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rework compile-time known pointer values

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See #257
This commit is contained in:
Andrew Kelley
2017-02-11 13:13:45 -05:00
parent 12049aa43b
commit 39287d7346
6 changed files with 633 additions and 302 deletions
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556
src/ir.cpp
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@@ -64,16 +64,21 @@ static IrInstruction *ir_implicit_cast(IrAnalyze *ira, IrInstruction *value, Typ
ConstExprValue *const_ptr_pointee(ConstExprValue *const_val) {
assert(const_val->special == ConstValSpecialStatic);
assert(const_val->data.x_ptr.special != ConstPtrSpecialRuntime);
ConstExprValue *base_ptr = const_val->data.x_ptr.base_ptr;
size_t index = const_val->data.x_ptr.index;
if (index == SIZE_MAX) {
return base_ptr;
} else {
assert(index < base_ptr->data.x_array.size);
return &base_ptr->data.x_array.elements[index];
switch (const_val->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
return const_val->data.x_ptr.data.ref.pointee;
case ConstPtrSpecialBaseArray:
return &const_val->data.x_ptr.data.base_array.array_val->data.x_array.elements[
const_val->data.x_ptr.data.base_array.elem_index];
case ConstPtrSpecialBaseStruct:
return &const_val->data.x_ptr.data.base_struct.struct_val->data.x_struct.fields[
const_val->data.x_ptr.data.base_struct.field_index];
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
zig_unreachable();
}
static bool ir_should_inline(IrExecutable *exec, Scope *scope) {
@@ -6209,7 +6214,7 @@ static TypeTableEntry *ir_analyze_void(IrAnalyze *ira, IrInstruction *instructio
static TypeTableEntry *ir_analyze_const_ptr(IrAnalyze *ira, IrInstruction *instruction,
ConstExprValue *pointee, TypeTableEntry *pointee_type,
ConstPtrSpecial special, bool ptr_is_const, bool ptr_is_volatile)
bool comptime_var_mem, bool ptr_is_const, bool ptr_is_volatile)
{
if (pointee_type->id == TypeTableEntryIdMetaType) {
TypeTableEntry *type_entry = pointee->data.x_type;
@@ -6227,9 +6232,9 @@ static TypeTableEntry *ir_analyze_const_ptr(IrAnalyze *ira, IrInstruction *instr
TypeTableEntry *ptr_type = get_pointer_to_type_volatile(ira->codegen, pointee_type,
ptr_is_const, ptr_is_volatile);
ConstExprValue *const_val = ir_build_const_from(ira, instruction);
const_val->data.x_ptr.base_ptr = pointee;
const_val->data.x_ptr.index = SIZE_MAX;
const_val->data.x_ptr.special = special;
const_val->data.x_ptr.special = ConstPtrSpecialRef;
const_val->data.x_ptr.comptime_var_mem = comptime_var_mem;
const_val->data.x_ptr.data.ref.pointee = pointee;
return ptr_type;
}
}
@@ -6471,8 +6476,8 @@ static IrInstruction *ir_analyze_cast_ref(IrAnalyze *ira, IrInstruction *source_
source_instr->scope, source_instr->source_node);
const_instruction->base.value.type = wanted_type;
const_instruction->base.value.special = ConstValSpecialStatic;
const_instruction->base.value.data.x_ptr.base_ptr = val;
const_instruction->base.value.data.x_ptr.index = SIZE_MAX;
const_instruction->base.value.data.x_ptr.special = ConstPtrSpecialRef;
const_instruction->base.value.data.x_ptr.data.ref.pointee = val;
return &const_instruction->base;
}
@@ -6608,10 +6613,10 @@ static IrInstruction *ir_analyze_ptr_to_int(IrAnalyze *ira, IrInstruction *sourc
ConstExprValue *val = ir_resolve_const(ira, target, UndefBad);
if (!val)
return ira->codegen->invalid_instruction;
if (val->data.x_ptr.special == ConstPtrSpecialRuntime) {
if (val->data.x_ptr.special == ConstPtrSpecialHardCodedAddr) {
IrInstruction *result = ir_create_const(&ira->new_irb, source_instr->scope,
source_instr->source_node, wanted_type);
bignum_init_unsigned(&result->value.data.x_bignum, val->data.x_ptr.index);
bignum_init_unsigned(&result->value.data.x_bignum, val->data.x_ptr.data.hard_coded_addr.addr);
return result;
}
}
@@ -6633,9 +6638,8 @@ static IrInstruction *ir_analyze_int_to_ptr(IrAnalyze *ira, IrInstruction *sourc
return ira->codegen->invalid_instruction;
IrInstruction *result = ir_create_const(&ira->new_irb, source_instr->scope,
source_instr->source_node, wanted_type);
result->value.data.x_ptr.base_ptr = nullptr;
result->value.data.x_ptr.index = bignum_to_twos_complement(&val->data.x_bignum);
result->value.data.x_ptr.special = ConstPtrSpecialRuntime;
result->value.data.x_ptr.special = ConstPtrSpecialHardCodedAddr;
result->value.data.x_ptr.data.hard_coded_addr.addr = bignum_to_twos_complement(&val->data.x_bignum);
return result;
}
@@ -6660,9 +6664,8 @@ static IrInstruction *ir_analyze_int_lit_to_ptr(IrAnalyze *ira, IrInstruction *s
IrInstruction *result = ir_create_const(&ira->new_irb, source_instr->scope,
source_instr->source_node, wanted_type);
