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reserve tag union as array of bytes in llvm

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Folkert 2020-03-17 00:13:47 +01:00
parent 6ff22de9dd
commit 444e3063e0
1 changed files with 9 additions and 2 deletions
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11
compiler/gen/src/llvm/convert.rs
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@ -68,8 +68,15 @@ pub fn basic_type_from_layout<'ctx>(
.struct_type(field_types.into_bump_slice(), false) .struct_type(field_types.into_bump_slice(), false)
.as_basic_type_enum() .as_basic_type_enum()
} }
Union(_fields) => { Union(fields) => {
panic!("TODO layout_to_basic_type for Tag"); // TODO make this dynamic
let ptr_size = std::mem::size_of::<i64>();
let union_size = layout.stack_size(ptr_size as u32);
context
.i8_type()
.array_type(union_size)
.as_basic_type_enum()
} }
Pointer(_layout) => { Pointer(_layout) => {
panic!("TODO layout_to_basic_type for Pointer"); panic!("TODO layout_to_basic_type for Pointer");