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Use a global to store the build context information

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Ginger Bill
2017-02-12 21:27:13 +00:00
parent 282f8bb06f
commit bd27c24fab
9 changed files with 195 additions and 220 deletions
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src/types.c
+75 -86
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@@ -178,19 +178,6 @@ typedef struct Type {
bool failure;
} Type;
// NOTE(bill): Internal sizes of certain types
// string: 2*word_size (ptr+len)
// slice: 3*word_size (ptr+len+cap)
// array: count*size_of(elem) aligned
// NOTE(bill): Alignment of structures and other types are to be compatible with C
typedef struct BaseTypeSizes {
i64 word_size;
i64 max_align;
} BaseTypeSizes;
typedef Array(i32) Array_i32;
typedef struct Selection {
@@ -350,6 +337,10 @@ gb_global Type *t_map_header = NULL;
i64 type_size_of (gbAllocator allocator, Type *t);
i64 type_align_of (gbAllocator allocator, Type *t);
i64 type_offset_of(gbAllocator allocator, Type *t, i32 index);
gbString type_to_string(Type *type);
@@ -972,6 +963,8 @@ bool is_type_cte_safe(Type *type) {
case Type_DynamicArray:
return false;
case Type_Map:
return false;
case Type_Vector: // NOTE(bill): This should always to be true but this is for sanity reasons
return is_type_cte_safe(type->Vector.elem);
@@ -1463,12 +1456,8 @@ void type_path_pop(TypePath *tp) {
#define FAILURE_ALIGNMENT 0
i64 type_size_of(BaseTypeSizes s, gbAllocator allocator, Type *t);
i64 type_align_of(BaseTypeSizes s, gbAllocator allocator, Type *t);
i64 type_offset_of(BaseTypeSizes s, gbAllocator allocator, Type *t, i32 index);
i64 type_size_of_internal (BaseTypeSizes s, gbAllocator allocator, Type *t, TypePath *path);
i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypePath *path);
i64 type_size_of_internal (gbAllocator allocator, Type *t, TypePath *path);
i64 type_align_of_internal(gbAllocator allocator, Type *t, TypePath *path);
i64 align_formula(i64 size, i64 align) {
if (align > 0) {
@@ -1478,32 +1467,32 @@ i64 align_formula(i64 size, i64 align) {
return size;
}
i64 type_size_of(BaseTypeSizes s, gbAllocator allocator, Type *t) {
i64 type_size_of(gbAllocator allocator, Type *t) {
if (t == NULL) {
return 0;
}
i64 size;
TypePath path = {0};
type_path_init(&path);
size = type_size_of_internal(s, allocator, t, &path);
size = type_size_of_internal(allocator, t, &path);
type_path_free(&path);
return size;
}
i64 type_align_of(BaseTypeSizes s, gbAllocator allocator, Type *t) {
i64 type_align_of(gbAllocator allocator, Type *t) {
if (t == NULL) {
return 1;
}
i64 align;
TypePath path = {0};
type_path_init(&path);
align = type_align_of_internal(s, allocator, t, &path);
align = type_align_of_internal(allocator, t, &path);
type_path_free(&path);
return align;
}
i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypePath *path) {
i64 type_align_of_internal(gbAllocator allocator, Type *t, TypePath *path) {
if (t->failure) {
return FAILURE_ALIGNMENT;
}
@@ -1513,11 +1502,11 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
case Type_Basic: {
GB_ASSERT(is_type_typed(t));
switch (t->kind) {
case Basic_string: return s.word_size;
case Basic_any: return s.word_size;
case Basic_string: return build_context.word_size;
case Basic_any: return build_context.word_size;
case Basic_int: case Basic_uint: case Basic_rawptr:
return s.word_size;
return build_context.word_size;
}
} break;
@@ -1527,17 +1516,17 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
if (path->failure) {
return FAILURE_ALIGNMENT;
}
i64 align = type_align_of_internal(s, allocator, t->Array.elem, path);