result->value.data.x_ptr.base_ptr = nullptr;
result->value.data.x_ptr.index = bignum_to_twos_complement(&val->data.x_bignum);
result->value.data.x_ptr.special = ConstPtrSpecialRuntime;
result->value.data.x_ptr.special = ConstPtrSpecialHardCodedAddr;
result->value.data.x_ptr.data.hard_coded_addr.addr = bignum_to_twos_complement(&val->data.x_bignum);
return result;
}
@@ -7006,17 +7009,22 @@ static IrInstruction *ir_get_deref(IrAnalyze *ira, IrInstruction *source_instruc
return ira->codegen->invalid_instruction;
} else if (type_entry->id == TypeTableEntryIdPointer) {
TypeTableEntry *child_type = type_entry->data.pointer.child_type;
if (ptr->value.special != ConstValSpecialRuntime) {
ConstExprValue *pointee = const_ptr_pointee(&ptr->value);
if (pointee->special != ConstValSpecialRuntime) {
IrInstruction *result = ir_create_const(&ira->new_irb, source_instruction->scope,
source_instruction->source_node, child_type);
result->value = *pointee;
return result;
if (instr_is_comptime(ptr)) {
// Dereferencing a mutable pointer at compile time is not allowed
// unless that pointer is from a comptime variable
if (type_entry->data.pointer.is_const || ptr->value.data.x_ptr.comptime_var_mem) {
ConstExprValue *pointee = const_ptr_pointee(&ptr->value);
if (pointee->special != ConstValSpecialRuntime) {
IrInstruction *result = ir_create_const(&ira->new_irb, source_instruction->scope,
source_instruction->source_node, child_type);
result->value = *pointee;
return result;
}
}
}
// TODO if the instruction is a get pointer instruction we can skip it
IrInstruction *load_ptr_instruction = ir_build_load_ptr(&ira->new_irb, source_instruction->scope, source_instruction->source_node, ptr);
// TODO if the instruction is a const ref instruction we can skip it
IrInstruction *load_ptr_instruction = ir_build_load_ptr(&ira->new_irb, source_instruction->scope,
source_instruction->source_node, ptr);
load_ptr_instruction->value.type = child_type;
return load_ptr_instruction;
} else if (type_entry->id == TypeTableEntryIdMetaType) {
@@ -7052,8 +7060,7 @@ static TypeTableEntry *ir_analyze_ref(IrAnalyze *ira, IrInstruction *source_inst
ConstExprValue *val = ir_resolve_const(ira, value, UndefBad);
if (!val)
return ira->codegen->builtin_types.entry_invalid;
return ir_analyze_const_ptr(ira, source_instruction, val, value->value.type,
ConstPtrSpecialNone, is_const, is_volatile);
return ir_analyze_const_ptr(ira, source_instruction, val, value->value.type, false, is_const, is_volatile);
}
TypeTableEntry *ptr_type = get_pointer_to_type_volatile(ira->codegen, value->value.type, is_const, is_volatile);
@@ -7136,13 +7143,14 @@ static Buf *ir_resolve_str(IrAnalyze *ira, IrInstruction *value) {
ConstExprValue *ptr_field = &const_val->data.x_struct.fields[slice_ptr_index];
ConstExprValue *len_field = &const_val->data.x_struct.fields[slice_len_index];
ConstExprValue *array_val = ptr_field->data.x_ptr.base_ptr;
assert(ptr_field->data.x_ptr.index != SIZE_MAX);
assert(ptr_field->data.x_ptr.special == ConstPtrSpecialBaseArray);
ConstExprValue *array_val = ptr_field->data.x_ptr.data.base_array.array_val;
size_t len = len_field->data.x_bignum.data.x_uint;
Buf *result = buf_alloc();
buf_resize(result, len);
for (size_t i = 0; i < len; i += 1) {
size_t new_index = ptr_field->data.x_ptr.index + i;
size_t new_index = ptr_field->data.x_ptr.data.base_array.elem_index + i;
ConstExprValue *char_val = &array_val->data.x_array.elements[new_index];
uint64_t big_c = char_val->data.x_bignum.data.x_uint;
assert(big_c <= UINT8_MAX);
@@ -7591,22 +7599,24 @@ static TypeTableEntry *ir_analyze_array_cat(IrAnalyze *ira, IrInstructionBinOp *
child_type = op1_canon_type->data.array.child_type;
op1_array_val = op1_val;
op1_array_index = 0;
op1_array_end = op1_val->data.x_array.size;
op1_array_end = op1_canon_type->data.array.len;
} else if (op1_canon_type->id == TypeTableEntryIdPointer &&
op1_canon_type->data.pointer.child_type == ira->codegen->builtin_types.entry_u8 &&
op1_val->data.x_ptr.special == ConstPtrSpecialCStr)
op1_val->data.x_ptr.special == ConstPtrSpecialBaseArray &&
op1_val->data.x_ptr.data.base_array.is_cstr)
{
child_type = op1_canon_type->data.pointer.child_type;
op1_array_val = op1_val->data.x_ptr.base_ptr;
op1_array_index = op1_val->data.x_ptr.index;
op1_array_end = op1_array_val->data.x_array.size - 1;
op1_array_val = op1_val->data.x_ptr.data.base_array.array_val;
op1_array_index = op1_val->data.x_ptr.data.base_array.elem_index;
op1_array_end = op1_array_val->type->data.array.len - 1;
} else if (is_slice(op1_canon_type)) {
TypeTableEntry *ptr_type = op1_canon_type->data.structure.fields[slice_ptr_index].type_entry;
