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Merge remote-tracking branch 'origin/trunk' into unit-types

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This commit is contained in:
Folkert 2020-03-20 01:02:13 +01:00
commit 14979ceb41
4 changed files with 196 additions and 132 deletions
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172
compiler/gen/src/llvm/build.rs
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@ -3,13 +3,13 @@ use bumpalo::Bump;
use inkwell::builder::Builder;
use inkwell::context::Context;
use inkwell::module::{Linkage, Module};
use inkwell::types::{BasicTypeEnum, StructType};
use inkwell::types::{BasicTypeEnum, IntType, StructType};
use inkwell::values::BasicValueEnum::{self, *};
use inkwell::values::{FunctionValue, IntValue, PointerValue, StructValue};
use inkwell::{AddressSpace, FloatPredicate, IntPredicate};
use crate::llvm::convert::{
basic_type_from_layout, collection_wrapper, get_array_type, get_fn_type,
basic_type_from_layout, collection_wrapper, get_array_type, get_fn_type, ptr_int,
};
use roc_collections::all::ImMap;
use roc_module::symbol::{Interns, Symbol};
@ -32,7 +32,13 @@ pub struct Env<'a, 'ctx, 'env> {
pub builder: &'env Builder<'ctx>,
pub module: &'ctx Module<'ctx>,
pub interns: Interns,
pub pointer_bytes: u32,
pub ptr_bytes: u32,
}
impl<'a, 'ctx, 'env> Env<'a, 'ctx, 'env> {
pub fn ptr_int(&self) -> IntType<'ctx> {
ptr_int(self.context, self.ptr_bytes)
}
}
#[allow(clippy::cognitive_complexity)]
@ -76,7 +82,8 @@ pub fn build_expr<'a, 'ctx, 'env>(
ret_layout,
cond_layout,
} => {
let ret_type = basic_type_from_layout(env.arena, env.context, &ret_layout);
let ret_type =
basic_type_from_layout(env.arena, env.context, &ret_layout, env.ptr_bytes);
let switch_args = SwitchArgs {
cond_layout: cond_layout.clone(),
cond_expr: cond,
@ -93,7 +100,7 @@ pub fn build_expr<'a, 'ctx, 'env>(
for (symbol, layout, expr) in stores.iter() {
let val = build_expr(env, &scope, parent, &expr, procs);
let expr_bt = basic_type_from_layout(env.arena, context, &layout);
let expr_bt = basic_type_from_layout(env.arena, context, &layout, env.ptr_bytes);
let alloca = create_entry_block_alloca(
env,
parent,
@ -146,14 +153,14 @@ pub fn build_expr<'a, 'ctx, 'env>(
build_basic_phi2(env, parent, comparison, then_val, else_val, ret_type)
}
_ => {
let mut arg_vals: Vec<BasicValueEnum> =
let mut arg_tuples: Vec<(BasicValueEnum, &'a Layout<'a>)> =
Vec::with_capacity_in(args.len(), env.arena);
for (arg, _layout) in args.iter() {
arg_vals.push(build_expr(env, scope, parent, arg, procs));
for (arg, layout) in args.iter() {
arg_tuples.push((build_expr(env, scope, parent, arg, procs), layout));
}
call_with_args(*symbol, arg_vals.into_bump_slice(), env)
call_with_args(*symbol, arg_tuples.into_bump_slice(), env)
}
},
FunctionPointer(symbol) => {
@ -189,7 +196,6 @@ pub fn build_expr<'a, 'ctx, 'env>(
.left()
.unwrap_or_else(|| panic!("LLVM error: Invalid call by pointer."))
}
Load(symbol) => match scope.get(symbol) {
Some((_, ptr)) => env
.builder
@ -233,13 +239,13 @@ pub fn build_expr<'a, 'ctx, 'env>(
}
Array { elem_layout, elems } => {
let ctx = env.context;
let elem_type = basic_type_from_layout(env.arena, ctx, elem_layout);
let elem_type = basic_type_from_layout(env.arena, ctx, elem_layout, env.ptr_bytes);
let builder = env.builder;
if elems.is_empty() {
let array_type = get_array_type(&elem_type, 0);
let ptr_type = array_type.ptr_type(AddressSpace::Generic);
let struct_type = collection_wrapper(ctx, ptr_type);
let struct_type = collection_wrapper(ctx, ptr_type, env.ptr_bytes);
// The first field in the struct should be the pointer.