i64 align = type_align_of_internal(allocator, t->Array.elem, path);
type_path_pop(path);
return align;
}
case Type_DynamicArray:
// data, count, capacity, allocator
return s.word_size;
return build_context.word_size;
case Type_Slice:
return s.word_size;
return build_context.word_size;
case Type_Vector: {
Type *elem = t->Vector.elem;
@@ -1545,17 +1534,17 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
if (path->failure) {
return FAILURE_ALIGNMENT;
}
i64 size = type_size_of_internal(s, allocator, t->Vector.elem, path);
i64 size = type_size_of_internal(allocator, t->Vector.elem, path);
type_path_pop(path);
i64 count = gb_max(prev_pow2(t->Vector.count), 1);
i64 total = size * count;
return gb_clamp(total, 1, s.max_align);
return gb_clamp(total, 1, build_context.max_align);
} break;
case Type_Tuple: {
i64 max = 1;
for (isize i = 0; i < t->Tuple.variable_count; i++) {
i64 align = type_align_of_internal(s, allocator, t->Tuple.variables[i]->type, path);
i64 align = type_align_of_internal(allocator, t->Tuple.variables[i]->type, path);
if (max < align) {
max = align;
}
@@ -1565,7 +1554,7 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
case Type_Map: {
if (t->Map.count == 0) { // Dynamic
return type_align_of_internal(s, allocator, t->Map.generated_struct_type, path);
return type_align_of_internal(allocator, t->Map.generated_struct_type, path);
}
GB_PANIC("TODO(bill): Fixed map alignment");
} break;
@@ -1574,19 +1563,19 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
switch (t->Record.kind) {
case TypeRecord_Struct:
if (t->Record.custom_align > 0) {
return gb_clamp(t->Record.custom_align, 1, s.max_align);
return gb_clamp(t->Record.custom_align, 1, build_context.max_align);
}
if (t->Record.field_count > 0) {
// TODO(bill): What is this supposed to be?
if (t->Record.struct_is_packed) {
i64 max = s.word_size;
i64 max = build_context.word_size;
for (isize i = 0; i < t->Record.field_count; i++) {
Type *field_type = t->Record.fields[i]->type;
type_path_push(path, field_type);
if (path->failure) {
return FAILURE_ALIGNMENT;
}
i64 align = type_align_of_internal(s, allocator, field_type, path);
i64 align = type_align_of_internal(allocator, field_type, path);
type_path_pop(path);
if (max < align) {
max = align;
@@ -1599,7 +1588,7 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
if (path->failure) {
return FAILURE_ALIGNMENT;
}
i64 align = type_align_of_internal(s, allocator, field_type, path);
i64 align = type_align_of_internal(allocator, field_type, path);
type_path_pop(path);
return align;
}
@@ -1613,7 +1602,7 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
if (path->failure) {
return FAILURE_ALIGNMENT;
}
i64 align = type_align_of_internal(s, allocator, field_type, path);
i64 align = type_align_of_internal(allocator, field_type, path);
type_path_pop(path);
if (max < align) {
max = align;
@@ -1629,7 +1618,7 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
if (path->failure) {
return FAILURE_ALIGNMENT;
}
i64 align = type_align_of_internal(s, allocator, field_type, path);
i64 align = type_align_of_internal(allocator, field_type, path);
type_path_pop(path);
if (max < align) {
max = align;
@@ -1641,43 +1630,43 @@ i64 type_align_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, Type
} break;
}
// return gb_clamp(next_pow2(type_size_of(s, allocator, t)), 1, s.max_align);
// NOTE(bill): Things that are bigger than s.word_size, are actually comprised of smaller types
// return gb_clamp(next_pow2(type_size_of(allocator, t)), 1, build_context.max_align);
// NOTE(bill): Things that are bigger than build_context.word_size, are actually comprised of smaller types
// TODO(bill): Is this correct for 128-bit types (integers)?