child_type = ptr_type->data.pointer.child_type;
ConstExprValue *ptr_val = &op1_val->data.x_struct.fields[slice_ptr_index];
op1_array_val = ptr_val->data.x_ptr.base_ptr;
op1_array_index = ptr_val->data.x_ptr.index;
op1_array_end = op1_array_val->data.x_array.size;
assert(ptr_val->data.x_ptr.special == ConstPtrSpecialBaseArray);
op1_array_val = ptr_val->data.x_ptr.data.base_array.array_val;
op1_array_index = ptr_val->data.x_ptr.data.base_array.elem_index;
op1_array_end = op1_array_val->type->data.array.len;
} else {
ir_add_error(ira, op1,
buf_sprintf("expected array or C string literal, found '%s'", buf_ptr(&op1->value.type->name)));
@@ -7626,10 +7636,11 @@ static TypeTableEntry *ir_analyze_array_cat(IrAnalyze *ira, IrInstructionBinOp *
}
op2_array_val = op2_val;
op2_array_index = 0;
op2_array_end = op2_array_val->data.x_array.size;
op2_array_end = op2_array_val->type->data.array.len;
} else if (op2_canon_type->id == TypeTableEntryIdPointer &&
op2_canon_type->data.pointer.child_type == ira->codegen->builtin_types.entry_u8 &&
op2_val->data.x_ptr.special == ConstPtrSpecialCStr)
op2_val->data.x_ptr.special == ConstPtrSpecialBaseArray &&
op2_val->data.x_ptr.data.base_array.is_cstr)
{
if (child_type != ira->codegen->builtin_types.entry_u8) {
ir_add_error(ira, op2, buf_sprintf("expected array of type '%s', found '%s'",
@@ -7637,9 +7648,9 @@ static TypeTableEntry *ir_analyze_array_cat(IrAnalyze *ira, IrInstructionBinOp *
buf_ptr(&op2->value.type->name)));
return ira->codegen->builtin_types.entry_invalid;
}
op2_array_val = op2_val->data.x_ptr.base_ptr;
op2_array_index = op2_val->data.x_ptr.index;
op2_array_end = op2_array_val->data.x_array.size - 1;
op2_array_val = op2_val->data.x_ptr.data.base_array.array_val;
op2_array_index = op2_val->data.x_ptr.data.base_array.elem_index;
op2_array_end = op2_array_val->type->data.array.len - 1;
} else if (is_slice(op2_canon_type)) {
TypeTableEntry *ptr_type = op2_canon_type->data.structure.fields[slice_ptr_index].type_entry;
if (ptr_type->data.pointer.child_type != child_type) {
@@ -7649,9 +7660,10 @@ static TypeTableEntry *ir_analyze_array_cat(IrAnalyze *ira, IrInstructionBinOp *
return ira->codegen->builtin_types.entry_invalid;
}
ConstExprValue *ptr_val = &op2_val->data.x_struct.fields[slice_ptr_index];
op2_array_val = ptr_val->data.x_ptr.base_ptr;
op2_array_index = ptr_val->data.x_ptr.index;
op2_array_end = op2_array_val->data.x_array.size;
assert(ptr_val->data.x_ptr.special == ConstPtrSpecialBaseArray);
op2_array_val = ptr_val->data.x_ptr.data.base_array.array_val;
op2_array_index = ptr_val->data.x_ptr.data.base_array.elem_index;
op2_array_end = op2_array_val->type->data.array.len;
} else {
ir_add_error(ira, op2,
buf_sprintf("expected array or C string literal, found '%s'", buf_ptr(&op2->value.type->name)));
@@ -7676,12 +7688,12 @@ static TypeTableEntry *ir_analyze_array_cat(IrAnalyze *ira, IrInstructionBinOp *
out_array_val = allocate<ConstExprValue>(1);
out_array_val->special = ConstValSpecialStatic;
out_array_val->type = get_array_type(ira->codegen, child_type, new_len);
out_val->data.x_ptr.base_ptr = out_array_val;
out_val->data.x_ptr.index = 0;
out_val->data.x_ptr.special = ConstPtrSpecialCStr;
out_val->data.x_ptr.special = ConstPtrSpecialBaseArray;
out_val->data.x_ptr.data.base_array.is_cstr = true;
out_val->data.x_ptr.data.base_array.array_val = out_array_val;
out_val->data.x_ptr.data.base_array.elem_index = 0;
}
out_array_val->data.x_array.elements = allocate<ConstExprValue>(new_len);
out_array_val->data.x_array.size = new_len;
size_t next_index = 0;
for (size_t i = op1_array_index; i < op1_array_end; i += 1, next_index += 1) {
@@ -7736,7 +7748,6 @@ static TypeTableEntry *ir_analyze_array_mult(IrAnalyze *ira, IrInstructionBinOp
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
uint64_t new_array_len = array_len.data.x_uint;
out_val->data.x_array.size = new_array_len;
out_val->data.x_array.elements = allocate<ConstExprValue>(new_array_len);
uint64_t i = 0;
@@ -8721,24 +8732,23 @@ static TypeTableEntry *ir_analyze_var_ptr(IrAnalyze *ira, IrInstruction *instruc
if (var->value.type->id == TypeTableEntryIdInvalid)
return var->value.type;
bool is_comptime = ir_get_var_is_comptime(var);
bool comptime_var_mem = ir_get_var_is_comptime(var);
ConstExprValue *mem_slot = nullptr;
FnTableEntry *fn_entry = scope_fn_entry(var->parent_scope);
if (var->src_is_const && var->value.special == ConstValSpecialStatic) {
if (var->value.special == ConstValSpecialStatic) {
mem_slot = &var->value;
assert(mem_slot->special != ConstValSpecialRuntime);
} else if (fn_entry) {
// TODO once the analyze code is fully ported over to IR we won't need this SIZE_MAX thing.
