blob: 7935ad33138dc47758a4fe33b76dda15b177121f [file] [log] [blame]
// Copyright (c) 2016 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "source/opt/type_manager.h"
#include <algorithm>
#include <cassert>
#include <cstring>
#include <utility>
#include "source/opt/ir_context.h"
#include "source/opt/log.h"
#include "source/opt/reflect.h"
#include "source/util/make_unique.h"
namespace spvtools {
namespace opt {
namespace analysis {
namespace {
const int kSpvTypePointerStorageClass = 1;
const int kSpvTypePointerTypeIdInIdx = 2;
} // namespace
TypeManager::TypeManager(const MessageConsumer& consumer, IRContext* c)
: consumer_(consumer), context_(c) {
AnalyzeTypes(*c->module());
}
Type* TypeManager::GetType(uint32_t id) const {
auto iter = id_to_type_.find(id);
if (iter != id_to_type_.end()) return (*iter).second;
iter = id_to_incomplete_type_.find(id);
if (iter != id_to_incomplete_type_.end()) return (*iter).second;
return nullptr;
}
std::pair<Type*, std::unique_ptr<Pointer>> TypeManager::GetTypeAndPointerType(
uint32_t id, SpvStorageClass sc) const {
Type* type = GetType(id);
if (type) {
return std::make_pair(type, MakeUnique<Pointer>(type, sc));
} else {
return std::make_pair(type, std::unique_ptr<Pointer>());
}
}
uint32_t TypeManager::GetId(const Type* type) const {
auto iter = type_to_id_.find(type);
if (iter != type_to_id_.end()) {
return (*iter).second;
}
return 0;
}
void TypeManager::AnalyzeTypes(const Module& module) {
// First pass through the constants, as some will be needed when traversing
// the types in the next pass.
for (const auto* inst : module.GetConstants()) {
id_to_constant_inst_[inst->result_id()] = inst;
}
// Then pass through the types. Any types that reference a forward pointer
// (directly or indirectly) are incomplete, and are added to incomplete types.
for (const auto* inst : module.GetTypes()) {
RecordIfTypeDefinition(*inst);
}
if (incomplete_types_.empty()) {
return;
}
// Get the real pointer definition for all of the forward pointers.
for (auto& type : incomplete_types_) {
if (type.type()->kind() == Type::kForwardPointer) {
auto* t = GetType(type.id());
assert(t);
auto* p = t->AsPointer();
assert(p);
type.type()->AsForwardPointer()->SetTargetPointer(p);
}
}
// Replaces the references to the forward pointers in the incomplete types.
for (auto& type : incomplete_types_) {
ReplaceForwardPointers(type.type());
}
// Delete the forward pointers now that they are not referenced anymore.
for (auto& type : incomplete_types_) {
if (type.type()->kind() == Type::kForwardPointer) {
type.ResetType(nullptr);
}
}
// Compare the complete types looking for types that are the same. If there
// are two types that are the same, then replace one with the other.
// Continue until we reach a fixed point.
bool restart = true;
while (restart) {
restart = false;
for (auto it1 = incomplete_types_.begin(); it1 != incomplete_types_.end();
++it1) {
uint32_t id1 = it1->id();
Type* type1 = it1->type();
if (!type1) {
continue;
}
for (auto it2 = it1 + 1; it2 != incomplete_types_.end(); ++it2) {
uint32_t id2 = it2->id();
(void)(id2 + id1);
Type* type2 = it2->type();
if (!type2) {
continue;
}
if (type1->IsSame(type2)) {
ReplaceType(type1, type2);
it2->ResetType(nullptr);
id_to_incomplete_type_[it2->id()] = type1;
restart = true;
}
}
}
}
// Add the remaining incomplete types to the type pool.
for (auto& type : incomplete_types_) {
if (type.type() && !type.type()->AsForwardPointer()) {
std::vector<Instruction*> decorations =
context()->get_decoration_mgr()->GetDecorationsFor(type.id(), true);
for (auto dec : decorations) {
AttachDecoration(*dec, type.type());
}
auto pair = type_pool_.insert(type.ReleaseType());
id_to_type_[type.id()] = pair.first->get();
type_to_id_[pair.first->get()] = type.id();
id_to_incomplete_type_.erase(type.id());
}
}
// Add a mapping for any ids that whose original type was replaced by an
// equivalent type.
