nac3/nac3core/src/codegen/classes.rs

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use inkwell::{
IntPredicate,
types::{AnyTypeEnum, BasicTypeEnum, IntType, PointerType},
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values::{ArrayValue, BasicValueEnum, CallSiteValue, IntValue, PointerValue},
};
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use itertools::Either;
use crate::codegen::{
CodeGenContext,
CodeGenerator,
irrt::{call_ndarray_calc_size, call_ndarray_flatten_index, call_ndarray_flatten_index_const},
stmt::gen_for_callback,
};
#[cfg(not(debug_assertions))]
pub fn assert_is_list<'ctx>(_value: PointerValue<'ctx>, _llvm_usize: IntType<'ctx>) {}
#[cfg(debug_assertions)]
pub fn assert_is_list<'ctx>(value: PointerValue<'ctx>, llvm_usize: IntType<'ctx>) {
if let Err(msg) = ListValue::is_instance(value, llvm_usize) {
panic!("{msg}")
}
}
/// Proxy type for accessing a `list` value in LLVM.
#[derive(Copy, Clone)]
pub struct ListValue<'ctx>(PointerValue<'ctx>, Option<&'ctx str>);
impl<'ctx> ListValue<'ctx> {
/// Checks whether `value` is an instance of `list`, returning [Err] if `value` is not an
/// instance.
pub fn is_instance(
value: PointerValue<'ctx>,
llvm_usize: IntType<'ctx>,
) -> Result<(), String> {
let llvm_list_ty = value.get_type().get_element_type();
let AnyTypeEnum::StructType(llvm_list_ty) = llvm_list_ty else {
return Err(format!("Expected struct type for `list` type, got {llvm_list_ty}"))
};
if llvm_list_ty.count_fields() != 2 {
return Err(format!("Expected 2 fields in `list`, got {}", llvm_list_ty.count_fields()))
}
let list_size_ty = llvm_list_ty.get_field_type_at_index(0).unwrap();
let Ok(_) = PointerType::try_from(list_size_ty) else {
return Err(format!("Expected pointer type for `list.0`, got {list_size_ty}"))
};
let list_data_ty = llvm_list_ty.get_field_type_at_index(1).unwrap();
let Ok(list_data_ty) = IntType::try_from(list_data_ty) else {
return Err(format!("Expected int type for `list.1`, got {list_data_ty}"))
};
if list_data_ty.get_bit_width() != llvm_usize.get_bit_width() {
return Err(format!("Expected {}-bit int type for `list.1`, got {}-bit int",
llvm_usize.get_bit_width(),
list_data_ty.get_bit_width()))
}
Ok(())
}
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/// Creates an [`ListValue`] from a [`PointerValue`].
#[must_use]
pub fn from_ptr_val(ptr: PointerValue<'ctx>, llvm_usize: IntType<'ctx>, name: Option<&'ctx str>) -> Self {
assert_is_list(ptr, llvm_usize);
ListValue(ptr, name)
}
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/// Returns the underlying [`PointerValue`] pointing to the `list` instance.
#[must_use]
pub fn get_ptr(&self) -> PointerValue<'ctx> {
self.0
}
/// Returns the double-indirection pointer to the `data` array, as if by calling `getelementptr`
/// on the field.
fn get_data_pptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.data.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.get_ptr(),
&[llvm_i32.const_zero(), llvm_i32.const_zero()],
var_name.as_str(),
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).unwrap()
}
}
/// Returns the pointer to the field storing the size of this `list`.
fn get_size_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.size.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.0,
&[llvm_i32.const_zero(), llvm_i32.const_int(1, true)],
var_name.as_str(),
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).unwrap()
}
}
/// Stores the array of data elements `data` into this instance.
fn store_data(&self, ctx: &CodeGenContext<'ctx, '_>, data: PointerValue<'ctx>) {
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ctx.builder.build_store(self.get_data_pptr(ctx), data).unwrap();
}
/// Convenience method for creating a new array storing data elements with the given element
/// type `elem_ty` and `size`.
///
/// If `size` is [None], the size stored in the field of this instance is used instead.
pub fn create_data(
&self,
ctx: &CodeGenContext<'ctx, '_>,
elem_ty: BasicTypeEnum<'ctx>,
size: Option<IntValue<'ctx>>,
) {
let size = size.unwrap_or_else(|| self.load_size(ctx, None));
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self.store_data(ctx, ctx.builder.build_array_alloca(elem_ty, size, "").unwrap());
}
/// Returns the double-indirection pointer to the `data` array, as if by calling `getelementptr`
/// on the field.