if (var->mem_slot_index != SIZE_MAX && (is_comptime || var->gen_is_const))
if (var->mem_slot_index != SIZE_MAX && (comptime_var_mem || var->gen_is_const))
mem_slot = &ira->exec_context.mem_slot_list[var->mem_slot_index];
}
bool is_const = (var->value.type->id == TypeTableEntryIdMetaType) ? is_const_ptr : var->src_is_const;
bool is_volatile = (var->value.type->id == TypeTableEntryIdMetaType) ? is_volatile_ptr : false;
if (mem_slot && mem_slot->special != ConstValSpecialRuntime) {
ConstPtrSpecial ptr_special = is_comptime ? ConstPtrSpecialInline : ConstPtrSpecialNone;
return ir_analyze_const_ptr(ira, instruction, mem_slot, var->value.type, ptr_special, is_const, is_volatile);
return ir_analyze_const_ptr(ira, instruction, mem_slot, var->value.type,
comptime_var_mem, is_const, is_volatile);
} else {
ir_build_var_ptr_from(&ira->new_irb, instruction, var, is_const, is_volatile);
type_ensure_zero_bits_known(ira->codegen, var->value.type);
@@ -8793,7 +8803,8 @@ static TypeTableEntry *ir_analyze_instruction_elem_ptr(IrAnalyze *ira, IrInstruc
buf_sprintf("index 0 outside array of size 0"));
}
TypeTableEntry *child_type = array_type->data.array.child_type;
return_type = get_pointer_to_type(ira->codegen, child_type, false);
return_type = get_pointer_to_type_volatile(ira->codegen, child_type,
ptr_type->data.pointer.is_const, ptr_type->data.pointer.is_volatile);
} else if (array_type->id == TypeTableEntryIdPointer) {
return_type = array_type;
} else if (is_slice(array_type)) {
@@ -8826,8 +8837,7 @@ static TypeTableEntry *ir_analyze_instruction_elem_ptr(IrAnalyze *ira, IrInstruc
is_const, is_volatile);
} else {
return ir_analyze_const_ptr(ira, &elem_ptr_instruction->base, &ira->codegen->const_void_val,
ira->codegen->builtin_types.entry_void, ConstPtrSpecialNone,
is_const, is_volatile);
ira->codegen->builtin_types.entry_void, false, is_const, is_volatile);
}
} else {
ir_add_error_node(ira, elem_ptr_instruction->base.source_node,
@@ -8858,30 +8868,54 @@ static TypeTableEntry *ir_analyze_instruction_elem_ptr(IrAnalyze *ira, IrInstruc
if (array_ptr->value.special != ConstValSpecialRuntime &&
(array_ptr_val = const_ptr_pointee(&array_ptr->value)) &&
array_ptr_val->special != ConstValSpecialRuntime &&
(array_type->id != TypeTableEntryIdPointer || array_ptr_val->data.x_ptr.special != ConstPtrSpecialRuntime))
(array_type->id != TypeTableEntryIdPointer ||
array_ptr_val->data.x_ptr.special != ConstPtrSpecialHardCodedAddr))
{
ConstExprValue *out_val = ir_build_const_from(ira, &elem_ptr_instruction->base);
out_val->data.x_ptr.comptime_var_mem = array_ptr->value.data.x_ptr.comptime_var_mem;
if (array_type->id == TypeTableEntryIdPointer) {
size_t offset = array_ptr_val->data.x_ptr.index;
size_t new_index;
size_t mem_size;
size_t old_size;
if (offset == SIZE_MAX) {
new_index = SIZE_MAX;
mem_size = 1;
old_size = 1;
} else {
new_index = offset + index;
mem_size = array_ptr_val->data.x_ptr.base_ptr->data.x_array.size;
old_size = mem_size - offset;
switch (array_ptr_val->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
mem_size = 1;
old_size = 1;
new_index = index;
out_val->data.x_ptr.special = ConstPtrSpecialRef;
out_val->data.x_ptr.data.ref.pointee = array_ptr_val->data.x_ptr.data.ref.pointee;
break;
case ConstPtrSpecialBaseArray:
{
size_t offset = array_ptr_val->data.x_ptr.data.base_array.elem_index;
new_index = offset + index;
mem_size = array_ptr_val->data.x_ptr.data.base_array.array_val->type->data.array.len;
old_size = mem_size - offset;
assert(array_ptr_val->data.x_ptr.data.base_array.array_val);
out_val->data.x_ptr.special = ConstPtrSpecialBaseArray;
out_val->data.x_ptr.data.base_array.array_val =
array_ptr_val->data.x_ptr.data.base_array.array_val;
out_val->data.x_ptr.data.base_array.elem_index = new_index;
out_val->data.x_ptr.data.base_array.is_cstr =
array_ptr_val->data.x_ptr.data.base_array.is_cstr;
break;
}
case ConstPtrSpecialBaseStruct:
zig_panic("TODO elem ptr on a const inner struct");
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
if (new_index >= mem_size) {
ir_add_error_node(ira, elem_ptr_instruction->base.source_node,
buf_sprintf("index %" PRIu64 " outside pointer of size %" PRIu64, index, old_size));
return ira->codegen->builtin_types.entry_invalid;
}
out_val->data.x_ptr.base_ptr = array_ptr_val->data.x_ptr.base_ptr;
out_val->data.x_ptr.index = new_index;
} else if (is_slice(array_type)) {
ConstExprValue *ptr_field = &array_ptr_val->data.x_struct.fields[slice_ptr_index];
ConstExprValue *len_field = &array_ptr_val->data.x_struct.fields[slice_len_index];
@@ -8892,18 +8926,35 @@ static TypeTableEntry *ir_analyze_instruction_elem_ptr(IrAnalyze *ira, IrInstruc
index, slice_len));
return ira->codegen->builtin_types.entry_invalid;
}
out_val->data.x_ptr.base_ptr = ptr_field->data.x_ptr.base_ptr;
size_t offset = ptr_field->data.x_ptr.index;
if (offset == SIZE_MAX) {
out_val->data.x_ptr.index = SIZE_MAX;
} else {
uint64_t new_index = offset + index;
assert(new_index < ptr_field->data.x_ptr.base_ptr->data.x_array.size);
out_val->data.x_ptr.index = new_index;
switch (ptr_field->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
out_val->data.x_ptr.special = ConstPtrSpecialRef;
out_val->data.x_ptr.data.ref.pointee = ptr_field->data.x_ptr.data.ref.pointee;
break;
case ConstPtrSpecialBaseArray:
{
size_t offset = ptr_field->data.x_ptr.data.base_array.elem_index;
uint64_t new_index = offset + index;
