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Tuple support in codegen

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This commit is contained in:
gingerBill
2016-08-10 11:53:17 +01:00
parent c930841f83
commit 153c27c755
9 changed files with 244 additions and 112 deletions
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src/checker/type.cpp
+25 -15
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@@ -103,6 +103,7 @@ struct Type {
isize field_count; // == offset_count
i64 * offsets;
b32 are_offsets_set;
b32 is_packed;
} structure;
struct { Type *elem; } pointer;
struct {
@@ -563,37 +564,46 @@ i64 type_align_of(BaseTypeSizes s, gbAllocator allocator, Type *t) {
} break;
case Type_Structure: {
i64 max = 1;
for (isize i = 0; i < t->structure.field_count; i++) {
i64 align = type_align_of(s, allocator, t->structure.fields[i]->type);
if (max < align)
max = align;
if (!t->structure.is_packed) {
i64 max = 1;
for (isize i = 0; i < t->structure.field_count; i++) {
i64 align = type_align_of(s, allocator, t->structure.fields[i]->type);
if (max < align)
max = align;
}
return max;
}
return max;
} break;
}
return gb_clamp(type_size_of(s, allocator, t), 1, s.max_align);
return gb_clamp(next_pow2(type_size_of(s, allocator, t)), 1, s.max_align);
}
i64 *type_set_offsets_of(BaseTypeSizes s, gbAllocator allocator, Entity **fields, isize field_count) {
i64 *type_set_offsets_of(BaseTypeSizes s, gbAllocator allocator, Entity **fields, isize field_count, b32 is_packed) {
// TODO(bill): use arena allocation
i64 *offsets = gb_alloc_array(allocator, i64, field_count);
i64 curr_offset = 0;
for (isize i = 0; i < field_count; i++) {
i64 align = type_align_of(s, allocator, fields[i]->type);
curr_offset = align_formula(curr_offset, align);
offsets[i] = curr_offset;
curr_offset += type_size_of(s, allocator, fields[i]->type);
}
if (is_packed) {
for (isize i = 0; i < field_count; i++) {
offsets[i] = curr_offset;
curr_offset += type_size_of(s, allocator, fields[i]->type);
}
} else {
for (isize i = 0; i < field_count; i++) {
i64 align = type_align_of(s, allocator, fields[i]->type);
curr_offset = align_formula(curr_offset, align);
offsets[i] = curr_offset;
curr_offset += type_size_of(s, allocator, fields[i]->type);
}
}
return offsets;
}
b32 type_set_offsets(BaseTypeSizes s, gbAllocator allocator, Type *t) {
GB_ASSERT(t->kind == Type_Structure);
if (!t->structure.are_offsets_set) {
t->structure.offsets = type_set_offsets_of(s, allocator, t->structure.fields, t->structure.field_count);
t->structure.offsets = type_set_offsets_of(s, allocator, t->structure.fields, t->structure.field_count, t->structure.is_packed);
t->structure.are_offsets_set = true;
return true;
}