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#[must_use]
pub fn get_data(&self) -> ListDataProxy<'ctx> {
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ListDataProxy(*self)
}
/// Stores the `size` of this `list` into this instance.
pub fn store_size(
&self,
ctx: &CodeGenContext<'ctx, '_>,
generator: &dyn CodeGenerator,
size: IntValue<'ctx>,
) {
debug_assert_eq!(size.get_type(), generator.get_size_type(ctx.ctx));
let psize = self.get_size_ptr(ctx);
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ctx.builder.build_store(psize, size).unwrap();
}
/// Returns the size of this `list` as a value.
pub fn load_size(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
let psize = self.get_size_ptr(ctx);
let var_name = name
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.map(ToString::to_string)
.or_else(|| self.1.map(|v| format!("{v}.size")))
.unwrap_or_default();
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ctx.builder.build_load(psize, var_name.as_str())
.map(BasicValueEnum::into_int_value)
.unwrap()
}
}
impl<'ctx> From<ListValue<'ctx>> for PointerValue<'ctx> {
fn from(value: ListValue<'ctx>) -> Self {
value.get_ptr()
}
}
/// Proxy type for accessing the `data` array of an `list` instance in LLVM.
#[derive(Copy, Clone)]
pub struct ListDataProxy<'ctx>(ListValue<'ctx>);
impl<'ctx> ListDataProxy<'ctx> {
/// Returns the single-indirection pointer to the array.
pub fn get_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let var_name = self.0.1.map(|v| format!("{v}.data")).unwrap_or_default();
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ctx.builder.build_load(self.0.get_data_pptr(ctx), var_name.as_str())
.map(BasicValueEnum::into_pointer_value)
.unwrap()
}
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/// # Safety
///
/// This function should be called with a valid index.
pub unsafe fn ptr_offset_unchecked(
&self,
ctx: &CodeGenContext<'ctx, '_>,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let var_name = name
.map(|v| format!("{v}.addr"))
.unwrap_or_default();
ctx.builder.build_in_bounds_gep(
self.get_ptr(ctx),
&[idx],
var_name.as_str(),
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).unwrap()
}
/// Returns the pointer to the data at the `idx`-th index.
pub fn ptr_offset(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
debug_assert_eq!(idx.get_type(), generator.get_size_type(ctx.ctx));
let in_range = ctx.builder.build_int_compare(
IntPredicate::ULT,
idx,
self.0.load_size(ctx, None),
""
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).unwrap();
ctx.make_assert(
generator,
in_range,
"0:IndexError",
"list index out of range",
[None, None, None],
ctx.current_loc,
);
unsafe {
self.ptr_offset_unchecked(ctx, idx, name)
}
}
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/// # Safety
///
/// This function should be called with a valid index.
pub unsafe fn get_unchecked(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_offset_unchecked(ctx, idx, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
/// Returns the data at the `idx`-th flattened index.
pub fn get(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_offset(ctx, generator, idx, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
}
#[cfg(not(debug_assertions))]
pub fn assert_is_range(_value: PointerValue) {}
#[cfg(debug_assertions)]
pub fn assert_is_range(value: PointerValue) {
if let Err(msg) = RangeValue::is_instance(value) {
panic!("{msg}")
}
}
/// Proxy type for accessing a `range` value in LLVM.
#[derive(Copy, Clone)]
pub struct RangeValue<'ctx>(PointerValue<'ctx>, Option<&'ctx str>);
impl<'ctx> RangeValue<'ctx> {
/// Checks whether `value` is an instance of `range`, returning [Err] if `value` is not an instance.
pub fn is_instance(value: PointerValue<'ctx>) -> Result<(), String> {
let llvm_range_ty = value.get_type().get_element_type();
let AnyTypeEnum::ArrayType(llvm_range_ty) = llvm_range_ty else {
return Err(format!("Expected array type for `range` type, got {llvm_range_ty}"))
};
if llvm_range_ty.len() != 3 {
return Err(format!("Expected 3 elements for `range` type, got {}", llvm_range_ty.len()))
}
let llvm_range_elem_ty = llvm_range_ty.get_element_type();
let Ok(llvm_range_elem_ty) = IntType::try_from(llvm_range_elem_ty) else {
return Err(format!("Expected int type for `range` element type, got {llvm_range_elem_ty}"))
};
if llvm_range_elem_ty.get_bit_width() != 32 {
return Err(format!("Expected 32-bit int type for `range` element type, got {}",
llvm_range_elem_ty.get_bit_width()))
}
Ok(())
}
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/// Creates an [`RangeValue`] from a [`PointerValue`].