assert(new_index < ptr_field->data.x_ptr.data.base_array.array_val->type->data.array.len);
out_val->data.x_ptr.special = ConstPtrSpecialBaseArray;
out_val->data.x_ptr.data.base_array.array_val =
ptr_field->data.x_ptr.data.base_array.array_val;
out_val->data.x_ptr.data.base_array.elem_index = new_index;
out_val->data.x_ptr.data.base_array.is_cstr =
ptr_field->data.x_ptr.data.base_array.is_cstr;
break;
}
case ConstPtrSpecialBaseStruct:
zig_panic("TODO elem ptr on a slice backed by const inner struct");
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
} else if (array_type->id == TypeTableEntryIdArray) {
out_val->data.x_ptr.base_ptr = array_ptr_val;
out_val->data.x_ptr.index = index;
out_val->data.x_ptr.special = ConstPtrSpecialBaseArray;
out_val->data.x_ptr.data.base_array.array_val = array_ptr_val;
out_val->data.x_ptr.data.base_array.elem_index = index;
} else {
zig_unreachable();
}
@@ -8931,6 +8982,9 @@ static TypeTableEntry *ir_analyze_container_member_access_inner(IrAnalyze *ira,
return ira->codegen->builtin_types.entry_invalid;
TldFn *tld_fn = (TldFn *)tld;
FnTableEntry *fn_entry = tld_fn->fn_entry;
if (fn_entry->type_entry->id == TypeTableEntryIdInvalid)
return ira->codegen->builtin_types.entry_invalid;
IrInstruction *bound_fn_value = ir_build_const_bound_fn(&ira->new_irb, field_ptr_instruction->base.scope,
field_ptr_instruction->base.source_node, fn_entry, container_ptr);
return ir_analyze_ref(ira, &field_ptr_instruction->base, bound_fn_value, true, false);
@@ -8962,15 +9016,17 @@ static TypeTableEntry *ir_analyze_container_field_ptr(IrAnalyze *ira, Buf *field
if (!ptr_val)
return ira->codegen->builtin_types.entry_invalid;
if (ptr_val->data.x_ptr.special != ConstPtrSpecialRuntime) {
if (ptr_val->data.x_ptr.special != ConstPtrSpecialHardCodedAddr) {
ConstExprValue *struct_val = const_ptr_pointee(ptr_val);
if (value_is_comptime(struct_val)) {
ConstExprValue *field_val = &struct_val->data.x_struct.fields[field->src_index];
if (value_is_comptime(field_val)) {
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base, field_val,
field_val->type, ConstPtrSpecialNone, is_const, is_volatile);
}
}
ConstExprValue *field_val = &struct_val->data.x_struct.fields[field->src_index];
TypeTableEntry *ptr_type = get_pointer_to_type_volatile(ira->codegen, field_val->type,
is_const, is_volatile);
ConstExprValue *const_val = ir_build_const_from(ira, &field_ptr_instruction->base);
const_val->data.x_ptr.special = ConstPtrSpecialBaseStruct;
const_val->data.x_ptr.comptime_var_mem = container_ptr->value.data.x_ptr.comptime_var_mem;
const_val->data.x_ptr.data.base_struct.struct_val = struct_val;
const_val->data.x_ptr.data.base_struct.field_index = field->src_index;
return ptr_type;
}
}
ir_build_struct_field_ptr_from(&ira->new_irb, &field_ptr_instruction->base, container_ptr, field);
@@ -9032,7 +9088,7 @@ static TypeTableEntry *ir_analyze_decl_ref(IrAnalyze *ira, IrInstruction *source
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, source_instruction, const_val, fn_entry->type_entry,
ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
false, ptr_is_const, ptr_is_volatile);
}
case TldIdTypeDef:
{
@@ -9049,7 +9105,7 @@ static TypeTableEntry *ir_analyze_decl_ref(IrAnalyze *ira, IrInstruction *source
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, source_instruction, const_val, ira->codegen->builtin_types.entry_type,
ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
false, ptr_is_const, ptr_is_volatile);
}
}
zig_unreachable();
@@ -9092,7 +9148,7 @@ static TypeTableEntry *ir_analyze_instruction_field_ptr(IrAnalyze *ira, IrInstru
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base, len_val,
usize, ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
usize, false, ptr_is_const, ptr_is_volatile);
} else {
ir_add_error_node(ira, source_node,
buf_sprintf("no member named '%s' in '%s'", buf_ptr(field_name),
@@ -9116,7 +9172,7 @@ static TypeTableEntry *ir_analyze_instruction_field_ptr(IrAnalyze *ira, IrInstru
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base, len_val,
usize, ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
usize, false, ptr_is_const, ptr_is_volatile);
} else {
ir_add_error_node(ira, source_node,
buf_sprintf("no member named '%s' in '%s'", buf_ptr(field_name),
@@ -9155,14 +9211,14 @@ static TypeTableEntry *ir_analyze_instruction_field_ptr(IrAnalyze *ira, IrInstru
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base,
create_const_enum_tag(child_type, field->value), child_type,
ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
false, ptr_is_const, ptr_is_volatile);
} else {
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base,
create_const_unsigned_negative(child_type->data.enumeration.tag_type, field->value, false),
child_type->data.enumeration.tag_type,
ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
false, ptr_is_const, ptr_is_volatile);
}
}
}
@@ -9187,7 +9243,7 @@ static TypeTableEntry *ir_analyze_instruction_field_ptr(IrAnalyze *ira, IrInstru
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base, const_val,
child_type, ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
child_type, false, ptr_is_const, ptr_is_volatile);
}
ir_add_error(ira, &field_ptr_instruction->base,
@@ -9201,14 +9257,14 @@ static TypeTableEntry *ir_analyze_instruction_field_ptr(IrAnalyze *ira, IrInstru
create_const_unsigned_negative(ira->codegen->builtin_types.entry_num_lit_int,
child_type->data.integral.bit_count, false),