for (auto& type : id_to_incomplete_type_) {
id_to_type_[type.first] = type.second;
}
#ifndef NDEBUG
// Check if the type pool contains two types that are the same. This
// is an indication that the hashing and comparison are wrong. It
// will cause a problem if the type pool gets resized and everything
// is rehashed.
for (auto& i : type_pool_) {
for (auto& j : type_pool_) {
Type* ti = i.get();
Type* tj = j.get();
assert((ti == tj || !ti->IsSame(tj)) &&
"Type pool contains two types that are the same.");
}
}
#endif
}
void TypeManager::RemoveId(uint32_t id) {
auto iter = id_to_type_.find(id);
if (iter == id_to_type_.end()) return;
auto& type = iter->second;
if (!type->IsUniqueType(true)) {
auto tIter = type_to_id_.find(type);
if (tIter != type_to_id_.end() && tIter->second == id) {
// |type| currently maps to |id|.
// Search for an equivalent type to re-map.
bool found = false;
for (auto& pair : id_to_type_) {
if (pair.first != id && *pair.second == *type) {
// Equivalent ambiguous type, re-map type.
type_to_id_.erase(type);
type_to_id_[pair.second] = pair.first;
found = true;
break;
}
}
// No equivalent ambiguous type, remove mapping.
if (!found) type_to_id_.erase(tIter);
}
} else {
// Unique type, so just erase the entry.
type_to_id_.erase(type);
}
// Erase the entry for |id|.
id_to_type_.erase(iter);
}
uint32_t TypeManager::GetTypeInstruction(const Type* type) {
uint32_t id = GetId(type);
if (id != 0) return id;
std::unique_ptr<Instruction> typeInst;
// TODO(1841): Handle id overflow.
id = context()->TakeNextId();
if (id == 0) {
return 0;
}
RegisterType(id, *type);
switch (type->kind()) {
#define DefineParameterlessCase(kind) \
case Type::k##kind: \
typeInst = MakeUnique<Instruction>(context(), SpvOpType##kind, 0, id, \
std::initializer_list<Operand>{}); \
break
DefineParameterlessCase(Void);
DefineParameterlessCase(Bool);
DefineParameterlessCase(Sampler);
DefineParameterlessCase(Event);
DefineParameterlessCase(DeviceEvent);
DefineParameterlessCase(ReserveId);
DefineParameterlessCase(Queue);
DefineParameterlessCase(PipeStorage);
DefineParameterlessCase(NamedBarrier);
DefineParameterlessCase(AccelerationStructureNV);
#undef DefineParameterlessCase
case Type::kInteger:
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeInt, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_LITERAL_INTEGER, {type->AsInteger()->width()}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER,
{(type->AsInteger()->IsSigned() ? 1u : 0u)}}});
break;
case Type::kFloat:
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeFloat, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_LITERAL_INTEGER, {type->AsFloat()->width()}}});
break;
case Type::kVector: {
uint32_t subtype = GetTypeInstruction(type->AsVector()->element_type());
if (subtype == 0) {
return 0;
}
typeInst =
MakeUnique<Instruction>(context(), SpvOpTypeVector, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ID, {subtype}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER,
{type->AsVector()->element_count()}}});
break;
}
case Type::kMatrix: {
uint32_t subtype = GetTypeInstruction(type->AsMatrix()->element_type());
if (subtype == 0) {
return 0;
}
typeInst =
MakeUnique<Instruction>(context(), SpvOpTypeMatrix, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ID, {subtype}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER,
{type->AsMatrix()->element_count()}}});
break;
}
case Type::kImage: {
const Image* image = type->AsImage();
uint32_t subtype = GetTypeInstruction(image->sampled_type());
if (subtype == 0) {
return 0;
}
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeImage, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ID, {subtype}},
{SPV_OPERAND_TYPE_DIMENSIONALITY,
{static_cast<uint32_t>(image->dim())}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER, {image->depth()}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER,
{(image->is_arrayed() ? 1u : 0u)}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER,
{(image->is_multisampled() ? 1u : 0u)}},
{SPV_OPERAND_TYPE_LITERAL_INTEGER, {image->sampled()}},
{SPV_OPERAND_TYPE_SAMPLER_IMAGE_FORMAT,
{static_cast<uint32_t>(image->format())}},
{SPV_OPERAND_TYPE_ACCESS_QUALIFIER,
{static_cast<uint32_t>(image->access_qualifier())}}});
break;
}
case Type::kSampledImage: {