#[must_use]
pub fn from_ptr_val(ptr: PointerValue<'ctx>, name: Option<&'ctx str>) -> Self {
assert_is_range(ptr);
RangeValue(ptr, name)
}
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/// Returns the underlying [`PointerValue`] pointing to the `range` instance.
#[must_use]
pub fn get_ptr(&self) -> PointerValue<'ctx> {
self.0
}
fn get_start_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.start.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.0,
&[llvm_i32.const_zero(), llvm_i32.const_int(0, false)],
var_name.as_str(),
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).unwrap()
}
}
fn get_end_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.end.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.0,
&[llvm_i32.const_zero(), llvm_i32.const_int(1, false)],
var_name.as_str(),
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).unwrap()
}
}
fn get_step_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.step.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.0,
&[llvm_i32.const_zero(), llvm_i32.const_int(2, false)],
var_name.as_str(),
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).unwrap()
}
}
/// Stores the `start` value into this instance.
pub fn store_start(
&self,
ctx: &CodeGenContext<'ctx, '_>,
start: IntValue<'ctx>,
) {
debug_assert_eq!(start.get_type().get_bit_width(), 32);
let pstart = self.get_start_ptr(ctx);
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ctx.builder.build_store(pstart, start).unwrap();
}
/// Returns the `start` value of this `range`.
pub fn load_start(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
let pstart = self.get_start_ptr(ctx);
let var_name = name
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.map(ToString::to_string)
.or_else(|| self.1.map(|v| format!("{v}.start")))
.unwrap_or_default();
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ctx.builder.build_load(pstart, var_name.as_str())
.map(BasicValueEnum::into_int_value)
.unwrap()
}
/// Stores the `end` value into this instance.
pub fn store_end(
&self,
ctx: &CodeGenContext<'ctx, '_>,
end: IntValue<'ctx>,
) {
debug_assert_eq!(end.get_type().get_bit_width(), 32);
let pend = self.get_start_ptr(ctx);
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ctx.builder.build_store(pend, end).unwrap();
}
/// Returns the `end` value of this `range`.
pub fn load_end(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
let pend = self.get_end_ptr(ctx);
let var_name = name
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.map(ToString::to_string)
.or_else(|| self.1.map(|v| format!("{v}.end")))
.unwrap_or_default();
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ctx.builder.build_load(pend, var_name.as_str())
.map(BasicValueEnum::into_int_value)
.unwrap()
}
/// Stores the `step` value into this instance.
pub fn store_step(
&self,
ctx: &CodeGenContext<'ctx, '_>,
step: IntValue<'ctx>,
) {
debug_assert_eq!(step.get_type().get_bit_width(), 32);
let pstep = self.get_start_ptr(ctx);
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ctx.builder.build_store(pstep, step).unwrap();
}
/// Returns the `step` value of this `range`.
pub fn load_step(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
let pstep = self.get_step_ptr(ctx);
let var_name = name
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.map(ToString::to_string)
.or_else(|| self.1.map(|v| format!("{v}.step")))
.unwrap_or_default();
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ctx.builder.build_load(pstep, var_name.as_str())
.map(BasicValueEnum::into_int_value)
.unwrap()
}
}
impl<'ctx> From<RangeValue<'ctx>> for PointerValue<'ctx> {
fn from(value: RangeValue<'ctx>) -> Self {
value.get_ptr()
}
}
#[cfg(not(debug_assertions))]
pub fn assert_is_ndarray<'ctx>(_value: PointerValue<'ctx>, _llvm_usize: IntType<'ctx>) {}
#[cfg(debug_assertions)]
pub fn assert_is_ndarray<'ctx>(value: PointerValue<'ctx>, llvm_usize: IntType<'ctx>) {
if let Err(msg) = NDArrayValue::is_instance(value, llvm_usize) {
panic!("{msg}")
}
}
/// Proxy type for accessing an `NDArray` value in LLVM.