ira->codegen->builtin_types.entry_num_lit_int,
ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
false, ptr_is_const, ptr_is_volatile);
} else if (buf_eql_str(field_name, "is_signed")) {
bool ptr_is_const = true;
bool ptr_is_volatile = false;
return ir_analyze_const_ptr(ira, &field_ptr_instruction->base,
create_const_bool(ira->codegen, child_type->data.integral.is_signed),
ira->codegen->builtin_types.entry_bool,
ConstPtrSpecialNone, ptr_is_const, ptr_is_volatile);
false, ptr_is_const, ptr_is_volatile);
} else {
ir_add_error(ira, &field_ptr_instruction->base,
buf_sprintf("type '%s' has no member called '%s'",
@@ -9295,16 +9351,16 @@ static TypeTableEntry *ir_analyze_instruction_store_ptr(IrAnalyze *ira, IrInstru
if (casted_value == ira->codegen->invalid_instruction)
return ira->codegen->builtin_types.entry_invalid;
if (ptr->value.special != ConstValSpecialRuntime && ptr->value.data.x_ptr.special != ConstPtrSpecialRuntime) {
bool is_inline = (ptr->value.data.x_ptr.special == ConstPtrSpecialInline);
if (casted_value->value.special != ConstValSpecialRuntime) {
ConstExprValue *dest_val = const_ptr_pointee(&ptr->value);
if (dest_val->special != ConstValSpecialRuntime) {
*dest_val = casted_value->value;
return ir_analyze_void(ira, &store_ptr_instruction->base);
if (instr_is_comptime(ptr) && ptr->value.data.x_ptr.special != ConstPtrSpecialHardCodedAddr) {
bool comptime_var_mem = ptr->value.data.x_ptr.comptime_var_mem;
if (comptime_var_mem) {
if (instr_is_comptime(casted_value)) {
ConstExprValue *dest_val = const_ptr_pointee(&ptr->value);
if (dest_val->special != ConstValSpecialRuntime) {
*dest_val = casted_value->value;
return ir_analyze_void(ira, &store_ptr_instruction->base);
}
}
}
if (is_inline) {
ir_add_error(ira, &store_ptr_instruction->base,
buf_sprintf("cannot store runtime value in compile time variable"));
return ira->codegen->builtin_types.entry_invalid;
@@ -9906,14 +9962,15 @@ static TypeTableEntry *ir_analyze_instruction_unwrap_maybe(IrAnalyze *ira,
return ira->codegen->builtin_types.entry_invalid;
}
TypeTableEntry *child_type = type_entry->data.maybe.child_type;
TypeTableEntry *result_type = get_pointer_to_type(ira->codegen, child_type, false);
TypeTableEntry *result_type = get_pointer_to_type_volatile(ira->codegen, child_type,
ptr_type->data.pointer.is_const, ptr_type->data.pointer.is_volatile);
if (instr_is_comptime(value)) {
ConstExprValue *val = ir_resolve_const(ira, value, UndefBad);
if (!val)
return ira->codegen->builtin_types.entry_invalid;
ConstExprValue *maybe_val = val->data.x_ptr.base_ptr;
assert(val->data.x_ptr.index == SIZE_MAX);
assert(val->data.x_ptr.special == ConstPtrSpecialRef);
ConstExprValue *maybe_val = val->data.x_ptr.data.ref.pointee;
if (maybe_val->special != ConstValSpecialRuntime) {
if (!maybe_val->data.x_maybe) {
@@ -9921,8 +9978,8 @@ static TypeTableEntry *ir_analyze_instruction_unwrap_maybe(IrAnalyze *ira,
return ira->codegen->builtin_types.entry_invalid;
}
ConstExprValue *out_val = ir_build_const_from(ira, &unwrap_maybe_instruction->base);
out_val->data.x_ptr.base_ptr = maybe_val->data.x_maybe;
out_val->data.x_ptr.index = SIZE_MAX;
out_val->data.x_ptr.special = ConstPtrSpecialRef;
out_val->data.x_ptr.data.ref.pointee = maybe_val->data.x_maybe;
return result_type;
}
}
@@ -10215,9 +10272,10 @@ static TypeTableEntry *ir_analyze_instruction_switch_var(IrAnalyze *ira, IrInstr
ConstExprValue *pointee_val = const_ptr_pointee(target_val_ptr);
if (pointee_val->type->id == TypeTableEntryIdEnum) {
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->data.x_ptr.base_ptr = pointee_val->data.x_enum.payload;
out_val->data.x_ptr.index = SIZE_MAX;
return get_pointer_to_type(ira->codegen, pointee_val->type, target_value_ptr->value.type->data.pointer.is_const);
out_val->data.x_ptr.special = ConstPtrSpecialRef;
out_val->data.x_ptr.data.ref.pointee = pointee_val->data.x_enum.payload;
return get_pointer_to_type(ira->codegen, pointee_val->type,
target_value_ptr->value.type->data.pointer.is_const);
} else {
zig_panic("TODO comptime switch var");
}
@@ -10501,7 +10559,6 @@ static TypeTableEntry *ir_analyze_instruction_container_init_list(IrAnalyze *ira
const_val.special = ConstValSpecialStatic;
const_val.type = fixed_size_array_type;
const_val.data.x_array.elements = allocate<ConstExprValue>(elem_count);
const_val.data.x_array.size = elem_count;
bool is_comptime = ir_should_inline(ira->new_irb.exec, instruction->base.scope);
@@ -10540,8 +10597,9 @@ static TypeTableEntry *ir_analyze_instruction_container_init_list(IrAnalyze *ira
for (size_t i = 0; i < elem_count; i += 1) {
ConstExprValue *elem_val = &out_val->data.x_array.elements[i];
if (elem_val->type->id == TypeTableEntryIdArray) {
elem_val->data.x_array.parent_array = out_val;
elem_val->data.x_array.parent_array_index = i;
elem_val->data.x_array.parent.id = ConstParentIdArray;
elem_val->data.x_array.parent.data.p_array.array_val = out_val;
elem_val->data.x_array.parent.data.p_array.elem_index = i;
}
}
return fixed_size_array_type;
@@ -11227,22 +11285,34 @@ static TypeTableEntry *ir_analyze_instruction_memset(IrAnalyze *ira, IrInstructi
if (casted_dest_ptr->value.special == ConstValSpecialStatic &&
casted_byte->value.special == ConstValSpecialStatic &&
casted_count->value.special == ConstValSpecialStatic)
casted_count->value.special == ConstValSpecialStatic &&
casted_dest_ptr->value.data.x_ptr.special != ConstPtrSpecialHardCodedAddr)
{
ConstExprValue *dest_ptr_val = &casted_dest_ptr->value;
