Add intrinsics.type_hasher_proc; Make map work with generic hasher procedure

This commit is contained in:
gingerBill
2020-11-29 15:27:53 +00:00
parent 085972bb2c
commit 97c66c9c73
11 changed files with 338 additions and 99 deletions
+134 -56
View File
@@ -8559,6 +8559,9 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
case BuiltinProc_type_equal_proc:
return lb_get_equal_proc_for_type(p->module, ce->args[0]->tav.type);
case BuiltinProc_type_hasher_proc:
return lb_get_hasher_proc_for_type(p->module, ce->args[0]->tav.type);
}
GB_PANIC("Unhandled built-in procedure %.*s", LIT(builtin_procs[id].name));
@@ -9169,84 +9172,156 @@ lbValue lb_get_equal_proc_for_type(lbModule *m, Type *type) {
LLVMTypeRef ptr_type = lb_type(m, pt);
auto key = hash_type(type);
lbProcedure **found = map_get(&m->compare_procs, key);
lbProcedure **found = map_get(&m->equal_procs, key);
lbProcedure *compare_proc = nullptr;
if (found) {
compare_proc = *found;
} else {
static u32 proc_index = 0;
GB_ASSERT(compare_proc != nullptr);
return {compare_proc->value, compare_proc->type};
}
char buf[16] = {};
isize n = gb_snprintf(buf, 16, "__$cmp%u", ++proc_index);
char *str = gb_alloc_str_len(permanent_allocator(), buf, n-1);
String proc_name = make_string_c(str);
static u32 proc_index = 0;
lbProcedure *p = lb_create_dummy_procedure(m, proc_name, t_equal_proc);
lb_begin_procedure_body(p);
char buf[16] = {};
isize n = gb_snprintf(buf, 16, "__$equal%u", ++proc_index);
char *str = gb_alloc_str_len(permanent_allocator(), buf, n-1);
String proc_name = make_string_c(str);
LLVMValueRef x = LLVMGetParam(p->value, 0);
LLVMValueRef y = LLVMGetParam(p->value, 1);
x = LLVMBuildPointerCast(p->builder, x, ptr_type, "");
y = LLVMBuildPointerCast(p->builder, y, ptr_type, "");
lbValue lhs = {x, pt};
lbValue rhs = {y, pt};
lbProcedure *p = lb_create_dummy_procedure(m, proc_name, t_equal_proc);
map_set(&m->equal_procs, key, p);
lb_begin_procedure_body(p);
LLVMValueRef x = LLVMGetParam(p->value, 0);
LLVMValueRef y = LLVMGetParam(p->value, 1);
x = LLVMBuildPointerCast(p->builder, x, ptr_type, "");
y = LLVMBuildPointerCast(p->builder, y, ptr_type, "");
lbValue lhs = {x, pt};
lbValue rhs = {y, pt};
lbBlock *block_same_ptr = lb_create_block(p, "same_ptr");
lbBlock *block_diff_ptr = lb_create_block(p, "diff_ptr");
lbBlock *block_same_ptr = lb_create_block(p, "same_ptr");
lbBlock *block_diff_ptr = lb_create_block(p, "diff_ptr");
lbValue same_ptr = lb_emit_comp(p, Token_CmpEq, lhs, rhs);
lb_emit_if(p, same_ptr, block_same_ptr, block_diff_ptr);
lb_start_block(p, block_same_ptr);
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 1, false));
lbValue same_ptr = lb_emit_comp(p, Token_CmpEq, lhs, rhs);
lb_emit_if(p, same_ptr, block_same_ptr, block_diff_ptr);
lb_start_block(p, block_same_ptr);
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 1, false));
lb_start_block(p, block_diff_ptr);
lb_start_block(p, block_diff_ptr);
if (type->kind == Type_Struct) {
type_set_offsets(type);
if (type->kind == Type_Struct) {
type_set_offsets(type);
lbBlock *block_false = lb_create_block(p, "bfalse");
lbValue res = lb_const_bool(m, t_bool, true);
lbBlock *block_false = lb_create_block(p, "bfalse");
lbValue res = lb_const_bool(m, t_bool, true);
for_array(i, type->Struct.fields) {
lbBlock *next_block = lb_create_block(p, "btrue");
for_array(i, type->Struct.fields) {
lbBlock *next_block = lb_create_block(p, "btrue");
lbValue pleft = lb_emit_struct_ep(p, lhs, cast(i32)i);
lbValue pright = lb_emit_struct_ep(p, rhs, cast(i32)i);
lbValue left = lb_emit_load(p, pleft);
lbValue right = lb_emit_load(p, pright);
lbValue ok = lb_emit_comp(p, Token_CmpEq, left, right);
lb_emit_if(p, ok, next_block, block_false);
lb_emit_jump(p, next_block);
lb_start_block(p, next_block);
}
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 1, false));
lb_start_block(p, block_false);
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 0, false));
} else {
lbValue left = lb_emit_load(p, lhs);
lbValue right = lb_emit_load(p, rhs);