uint32_t subtype =
GetTypeInstruction(type->AsSampledImage()->image_type());
if (subtype == 0) {
return 0;
}
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeSampledImage, 0, id,
std::initializer_list<Operand>{{SPV_OPERAND_TYPE_ID, {subtype}}});
break;
}
case Type::kArray: {
uint32_t subtype = GetTypeInstruction(type->AsArray()->element_type());
if (subtype == 0) {
return 0;
}
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeArray, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ID, {subtype}},
{SPV_OPERAND_TYPE_ID, {type->AsArray()->LengthId()}}});
break;
}
case Type::kRuntimeArray: {
uint32_t subtype =
GetTypeInstruction(type->AsRuntimeArray()->element_type());
if (subtype == 0) {
return 0;
}
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeRuntimeArray, 0, id,
std::initializer_list<Operand>{{SPV_OPERAND_TYPE_ID, {subtype}}});
break;
}
case Type::kStruct: {
std::vector<Operand> ops;
const Struct* structTy = type->AsStruct();
for (auto ty : structTy->element_types()) {
uint32_t member_type_id = GetTypeInstruction(ty);
if (member_type_id == 0) {
return 0;
}
ops.push_back(Operand(SPV_OPERAND_TYPE_ID, {member_type_id}));
}
typeInst =
MakeUnique<Instruction>(context(), SpvOpTypeStruct, 0, id, ops);
break;
}
case Type::kOpaque: {
const Opaque* opaque = type->AsOpaque();
size_t size = opaque->name().size();
// Convert to null-terminated packed UTF-8 string.
std::vector<uint32_t> words(size / 4 + 1, 0);
char* dst = reinterpret_cast<char*>(words.data());
strncpy(dst, opaque->name().c_str(), size);
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeOpaque, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_LITERAL_STRING, words}});
break;
}
case Type::kPointer: {
const Pointer* pointer = type->AsPointer();
uint32_t subtype = GetTypeInstruction(pointer->pointee_type());
if (subtype == 0) {
return 0;
}
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypePointer, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_STORAGE_CLASS,
{static_cast<uint32_t>(pointer->storage_class())}},
{SPV_OPERAND_TYPE_ID, {subtype}}});
break;
}
case Type::kFunction: {
std::vector<Operand> ops;
const Function* function = type->AsFunction();
uint32_t return_type_id = GetTypeInstruction(function->return_type());
if (return_type_id == 0) {
return 0;
}
ops.push_back(Operand(SPV_OPERAND_TYPE_ID, {return_type_id}));
for (auto ty : function->param_types()) {
uint32_t paramater_type_id = GetTypeInstruction(ty);
if (paramater_type_id == 0) {
return 0;
}
ops.push_back(Operand(SPV_OPERAND_TYPE_ID, {paramater_type_id}));
}
typeInst =
MakeUnique<Instruction>(context(), SpvOpTypeFunction, 0, id, ops);
break;
}
case Type::kPipe:
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypePipe, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ACCESS_QUALIFIER,
{static_cast<uint32_t>(type->AsPipe()->access_qualifier())}}});
break;
case Type::kForwardPointer:
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeForwardPointer, 0, 0,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ID, {type->AsForwardPointer()->target_id()}},
{SPV_OPERAND_TYPE_STORAGE_CLASS,
{static_cast<uint32_t>(
type->AsForwardPointer()->storage_class())}}});
break;
case Type::kCooperativeMatrixNV: {
auto coop_mat = type->AsCooperativeMatrixNV();
uint32_t const component_type =
GetTypeInstruction(coop_mat->component_type());
if (component_type == 0) {
return 0;
}
typeInst = MakeUnique<Instruction>(
context(), SpvOpTypeCooperativeMatrixNV, 0, id,
std::initializer_list<Operand>{
{SPV_OPERAND_TYPE_ID, {component_type}},
{SPV_OPERAND_TYPE_SCOPE_ID, {coop_mat->scope_id()}},
{SPV_OPERAND_TYPE_ID, {coop_mat->rows_id()}},
{SPV_OPERAND_TYPE_ID, {coop_mat->columns_id()}}});
break;
}
default:
assert(false && "Unexpected type");
break;
}
context()->AddType(std::move(typeInst));
context()->AnalyzeDefUse(&*--context()->types_values_end());
AttachDecorations(id, type);
return id;
}
uint32_t TypeManager::FindPointerToType(uint32_t type_id,
SpvStorageClass storage_class) {
Type* pointeeTy = GetType(type_id);
Pointer pointerTy(pointeeTy, storage_class);
if (pointeeTy->IsUniqueType(true)) {
// Non-ambiguous type. Get the pointer type through the type manager.
return GetTypeInstruction(&pointerTy);
}
// Ambiguous type, do a linear search.
