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feat: JIT (WIP)

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This commit is contained in:
imxyy_soope_
2025-06-22 17:17:33 +08:00
parent f679ff2ec9
commit e26789f3b7
6 changed files with 373 additions and 133 deletions
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20
src/engine/mod.rs
View File

@@ -1,10 +1,13 @@
use std::cell::OnceCell;
use std::rc::Rc;
use hashbrown::HashSet;
use inkwell::context::Context;
use priority_queue::PriorityQueue;
use crate::env::Env;
use crate::error::Result;
use crate::eval::jit::{JITContext, JITFunc};
use crate::eval::Evaluate;
use crate::ir::{Dep, Downgraded, Ir, SccNode};
use crate::ty::internal as i;
@@ -16,29 +19,36 @@ mod test;
type ThunkIdx = usize;
type EnvIdx = usize;
pub struct Engine {
pub struct Engine<'ctx: 'exec, 'exec> {
pub thunks: Box<[Ir]>,
pub func_offset: usize,
pub func_deps: Vec<HashSet<Dep>>,
jit: &'exec JITContext<'ctx>,
compiled: Box<[OnceCell<JITFunc<'ctx, 'exec>>]>,
tasks: PriorityQueue<CompileTask, usize>,
}
pub fn eval(downgraded: Downgraded) -> Result<Value> {
let ctx = Context::create();
let jit = JITContext::new(&ctx);
let mut engine = Engine::new(
downgraded.thunks,
downgraded.func_offset,
downgraded.func_deps,
&jit
);
engine.eval(downgraded.graph)
}
impl Engine {
pub fn new(thunks: Box<[Ir]>, func_offset: usize, func_deps: Vec<HashSet<Dep>>) -> Self {
impl<'ctx, 'exec> Engine<'ctx, 'exec> {
pub fn new(thunks: Box<[Ir]>, func_offset: usize, func_deps: Vec<HashSet<Dep>>, jit: &'exec JITContext<'ctx>) -> Self {
Self {
compiled: (0..thunks.len()).map(|_| OnceCell::new()).collect(),
tasks: PriorityQueue::new(),
thunks,
func_offset,
func_deps,
jit,
}
}
@@ -69,8 +79,8 @@ impl Engine {
}
pub fn eval_thunk(&mut self, idx: usize, env: &mut Env) -> Result<i::Value> {
let self_mut = unsafe { &mut *(self as *mut Self) };
self.thunks[idx].eval(self_mut, env)
let func = self.compiled[idx].get_or_init(|| self.jit.compile(&self.thunks[idx]));
Ok(unsafe { func(self as *const Engine, env as *const Env).into() })
}
pub fn eval_func_deps(&mut self, idx: usize, env: &mut Env) -> Result<()> {

7
src/env.rs
View File

@@ -25,7 +25,10 @@ impl Env {
}
}
pub fn with_new_cache<T>(&mut self, f: impl FnOnce(&mut Self) -> T) -> (T, HashMap<usize, Value>) {
pub fn with_new_cache<T>(
&mut self,
f: impl FnOnce(&mut Self) -> T,
) -> (T, HashMap<usize, Value>) {
self.cache.push(HashMap::new());
let ret = f(self);
(ret, self.cache.pop().unwrap())
@@ -76,7 +79,7 @@ impl Env {
self.args[self.args.len() - level - 1].clone()
}
pub fn lookup_with(&self, symbol: &EcoString) -> Option<Value> {
pub fn lookup_with(&self, symbol: &str) -> Option<Value> {
for with in self.with.iter().rev() {
if let Some(ret) = with.get(symbol) {
return Some(ret.clone());