lbValue pleft = lb_emit_struct_ep(p, lhs, cast(i32)i);
lbValue pright = lb_emit_struct_ep(p, rhs, cast(i32)i);
lbValue left = lb_emit_load(p, pleft);
lbValue right = lb_emit_load(p, pright);
lbValue ok = lb_emit_comp(p, Token_CmpEq, left, right);
ok = lb_emit_conv(p, ok, t_bool);
LLVMBuildRet(p->builder, ok.value);
lb_emit_if(p, ok, next_block, block_false);
lb_emit_jump(p, next_block);
lb_start_block(p, next_block);
}
lb_end_procedure_body(p);
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 1, false));
map_set(&m->compare_procs, key, p);
lb_start_block(p, block_false);
compare_proc = p;
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 0, false));
} else {
lbValue left = lb_emit_load(p, lhs);
lbValue right = lb_emit_load(p, rhs);
lbValue ok = lb_emit_comp(p, Token_CmpEq, left, right);
ok = lb_emit_conv(p, ok, t_bool);
LLVMBuildRet(p->builder, ok.value);
}
GB_ASSERT(compare_proc != nullptr);
lb_end_procedure_body(p);
compare_proc = p;
return {compare_proc->value, compare_proc->type};
}
lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
Type *original_type = type;
type = base_type(type);
GB_ASSERT(is_type_valid_for_keys(type));
Type *pt = alloc_type_pointer(type);
LLVMTypeRef ptr_type = lb_type(m, pt);
auto key = hash_type(type);
lbProcedure **found = map_get(&m->hasher_procs, key);
lbProcedure *hasher_proc = nullptr;
if (found) {
hasher_proc = *found;
GB_ASSERT(hasher_proc != nullptr);
return {hasher_proc->value, hasher_proc->type};
}
static u32 proc_index = 0;
char buf[16] = {};
isize n = gb_snprintf(buf, 16, "__$hasher%u", ++proc_index);
char *str = gb_alloc_str_len(permanent_allocator(), buf, n-1);
String proc_name = make_string_c(str);
lbProcedure *p = lb_create_dummy_procedure(m, proc_name, t_hasher_proc);
map_set(&m->hasher_procs, key, p);
lb_begin_procedure_body(p);
LLVMValueRef x = LLVMGetParam(p->value, 0);
LLVMValueRef y = LLVMGetParam(p->value, 1);
lbValue data = {x, t_rawptr};
lbValue seed = {y, t_uintptr};
if (type->kind == Type_Struct) {
type_set_offsets(type);
GB_PANIC("Type_Struct");
} else if (is_type_string(type)) {
auto args = array_make<lbValue>(permanent_allocator(), 2);
args[0] = data;
args[1] = seed;
lbValue res = lb_emit_runtime_call(p, "default_hasher_string", args);
LLVMBuildRet(p->builder, res.value);
} else {
GB_ASSERT_MSG(is_type_simple_compare(type), "%s", type_to_string(type));
i64 sz = type_size_of(type);
char const *name = nullptr;
switch (sz) {
case 1: name = "default_hasher1"; break;
case 2: name = "default_hasher2"; break;
case 4: name = "default_hasher4"; break;
case 8: name = "default_hasher8"; break;
case 16: name = "default_hasher16"; break;
default: GB_PANIC("unhandled hasher for key type: %s", type_to_string(type));
}
GB_ASSERT(name != nullptr);
auto args = array_make<lbValue>(permanent_allocator(), 2);
args[0] = data;
args[1] = seed;
lbValue res = lb_emit_runtime_call(p, name, args);
LLVMBuildRet(p->builder, res.value);
}
lb_end_procedure_body(p);
hasher_proc = p;
return {hasher_proc->value, hasher_proc->type};
}
lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue right) {
Type *a = core_type(left.type);
Type *b = core_type(right.type);
@@ -11571,7 +11646,8 @@ void lb_init_module(lbModule *m, Checker *c) {
string_map_init(&m->const_strings, a);
map_init(&m->anonymous_proc_lits, a);
map_init(&m->function_type_map, a);
map_init(&m->compare_procs, a);
map_init(&m->equal_procs, a);
map_init(&m->hasher_procs, a);
array_init(&m->procedures_to_generate, a);
array_init(&m->foreign_library_paths, a);
@@ -12307,10 +12383,12 @@ void lb_setup_type_info_data(lbProcedure *p) { // NOTE(bill): Setup type_info da
tag = lb_const_ptr_cast(m, variant_ptr, t_type_info_map_ptr);
init_map_internal_types(t);
LLVMValueRef vals[3] = {
LLVMValueRef vals[5] = {
lb_get_type_info_ptr(m, t->Map.key).value,
lb_get_type_info_ptr(m, t->Map.value).value,
lb_get_type_info_ptr(m, t->Map.generated_struct_type).value,
lb_get_equal_proc_for_type(m, t->Map.key).value,
lb_get_hasher_proc_for_type(m, t->Map.key).value
};
lbValue res = {};