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new, new_slice, delete

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Ginger Bill
2016-08-28 01:06:42 +01:00
parent ae75ab169b
commit 593563d8ea
8 changed files with 348 additions and 140 deletions
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src/codegen/ssa.cpp
+84 -3
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@@ -536,7 +536,7 @@ ssaValue *ssa_make_instr_extract_value(ssaProcedure *p, ssaValue *address, i32 i
i->ExtractValue.result_type = result_type;
Type *et = ssa_type(address);
i->ExtractValue.elem_type = et;
GB_ASSERT(et->kind == Type_Struct || et->kind == Type_Array || et->kind == Type_Tuple);
// GB_ASSERT(et->kind == Type_Struct || et->kind == Type_Array || et->kind == Type_Tuple);
return v;
}
@@ -1675,8 +1675,89 @@ ssaValue *ssa_build_single_expr(ssaProcedure *proc, AstNode *expr, TypeAndValue
if (found && (*found)->kind == Entity_Builtin) {
Entity *e = *found;
switch (e->Builtin.id) {
case BuiltinProc_new: {
// new :: proc(Type) -> ^Type
gbAllocator allocator = proc->module->allocator;
Type *type = type_of_expr(proc->module->info, ce->arg_list);
Type *ptr_type = make_type_pointer(allocator, type);
i64 s = type_size_of(proc->module->sizes, allocator, type);
i64 a = type_align_of(proc->module->sizes, allocator, type);
// TODO(bill): Make procedure for: ssa_get_global_procedure()
ssaValue *alloc_align_proc = *map_get(&proc->module->members, hash_string(make_string("alloc_align")));
ssaValue **args = gb_alloc_array(allocator, ssaValue *, 2);
args[0] = ssa_make_value_constant(allocator, t_int, make_exact_value_integer(s));
args[1] = ssa_make_value_constant(allocator, t_int, make_exact_value_integer(a));
ssaValue *call = ssa_emit(proc, ssa_make_instr_call(proc, alloc_align_proc, args, 2, t_rawptr));
ssaValue *v = ssa_emit_conv(proc, call, ptr_type);
return v;
} break;
case BuiltinProc_new_slice: {
// new_slice :: proc(Type, len: int[, cap: int]) -> ^Type
gbAllocator allocator = proc->module->allocator;
Type *type = type_of_expr(proc->module->info, ce->arg_list);
Type *ptr_type = make_type_pointer(allocator, type);
Type *slice_type = make_type_slice(allocator, type);
i64 s = type_size_of(proc->module->sizes, allocator, type);
i64 a = type_align_of(proc->module->sizes, allocator, type);
ssaValue *alloc_align_proc = *map_get(&proc->module->members, hash_string(make_string("alloc_align")));
ssaValue *elem_size = ssa_make_value_constant(allocator, t_int, make_exact_value_integer(s));
ssaValue *elem_align = ssa_make_value_constant(allocator, t_int, make_exact_value_integer(a));
AstNode *len_node = ce->arg_list->next;
AstNode *cap_node = len_node->next;
ssaValue *len = ssa_build_expr(proc, len_node);
ssaValue *cap = len;
if (cap_node != NULL) {
cap = ssa_build_expr(proc, cap_node);
}
Token mul = {Token_Mul};
ssaValue *slice_size = ssa_emit_arith(proc, mul, elem_size, cap, t_int);
ssaValue **args = gb_alloc_array(allocator, ssaValue *, 2);
args[0] = slice_size;
args[1] = elem_align;
ssaValue *call = ssa_emit(proc, ssa_make_instr_call(proc, alloc_align_proc, args, 2, t_rawptr));
ssaValue *ptr = ssa_emit_conv(proc, call, ptr_type);
ssaValue *slice = ssa_add_local_generated(proc, slice_type);
ssa_emit_store(proc, ssa_emit_struct_gep(proc, slice, v_zero32, ptr_type), ptr);
ssa_emit_store(proc, ssa_emit_struct_gep(proc, slice, v_one32, t_int), len);
ssa_emit_store(proc, ssa_emit_struct_gep(proc, slice, v_two32, t_int), cap);
return ssa_emit_load(proc, slice);
} break;
case BuiltinProc_delete: {
// delete :: proc(ptr: ^Type)
// delete :: proc(slice: []Type)
gbAllocator allocator = proc->module->allocator;
ssaValue *value = ssa_build_expr(proc, ce->arg_list);
ssaValue *dealloc_proc = *map_get(&proc->module->members, hash_string(make_string("dealloc")));
if (is_type_slice(ssa_type(value))) {
Type *etp = get_base_type(ssa_type(value));
etp = make_type_pointer(allocator, etp->Slice.elem);
value = ssa_emit(proc, ssa_make_instr_extract_value(proc, value, 0, etp));
}
ssaValue **args = gb_alloc_array(allocator, ssaValue *, 1);
args[0] = ssa_emit_conv(proc, value, t_rawptr);
return ssa_emit(proc, ssa_make_instr_call(proc, dealloc_proc, args, 1, NULL));
} break;
case BuiltinProc_len: {
// len :: proc(Type) -> int
// len :: proc(v: Type) -> int
// NOTE(bill): len of an array is a constant expression
ssaValue *v = ssa_build_addr(proc, ce->arg_list).addr;
Type *t = get_base_type(ssa_type(v));
@@ -1686,7 +1767,7 @@ ssaValue *ssa_build_single_expr(ssaProcedure *proc, AstNode *expr, TypeAndValue
return ssa_slice_len(proc, v);
} break;
case BuiltinProc_cap: {
// cap :: proc(Type) -> int
// cap :: proc(v: Type) -> int
// NOTE(bill): cap of an array is a constant expression
ssaValue *v = ssa_build_addr(proc, ce->arg_list).addr;
Type *t = get_base_type(ssa_type(v));