269
src/eval/jit/compile.rs
View File

@@ -1,39 +1,66 @@
use std::{alloc::Layout, ffi::CStr};
use inkwell::values::{FunctionValue, StructValue};
use crate::ir::*;
use crate::ty::common as c;
use crate::ty::internal::Value;
use crate::{eval::jit::JITValue, ir::*};
use super::{JITContext, ValueTag};
pub trait JITCompile {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc>;
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc>;
}
impl JITCompile for Attrs {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for List {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for HasAttr {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for BinOp {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
use BinOpKind::*;
use ValueTag::*;
let lhs = self.lhs.compile(ctx, func);
let rhs = self.rhs.compile(ctx, func);
let lhs = self.lhs.compile(ctx, func, values);
let rhs = self.rhs.compile(ctx, func, values);
let lhs_tag = ctx.get_tag(lhs);
let rhs_tag = ctx.get_tag(rhs);
let tag = ctx
@@ -86,10 +113,7 @@ impl JITCompile for BinOp {
.build_int_add(ctx.get_int(lhs), ctx.get_int(rhs), "add")
.unwrap();
ctx.builder
.build_store(
res,
ctx.helpers.new_value(Int, val.into())
)
.build_store(res, ctx.helpers.new_value(Int, val.into()))
.unwrap();
ctx.builder.position_at_end(int_float);
let val = ctx
@@ -107,10 +131,7 @@ impl JITCompile for BinOp {
)
.unwrap();
ctx.builder
.build_store(
res,
ctx.helpers.new_value(Float, val.into())
)
.build_store(res, ctx.helpers.new_value(Float, val.into()))
.unwrap();
ctx.builder.position_at_end(float_int);
let val = ctx
@@ -128,10 +149,7 @@ impl JITCompile for BinOp {
)
.unwrap();
ctx.builder
.build_store(
res,
ctx.helpers.new_value(Float, val.into())
)
.build_store(res, ctx.helpers.new_value(Float, val.into()))
.unwrap();
ctx.builder.position_at_end(int_int);
let val = ctx
@@ -139,10 +157,7 @@ impl JITCompile for BinOp {
.build_float_add(ctx.get_float(lhs), ctx.get_float(rhs), "add")
.unwrap();
ctx.builder
.build_store(
res,
ctx.helpers.new_value(Float, val.into())
)
.build_store(res, ctx.helpers.new_value(Float, val.into()))
.unwrap();
ctx.builder.position_at_end(fallback);
}
@@ -165,10 +180,7 @@ impl JITCompile for BinOp {
.build_or(ctx.get_bool(lhs), ctx.get_bool(rhs), "or")
.unwrap();
ctx.builder
.build_store(
res,
ctx.helpers.new_value(Bool, val.into())
)
.build_store(res, ctx.helpers.new_value(Bool, val.into()))
.unwrap();
ctx.builder.position_at_end(fallback);
}
@@ -184,9 +196,14 @@ impl JITCompile for BinOp {
}
impl JITCompile for UnOp {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!();
let rhs = self.rhs.compile(ctx, func);
let rhs = self.rhs.compile(ctx, func, values);
let tag = ctx.get_tag(rhs);
let fallback = ctx.context.append_basic_block(func, "fallback");
let ret = ctx.context.append_basic_block(func, "fallback");
@@ -206,55 +223,143 @@ impl JITCompile for UnOp {
}
impl JITCompile for Select {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for If {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for LoadFunc {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, _: FunctionValue<'gc>) -> StructValue<'gc> {
ctx.helpers.new_value(ValueTag::Function, ctx.helpers.const_int(self.idx as i64).into())
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
_: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
ctx.helpers.new_value(
ValueTag::Function,
ctx.helpers.const_int(self.idx as i64).into(),