Module::inst_iterator type_itr = context()->module()->types_values_begin();
for (; type_itr != context()->module()->types_values_end(); ++type_itr) {
const Instruction* type_inst = &*type_itr;
if (type_inst->opcode() == SpvOpTypePointer &&
type_inst->GetSingleWordOperand(kSpvTypePointerTypeIdInIdx) ==
type_id &&
type_inst->GetSingleWordOperand(kSpvTypePointerStorageClass) ==
storage_class)
return type_inst->result_id();
}
// Must create the pointer type.
// TODO(1841): Handle id overflow.
uint32_t resultId = context()->TakeNextId();
std::unique_ptr<Instruction> type_inst(
new Instruction(context(), SpvOpTypePointer, 0, resultId,
{{spv_operand_type_t::SPV_OPERAND_TYPE_STORAGE_CLASS,
{uint32_t(storage_class)}},
{spv_operand_type_t::SPV_OPERAND_TYPE_ID, {type_id}}}));
context()->AddType(std::move(type_inst));
context()->get_type_mgr()->RegisterType(resultId, pointerTy);
return resultId;
}
void TypeManager::AttachDecorations(uint32_t id, const Type* type) {
for (auto vec : type->decorations()) {
CreateDecoration(id, vec);
}
if (const Struct* structTy = type->AsStruct()) {
for (auto pair : structTy->element_decorations()) {
uint32_t element = pair.first;
for (auto vec : pair.second) {
CreateDecoration(id, vec, element);
}
}
}
}
void TypeManager::CreateDecoration(uint32_t target,
const std::vector<uint32_t>& decoration,
uint32_t element) {
std::vector<Operand> ops;
ops.push_back(Operand(SPV_OPERAND_TYPE_ID, {target}));
if (element != 0) {
ops.push_back(Operand(SPV_OPERAND_TYPE_LITERAL_INTEGER, {element}));
}
ops.push_back(Operand(SPV_OPERAND_TYPE_DECORATION, {decoration[0]}));
for (size_t i = 1; i < decoration.size(); ++i) {
ops.push_back(Operand(SPV_OPERAND_TYPE_LITERAL_INTEGER, {decoration[i]}));
}
context()->AddAnnotationInst(MakeUnique<Instruction>(
context(), (element == 0 ? SpvOpDecorate : SpvOpMemberDecorate), 0, 0,
ops));
Instruction* inst = &*--context()->annotation_end();
context()->get_def_use_mgr()->AnalyzeInstUse(inst);
}
Type* TypeManager::RebuildType(const Type& type) {
// The comparison and hash on the type pool will avoid inserting the rebuilt
// type if an equivalent type already exists. The rebuilt type will be deleted
// when it goes out of scope at the end of the function in that case. Repeated
// insertions of the same Type will, at most, keep one corresponding object in
// the type pool.
std::unique_ptr<Type> rebuilt_ty;
switch (type.kind()) {
#define DefineNoSubtypeCase(kind) \
case Type::k##kind: \
rebuilt_ty.reset(type.Clone().release()); \
return type_pool_.insert(std::move(rebuilt_ty)).first->get()
DefineNoSubtypeCase(Void);
DefineNoSubtypeCase(Bool);
DefineNoSubtypeCase(Integer);
DefineNoSubtypeCase(Float);
DefineNoSubtypeCase(Sampler);
DefineNoSubtypeCase(Opaque);
DefineNoSubtypeCase(Event);
DefineNoSubtypeCase(DeviceEvent);
DefineNoSubtypeCase(ReserveId);
DefineNoSubtypeCase(Queue);
DefineNoSubtypeCase(Pipe);
DefineNoSubtypeCase(PipeStorage);
DefineNoSubtypeCase(NamedBarrier);
DefineNoSubtypeCase(AccelerationStructureNV);
#undef DefineNoSubtypeCase
case Type::kVector: {
const Vector* vec_ty = type.AsVector();
const Type* ele_ty = vec_ty->element_type();
rebuilt_ty =
MakeUnique<Vector>(RebuildType(*ele_ty), vec_ty->element_count());
break;
}
case Type::kMatrix: {
const Matrix* mat_ty = type.AsMatrix();
const Type* ele_ty = mat_ty->element_type();