ConstExprValue *dest_elements;
size_t start;
size_t bound_end;
if (dest_ptr_val->data.x_ptr.index == SIZE_MAX) {
dest_elements = dest_ptr_val->data.x_ptr.base_ptr;
start = 0;
bound_end = 1;
} else {
ConstExprValue *array_val = dest_ptr_val->data.x_ptr.base_ptr;
dest_elements = array_val->data.x_array.elements;
start = dest_ptr_val->data.x_ptr.index;
bound_end = array_val->data.x_array.size;
switch (dest_ptr_val->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
dest_elements = dest_ptr_val->data.x_ptr.data.ref.pointee;
start = 0;
bound_end = 1;
break;
case ConstPtrSpecialBaseArray:
{
ConstExprValue *array_val = dest_ptr_val->data.x_ptr.data.base_array.array_val;
dest_elements = array_val->data.x_array.elements;
start = dest_ptr_val->data.x_ptr.data.base_array.elem_index;
bound_end = array_val->type->data.array.len;
break;
}
case ConstPtrSpecialBaseStruct:
zig_panic("TODO memset on const inner struct");
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
size_t count = casted_count->value.data.x_bignum.data.x_uint;
@@ -11304,7 +11374,8 @@ static TypeTableEntry *ir_analyze_instruction_memcpy(IrAnalyze *ira, IrInstructi
if (casted_dest_ptr->value.special == ConstValSpecialStatic &&
casted_src_ptr->value.special == ConstValSpecialStatic &&
casted_count->value.special == ConstValSpecialStatic)
casted_count->value.special == ConstValSpecialStatic &&
casted_dest_ptr->value.data.x_ptr.special != ConstPtrSpecialHardCodedAddr)
{
size_t count = casted_count->value.data.x_bignum.data.x_uint;
@@ -11312,15 +11383,26 @@ static TypeTableEntry *ir_analyze_instruction_memcpy(IrAnalyze *ira, IrInstructi
ConstExprValue *dest_elements;
size_t dest_start;
size_t dest_end;
if (dest_ptr_val->data.x_ptr.index == SIZE_MAX) {
dest_elements = dest_ptr_val->data.x_ptr.base_ptr;
dest_start = 0;
dest_end = 1;
} else {
ConstExprValue *array_val = dest_ptr_val->data.x_ptr.base_ptr;
dest_elements = array_val->data.x_array.elements;
dest_start = dest_ptr_val->data.x_ptr.index;
dest_end = array_val->data.x_array.size;
switch (dest_ptr_val->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
dest_elements = dest_ptr_val->data.x_ptr.data.ref.pointee;
dest_start = 0;
dest_end = 1;
break;
case ConstPtrSpecialBaseArray:
{
ConstExprValue *array_val = dest_ptr_val->data.x_ptr.data.base_array.array_val;
dest_elements = array_val->data.x_array.elements;
dest_start = dest_ptr_val->data.x_ptr.data.base_array.elem_index;
dest_end = array_val->type->data.array.len;
break;
}
case ConstPtrSpecialBaseStruct:
zig_panic("TODO memcpy on const inner struct");
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
if (dest_start + count > dest_end) {
@@ -11332,15 +11414,27 @@ static TypeTableEntry *ir_analyze_instruction_memcpy(IrAnalyze *ira, IrInstructi
ConstExprValue *src_elements;
size_t src_start;
size_t src_end;
if (src_ptr_val->data.x_ptr.index == SIZE_MAX) {
src_elements = src_ptr_val->data.x_ptr.base_ptr;
src_start = 0;
src_end = 1;
} else {
ConstExprValue *array_val = src_ptr_val->data.x_ptr.base_ptr;
src_elements = array_val->data.x_array.elements;
src_start = src_ptr_val->data.x_ptr.index;
src_end = array_val->data.x_array.size;
switch (src_ptr_val->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
src_elements = src_ptr_val->data.x_ptr.data.ref.pointee;
src_start = 0;
src_end = 1;
break;
case ConstPtrSpecialBaseArray:
{
ConstExprValue *array_val = src_ptr_val->data.x_ptr.data.base_array.array_val;
src_elements = array_val->data.x_array.elements;
src_start = src_ptr_val->data.x_ptr.data.base_array.elem_index;
src_end = array_val->type->data.array.len;
break;
}
case ConstPtrSpecialBaseStruct:
zig_panic("TODO memcpy on const inner struct");
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
if (src_start + count > src_end) {
@@ -11415,68 +11509,115 @@ static TypeTableEntry *ir_analyze_instruction_slice(IrAnalyze *ira, IrInstructio
casted_start->value.special == ConstValSpecialStatic &&
(!end || end->value.special == ConstValSpecialStatic))
{
ConstExprValue *base_ptr;
ConstExprValue *array_val;
ConstExprValue *parent_ptr;
size_t abs_offset;
size_t rel_end;
if (array_type->id == TypeTableEntryIdArray) {
base_ptr = &ptr->value;
array_val = &ptr->value;
abs_offset = 0;
rel_end = array_type->data.array.len;
parent_ptr = nullptr;
} else if (array_type->id == TypeTableEntryIdPointer) {
base_ptr = ptr->value.data.x_ptr.base_ptr;
abs_offset = ptr->value.data.x_ptr.index;
if (abs_offset == SIZE_MAX) {
rel_end = 1;
} else {
rel_end = base_ptr->data.x_array.size - abs_offset;
parent_ptr = &ptr->value;
switch (parent_ptr->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
array_val = nullptr;
abs_offset = SIZE_MAX;
rel_end = 1;
break;
case ConstPtrSpecialBaseArray:
array_val = parent_ptr->data.x_ptr.data.base_array.array_val;
abs_offset = parent_ptr->data.x_ptr.data.base_array.elem_index;
rel_end = array_val->type->data.array.len - abs_offset;
break;
case ConstPtrSpecialBaseStruct:
zig_panic("TODO slice const inner struct");
case ConstPtrSpecialHardCodedAddr:
array_val = nullptr;
break;
}
} else if (is_slice(array_type)) {
ConstExprValue *ptr_val = &ptr->value.data.x_struct.fields[slice_ptr_index];
parent_ptr = &ptr->value.data.x_struct.fields[slice_ptr_index];
ConstExprValue *len_val = &ptr->value.data.x_struct.fields[slice_len_index];
base_ptr = ptr_val->data.x_ptr.base_ptr;
abs_offset = ptr_val->data.x_ptr.index;
if (ptr_val->data.x_ptr.index == SIZE_MAX) {