#[derive(Copy, Clone)]
pub struct NDArrayValue<'ctx>(PointerValue<'ctx>, Option<&'ctx str>);
impl<'ctx> NDArrayValue<'ctx> {
/// Checks whether `value` is an instance of `NDArray`, returning [Err] if `value` is not an
/// instance.
pub fn is_instance(
value: PointerValue<'ctx>,
llvm_usize: IntType<'ctx>,
) -> Result<(), String> {
let llvm_ndarray_ty = value.get_type().get_element_type();
let AnyTypeEnum::StructType(llvm_ndarray_ty) = llvm_ndarray_ty else {
return Err(format!("Expected struct type for `NDArray` type, got {llvm_ndarray_ty}"))
};
if llvm_ndarray_ty.count_fields() != 3 {
return Err(format!("Expected 3 fields in `NDArray`, got {}", llvm_ndarray_ty.count_fields()))
}
let ndarray_ndims_ty = llvm_ndarray_ty.get_field_type_at_index(0).unwrap();
let Ok(ndarray_ndims_ty) = IntType::try_from(ndarray_ndims_ty) else {
return Err(format!("Expected int type for `ndarray.0`, got {ndarray_ndims_ty}"))
};
if ndarray_ndims_ty.get_bit_width() != llvm_usize.get_bit_width() {
return Err(format!("Expected {}-bit int type for `ndarray.0`, got {}-bit int",
llvm_usize.get_bit_width(),
ndarray_ndims_ty.get_bit_width()))
}
let ndarray_dims_ty = llvm_ndarray_ty.get_field_type_at_index(1).unwrap();
let Ok(ndarray_pdims) = PointerType::try_from(ndarray_dims_ty) else {
return Err(format!("Expected pointer type for `ndarray.1`, got {ndarray_dims_ty}"))
};
let ndarray_dims = ndarray_pdims.get_element_type();
let Ok(ndarray_dims) = IntType::try_from(ndarray_dims) else {
return Err(format!("Expected pointer-to-int type for `ndarray.1`, got pointer-to-{ndarray_dims}"))
};
if ndarray_dims.get_bit_width() != llvm_usize.get_bit_width() {
return Err(format!("Expected pointer-to-{}-bit int type for `ndarray.1`, got pointer-to-{}-bit int",
llvm_usize.get_bit_width(),
ndarray_dims.get_bit_width()))
}
let ndarray_data_ty = llvm_ndarray_ty.get_field_type_at_index(2).unwrap();
let Ok(_) = PointerType::try_from(ndarray_data_ty) else {
return Err(format!("Expected pointer type for `ndarray.2`, got {ndarray_data_ty}"))
};
Ok(())
}
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/// Creates an [`NDArrayValue`] from a [`PointerValue`].
#[must_use]
pub fn from_ptr_val(
ptr: PointerValue<'ctx>,
llvm_usize: IntType<'ctx>,
name: Option<&'ctx str>,
) -> Self {
assert_is_ndarray(ptr, llvm_usize);
NDArrayValue(ptr, name)
}
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/// Returns the underlying [`PointerValue`] pointing to the `NDArray` instance.
#[must_use]
pub fn get_ptr(&self) -> PointerValue<'ctx> {
self.0
}
/// Returns the pointer to the field storing the number of dimensions of this `NDArray`.
fn get_ndims(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.ndims.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.0,
&[llvm_i32.const_zero(), llvm_i32.const_zero()],
var_name.as_str(),
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).unwrap()
}
}
/// Stores the number of dimensions `ndims` into this instance.
pub fn store_ndims(
&self,
ctx: &CodeGenContext<'ctx, '_>,
generator: &dyn CodeGenerator,
ndims: IntValue<'ctx>,
) {
debug_assert_eq!(ndims.get_type(), generator.get_size_type(ctx.ctx));
let pndims = self.get_ndims(ctx);
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ctx.builder.build_store(pndims, ndims).unwrap();
}
/// Returns the number of dimensions of this `NDArray` as a value.
pub fn load_ndims(&self, ctx: &CodeGenContext<'ctx, '_>) -> IntValue<'ctx> {
let pndims = self.get_ndims(ctx);
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ctx.builder.build_load(pndims, "")
.map(BasicValueEnum::into_int_value)
.unwrap()
}
/// Returns the double-indirection pointer to the `dims` array, as if by calling `getelementptr`
/// on the field.
fn get_dims_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.dims.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.get_ptr(),
&[llvm_i32.const_zero(), llvm_i32.const_int(1, true)],
var_name.as_str(),
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).unwrap()
}
}
/// Stores the array of dimension sizes `dims` into this instance.