rebuilt_ty =
MakeUnique<Matrix>(RebuildType(*ele_ty), mat_ty->element_count());
break;
}
case Type::kImage: {
const Image* image_ty = type.AsImage();
const Type* ele_ty = image_ty->sampled_type();
rebuilt_ty =
MakeUnique<Image>(RebuildType(*ele_ty), image_ty->dim(),
image_ty->depth(), image_ty->is_arrayed(),
image_ty->is_multisampled(), image_ty->sampled(),
image_ty->format(), image_ty->access_qualifier());
break;
}
case Type::kSampledImage: {
const SampledImage* image_ty = type.AsSampledImage();
const Type* ele_ty = image_ty->image_type();
rebuilt_ty = MakeUnique<SampledImage>(RebuildType(*ele_ty));
break;
}
case Type::kArray: {
const Array* array_ty = type.AsArray();
rebuilt_ty =
MakeUnique<Array>(array_ty->element_type(), array_ty->length_info());
break;
}
case Type::kRuntimeArray: {
const RuntimeArray* array_ty = type.AsRuntimeArray();
const Type* ele_ty = array_ty->element_type();
rebuilt_ty = MakeUnique<RuntimeArray>(RebuildType(*ele_ty));
break;
}
case Type::kStruct: {
const Struct* struct_ty = type.AsStruct();
std::vector<const Type*> subtypes;
subtypes.reserve(struct_ty->element_types().size());
for (const auto* ele_ty : struct_ty->element_types()) {
subtypes.push_back(RebuildType(*ele_ty));
}
rebuilt_ty = MakeUnique<Struct>(subtypes);
Struct* rebuilt_struct = rebuilt_ty->AsStruct();
for (auto pair : struct_ty->element_decorations()) {
uint32_t index = pair.first;
for (const auto& dec : pair.second) {
// Explicit copy intended.
std::vector<uint32_t> copy(dec);
rebuilt_struct->AddMemberDecoration(index, std::move(copy));
}
}
break;
}
case Type::kPointer: {
const Pointer* pointer_ty = type.AsPointer();
const Type* ele_ty = pointer_ty->pointee_type();
rebuilt_ty = MakeUnique<Pointer>(RebuildType(*ele_ty),
pointer_ty->storage_class());
break;
}
case Type::kFunction: {
const Function* function_ty = type.AsFunction();
const Type* ret_ty = function_ty->return_type();
std::vector<const Type*> param_types;
param_types.reserve(function_ty->param_types().size());
for (const auto* param_ty : function_ty->param_types()) {
param_types.push_back(RebuildType(*param_ty));
}
rebuilt_ty = MakeUnique<Function>(RebuildType(*ret_ty), param_types);
break;
}
case Type::kForwardPointer: {
const ForwardPointer* forward_ptr_ty = type.AsForwardPointer();
rebuilt_ty = MakeUnique<ForwardPointer>(forward_ptr_ty->target_id(),
forward_ptr_ty->storage_class());
const Pointer* target_ptr = forward_ptr_ty->target_pointer();
if (target_ptr) {
rebuilt_ty->AsForwardPointer()->SetTargetPointer(
RebuildType(*target_ptr)->AsPointer());
}
break;
}
case Type::kCooperativeMatrixNV: {
const CooperativeMatrixNV* cm_type = type.AsCooperativeMatrixNV();
const Type* component_type = cm_type->component_type();
rebuilt_ty = MakeUnique<CooperativeMatrixNV>(
RebuildType(*component_type), cm_type->scope_id(), cm_type->rows_id(),
cm_type->columns_id());
break;
}
default:
assert(false && "Unhandled type");
return nullptr;
}
for (const auto& dec : type.decorations()) {
// Explicit copy intended.
std::vector<uint32_t> copy(dec);
rebuilt_ty->AddDecoration(std::move(copy));
}
return type_pool_.insert(std::move(rebuilt_ty)).first->get();
}
void TypeManager::RegisterType(uint32_t id, const Type& type) {
// Rebuild |type| so it and all its constituent types are owned by the type
// pool.