)
}
}
impl JITCompile for Call {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
todo!()
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
let args = ctx
.builder
.build_call(
ctx.helpers.alloc_array,
&[ctx.helpers.const_ptr_int(self.args.len()).into()],
"alloc_args",
)
.unwrap()
.try_as_basic_value()
.unwrap_left()
.into_pointer_value();
for (i, arg) in self.args.iter().enumerate() {
ctx.builder
.build_store(
unsafe {
args.const_in_bounds_gep(
ctx.helpers.value_type,
&[ctx.helpers.const_ptr_int(i)],
)
},
arg.compile(ctx, func, values),
)
.unwrap();
}
ctx.builder
.build_call(
ctx.helpers.call,
&[
self.func.compile(ctx, func, values).into(),
args.into(),
ctx.helpers.const_ptr_int(self.args.len()).into(),
func.get_first_param().unwrap().into(),
func.get_last_param().unwrap().into(),
],
"call",
)
.unwrap()
.try_as_basic_value()
.unwrap_left()
.try_into()
.unwrap()
}
}
impl JITCompile for Let {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
todo!()
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
unreachable!()
}
}
impl JITCompile for With {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for Assert {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for ConcatStrings {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for Const {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
use c::Const::*;
match self.val {
Bool(x) => ctx.helpers.new_bool(x),
@@ -266,37 +371,97 @@ impl JITCompile for Const {
}
impl JITCompile for String {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}
impl JITCompile for Var {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
todo!()
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
let env = func.get_nth_param(1).unwrap();
let ptr = self.sym.as_ptr();
let len = self.sym.len();
// values.push(Value::String(self.sym.clone()));
ctx.builder
.build_direct_call(
ctx.helpers.lookup,
&[
env.into(),
ctx.const_ptr(ptr as *const ()).into(),
ctx.helpers.const_ptr_int(len).into(),
],
"lookup",
)
.unwrap()
.try_as_basic_value()
.unwrap_left()
.try_into()
.unwrap()
}
}
impl JITCompile for Arg {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
todo!()
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
let env = func.get_last_param().unwrap();
let ret = ctx.builder.build_alloca(ctx.helpers.value_type, "alloca_ret").unwrap();
ctx.builder
.build_direct_call(
ctx.helpers.lookup_arg,
&[env.into(), ctx.helpers.const_ptr_int(self.level).into(), ret.into()],
"lookup_arg",
)
.unwrap();
ctx.builder.build_load(ctx.helpers.value_type,ret, "load_ret").unwrap().into_struct_value()
}
}
impl JITCompile for LetVar {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
todo!()
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
unreachable!()
}
}
impl JITCompile for Thunk {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, _: FunctionValue<'gc>) -> StructValue<'gc> {
ctx.helpers.new_value(ValueTag::Thunk, ctx.helpers.const_int(self.idx as i64).into())
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
_: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
ctx.helpers.new_value(
ValueTag::Thunk,
ctx.helpers.const_int(self.idx as i64).into(),
)
}
}
impl JITCompile for Path {
fn compile<'gc>(&self, ctx: &JITContext<'gc>, func: FunctionValue<'gc>) -> StructValue<'gc> {
fn compile<'gc>(
&self,
ctx: &JITContext<'gc>,
func: FunctionValue<'gc>,
values: &mut Vec<Value>,
) -> StructValue<'gc> {
todo!()
}
}