fn store_dims(&self, ctx: &CodeGenContext<'ctx, '_>, dims: PointerValue<'ctx>) {
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ctx.builder.build_store(self.get_dims_ptr(ctx), dims).unwrap();
}
/// Convenience method for creating a new array storing dimension sizes with the given `size`.
pub fn create_dims(
&self,
ctx: &CodeGenContext<'ctx, '_>,
llvm_usize: IntType<'ctx>,
size: IntValue<'ctx>,
) {
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self.store_dims(ctx, ctx.builder.build_array_alloca(llvm_usize, size, "").unwrap());
}
/// Returns a proxy object to the field storing the size of each dimension of this `NDArray`.
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#[must_use]
pub fn get_dims(&self) -> NDArrayDimsProxy<'ctx> {
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NDArrayDimsProxy(*self)
}
/// Returns the double-indirection pointer to the `data` array, as if by calling `getelementptr`
/// on the field.
fn get_data_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let llvm_i32 = ctx.ctx.i32_type();
let var_name = self.1.map(|v| format!("{v}.data.addr")).unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.get_ptr(),
&[llvm_i32.const_zero(), llvm_i32.const_int(2, true)],
var_name.as_str(),
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).unwrap()
}
}
/// Stores the array of data elements `data` into this instance.
fn store_data(&self, ctx: &CodeGenContext<'ctx, '_>, data: PointerValue<'ctx>) {
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ctx.builder.build_store(self.get_data_ptr(ctx), data).unwrap();
}
/// Convenience method for creating a new array storing data elements with the given element
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/// type `elem_ty` and `size`.
pub fn create_data(
&self,
ctx: &CodeGenContext<'ctx, '_>,
elem_ty: BasicTypeEnum<'ctx>,
size: IntValue<'ctx>,
) {
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self.store_data(ctx, ctx.builder.build_array_alloca(elem_ty, size, "").unwrap());
}
/// Returns a proxy object to the field storing the data of this `NDArray`.
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#[must_use]
pub fn get_data(&self) -> NDArrayDataProxy<'ctx> {
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NDArrayDataProxy(*self)
}
}
impl<'ctx> From<NDArrayValue<'ctx>> for PointerValue<'ctx> {
fn from(value: NDArrayValue<'ctx>) -> Self {
value.get_ptr()
}
}
/// Proxy type for accessing the `dims` array of an `NDArray` instance in LLVM.
#[derive(Copy, Clone)]
pub struct NDArrayDimsProxy<'ctx>(NDArrayValue<'ctx>);
impl<'ctx> NDArrayDimsProxy<'ctx> {
/// Returns the single-indirection pointer to the array.
pub fn get_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let var_name = self.0.1.map(|v| format!("{v}.dims")).unwrap_or_default();
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ctx.builder.build_load(self.0.get_dims_ptr(ctx), var_name.as_str())
.map(BasicValueEnum::into_pointer_value)
.unwrap()
}
/// Returns the pointer to the size of the `idx`-th dimension.
pub fn ptr_offset(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let in_range = ctx.builder.build_int_compare(
IntPredicate::ULT,
idx,
self.0.load_ndims(ctx),
""
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).unwrap();
ctx.make_assert(
generator,
in_range,
"0:IndexError",
"index {0} is out of bounds for axis 0 with size {1}",
[Some(idx), Some(self.0.load_ndims(ctx)), None],
ctx.current_loc,
);
let var_name = name
.map(|v| format!("{v}.addr"))
.unwrap_or_default();
unsafe {
ctx.builder.build_in_bounds_gep(
self.get_ptr(ctx),
&[idx],
var_name.as_str(),
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).unwrap()
}
}
/// Returns the size of the `idx`-th dimension.
pub fn get(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> IntValue<'ctx> {
let ptr = self.ptr_offset(ctx, generator, idx, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default())
.map(BasicValueEnum::into_int_value)
.unwrap()
}
}
/// Proxy type for accessing the `data` array of an `NDArray` instance in LLVM.