Type* rebuilt = RebuildType(type);
assert(rebuilt->IsSame(&type));
id_to_type_[id] = rebuilt;
if (GetId(rebuilt) == 0) {
type_to_id_[rebuilt] = id;
}
}
Type* TypeManager::GetRegisteredType(const Type* type) {
uint32_t id = GetTypeInstruction(type);
if (id == 0) {
return nullptr;
}
return GetType(id);
}
Type* TypeManager::RecordIfTypeDefinition(const Instruction& inst) {
if (!IsTypeInst(inst.opcode())) return nullptr;
Type* type = nullptr;
switch (inst.opcode()) {
case SpvOpTypeVoid:
type = new Void();
break;
case SpvOpTypeBool:
type = new Bool();
break;
case SpvOpTypeInt:
type = new Integer(inst.GetSingleWordInOperand(0),
inst.GetSingleWordInOperand(1));
break;
case SpvOpTypeFloat:
type = new Float(inst.GetSingleWordInOperand(0));
break;
case SpvOpTypeVector:
type = new Vector(GetType(inst.GetSingleWordInOperand(0)),
inst.GetSingleWordInOperand(1));
break;
case SpvOpTypeMatrix:
type = new Matrix(GetType(inst.GetSingleWordInOperand(0)),
inst.GetSingleWordInOperand(1));
break;
case SpvOpTypeImage: {
const SpvAccessQualifier access =
inst.NumInOperands() < 8
? SpvAccessQualifierReadOnly
: static_cast<SpvAccessQualifier>(inst.GetSingleWordInOperand(7));
type = new Image(
GetType(inst.GetSingleWordInOperand(0)),
static_cast<SpvDim>(inst.GetSingleWordInOperand(1)),
inst.GetSingleWordInOperand(2), inst.GetSingleWordInOperand(3) == 1,
inst.GetSingleWordInOperand(4) == 1, inst.GetSingleWordInOperand(5),
static_cast<SpvImageFormat>(inst.GetSingleWordInOperand(6)), access);
} break;
case SpvOpTypeSampler:
type = new Sampler();
break;
case SpvOpTypeSampledImage:
type = new SampledImage(GetType(inst.GetSingleWordInOperand(0)));
break;
case SpvOpTypeArray: {
const uint32_t length_id = inst.GetSingleWordInOperand(1);
const Instruction* length_constant_inst = id_to_constant_inst_[length_id];
assert(length_constant_inst);
// How will we distinguish one length value from another?
// Determine extra words required to distinguish this array length
// from another.
std::vector<uint32_t> extra_words{Array::LengthInfo::kDefiningId};
// If it is a specialised constant, retrieve its SpecId.
// Only OpSpecConstant has a SpecId.
uint32_t spec_id = 0u;
bool has_spec_id = false;
if (length_constant_inst->opcode() == SpvOpSpecConstant) {
context()->get_decoration_mgr()->ForEachDecoration(
length_id, SpvDecorationSpecId,
[&spec_id, &has_spec_id](const Instruction& decoration) {
assert(decoration.opcode() == SpvOpDecorate);
spec_id = decoration.GetSingleWordOperand(2u);
has_spec_id = true;
});
}
const auto opcode = length_constant_inst->opcode();
if (has_spec_id) {
extra_words.push_back(spec_id);
}
if ((opcode == SpvOpConstant) || (opcode == SpvOpSpecConstant)) {
// Always include the literal constant words. In the spec constant
// case, the constant might not be overridden, so it's still
// significant.
extra_words.insert(extra_words.end(),
length_constant_inst->GetOperand(2).words.begin(),
length_constant_inst->GetOperand(2).words.end());
extra_words[0] = has_spec_id ? Array::LengthInfo::kConstantWithSpecId
: Array::LengthInfo::kConstant;
} else {
assert(extra_words[0] == Array::LengthInfo::kDefiningId);
extra_words.push_back(length_id);
}
assert(extra_words.size() >= 2);
Array::LengthInfo length_info{length_id, extra_words};
type = new Array(GetType(inst.GetSingleWordInOperand(0)), length_info);
if (id_to_incomplete_type_.count(inst.GetSingleWordInOperand(0))) {
incomplete_types_.emplace_back(inst.result_id(), type);
id_to_incomplete_type_[inst.result_id()] = type;
return type;
}
} break;
case SpvOpTypeRuntimeArray:
type = new RuntimeArray(GetType(inst.GetSingleWordInOperand(0)));
if (id_to_incomplete_type_.count(inst.GetSingleWordInOperand(0))) {
incomplete_types_.emplace_back(inst.result_id(), type);
id_to_incomplete_type_[inst.result_id()] = type;
return type;
}
break;
case SpvOpTypeStruct: {
std::vector<const Type*> element_types;
bool incomplete_type = false;
for (uint32_t i = 0; i < inst.NumInOperands(); ++i) {
