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Merge pull request #5799 from roc-lang/luke-windows-changes

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fix  memcpy on windows
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Luke Boswell 2023-09-13 05:31:58 +10:00 • committed by GitHub
commit 9507c527c8
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4 changed files with 57 additions and 21 deletions
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62
crates/compiler/gen_llvm/src/llvm/lowlevel.rs
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@ -1,7 +1,7 @@
use inkwell::{
attributes::{Attribute, AttributeLoc},
module::Linkage,
types::{BasicType, IntType},
types::{BasicType, BasicTypeEnum, IntType},
values::{
BasicValue, BasicValueEnum, FloatValue, FunctionValue, InstructionOpcode, IntValue,
PointerValue, StructValue,
@ -287,19 +287,37 @@ pub(crate) fn run_low_level<'a, 'ctx>(
}
}
PtrWidth::Bytes8 => {
let cc_return_by_pointer = match layout_interner.get_repr(number_layout) {
LayoutRepr::Builtin(Builtin::Int(int_width)) => {
(int_width.stack_size() as usize > env.target_info.ptr_size())
.then_some(int_width.type_name())
let (type_name, width) = {
match layout_interner.get_repr(number_layout) {
LayoutRepr::Builtin(Builtin::Int(int_width)) => {
(int_width.type_name(), int_width.stack_size())
}
LayoutRepr::Builtin(Builtin::Decimal) => {
// zig picks 128 for dec.RocDec
("i128", 16)
}
LayoutRepr::Builtin(Builtin::Float(float_width)) => {
(float_width.type_name(), float_width.stack_size())
}
_ => {
unreachable!("other layout types are non-numeric")
}
}
LayoutRepr::Builtin(Builtin::Decimal) => {
// zig picks 128 for dec.RocDec
Some("i128")
}
_ => None,
};
if let Some(type_name) = cc_return_by_pointer {
use roc_target::OperatingSystem::*;
let cc_return_by_pointer = match env.target_info.operating_system {
Windows => {
// there is just one return register on Windows
(width + 1) as usize > env.target_info.ptr_size()
}
_ => {
// on other systems we have two return registers
(width + 1) as usize > 2 * env.target_info.ptr_size()
}
};
if cc_return_by_pointer {
let bitcode_return_type = zig_num_parse_result_type(env, type_name);
call_bitcode_fn_fixing_for_convention(
@ -495,12 +513,18 @@ pub(crate) fn run_low_level<'a, 'ctx>(
use roc_target::OperatingSystem::*;
match env.target_info.operating_system {
Windows => {
let return_type = env.context.struct_type(
&[env.ptr_int().into(), env.context.i32_type().into()],
false,
);
let zig_return_type = env
.module
.get_function(bitcode::STR_GET_SCALAR_UNSAFE)
.unwrap()
.get_type()
.get_param_types()[0]
.into_pointer_type()
.get_element_type();
let result = env.builder.build_alloca(return_type, "result");
let result = env
.builder
.build_alloca(BasicTypeEnum::try_from(zig_return_type).unwrap(), "result");
call_void_bitcode_fn(
env,
@ -508,19 +532,19 @@ pub(crate) fn run_low_level<'a, 'ctx>(
bitcode::STR_GET_SCALAR_UNSAFE,
);
let return_type = basic_type_from_layout(
let roc_return_type = basic_type_from_layout(
env,
layout_interner,
layout_interner.get_repr(layout),
);
let cast_result = env.builder.build_pointer_cast(
result,
return_type.ptr_type(AddressSpace::default()),
roc_return_type.ptr_type(AddressSpace::default()),
"cast",
);
env.builder
.new_build_load(return_type, cast_result, "load_result")
.new_build_load(roc_return_type, cast_result, "load_result")
}
Unix => {
let result = call_str_bitcode_fn(