133
src/eval/jit/helpers.rs
View File

@@ -1,4 +1,7 @@
use std::alloc::Layout;
use std::ffi::CStr;
use std::ptr::NonNull;
use std::{slice, str};
use inkwell::AddressSpace;
use inkwell::context::Context;
@@ -33,39 +36,36 @@ pub struct Helpers<'ctx> {
pub eq: FunctionValue<'ctx>,
pub or: FunctionValue<'ctx>,
pub call: FunctionValue<'ctx>,
pub arg: FunctionValue<'ctx>,
pub lookup_let: FunctionValue<'ctx>,
pub lookup_arg: FunctionValue<'ctx>,
pub lookup: FunctionValue<'ctx>,
pub force: FunctionValue<'ctx>,
pub alloc_array: FunctionValue<'ctx>,
}
impl<'ctx> Helpers<'ctx> {
pub fn new(
context: &'ctx Context,
ctx: &'ctx Context,
module: &Module<'ctx>,
execution_engine: &ExecutionEngine<'ctx>,
) -> Self {
let int_type = context.i64_type();
let float_type = context.f64_type();
let bool_type = context.bool_type();
let ptr_int_type = context.ptr_sized_int_type(execution_engine.get_target_data(), None);
let ptr_type = context.ptr_type(AddressSpace::default());
let value_type = context.struct_type(&[int_type.into(), int_type.into(), int_type.into()], false);
let func_type = value_type.fn_type(&[ptr_type.into()], false);
let int_type = ctx.i64_type();
let float_type = ctx.f64_type();
let bool_type = ctx.bool_type();
let ptr_int_type = ctx.ptr_sized_int_type(execution_engine.get_target_data(), None);
let ptr_type = ctx.ptr_type(AddressSpace::default());
let value_type =
ctx.struct_type(&[int_type.into(), int_type.into(), int_type.into()], false);
let func_type = value_type.fn_type(&[ptr_type.into(), ptr_type.into()], false);
let new_thunk = module.add_function(
"new_thunk",
value_type.fn_type(&[ptr_type.into(), ptr_type.into()], false),
None,
);
let debug = module.add_function(
"debug",
context.void_type().fn_type(&[value_type.into()], false),
None,
);
let capture_env = module.add_function(
"capture_env",
context
ctx
.void_type()
.fn_type(&[value_type.into(), ptr_type.into()], false),
None,
@@ -106,6 +106,7 @@ impl<'ctx> Helpers<'ctx> {
&[
value_type.into(),
ptr_type.into(),
ptr_int_type.into(),
ptr_type.into(),
ptr_type.into(),
],
@@ -113,22 +114,25 @@ impl<'ctx> Helpers<'ctx> {
),
None,
);
let arg = module.add_function(
"arg",
value_type.fn_type(&[ptr_int_type.into(), ptr_type.into()], false),
let debug = module.add_function(
"debug",
ctx
.void_type()
.fn_type(&[ptr_type.into(), int_type.into()], false),
None,
);
let lookup_let = module.add_function(
"lookup_let",
value_type.fn_type(
&[ptr_int_type.into(), ptr_int_type.into(), ptr_type.into()],
false,
),
let lookup_arg = module.add_function(
"lookup_arg",
// value_type.fn_type(&[ptr_type.into(), int_type.into()], false),
ctx.void_type().fn_type(&[ptr_type.into(), int_type.into(), ptr_type.into()], false),
None,
);
let lookup = module.add_function(
"lookup",
value_type.fn_type(&[ptr_int_type.into(), ptr_type.into()], false),
value_type.fn_type(
&[ptr_int_type.into(), ptr_type.into(), ptr_int_type.into()],
false,
),
None,
);
let force = module.add_function(
@@ -139,6 +143,11 @@ impl<'ctx> Helpers<'ctx> {
),
None,
);
let alloc_array = module.add_function(
"alloc_array",
value_type.fn_type(&[ptr_int_type.into()], false),
None,
);
execution_engine.add_global_mapping(&new_thunk, helper_new_thunk as _);
execution_engine.add_global_mapping(&debug, helper_debug as _);
@@ -150,10 +159,10 @@ impl<'ctx> Helpers<'ctx> {
