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Begin work on hash types

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This commit is contained in:
gingerBill
2025-02-17 13:10:38 +00:00
parent 043f9aea61
commit 9b26bb2e6a
8 changed files with 114 additions and 23 deletions
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src/checker.cpp
+42 -2
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@@ -3,7 +3,10 @@
#include "entity.cpp"
#include "types.cpp"
String get_final_microarchitecture();
gb_internal u64 type_hash_canonical_type(Type *type);
gb_internal String get_final_microarchitecture();
gb_internal void check_expr(CheckerContext *c, Operand *operand, Ast *expression);
gb_internal void check_expr_or_type(CheckerContext *c, Operand *operand, Ast *expression, Type *type_hint=nullptr);
@@ -2037,7 +2040,8 @@ gb_internal void add_type_info_type_internal(CheckerContext *c, Type *t) {
// Unique entry
// NOTE(bill): map entries grow linearly and in order
ti_index = c->info->type_info_types.count;
array_add(&c->info->type_info_types, t);
Type_Info_Type tt = {t, type_hash_canonical_type(t)};
array_add(&c->info->type_info_types, tt);
}
map_set(&c->checker->info.type_info_map, t, ti_index);
@@ -6725,6 +6729,42 @@ gb_internal void check_parsed_files(Checker *c) {
add_type_and_value(&c->builtin_ctx, u.expr, u.info->mode, u.info->type, u.info->value);
}
TIME_SECTION("check for type hash collisions");
{
PtrSet<uintptr> found = {};
ptr_set_init(&found, c->info.type_info_types.count);
defer (ptr_set_destroy(&found));
for (auto const &tt : c->info.type_info_types) {
if (ptr_set_update(&found, cast(uintptr)tt.hash)) {
Type *other_type = nullptr;
for (auto const &other : c->info.type_info_types) {
if (&tt == &other) {
continue;
}
if (cast(uintptr)other.hash == cast(uintptr)tt.hash &&
!are_types_identical(tt.type, other.type)) {
other_type = other.type;
break;
}
}
if (other_type != nullptr) {
String ts = type_to_canonical_string(temporary_allocator(), tt.type);
String os = type_to_canonical_string(temporary_allocator(), other_type);
if (ts != os) {
compiler_error("%s found type hash collision with %s (hash = %llu)\n"
"%s vs %s\n",
type_to_string(tt.type), type_to_string(other_type), cast(unsigned long long)tt.hash,
temp_canonical_string(tt.type),
temp_canonical_string(other_type)
);
}
}
}
}
}
TIME_SECTION("sort init and fini procedures");
check_sort_init_and_fini_procedures(c);