rel_end = 1;
} else {
rel_end = len_val->data.x_bignum.data.x_uint;
switch (parent_ptr->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
array_val = nullptr;
abs_offset = SIZE_MAX;
rel_end = 1;
break;
case ConstPtrSpecialBaseArray:
array_val = parent_ptr->data.x_ptr.data.base_array.array_val;
abs_offset = parent_ptr->data.x_ptr.data.base_array.elem_index;
rel_end = len_val->data.x_bignum.data.x_uint;
break;
case ConstPtrSpecialBaseStruct:
zig_panic("TODO slice const inner struct");
case ConstPtrSpecialHardCodedAddr:
array_val = nullptr;
break;
}
} else {
zig_unreachable();
}
uint64_t start_scalar = casted_start->value.data.x_bignum.data.x_uint;
if (start_scalar > rel_end) {
ir_add_error(ira, &instruction->base, buf_sprintf("out of bounds slice"));
return ira->codegen->builtin_types.entry_invalid;
if (array_val || parent_ptr->data.x_ptr.special != ConstPtrSpecialHardCodedAddr) {
uint64_t start_scalar = casted_start->value.data.x_bignum.data.x_uint;
if (start_scalar > rel_end) {
ir_add_error(ira, &instruction->base, buf_sprintf("out of bounds slice"));
return ira->codegen->builtin_types.entry_invalid;
}
uint64_t end_scalar;
if (end) {
end_scalar = end->value.data.x_bignum.data.x_uint;
} else {
end_scalar = rel_end;
}
if (end_scalar > rel_end) {
ir_add_error(ira, &instruction->base, buf_sprintf("out of bounds slice"));
return ira->codegen->builtin_types.entry_invalid;
}
if (start_scalar > end_scalar) {
ir_add_error(ira, &instruction->base, buf_sprintf("slice start is greater than end"));
return ira->codegen->builtin_types.entry_invalid;
}
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->data.x_struct.fields = allocate<ConstExprValue>(2);
ConstExprValue *ptr_val = &out_val->data.x_struct.fields[slice_ptr_index];
if (array_val) {
size_t index = abs_offset + start_scalar;
init_const_ptr_array(ira->codegen, ptr_val, array_val, index, instruction->is_const);
} else {
switch (parent_ptr->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();
case ConstPtrSpecialRef:
init_const_ptr_ref(ira->codegen, ptr_val,
parent_ptr->data.x_ptr.data.ref.pointee, instruction->is_const);
break;
case ConstPtrSpecialBaseArray:
zig_unreachable();
case ConstPtrSpecialBaseStruct:
zig_panic("TODO");
case ConstPtrSpecialHardCodedAddr:
zig_unreachable();
}
}
ConstExprValue *len_val = &out_val->data.x_struct.fields[slice_len_index];
init_const_usize(ira->codegen, len_val, end_scalar - start_scalar);
return return_type;
}
uint64_t end_scalar;
if (end) {
end_scalar = end->value.data.x_bignum.data.x_uint;
} else {
end_scalar = rel_end;
}
if (end_scalar > rel_end) {
ir_add_error(ira, &instruction->base, buf_sprintf("out of bounds slice"));
return ira->codegen->builtin_types.entry_invalid;
}
if (start_scalar > end_scalar) {
ir_add_error(ira, &instruction->base, buf_sprintf("slice start is greater than end"));
return ira->codegen->builtin_types.entry_invalid;
}
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->data.x_struct.fields = allocate<ConstExprValue>(2);
ConstExprValue *ptr_val = &out_val->data.x_struct.fields[slice_ptr_index];
size_t index = (abs_offset != SIZE_MAX) ? (abs_offset + start_scalar) : SIZE_MAX;
init_const_ptr(ira->codegen, ptr_val, base_ptr, index, instruction->is_const);
ConstExprValue *len_val = &out_val->data.x_struct.fields[slice_len_index];
init_const_usize(ira->codegen, len_val, end_scalar - start_scalar);
return return_type;
}
IrInstruction *new_instruction = ir_build_slice_from(&ira->new_irb, &instruction->base, ptr,
@@ -11688,8 +11829,7 @@ static TypeTableEntry *ir_analyze_instruction_unwrap_err_code(IrAnalyze *ira,
ConstExprValue *ptr_val = ir_resolve_const(ira, value, UndefBad);
if (!ptr_val)
return ira->codegen->builtin_types.entry_invalid;
ConstExprValue *err_union_val = ptr_val->data.x_ptr.base_ptr;
assert(ptr_val->data.x_ptr.index == SIZE_MAX);
ConstExprValue *err_union_val = const_ptr_pointee(ptr_val);
if (err_union_val->special != ConstValSpecialRuntime) {
ErrorTableEntry *err = err_union_val->data.x_err_union.err;
assert(err);
@@ -11728,13 +11868,13 @@ static TypeTableEntry *ir_analyze_instruction_unwrap_err_payload(IrAnalyze *ira,
return ira->codegen->builtin_types.entry_invalid;
} else if (canon_type->id == TypeTableEntryIdErrorUnion) {
TypeTableEntry *child_type = canon_type->data.error.child_type;
TypeTableEntry *result_type = get_pointer_to_type(ira->codegen, child_type, false);
TypeTableEntry *result_type = get_pointer_to_type_volatile(ira->codegen, child_type,
ptr_type->data.pointer.is_const, ptr_type->data.pointer.is_volatile);
if (instr_is_comptime(value)) {
ConstExprValue *ptr_val = ir_resolve_const(ira, value, UndefBad);
if (!ptr_val)
return ira->codegen->builtin_types.entry_invalid;
ConstExprValue *err_union_val = ptr_val->data.x_ptr.base_ptr;
assert(ptr_val->data.x_ptr.index == SIZE_MAX);
ConstExprValue *err_union_val = const_ptr_pointee(ptr_val);
if (err_union_val->special != ConstValSpecialRuntime) {
ErrorTableEntry *err = err_union_val->data.x_err_union.err;
if (err != nullptr) {
@@ -11744,8 +11884,8 @@ static TypeTableEntry *ir_analyze_instruction_unwrap_err_payload(IrAnalyze *ira,
}
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->data.x_ptr.base_ptr = err_union_val->data.x_err_union.payload;
out_val->data.x_ptr.index = SIZE_MAX;
out_val->data.x_ptr.special = ConstPtrSpecialRef;
out_val->data.x_ptr.data.ref.pointee = err_union_val->data.x_err_union.payload;
return result_type;
}
}