#[derive(Copy, Clone)]
pub struct NDArrayDataProxy<'ctx>(NDArrayValue<'ctx>);
impl<'ctx> NDArrayDataProxy<'ctx> {
/// Returns the single-indirection pointer to the array.
pub fn get_ptr(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
let var_name = self.0.1.map(|v| format!("{v}.data")).unwrap_or_default();
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ctx.builder.build_load(self.0.get_data_ptr(ctx), var_name.as_str())
.map(BasicValueEnum::into_pointer_value)
.unwrap()
}
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/// # Safety
///
/// This function should be called with a valid index.
pub unsafe fn ptr_to_data_flattened_unchecked(
&self,
ctx: &CodeGenContext<'ctx, '_>,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
ctx.builder.build_in_bounds_gep(
self.get_ptr(ctx),
&[idx],
name.unwrap_or_default(),
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).unwrap()
}
/// Returns the pointer to the data at the `idx`-th flattened index.
pub fn ptr_to_data_flattened(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let ndims = self.0.load_ndims(ctx);
let dims = self.0.get_dims().get_ptr(ctx);
let data_sz = call_ndarray_calc_size(generator, ctx, ndims, dims);
let in_range = ctx.builder.build_int_compare(
IntPredicate::ULT,
idx,
data_sz,
""
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).unwrap();
ctx.make_assert(
generator,
in_range,
"0:IndexError",
"index {0} is out of bounds with size {1}",
[Some(idx), Some(self.0.load_ndims(ctx)), None],
ctx.current_loc,
);
unsafe {
self.ptr_to_data_flattened_unchecked(ctx, idx, name)
}
}
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/// # Safety
///
/// This function should be called with a valid index.
pub unsafe fn get_flattened_unchecked(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_to_data_flattened_unchecked(ctx, idx, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
/// Returns the data at the `idx`-th flattened index.
pub fn get_flattened(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
idx: IntValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_to_data_flattened(ctx, generator, idx, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
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/// # Safety
///
/// This function should be called with valid indices.
pub unsafe fn ptr_offset_unchecked(
&self,
ctx: &CodeGenContext<'ctx, '_>,
generator: &dyn CodeGenerator,
indices: ListValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let indices_elem_ty = indices.get_data().get_ptr(ctx).get_type().get_element_type();
let Ok(indices_elem_ty) = IntType::try_from(indices_elem_ty) else {
panic!("Expected list[int32] but got {indices_elem_ty}")
};
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assert_eq!(indices_elem_ty.get_bit_width(), 32, "Expected list[int32] but got {indices_elem_ty}");
let index = call_ndarray_flatten_index(
generator,
ctx,
self.0,
indices,
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);
unsafe {
ctx.builder.build_in_bounds_gep(
self.get_ptr(ctx),
&[index],
name.unwrap_or_default(),
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).unwrap()
}
}
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/// # Safety
///
/// This function should be called with valid indices.
pub unsafe fn ptr_offset_unchecked_const(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
indices: ArrayValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let index = call_ndarray_flatten_index_const(
generator,
ctx,
self.0,
indices,
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);
unsafe {
ctx.builder.build_in_bounds_gep(
self.get_ptr(ctx),
&[index],
name.unwrap_or_default(),
)
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}.unwrap()
}
/// Returns the pointer to the data at the index specified by `indices`.
pub fn ptr_offset_const(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
indices: ArrayValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let llvm_usize = generator.get_size_type(ctx.ctx);
let indices_elem_ty = indices.get_type().get_element_type();
let Ok(indices_elem_ty) = IntType::try_from(indices_elem_ty) else {
panic!("Expected [int32] but got [{indices_elem_ty}]")
};
assert_eq!(indices_elem_ty.get_bit_width(), 32, "Expected [int32] but got [{indices_elem_ty}]");
let nidx_leq_ndims = ctx.builder.build_int_compare(
IntPredicate::SLE,
llvm_usize.const_int(indices.get_type().len() as u64, false),
self.0.load_ndims(ctx),
""
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).unwrap();
ctx.make_assert(
generator,
nidx_leq_ndims,
"0:IndexError",
"invalid index to scalar variable",
[None, None, None],
ctx.current_loc,
);
for idx in 0..indices.get_type().len() {
let i = llvm_usize.const_int(idx as u64, false);
let dim_idx = ctx.builder
.build_extract_value(indices, idx, "")
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.map(BasicValueEnum::into_int_value)
.map(|v| ctx.builder.build_int_z_extend_or_bit_cast(v, llvm_usize, "").unwrap())
.unwrap();
let dim_sz = self.0.get_dims().get(ctx, generator, i, None);
let dim_lt = ctx.builder.build_int_compare(
IntPredicate::SLT,
dim_idx,
dim_sz,
""
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).unwrap();
ctx.make_assert(
generator,
dim_lt,
"0:IndexError",
"index {0} is out of bounds for axis 0 with size {1}",
[Some(dim_idx), Some(dim_sz), None],
ctx.current_loc,
);
}
unsafe {
self.ptr_offset_unchecked_const(ctx, generator, indices, name)
}
}
/// Returns the pointer to the data at the index specified by `indices`.