return gb_clamp(next_pow2(type_size_of_internal(s, allocator, t, path)), 1, s.word_size);
return gb_clamp(next_pow2(type_size_of_internal(allocator, t, path)), 1, build_context.word_size);
}
i64 *type_set_offsets_of(BaseTypeSizes s, gbAllocator allocator, Entity **fields, isize field_count, bool is_packed) {
i64 *type_set_offsets_of(gbAllocator allocator, Entity **fields, isize field_count, bool is_packed) {
i64 *offsets = gb_alloc_array(allocator, i64, field_count);
i64 curr_offset = 0;
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);
curr_offset += type_size_of(allocator, fields[i]->type);
}
} else {
for (isize i = 0; i < field_count; i++) {
i64 align = type_align_of(s, allocator, fields[i]->type);
i64 align = type_align_of(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);
curr_offset += type_size_of(allocator, fields[i]->type);
}
}
return offsets;
}
bool type_set_offsets(BaseTypeSizes s, gbAllocator allocator, Type *t) {
bool type_set_offsets(gbAllocator allocator, Type *t) {
t = base_type(t);
if (is_type_struct(t)) {
if (!t->Record.struct_are_offsets_set) {
t->Record.struct_offsets = type_set_offsets_of(s, allocator, t->Record.fields, t->Record.field_count, t->Record.struct_is_packed);
t->Record.struct_offsets = type_set_offsets_of(allocator, t->Record.fields, t->Record.field_count, t->Record.struct_is_packed);
t->Record.struct_are_offsets_set = true;
return true;
}
} else if (is_type_tuple(t)) {
if (!t->Tuple.are_offsets_set) {
t->Tuple.offsets = type_set_offsets_of(s, allocator, t->Tuple.variables, t->Tuple.variable_count, false);
t->Tuple.offsets = type_set_offsets_of(allocator, t->Tuple.variables, t->Tuple.variable_count, false);
t->Tuple.are_offsets_set = true;
return true;
}
@@ -1687,7 +1676,7 @@ bool type_set_offsets(BaseTypeSizes s, gbAllocator allocator, Type *t) {
return false;
}
i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypePath *path) {
i64 type_size_of_internal(gbAllocator allocator, Type *t, TypePath *path) {
if (t->failure) {
return FAILURE_SIZE;
}
@@ -1701,11 +1690,11 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
return size;
}
switch (kind) {
case Basic_string: return 2*s.word_size;
case Basic_any: return 2*s.word_size;
case Basic_string: return 2*build_context.word_size;
case Basic_any: return 2*build_context.word_size;
case Basic_int: case Basic_uint: case Basic_rawptr:
return s.word_size;
return build_context.word_size;
}
} break;
@@ -1715,17 +1704,17 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
if (count == 0) {
return 0;
}
align = type_align_of_internal(s, allocator, t->Array.elem, path);
align = type_align_of_internal(allocator, t->Array.elem, path);
if (path->failure) {
return FAILURE_SIZE;
}
size = type_size_of_internal(s, allocator, t->Array.elem, path);
size = type_size_of_internal( allocator, t->Array.elem, path);
alignment = align_formula(size, align);
return alignment*(count-1) + size;
} break;
case Type_DynamicArray:
return 3*s.word_size + type_size_of(s, allocator, t_allocator);
return 3*build_context.word_size + type_size_of(allocator, t_allocator);
case Type_Vector: {
#if 0
@@ -1738,7 +1727,7 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
if (path->failure) {
return FAILURE_SIZE;
}
bit_size = 8*type_size_of_internal(s, allocator, t->Vector.elem, path);
bit_size = 8*type_size_of_internal(allocator, t->Vector.elem, path);
type_path_pop(path);
if (is_type_boolean(t->Vector.elem)) {
bit_size = 1; // NOTE(bill): LLVM can store booleans as 1 bit because a boolean _is_ an `i1`
@@ -1753,11 +1742,11 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
if (count == 0) {
return 0;
}
align = type_align_of_internal(s, allocator, t->Vector.elem, path);
align = type_align_of_internal(allocator, t->Vector.elem, path);
if (path->failure) {
return FAILURE_SIZE;
}
size = type_size_of_internal(s, allocator, t->Vector.elem, path);
size = type_size_of_internal( allocator, t->Vector.elem, path);
alignment = align_formula(size, align);
return alignment*(count-1) + size;
#endif
@@ -1765,11 +1754,11 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
case Type_Slice: // ptr + count
return 2 * s.word_size;
return 2 * build_context.word_size;
case Type_Map: {
if (t->Map.count == 0) { // Dynamic
return type_size_of_internal(s, allocator, t->Map.generated_struct_type, path);
return type_size_of_internal(allocator, t->Map.generated_struct_type, path);
}
GB_PANIC("TODO(bill): Fixed map size");
}
@@ -1780,9 +1769,9 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
if (count == 0) {
return 0;
}
align = type_align_of_internal(s, allocator, t, path);
type_set_offsets(s, allocator, t);
size = t->Tuple.offsets[count-1] + type_size_of_internal(s, allocator, t->Tuple.variables[count-1]->type, path);
align = type_align_of_internal(allocator, t, path);
type_set_offsets(allocator, t);
size = t->Tuple.offsets[count-1] + type_size_of_internal(allocator, t->Tuple.variables[count-1]->type, path);
return align_formula(size, align);
} break;
@@ -1793,44 +1782,44 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
if (count == 0) {
return 0;
}
i64 align = type_align_of_internal(s, allocator, t, path);
i64 align = type_align_of_internal(allocator, t, path);
if (path->failure) {
return FAILURE_SIZE;
}
type_set_offsets(s, allocator, t);
i64 size = t->Record.struct_offsets[count-1] + type_size_of_internal(s, allocator, t->Record.fields[count-1]->type, path);
type_set_offsets(allocator, t);
i64 size = t->Record.struct_offsets[count-1] + type_size_of_internal(allocator, t->Record.fields[count-1]->type, path);
return align_formula(size, align);
} break;
case TypeRecord_Union: {
i64 count = t->Record.field_count;
i64 align = type_align_of_internal(s, allocator, t, path);
i64 align = type_align_of_internal(allocator, t, path);
if (path->failure) {
return FAILURE_SIZE;
}
i64 max = 0;
// NOTE(bill): Zeroth field is invalid
for (isize i = 1; i < count; i++) {
i64 size = type_size_of_internal(s, allocator, t->Record.fields[i]->type, path);
i64 size = type_size_of_internal(allocator, t->Record.fields[i]->type, path);
if (max < size) {
max = size;
}
}
// NOTE(bill): Align to int
isize size = align_formula(max, s.word_size);
size += type_size_of_internal(s, allocator, t_int, path);
isize size = align_formula(max, build_context.word_size);
size += type_size_of_internal(allocator, t_int, path);
return align_formula(size, align);
} break;
case TypeRecord_RawUnion: {
i64 count = t->Record.field_count;
i64 align = type_align_of_internal(s, allocator, t, path);
i64 align = type_align_of_internal(allocator, t, path);
if (path->failure) {
return FAILURE_SIZE;
}
i64 max = 0;
for (isize i = 0; i < count; i++) {
i64 size = type_size_of_internal(s, allocator, t->Record.fields[i]->type, path);
i64 size = type_size_of_internal(allocator, t->Record.fields[i]->type, path);
if (max < size) {
max = size;
}
@@ -1843,18 +1832,18 @@ i64 type_size_of_internal(BaseTypeSizes s, gbAllocator allocator, Type *t, TypeP
}
// Catch all
return s.word_size;
return build_context.word_size;
}
i64 type_offset_of(BaseTypeSizes s, gbAllocator allocator, Type *t, i32 index) {
i64 type_offset_of(gbAllocator allocator, Type *t, i32 index) {
t = base_type(t);
if (t->kind == Type_Record && t->Record.kind == TypeRecord_Struct) {
type_set_offsets(s, allocator, t);
type_set_offsets(allocator, t);
if (gb_is_between(index, 0, t->Record.field_count-1)) {
return t->Record.struct_offsets[index];
}
} else if (t->kind == Type_Tuple) {
type_set_offsets(s, allocator, t);
type_set_offsets(allocator, t);
if (gb_is_between(index, 0, t->Tuple.variable_count-1)) {
return t->Tuple.offsets[index];
}
@@ -1862,32 +1851,32 @@ i64 type_offset_of(BaseTypeSizes s, gbAllocator allocator, Type *t, i32 index) {
if (t->Basic.kind == Basic_string) {
switch (index) {
case 0: return 0; // data
case 1: return s.word_size; // count
case 1: return build_context.word_size; // count
}
} else if (t->Basic.kind == Basic_any) {
switch (index) {
case 0: return 0; // type_info
case 1: return s.word_size; // data
case 1: return build_context.word_size; // data
}
}
} else if (t->kind == Type_Slice) {
switch (index) {
case 0: return 0; // data
case 1: return 1*s.word_size; // count
case 1: return 1*build_context.word_size; // count
}
} else if (t->kind == Type_DynamicArray) {
switch (index) {
case 0: return 0; // data
case 1: return 1*s.word_size; // count
case 2: return 2*s.word_size; // capacity
case 3: return 3*s.word_size; // allocator
case 1: return 1*build_context.word_size; // count
case 2: return 2*build_context.word_size; // capacity
case 3: return 3*build_context.word_size; // allocator
}
}
return 0;
}
i64 type_offset_of_from_selection(BaseTypeSizes s, gbAllocator allocator, Type *type, Selection sel) {
i64 type_offset_of_from_selection(gbAllocator allocator, Type *type, Selection sel) {
GB_ASSERT(sel.indirect == false);
Type *t = type;
@@ -1895,7 +1884,7 @@ i64 type_offset_of_from_selection(BaseTypeSizes s, gbAllocator allocator, Type *
for_array(i, sel.index) {
isize index = sel.index.e[i];
t = base_type(t);
offset += type_offset_of(s, allocator, t, index);
offset += type_offset_of(allocator, t, index);
if (t->kind == Type_Record && t->Record.kind == TypeRecord_Struct) {
t = t->Record.fields[index]->type;
} else {