let struct_val = builder
@ -254,11 +260,12 @@ pub fn build_expr<'a, 'ctx, 'env>(
BasicValueEnum::StructValue(struct_val.into_struct_value())
} else {
let len_u64 = elems.len() as u64;
let elem_bytes = elem_layout.stack_size(env.pointer_bytes) as u64;
let elem_bytes = elem_layout.stack_size(env.ptr_bytes) as u64;
let ptr = {
let bytes_len = elem_bytes * len_u64;
let len = ctx.i32_type().const_int(bytes_len, false);
let len_type = env.ptr_int();
let len = len_type.const_int(bytes_len, false);
env.builder
.build_array_malloc(elem_type, len, "create_list_ptr")
@ -276,8 +283,8 @@ pub fn build_expr<'a, 'ctx, 'env>(
}
let ptr_val = BasicValueEnum::PointerValue(ptr);
let struct_type = collection_wrapper(ctx, ptr.get_type());
let len = BasicValueEnum::IntValue(ctx.i32_type().const_int(len_u64, false));
let struct_type = collection_wrapper(ctx, ptr.get_type(), env.ptr_bytes);
let len = BasicValueEnum::IntValue(env.ptr_int().const_int(len_u64, false));
let mut struct_val;
// Field 0: pointer
@ -295,16 +302,6 @@ pub fn build_expr<'a, 'ctx, 'env>(
.build_insert_value(struct_val, len, Builtin::WRAPPER_LEN, "insert_len")
.unwrap();
// Field 2: capacity (initially set to length)
struct_val = builder
.build_insert_value(
struct_val,
len,
Builtin::WRAPPER_CAPACITY,
"insert_capacity",
)
.unwrap();
BasicValueEnum::StructValue(struct_val.into_struct_value())
}
}
@ -320,7 +317,8 @@ pub fn build_expr<'a, 'ctx, 'env>(
for (field_expr, field_layout) in sorted_fields.iter() {
let val = build_expr(env, &scope, parent, field_expr, procs);
let field_type = basic_type_from_layout(env.arena, env.context, &field_layout);
let field_type =
basic_type_from_layout(env.arena, env.context, &field_layout, env.ptr_bytes);
field_types.push(field_type);
field_vals.push(val);
@ -356,7 +354,8 @@ pub fn build_expr<'a, 'ctx, 'env>(
for (field_expr, field_layout) in it {
let val = build_expr(env, &scope, parent, field_expr, procs);
let field_type = basic_type_from_layout(env.arena, env.context, &field_layout);
let field_type =
basic_type_from_layout(env.arena, env.context, &field_layout, env.ptr_bytes);
field_types.push(field_type);
field_vals.push(val);
@ -382,7 +381,7 @@ pub fn build_expr<'a, 'ctx, 'env>(
tag_id,
..
} => {
let ptr_size = env.pointer_bytes;
let ptr_size = env.ptr_bytes;
let whole_size = tag_layout.stack_size(ptr_size);
let mut filler = tag_layout.stack_size(ptr_size);
@ -414,7 +413,8 @@ pub fn build_expr<'a, 'ctx, 'env>(
for (field_expr, field_layout) in arguments.iter() {
let val = build_expr(env, &scope, parent, field_expr, procs);
let field_type = basic_type_from_layout(env.arena, env.context, &field_layout);
let field_type =
basic_type_from_layout(env.arena, env.context, &field_layout, ptr_size);
field_types.push(field_type);
field_vals.push(val);
@ -559,9 +559,11 @@ pub fn build_expr<'a, 'ctx, 'env>(
// Determine types, assumes the descriminant is in the field layouts
let num_fields = field_layouts.len();
let mut field_types = Vec::with_capacity_in(num_fields, env.arena);
let ptr_bytes = env.ptr_bytes;
for field_layout in field_layouts.iter() {
let field_type = basic_type_from_layout(env.arena, env.context, &field_layout);
let field_type =
basic_type_from_layout(env.arena, env.context, &field_layout, ptr_bytes);
field_types.push(field_type);
}
@ -648,7 +650,7 @@ fn build_branch2<'a, 'ctx, 'env>(
procs: &Procs<'a>,
) -> BasicValueEnum<'ctx> {
let ret_layout = cond.ret_layout;
let ret_type = basic_type_from_layout(env.arena, env.context, &ret_layout);
let ret_type = basic_type_from_layout(env.arena, env.context, &ret_layout, env.ptr_bytes);
let cond_expr = build_expr(env, scope, parent, cond.cond, procs);
@ -877,12 +879,12 @@ pub fn build_proc_header<'a, 'ctx, 'env>(
let args = proc.args;
let arena = env.arena;
let context = &env.context;
let ret_type = basic_type_from_layout(arena, context, &proc.ret_layout);
let ret_type = basic_type_from_layout(arena, context, &proc.ret_layout, env.ptr_bytes);
let mut arg_basic_types = Vec::with_capacity_in(args.len(), arena);
let mut arg_symbols = Vec::new_in(arena);
for (layout, arg_symbol) in args.iter() {
let arg_type = basic_type_from_layout(arena, env.context, &layout);
let arg_type = basic_type_from_layout(arena, env.context, &layout, env.ptr_bytes);
arg_basic_types.push(arg_type);
arg_symbols.push(arg_symbol);
@ -950,7 +952,7 @@ pub fn verify_fn(fn_val: FunctionValue<'_>) {
#[allow(clippy::cognitive_complexity)]
fn call_with_args<'a, 'ctx, 'env>(