pub fn ptr_offset(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
indices: ListValue<'ctx>,
name: Option<&str>,
) -> PointerValue<'ctx> {
let llvm_usize = generator.get_size_type(ctx.ctx);
let nidx_leq_ndims = ctx.builder.build_int_compare(
IntPredicate::SLE,
indices.load_size(ctx, None),
self.0.load_ndims(ctx),
""
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).unwrap();
ctx.make_assert(
generator,
nidx_leq_ndims,
"0:IndexError",
"invalid index to scalar variable",
[None, None, None],
ctx.current_loc,
);
gen_for_callback(
generator,
ctx,
|generator, ctx| {
let i = generator.gen_var_alloc(ctx, llvm_usize.into(), None)?;
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ctx.builder.build_store(i, llvm_usize.const_zero()).unwrap();
Ok(i)
},
|_, ctx, i_addr| {
let indices_len = indices.load_size(ctx, None);
let ndarray_len = self.0.load_ndims(ctx);
let min_fn_name = format!("llvm.umin.i{}", llvm_usize.get_bit_width());
let min_fn = ctx.module.get_function(min_fn_name.as_str()).unwrap_or_else(|| {
let fn_type = llvm_usize.fn_type(
&[llvm_usize.into(), llvm_usize.into()],
false
);
ctx.module.add_function(min_fn_name.as_str(), fn_type, None)
});
let len = ctx
.builder
.build_call(min_fn, &[indices_len.into(), ndarray_len.into()], "")
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.map(CallSiteValue::try_as_basic_value)
.map(|v| v.map_left(BasicValueEnum::into_int_value))
.map(Either::unwrap_left)
.unwrap();
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let i = ctx.builder.build_load(i_addr, "")
.map(BasicValueEnum::into_int_value)
.unwrap();
Ok(ctx.builder.build_int_compare(IntPredicate::SLT, i, len, "").unwrap())
},
|generator, ctx, i_addr| {
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let i = ctx.builder.build_load(i_addr, "")
.map(BasicValueEnum::into_int_value)
.unwrap();
let (dim_idx, dim_sz) = unsafe {
(
indices.get_data().get_unchecked(ctx, i, None).into_int_value(),
self.0.get_dims().get(ctx, generator, i, None),
)
};
let dim_lt = ctx.builder.build_int_compare(
IntPredicate::SLT,
dim_idx,
dim_sz,
""
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).unwrap();
ctx.make_assert(
generator,
dim_lt,
"0:IndexError",
"index {0} is out of bounds for axis 0 with size {1}",
[Some(dim_idx), Some(dim_sz), None],
ctx.current_loc,
);
Ok(())
},
|_, ctx, i_addr| {
let i = ctx.builder
.build_load(i_addr, "")
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.map(BasicValueEnum::into_int_value)
.unwrap();
let i = ctx.builder.build_int_add(i, llvm_usize.const_int(1, true), "").unwrap();
ctx.builder.build_store(i_addr, i).unwrap();
Ok(())
},
).unwrap();
unsafe {
self.ptr_offset_unchecked(ctx, generator, indices, name)
}
}
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/// # Safety
///
/// This function should be called with valid indices.
pub unsafe fn get_unsafe_const(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
indices: ArrayValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_offset_unchecked_const(ctx, generator, indices, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
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/// # Safety
///
/// This function should be called with valid indices.
pub unsafe fn get_unsafe(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &dyn CodeGenerator,
indices: ListValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_offset_unchecked(ctx, generator, indices, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
/// Returns the data at the index specified by `indices`.
pub fn get_const(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
indices: ArrayValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_offset_const(ctx, generator, indices, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
/// Returns the data at the index specified by `indices`.
pub fn get(
&self,
ctx: &mut CodeGenContext<'ctx, '_>,
generator: &mut dyn CodeGenerator,
indices: ListValue<'ctx>,
name: Option<&str>,
) -> BasicValueEnum<'ctx> {
let ptr = self.ptr_offset(ctx, generator, indices, name);
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ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
}
}