uint32_t type_id = inst.GetSingleWordInOperand(i);
element_types.push_back(GetType(type_id));
if (id_to_incomplete_type_.count(type_id)) {
incomplete_type = true;
}
}
type = new Struct(element_types);
if (incomplete_type) {
incomplete_types_.emplace_back(inst.result_id(), type);
id_to_incomplete_type_[inst.result_id()] = type;
return type;
}
} break;
case SpvOpTypeOpaque: {
const uint32_t* data = inst.GetInOperand(0).words.data();
type = new Opaque(reinterpret_cast<const char*>(data));
} break;
case SpvOpTypePointer: {
uint32_t pointee_type_id = inst.GetSingleWordInOperand(1);
type = new Pointer(
GetType(pointee_type_id),
static_cast<SpvStorageClass>(inst.GetSingleWordInOperand(0)));
if (id_to_incomplete_type_.count(pointee_type_id)) {
incomplete_types_.emplace_back(inst.result_id(), type);
id_to_incomplete_type_[inst.result_id()] = type;
return type;
}
id_to_incomplete_type_.erase(inst.result_id());
} break;
case SpvOpTypeFunction: {
bool incomplete_type = false;
uint32_t return_type_id = inst.GetSingleWordInOperand(0);
if (id_to_incomplete_type_.count(return_type_id)) {
incomplete_type = true;
}
Type* return_type = GetType(return_type_id);
std::vector<const Type*> param_types;
for (uint32_t i = 1; i < inst.NumInOperands(); ++i) {
uint32_t param_type_id = inst.GetSingleWordInOperand(i);
param_types.push_back(GetType(param_type_id));
if (id_to_incomplete_type_.count(param_type_id)) {
incomplete_type = true;
}
}
type = new Function(return_type, param_types);
if (incomplete_type) {
incomplete_types_.emplace_back(inst.result_id(), type);
id_to_incomplete_type_[inst.result_id()] = type;
return type;
}
} break;
case SpvOpTypeEvent:
type = new Event();
break;
case SpvOpTypeDeviceEvent:
type = new DeviceEvent();
break;
case SpvOpTypeReserveId:
type = new ReserveId();
break;
case SpvOpTypeQueue:
type = new Queue();
break;
case SpvOpTypePipe:
type = new Pipe(
static_cast<SpvAccessQualifier>(inst.GetSingleWordInOperand(0)));
break;
case SpvOpTypeForwardPointer: {
// Handling of forward pointers is different from the other types.
uint32_t target_id = inst.GetSingleWordInOperand(0);
type = new ForwardPointer(target_id, static_cast<SpvStorageClass>(
inst.GetSingleWordInOperand(1)));
incomplete_types_.emplace_back(target_id, type);
id_to_incomplete_type_[target_id] = type;
return type;
}
case SpvOpTypePipeStorage:
type = new PipeStorage();
break;
case SpvOpTypeNamedBarrier:
type = new NamedBarrier();
break;
case SpvOpTypeAccelerationStructureNV:
type = new AccelerationStructureNV();
break;
case SpvOpTypeCooperativeMatrixNV:
type = new CooperativeMatrixNV(GetType(inst.GetSingleWordInOperand(0)),
inst.GetSingleWordInOperand(1),
inst.GetSingleWordInOperand(2),
inst.GetSingleWordInOperand(3));
break;
case SpvOpTypeRayQueryKHR:
type = new RayQueryKHR();
break;
default:
SPIRV_UNIMPLEMENTED(consumer_, "unhandled type");
break;
}
uint32_t id = inst.result_id();
SPIRV_ASSERT(consumer_, id != 0, "instruction without result id found");
SPIRV_ASSERT(consumer_, type != nullptr,
"type should not be nullptr at this point");
std::vector<Instruction*> decorations =
context()->get_decoration_mgr()->GetDecorationsFor(id, true);
for (auto dec : decorations) {
AttachDecoration(*dec, type);
}
std::unique_ptr<Type> unique(type);
auto pair = type_pool_.insert(std::move(unique));
id_to_type_[id] = pair.first->get();
type_to_id_[pair.first->get()] = id;
return type;
}
void TypeManager::AttachDecoration(const Instruction& inst, Type* type) {
const SpvOp opcode = inst.opcode();
if (!IsAnnotationInst(opcode)) return;
switch (opcode) {
case SpvOpDecorate: {
const auto count = inst.NumOperands();
std::vector<uint32_t> data;
for (uint32_t i = 1; i < count; ++i) {
data.push_back(inst.GetSingleWordOperand(i));
}
type->AddDecoration(std::move(data));
} break;
case SpvOpMemberDecorate: {
const auto count = inst.NumOperands();
const uint32_t index = inst.GetSingleWordOperand(1);
std::vector<uint32_t> data;
for (uint32_t i = 2; i < count; ++i) {
data.push_back(inst.GetSingleWordOperand(i));