symbol: Symbol,
args: &[BasicValueEnum<'ctx>],
args: &[(BasicValueEnum<'ctx>, &'a Layout<'a>)],
env: &Env<'a, 'ctx, 'env>,
) -> BasicValueEnum<'ctx> {
match symbol {
@ -958,8 +960,8 @@ fn call_with_args<'a, 'ctx, 'env>(
debug_assert!(args.len() == 2);
let int_val = env.builder.build_int_add(
args[0].into_int_value(),
args[1].into_int_value(),
args[0].0.into_int_value(),
args[1].0.into_int_value(),
"add_i64",
);
@ -969,8 +971,8 @@ fn call_with_args<'a, 'ctx, 'env>(
debug_assert!(args.len() == 2);
let float_val = env.builder.build_float_add(
args[0].into_float_value(),
args[1].into_float_value(),
args[0].0.into_float_value(),
args[1].0.into_float_value(),
"add_f64",
);
@ -980,8 +982,8 @@ fn call_with_args<'a, 'ctx, 'env>(
debug_assert!(args.len() == 2);
let int_val = env.builder.build_int_sub(
args[0].into_int_value(),
args[1].into_int_value(),
args[0].0.into_int_value(),
args[1].0.into_int_value(),
"sub_I64",
);
@ -991,8 +993,8 @@ fn call_with_args<'a, 'ctx, 'env>(
debug_assert!(args.len() == 2);
let float_val = env.builder.build_float_sub(
args[0].into_float_value(),
args[1].into_float_value(),
args[0].0.into_float_value(),
args[1].0.into_float_value(),
"sub_f64",
);
@ -1002,8 +1004,8 @@ fn call_with_args<'a, 'ctx, 'env>(
debug_assert!(args.len() == 2);
let int_val = env.builder.build_int_mul(
args[0].into_int_value(),
args[1].into_int_value(),
args[0].0.into_int_value(),
args[1].0.into_int_value(),
"mul_i64",
);
@ -1014,29 +1016,26 @@ fn call_with_args<'a, 'ctx, 'env>(
let int_val = env
.builder
.build_int_neg(args[0].into_int_value(), "negate_i64");
.build_int_neg(args[0].0.into_int_value(), "negate_i64");
BasicValueEnum::IntValue(int_val)
}
Symbol::LIST_LEN => {
debug_assert!(args.len() == 1);
let wrapper_struct = args[0].into_struct_value();
let wrapper_struct = args[0].0.into_struct_value();
let builder = env.builder;
// Get the 32-bit int length
let i32_val = builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_LEN, "unwrapped_list_len").unwrap().into_int_value();
// cast the 32-bit length to a 64-bit int
BasicValueEnum::IntValue(builder.build_int_cast(i32_val, env.context.i64_type(), "i32_to_i64"))
// Get the usize int length
builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_LEN, "unwrapped_list_len").unwrap().into_int_value().into()
}
Symbol::LIST_IS_EMPTY => {
debug_assert!(args.len() == 1);
let list_struct = args[0].into_struct_value();
let list_struct = args[0].0.into_struct_value();
let builder = env.builder;
let list_len = builder.build_extract_value(list_struct, 1, "unwrapped_list_len").unwrap().into_int_value();
let zero = env.context.i32_type().const_zero();
let zero = env.ptr_int().const_zero();
let answer = builder.build_int_compare(IntPredicate::EQ, list_len, zero, "is_zero");
BasicValueEnum::IntValue(answer)
@ -1046,8 +1045,8 @@ fn call_with_args<'a, 'ctx, 'env>(
let int_val = env.builder.build_int_compare(
IntPredicate::EQ,
args[0].into_int_value(),
args[1].into_int_value(),
args[0].0.into_int_value(),
args[1].0.into_int_value(),
"cmp_i64",
);
@ -1058,8 +1057,8 @@ fn call_with_args<'a, 'ctx, 'env>(
let int_val = env.builder.build_int_compare(
IntPredicate::EQ,
args[0].into_int_value(),
args[1].into_int_value(),
args[0].0.into_int_value(),
args[1].0.into_int_value(),
"cmp_i1",
);
@ -1070,8 +1069,8 @@ fn call_with_args<'a, 'ctx, 'env>(
let int_val = env.builder.build_int_compare(
IntPredicate::EQ,
args[0].into_int_value(),
args[1].into_int_value(),
args[0].0.into_int_value(),
args[1].0.into_int_value(),
"cmp_i8",
);
@ -1082,8 +1081,8 @@ fn call_with_args<'a, 'ctx, 'env>(
let int_val = env.builder.build_float_compare(
FloatPredicate::OEQ,
args[0].into_float_value(),
args[1].into_float_value(),
args[0].0.into_float_value(),
args[1].0.into_float_value(),
"cmp_f64",
);
@ -1095,36 +1094,45 @@ fn call_with_args<'a, 'ctx, 'env>(
// List.get : List elem, Int -> Result elem [ OutOfBounds ]*
debug_assert!(args.len() == 2);
let wrapper_struct = args[0].into_struct_value();
let elem_index = args[1].into_int_value();
let (_list_expr, list_layout) = &args[0];
// Slot 1 in the wrapper struct is the length
let wrapper_struct = args[0].0.into_struct_value();
let elem_index = args[1].0.into_int_value();
// Get the length from the wrapper struct
let _list_len = builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_LEN, "unwrapped_list_len").unwrap().into_int_value();
// TODO here, check to see if the requested index exceeds the length of the array.
