self.add_instr(nid, vec![]);
|
||||||
|
|
||||||
|
match (self.nodes[nid].kind, self.nodes.visited.set(nid)) {
|
||||||
|
(Kind::Loop, false) => {
|
||||||
|
for i in node.inputs {
|
||||||
|
self.bridge(i, nid);
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
(Kind::Region, true) => return,
|
||||||
|
_ => {}
|
||||||
|
}
|
||||||
|
} else if !self.nodes.visited.set(nid) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
let node = self.nodes[nid].clone();
|
||||||
|
match node.kind {
|
||||||
|
Kind::Start => self.emit_node(node.outputs[0], VOID),
|
||||||
|
Kind::End => {}
|
||||||
|
Kind::If => {
|
||||||
|
self.nodes[nid].ralloc_backref = self.nodes[prev].ralloc_backref;
|
||||||
|
|
||||||
|
let &[_, cond] = node.inputs.as_slice() else { unreachable!() };
|
||||||
|
let &[mut then, mut else_] = node.outputs.as_slice() else { unreachable!() };
|
||||||
|
|
||||||
|
if let Kind::BinOp { op } = self.nodes[cond].kind
|
||||||
|
&& let Some((_, swapped)) = op.cond_op(node.ty.is_signed())
|
||||||
|
{
|
||||||
|
if swapped {
|
||||||
|
std::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 {
|
||||||
|
todo!()
|
||||||
|
}
|
||||||
|
|
||||||
|
self.emit_node(then, nid);
|
||||||
|
self.emit_node(else_, nid);
|
||||||
|
}
|
||||||
|
Kind::Region | Kind::Loop => {
|
||||||
|
self.nodes[nid].ralloc_backref = self.add_block(nid);
|
||||||
|
if node.kind == Kind::Region {
|
||||||
|
for i in node.inputs {
|
||||||
|
self.bridge(i, nid);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
let mut block = vec![];
|
||||||
|
for ph in node.outputs.clone() {
|
||||||
|
if self.nodes[ph].kind != Kind::Phi {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
self.def_nid(ph);
|
||||||
|
block.push(self.rg(ph));
|
||||||
|
}
|
||||||
|
self.blocks[self.nodes[nid].ralloc_backref as usize].params = block;
|
||||||
|
for o in node.outputs.into_iter().rev() {
|
||||||
|
self.emit_node(o, nid);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Kind::Return => {
|
||||||
|
let ops = if node.inputs[1] != VOID {
|
||||||
|
vec![regalloc2::Operand::reg_fixed_use(
|
||||||
|
self.rg(node.inputs[1]),
|
||||||
|
regalloc2::PReg::new(1, regalloc2::RegClass::Int),
|
||||||
|
)]
|
||||||
|
} else {
|
||||||
|
vec![]
|
||||||
|
};
|
||||||
|
self.add_instr(nid, ops);
|
||||||
|
self.emit_node(node.outputs[0], nid);
|
||||||
|
}
|
||||||
|
Kind::CInt { .. } => {
|
||||||
|
let ops = vec![self.drg(nid)];
|
||||||
|
self.add_instr(nid, ops);
|
||||||
|
}
|
||||||
|
Kind::Phi => {}
|
||||||
|
Kind::Tuple { index } => {
|
||||||
|
let is_start = self.nodes[node.inputs[0]].kind == Kind::Start && index == 0;
|
||||||
|
if is_start || (self.nodes[node.inputs[0]].kind == Kind::If && index < 2) {
|
||||||
|
self.nodes[nid].ralloc_backref = self.add_block(nid);
|
||||||
|
self.bridge(prev, nid);
|
||||||
|
|
||||||
|
if is_start {
|
||||||
|
let mut parama = self.tys.parama(self.sig.ret);
|
||||||
|
for (arg, ti) in self.nodes[VOID]
|
||||||
|
.clone()
|
||||||
|
.outputs
|
||||||
|
.into_iter()
|
||||||
|
.skip(1)
|
||||||
|
.zip(self.sig.args.range())
|
||||||
|
{
|
||||||
|
let ty = self.tys.args[ti];
|
||||||
|
match self.tys.size_of(ty) {
|
||||||
|
0 => continue,
|
||||||
|
1..=8 => {
|
||||||
|
self.def_nid(arg);
|
||||||
|
self.add_instr(NEVER, vec![regalloc2::Operand::reg_fixed_def(
|
||||||
|
self.rg(arg),
|
||||||
|
regalloc2::PReg::new(
|
||||||
|
parama.next() as _,
|
||||||
|
regalloc2::RegClass::Int,
|
||||||
|
),
|
||||||
|
)]);
|
||||||
|
}
|
||||||
|
_ => todo!(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