}
if (Struct* st = type->AsStruct()) {
st->AddMemberDecoration(index, std::move(data));
} else {
SPIRV_UNIMPLEMENTED(consumer_, "OpMemberDecorate non-struct type");
}
} break;
default:
SPIRV_UNREACHABLE(consumer_);
break;
}
}
const Type* TypeManager::GetMemberType(
const Type* parent_type, const std::vector<uint32_t>& access_chain) {
for (uint32_t element_index : access_chain) {
if (const Struct* struct_type = parent_type->AsStruct()) {
parent_type = struct_type->element_types()[element_index];
} else if (const Array* array_type = parent_type->AsArray()) {
parent_type = array_type->element_type();
} else if (const RuntimeArray* runtime_array_type =
parent_type->AsRuntimeArray()) {
parent_type = runtime_array_type->element_type();
} else if (const Vector* vector_type = parent_type->AsVector()) {
parent_type = vector_type->element_type();
} else if (const Matrix* matrix_type = parent_type->AsMatrix()) {
parent_type = matrix_type->element_type();
} else {
assert(false && "Trying to get a member of a type without members.");
}
}
return parent_type;
}
void TypeManager::ReplaceForwardPointers(Type* type) {
switch (type->kind()) {
case Type::kArray: {
const ForwardPointer* element_type =
type->AsArray()->element_type()->AsForwardPointer();
if (element_type) {
type->AsArray()->ReplaceElementType(element_type->target_pointer());
}
} break;
case Type::kRuntimeArray: {
const ForwardPointer* element_type =
type->AsRuntimeArray()->element_type()->AsForwardPointer();
if (element_type) {
type->AsRuntimeArray()->ReplaceElementType(
element_type->target_pointer());
}
} break;
case Type::kStruct: {
auto& member_types = type->AsStruct()->element_types();
for (auto& member_type : member_types) {
if (member_type->AsForwardPointer()) {
member_type = member_type->AsForwardPointer()->target_pointer();
assert(member_type);
}
}
} break;
case Type::kPointer: {
const ForwardPointer* pointee_type =
type->AsPointer()->pointee_type()->AsForwardPointer();
if (pointee_type) {
type->AsPointer()->SetPointeeType(pointee_type->target_pointer());
}
} break;
case Type::kFunction: {
Function* func_type = type->AsFunction();
const ForwardPointer* return_type =
func_type->return_type()->AsForwardPointer();
if (return_type) {
func_type->SetReturnType(return_type->target_pointer());
}
auto& param_types = func_type->param_types();
for (auto& param_type : param_types) {
if (param_type->AsForwardPointer()) {
param_type = param_type->AsForwardPointer()->target_pointer();
}
}
} break;
default:
break;
}
}
void TypeManager::ReplaceType(Type* new_type, Type* original_type) {
assert(original_type->kind() == new_type->kind() &&
"Types must be the same for replacement.\n");
for (auto& p : incomplete_types_) {
Type* type = p.type();
if (!type) {
continue;
}
switch (type->kind()) {
case Type::kArray: {
const Type* element_type = type->AsArray()->element_type();
if (element_type == original_type) {
type->AsArray()->ReplaceElementType(new_type);
}
} break;
case Type::kRuntimeArray: {
const Type* element_type = type->AsRuntimeArray()->element_type();
if (element_type == original_type) {
type->AsRuntimeArray()->ReplaceElementType(new_type);
}
} break;
case Type::kStruct: {
auto& member_types = type->AsStruct()->element_types();
for (auto& member_type : member_types) {
if (member_type == original_type) {
member_type = new_type;
}
}
} break;
case Type::kPointer: {
const Type* pointee_type = type->AsPointer()->pointee_type();
if (pointee_type == original_type) {
type->AsPointer()->SetPointeeType(new_type);
}
} break;
case Type::kFunction: {
Function* func_type = type->AsFunction();
const Type* return_type = func_type->return_type();
if (return_type == original_type) {
func_type->SetReturnType(new_type);
}
auto& param_types = func_type->param_types();
for (auto& param_type : param_types) {
if (param_type == original_type) {
param_type = new_type;
}
}
} break;
default:
break;
}
}
}
} // namespace analysis
} // namespace opt
} // namespace spvtools