// Slot 0 in the wrapper struct is the pointer to the array data
let array_data_ptr = builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_PTR, "unwrapped_list_ptr").unwrap().into_pointer_value();
match list_layout {
Layout::Builtin(Builtin::List(elem_layout)) => {
// Get the pointer to the array data
let array_data_ptr = builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_PTR, "unwrapped_list_ptr").unwrap().into_pointer_value();
let elem_bytes = 8; // TODO Look this size up instead of hardcoding it!
let elem_size = env.context.i64_type().const_int(elem_bytes, false);
let elem_bytes = elem_layout.stack_size(env.ptr_bytes) as u64;
let elem_size = env.context.i64_type().const_int(elem_bytes, false);
// Calculate the offset at runtime by multiplying the index by the size of an element.
let offset_bytes = builder.build_int_mul(elem_index, elem_size, "mul_offset");
// Calculate the offset at runtime by multiplying the index by the size of an element.
let offset_bytes = builder.build_int_mul(elem_index, elem_size, "mul_offset");
// We already checked the bounds earlier.
let elem_ptr = unsafe { builder.build_in_bounds_gep(array_data_ptr, &[offset_bytes], "elem") };
// We already checked the bounds earlier.
let elem_ptr = unsafe { builder.build_in_bounds_gep(array_data_ptr, &[offset_bytes], "elem") };
builder.build_load(elem_ptr, "List.get")
builder.build_load(elem_ptr, "List.get")
}
_ => {
unreachable!("Invalid List layout for List.get: {:?}", list_layout);
}
}
}
Symbol::LIST_SET /* TODO clone first for LIST_SET! */ | Symbol::LIST_SET_IN_PLACE => {
let builder = env.builder;
debug_assert!(args.len() == 3);
let wrapper_struct = args[0].into_struct_value();
let elem_index = args[1].into_int_value();
let elem = args[2];
let wrapper_struct = args[0].0.into_struct_value();
let elem_index = args[1].0.into_int_value();
let (elem, elem_layout) = args[2];
// Slot 1 in the wrapper struct is the length
let _list_len = builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_LEN, "unwrapped_list_len").unwrap().into_int_value();
@ -1135,7 +1143,7 @@ fn call_with_args<'a, 'ctx, 'env>(
// Slot 0 in the wrapper struct is the pointer to the array data
let array_data_ptr = builder.build_extract_value(wrapper_struct, Builtin::WRAPPER_PTR, "unwrapped_list_ptr").unwrap().into_pointer_value();
let elem_bytes = 8; // TODO Look this size up instead of hardcoding it!
let elem_bytes = elem_layout.stack_size(env.ptr_bytes) as u64;
let elem_size = env.context.i64_type().const_int(elem_bytes, false);
// Calculate the offset at runtime by multiplying the index by the size of an element.
@ -1156,7 +1164,13 @@ fn call_with_args<'a, 'ctx, 'env>(
.get_function(symbol.ident_string(&env.interns))
.unwrap_or_else(|| panic!("Unrecognized function: {:?}", symbol));
let call = env.builder.build_call(fn_val, args, "tmp");
let mut arg_vals: Vec<BasicValueEnum> = Vec::with_capacity_in(args.len(), env.arena);
for (arg, _layout) in args.iter() {
arg_vals.push(*arg);
}
let call = env.builder.build_call(fn_val, arg_vals.into_bump_slice(), "call");
call.try_as_basic_value()
.left()