for o in node.outputs.into_iter().rev() {
|
||||||
|
self.emit_node(o, nid);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
todo!();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Kind::BinOp { op } => {
|
||||||
|
let &[_, lhs, rhs] = node.inputs.as_slice() else { unreachable!() };
|
||||||
|
|
||||||
|
let ops = if let Kind::CInt { .. } = self.nodes[rhs].kind
|
||||||
|
&& op.imm_binop(node.ty.is_signed(), 8).is_some()
|
||||||
|
{
|
||||||
|
vec![self.drg(nid), self.urg(lhs)]
|
||||||
|
} else if op.binop(node.ty.is_signed(), 8).is_some() {
|
||||||
|
vec![self.drg(nid), self.urg(lhs), self.urg(rhs)]
|
||||||
|
} else if op.cond_op(node.ty.is_signed()).is_some() {
|
||||||
|
return;
|
||||||
|
} else {
|
||||||
|
todo!("{op}")
|
||||||
|
};
|
||||||
|
self.add_instr(nid, ops);
|
||||||
|
}
|
||||||
|
Kind::UnOp { .. } => {
|
||||||
|
let ops = vec![self.drg(nid), self.urg(node.inputs[1])];
|
||||||
|
self.add_instr(nid, ops);
|
||||||
|
}
|
||||||
|
Kind::Call { func } => {
|
||||||
|
self.nodes[nid].ralloc_backref = self.nodes[prev].ralloc_backref;
|
||||||
|
let mut ops = vec![];
|
||||||
|
|
||||||
|
let fuc = self.tys.funcs[func as usize].sig.unwrap();
|
||||||
|
if self.tys.size_of(fuc.ret) != 0 {
|
||||||
|
self.def_nid(nid);
|
||||||
|
ops.push(regalloc2::Operand::reg_fixed_def(
|
||||||
|
self.rg(nid),
|
||||||
|
regalloc2::PReg::new(1, regalloc2::RegClass::Int),
|
||||||
|
));
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut parama = self.tys.parama(fuc.ret);
|
||||||
|
for (&i, ti) in node.inputs[1..].iter().zip(fuc.args.range()) {
|
||||||
|
let ty = self.tys.args[ti];
|
||||||
|
match self.tys.size_of(ty) {
|
||||||
|
0 => continue,
|
||||||
|
1..=8 => {
|
||||||
|
ops.push(regalloc2::Operand::reg_fixed_use(
|
||||||
|
self.rg(i),
|
||||||
|
regalloc2::PReg::new(parama.next() as _, regalloc2::RegClass::Int),
|
||||||
|
));
|
||||||
|
}
|
||||||
|
_ => todo!(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
self.add_instr(nid, ops);
|
||||||
|
|
||||||
|
for o in node.outputs.into_iter().rev() {
|
||||||
|
if self.nodes[o].inputs[0] == nid {
|
||||||
|
self.emit_node(o, nid);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn bridge(&mut self, pred: u16, succ: u16) {
|
||||||
|
if self.nodes[pred].ralloc_backref == u16::MAX
|
||||||
|
|| self.nodes[succ].ralloc_backref == u16::MAX
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
self.blocks[self.nodes[pred].ralloc_backref as usize]
|
||||||
|
.succs
|
||||||
|
.push(regalloc2::Block::new(self.nodes[succ].ralloc_backref as usize));
|
||||||
|
self.blocks[self.nodes[succ].ralloc_backref as usize]
|
||||||
|
.preds
|
||||||
|
.push(regalloc2::Block::new(self.nodes[pred].ralloc_backref as usize));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<'a> regalloc2::Function for Function<'a> {
|
||||||
|
fn num_insts(&self) -> usize {
|
||||||
|
self.instrs.len()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn num_blocks(&self) -> usize {
|
||||||
|
self.blocks.len()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn entry_block(&self) -> regalloc2::Block {
|
||||||
|
regalloc2::Block(0)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn block_insns(&self, block: regalloc2::Block) -> regalloc2::InstRange {
|
||||||
|
self.blocks[block.index()].instrs
|
||||||
|
}
|
||||||
|
|
||||||
|
fn block_succs(&self, block: regalloc2::Block) -> impl Iterator<Item = regalloc2::Block> {
|
||||||
|
self.blocks[block.index()].succs.iter().copied()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn block_preds(&self, block: regalloc2::Block) -> impl Iterator<Item = regalloc2::Block> {
