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Add struct #simple to force a struct to use simple comparison if all of the fields "nearly simply comparable".

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gingerBill
2026-01-29 10:48:05 +00:00
parent 4a7fb46667
commit 07d814d9cf
10 changed files with 67 additions and 9 deletions
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25
src/types.cpp
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@@ -163,6 +163,7 @@ struct TypeStruct {
bool is_packed : 1;
bool is_raw_union : 1;
bool is_all_or_none : 1;
bool is_simple : 1;
bool is_poly_specialized : 1;
std::atomic<bool> are_offsets_being_processed;
@@ -2708,6 +2709,9 @@ gb_internal bool is_type_simple_compare(Type *t) {
return is_type_simple_compare(t->Matrix.elem);
case Type_Struct:
if (t->Struct.is_simple) {
return true;
}
for_array(i, t->Struct.fields) {
Entity *f = t->Struct.fields[i];
if (!is_type_simple_compare(f->type)) {
@@ -2768,12 +2772,16 @@ gb_internal bool is_type_nearly_simple_compare(Type *t) {
case Type_SoaPointer:
case Type_Proc:
case Type_BitSet:
case Type_BitField:
return true;
case Type_Matrix:
return is_type_nearly_simple_compare(t->Matrix.elem);
case Type_Struct:
if (t->Struct.is_simple) {
return true;
}
for_array(i, t->Struct.fields) {
Entity *f = t->Struct.fields[i];
if (!is_type_nearly_simple_compare(f->type)) {
@@ -2795,6 +2803,17 @@ gb_internal bool is_type_nearly_simple_compare(Type *t) {
case Type_SimdVector:
return is_type_nearly_simple_compare(t->SimdVector.elem);
case Type_Tuple:
if (t->Tuple.variables.count == 1) {
return is_type_nearly_simple_compare(t->Tuple.variables[0]->type);
}
break;
case Type_Slice:
case Type_DynamicArray:
case Type_Map:
return false;
}
return false;
@@ -5110,9 +5129,11 @@ gb_internal gbString write_type_to_string(gbString str, Type *type, bool shortha
str = gb_string_appendc(str, ")");
}
if (type->Struct.is_packed) str = gb_string_appendc(str, " #packed");
if (type->Struct.is_raw_union) str = gb_string_appendc(str, " #raw_union");
if (type->Struct.is_packed) str = gb_string_appendc(str, " #packed");
if (type->Struct.is_raw_union) str = gb_string_appendc(str, " #raw_union");
if (type->Struct.custom_align != 0) str = gb_string_append_fmt(str, " #align %d", cast(int)type->Struct.custom_align);
if (type->Struct.is_all_or_none) str = gb_string_appendc(str, " #all_or_none");
if (type->Struct.is_simple) str = gb_string_appendc(str, " #simple");
str = gb_string_appendc(str, " {");