execution_engine.add_global_mapping(&eq, helper_eq as _);
execution_engine.add_global_mapping(&or, helper_or as _);
execution_engine.add_global_mapping(&call, helper_call as _);
execution_engine.add_global_mapping(&arg, helper_arg as _);
execution_engine.add_global_mapping(&lookup_let, helper_lookup_let as _);
execution_engine.add_global_mapping(&lookup_arg, helper_lookup_arg as _);
execution_engine.add_global_mapping(&lookup, helper_lookup as _);
execution_engine.add_global_mapping(&force, helper_force as _);
execution_engine.add_global_mapping(&alloc_array, helper_alloc_array as _);
Helpers {
int_type,
@@ -175,10 +184,11 @@ impl<'ctx> Helpers<'ctx> {
eq,
or,
call,
arg,
lookup_let,
lookup_arg,
lookup,
force,
alloc_array,
}
}
@@ -186,10 +196,14 @@ impl<'ctx> Helpers<'ctx> {
self.value_type.const_named_struct(&[
self.const_int(tag as i64).into(),
data,
self.int_type.const_zero().into()
self.int_type.const_zero().into(),
])
}
pub fn const_ptr_int(&self, int: usize) -> IntValue<'ctx> {
self.ptr_int_type.const_int(int as _, false)
}
pub fn const_int(&self, int: i64) -> IntValue<'ctx> {
self.int_type.const_int(int as _, false)
}
@@ -219,10 +233,6 @@ impl<'ctx> Helpers<'ctx> {
}
}
extern "C" fn helper_debug(value: JITValue) {
dbg!(value.tag);
}
extern "C" fn helper_capture_env(thunk: JITValue, env: *const Env) {
todo!()
}
@@ -329,28 +339,47 @@ extern "C" fn helper_or(lhs: JITValue, rhs: JITValue) -> JITValue {
extern "C" fn helper_call(
func: JITValue,
args: Box<[JITValue]>,
engine: NonNull<Engine>,
env: NonNull<Env>,
args: *mut JITValue,
len: usize,
mut engine: NonNull<Engine>,
mut env: NonNull<Env>,
) -> JITValue {
let func = Value::from(func);
let mut func = Value::from(func);
// TODO: Error Handling
let args = core::ptr::slice_from_raw_parts_mut(args, len);
let args = unsafe { Box::from_raw(args) };
func.call(
args.into_iter().map(Value::from).collect(),
unsafe { engine.as_mut() },
unsafe { env.as_mut() },
)
.unwrap();
todo!()
}
extern "C" fn helper_arg(idx: usize, env: *const Env) -> JITValue {
let env = unsafe { env.as_ref() }.unwrap();
let val: JITValue = env.lookup_arg(idx).clone().into();
extern "C" fn helper_debug(env: NonNull<Env>, level: u64) {
dbg!(env, level);
dbg!(unsafe { env.as_ref() }.lookup_arg(level as usize));
}
extern "C" fn helper_lookup_arg(env_ptr: NonNull<Env>, level: u64, ret: NonNull<JITValue>) {
dbg!(env_ptr, level);
let env_ref = unsafe { env_ptr.as_ref() };
let val: JITValue = env_ref.lookup_arg(level as usize).into();
unsafe { ret.write(val) }
}
extern "C" fn helper_lookup(env: NonNull<Env>, ptr: *const u8, len: usize) -> JITValue {
let env = unsafe { env.as_ref() };
// TODO: Error Handling
let val: JITValue = env
.lookup_with(unsafe { str::from_utf8_unchecked(slice::from_raw_parts(ptr, len)) })
.unwrap()
.clone()
.into();
val
}
extern "C" fn helper_lookup_let(level: usize, idx: usize, env: *const Env) -> JITValue {
todo!()
}
extern "C" fn helper_lookup(sym: usize, env: *const Env) -> JITValue {
todo!()
}
extern "C" fn helper_force(
thunk: JITValue,
vm: NonNull<Engine>,
@@ -365,3 +394,7 @@ extern "C" fn helper_force(
extern "C" fn helper_new_thunk(opcodes: *const ()) -> JITValue {
todo!()
}
unsafe extern "C" fn helper_alloc_array(len: usize) -> *mut u8 {
unsafe { std::alloc::alloc(Layout::array::<JITValue>(len).unwrap()) }
}

73
src/eval/jit/mod.rs
View File

@@ -7,8 +7,11 @@ use inkwell::builder::Builder;
use inkwell::context::Context;
use inkwell::execution_engine::ExecutionEngine;
use inkwell::module::Module;
use inkwell::values::{AnyValue, BasicMetadataValueEnum, FloatValue, IntValue, StructValue};
use inkwell::values::{
AnyValue, BasicMetadataValueEnum, FloatValue, IntValue, PointerValue, StructValue,
};
use crate::engine::Engine;
use crate::env::Env;
use crate::ir::Ir;
use crate::ty::internal::Value;
@@ -48,14 +51,14 @@ pub union JITValueData {
float: f64,
bool: bool,
ptr: *const (),
slice: Slice
slice: Slice,
}
#[repr(C)]
#[derive(Clone, Copy)]
pub struct Slice {
ptr: *const (),
len: usize
len: usize,
}
impl From<JITValue> for Value {
@@ -78,35 +81,39 @@ impl From<Value> for JITValue {
tag: ValueTag::Int,
data: JITValueData { int },
},
Value::List(list) => JITValue { tag: ValueTag::List, data: JITValueData { slice: Slice { ptr: list.as_ptr() as *const (), len: list.len() } } },
Value::List(list) => JITValue {
tag: ValueTag::List,
data: JITValueData {
slice: Slice {
ptr: list.as_ptr() as *const (),
len: list.len(),
},
},
},
Value::Func(idx) => JITValue {
tag: ValueTag::Function,
data: JITValueData {
int: idx as i64
},
data: JITValueData { int: idx as i64 },
},
Value::Thunk(idx) => JITValue {
tag: ValueTag::Thunk,
data: JITValueData {
int: idx as i64
},
data: JITValueData { int: idx as i64 },
},
_ => todo!(),
}
}
}
pub struct JITFunc<'ctx>(F, PhantomData<&'ctx mut ()>);
type F = unsafe extern "C" fn(*const Env) -> JITValue;
pub struct JITFunc<'ctx, 'exec>(F<'ctx, 'exec>, PhantomData<&'exec mut ()>);
type F<'ctx, 'exec> = unsafe extern "C" fn(*const Engine<'ctx, 'exec>, *const Env) -> JITValue;
impl From<F> for JITFunc<'_> {
fn from(value: F) -> Self {
impl<'ctx, 'exec> From<F<'ctx, 'exec>> for JITFunc<'ctx, 'exec> {
fn from(value: F<'ctx, 'exec>) -> Self {
Self(value, PhantomData)
}
}
impl Deref for JITFunc<'_> {
type Target = F;
impl<'ctx: 'exec, 'exec> Deref for JITFunc<'ctx, 'exec> {
type Target = F<'ctx, 'exec>;
fn deref(&self) -> &Self::Target {
&self.0
}
@@ -143,8 +150,28 @@ impl<'ctx> JITContext<'ctx> {
}
}
pub fn compile(&self, ir: Ir) -> JITFunc<'ctx> {
todo!()
pub fn compile<'exec>(&'exec self, ir: &Ir) -> JITFunc<'ctx, 'exec> {
let func = self
.module
.add_function("nixjit_func", self.helpers.func_type, None);
let entry = self.context.append_basic_block(func, "entry");
self.builder.position_at_end(entry);
// TODO:
let ret = ir.compile(self, func, &mut Vec::new());
self.builder.build_return(Some(&ret)).unwrap();
if func.verify(true) {
unsafe {
JITFunc(
self.execution_engine
.get_function(func.get_name().to_str().unwrap())
.unwrap()
.into_raw(),
PhantomData,
)
}
} else {
todo!()
}
}
pub fn get_float(&self, val: StructValue<'ctx>) -> FloatValue<'ctx> {
@@ -219,11 +246,13 @@ impl<'ctx> JITContext<'ctx> {
.into_int_value()
}
pub fn call(&self, args: &[BasicMetadataValueEnum<'ctx>]) -> StructValue<'ctx> {
pub fn const_ptr(&self, ptr: *const ()) -> PointerValue<'ctx> {
self.builder
.build_call(self.helpers.call, args, "call")
.build_int_to_ptr(
self.helpers.int_type.const_int(ptr as _, false),
self.helpers.ptr_type,
"ptrconv",
)
.unwrap()
.as_any_value_enum()
.into_struct_value()
}
}

4
src/ir/mod.rs
View File

@@ -90,9 +90,9 @@ macro_rules! ir {
}
impl JITCompile for Ir {
fn compile<'ctx>(&self, ctx: &JITContext<'ctx>, func: FunctionValue<'ctx>) -> StructValue<'ctx>{
fn compile<'ctx>(&self, ctx: &JITContext<'ctx>, func: FunctionValue<'ctx>, values: &mut Vec<Value>) -> StructValue<'ctx>{
match self {
$(Ir::$ty(ir) => ir.compile(ctx, func),)*
$(Ir::$ty(ir) => ir.compile(ctx, func, values),)*
}
}
}