|
||||||
|
self.blocks[block.index()].preds.iter().copied()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn block_params(&self, block: regalloc2::Block) -> impl Iterator<Item = regalloc2::VReg> {
|
||||||
|
self.blocks[block.index()].params.iter().copied()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn is_ret(&self, insn: regalloc2::Inst) -> bool {
|
||||||
|
self.nodes[self.instrs[insn.index()].nid].kind == Kind::Return
|
||||||
|
}
|
||||||
|
|
||||||
|
fn is_branch(&self, insn: regalloc2::Inst) -> bool {
|
||||||
|
matches!(
|
||||||
|
self.nodes[self.instrs[insn.index()].nid].kind,
|
||||||
|
Kind::If | Kind::Tuple { .. } | Kind::Loop | Kind::Region
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn branch_blockparams(
|
||||||
|
&self,
|
||||||
|
block: regalloc2::Block,
|
||||||
|
_insn: regalloc2::Inst,
|
||||||
|
_succ_idx: usize,
|
||||||
|
) -> impl Iterator<Item = regalloc2::VReg> {
|
||||||
|
debug_assert!(
|
||||||
|
self.blocks[block.index()].succs.len() == 1
|
||||||
|
|| self.blocks[block.index()].branch_blockparams.is_empty()
|
||||||
|
);
|
||||||
|
|
||||||
|
self.blocks[block.index()].branch_blockparams.iter().copied()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn inst_operands(&self, insn: regalloc2::Inst) -> impl Iterator<Item = regalloc2::Operand> {
|
||||||
|
self.instrs[insn.index()].ops.iter().copied()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn inst_clobbers(&self, insn: regalloc2::Inst) -> regalloc2::PRegSet {
|
||||||
|
if matches!(self.nodes[self.instrs[insn.index()].nid].kind, Kind::Call { .. }) {
|
||||||
|
let mut set = regalloc2::PRegSet::default();
|
||||||
|
for i in 2..12 {
|
||||||
|
set.add(regalloc2::PReg::new(i, regalloc2::RegClass::Int));
|
||||||
|
}
|
||||||
|
set
|
||||||
|
} else {
|
||||||
|
regalloc2::PRegSet::default()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn num_vregs(&self) -> usize {
|
||||||
|
self.nodes.values.len()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn spillslot_size(&self, regclass: regalloc2::RegClass) -> usize {
|
||||||
|
match regclass {
|
||||||
|
regalloc2::RegClass::Int => 1,
|
||||||
|
regalloc2::RegClass::Float => unreachable!(),
|
||||||
|
regalloc2::RegClass::Vector => unreachable!(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
fn loop_depth(target: Nid, nodes: &mut Nodes) -> LoopDepth {
|
fn loop_depth(target: Nid, nodes: &mut Nodes) -> LoopDepth {
|
||||||
if nodes[target].loop_depth != 0 {
|
if nodes[target].loop_depth != 0 {
|
||||||
return nodes[target].loop_depth;
|
return nodes[target].loop_depth;
|
||||||
|
|
@ -2731,7 +2710,6 @@ mod tests {
|
||||||
const README: &str = include_str!("../README.md");
|
const README: &str = include_str!("../README.md");
|
||||||
|
|
||||||
fn generate(ident: &'static str, input: &'static str, output: &mut String) {
|
fn generate(ident: &'static str, input: &'static str, output: &mut String) {
|
||||||
_ = env_logger::builder().is_test(true).try_init();
|
|
||||||
let mut codegen =
|
let mut codegen =
|
||||||
super::Codegen { files: crate::test_parse_files(ident, input), ..Default::default() };
|
super::Codegen { files: crate::test_parse_files(ident, input), ..Default::default() };
|
||||||
|
|
||||||
|
|
@ -2756,7 +2734,7 @@ mod tests {
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
println!("{output}");
|
//println!("{output}");
|
||||||
|
|
||||||
crate::test_run_vm(&out, output);
|
crate::test_run_vm(&out, output);
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue