SPIRV-Tools/source/opt/module.cpp

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// 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 "module.h"
#include <algorithm>
#include <cstring>
#include <ostream>
#include "operand.h"
#include "reflect.h"
namespace spvtools {
namespace ir {
std::vector<Instruction*> Module::GetTypes() {
std::vector<Instruction*> type_insts;
for (auto& inst : types_values_) {
if (IsTypeInst(inst.opcode())) type_insts.push_back(&inst);
}
return type_insts;
}
std::vector<const Instruction*> Module::GetTypes() const {
std::vector<const Instruction*> type_insts;
for (auto& inst : types_values_) {
if (IsTypeInst(inst.opcode())) type_insts.push_back(&inst);
}
return type_insts;
}
std::vector<Instruction*> Module::GetConstants() {
std::vector<Instruction*> const_insts;
for (auto& inst : types_values_) {
if (IsConstantInst(inst.opcode())) const_insts.push_back(&inst);
}
return const_insts;
}
std::vector<const Instruction*> Module::GetConstants() const {
std::vector<const Instruction*> const_insts;
for (auto& inst : types_values_) {
if (IsConstantInst(inst.opcode())) const_insts.push_back(&inst);
}
return const_insts;
}
uint32_t Module::GetGlobalValue(SpvOp opcode) const {
for (auto& inst : types_values_) {
if (inst.opcode() == opcode) return inst.result_id();
}
return 0;
}
void Module::AddGlobalValue(SpvOp opcode, uint32_t result_id,
uint32_t type_id) {
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std::unique_ptr<ir::Instruction> newGlobal(
Adding an unique id to Instruction generated by IRContext Each instruction is given an unique id that can be used for ordering purposes. The ids are generated via the IRContext. Major changes: * Instructions now contain a uint32_t for unique id and a cached context pointer * Most constructors have been modified to take a context as input * unfortunately I cannot remove the default and copy constructors, but developers should avoid these * Added accessors to parents of basic block and function * Removed the copy constructors for BasicBlock and Function and replaced them with Clone functions * Reworked BuildModule to return an IRContext owning the built module * Since all instructions require a context, the context now becomes the basic unit for IR * Added a constructor to context to create an owned module internally * Replaced uses of Instruction's copy constructor with Clone whereever I found them * Reworked the linker functionality to perform clones into a different context instead of moves * Updated many tests to be consistent with the above changes * Still need to add new tests to cover added functionality * Added comparison operators to Instruction * Added an internal option to LinkerOptions to verify merged ids are unique * Added a test for the linker to verify merged ids are unique * Updated MergeReturnPass to supply a context * Updated DecorationManager to supply a context for cloned decorations * Reworked several portions of the def use tests in anticipation of next set of changes
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new ir::Instruction(context(), opcode, type_id, result_id, {}));
AddGlobalValue(std::move(newGlobal));
}
void Module::ForEachInst(const std::function<void(Instruction*)>& f,
bool run_on_debug_line_insts) {
#define DELEGATE(list) list.ForEachInst(f, run_on_debug_line_insts)
DELEGATE(capabilities_);
DELEGATE(extensions_);
DELEGATE(ext_inst_imports_);
if (memory_model_) memory_model_->ForEachInst(f, run_on_debug_line_insts);
DELEGATE(entry_points_);
DELEGATE(execution_modes_);
DELEGATE(debugs1_);
DELEGATE(debugs2_);
DELEGATE(debugs3_);
DELEGATE(annotations_);
DELEGATE(types_values_);
for (auto& i : functions_) i->ForEachInst(f, run_on_debug_line_insts);
#undef DELEGATE
}
void Module::ForEachInst(const std::function<void(const Instruction*)>& f,
bool run_on_debug_line_insts) const {
#define DELEGATE(i) i.ForEachInst(f, run_on_debug_line_insts)
for (auto& i : capabilities_) DELEGATE(i);
for (auto& i : extensions_) DELEGATE(i);
for (auto& i : ext_inst_imports_) DELEGATE(i);
if (memory_model_)
static_cast<const Instruction*>(memory_model_.get())
->ForEachInst(f, run_on_debug_line_insts);
for (auto& i : entry_points_) DELEGATE(i);
for (auto& i : execution_modes_) DELEGATE(i);
for (auto& i : debugs1_) DELEGATE(i);
for (auto& i : debugs2_) DELEGATE(i);
for (auto& i : debugs3_) DELEGATE(i);
for (auto& i : annotations_) DELEGATE(i);
for (auto& i : types_values_) DELEGATE(i);
for (auto& i : functions_) {
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static_cast<const Function*>(i.get())->ForEachInst(f,
run_on_debug_line_insts);
}
#undef DELEGATE
}
void Module::ToBinary(std::vector<uint32_t>* binary, bool skip_nop) const {
binary->push_back(header_.magic_number);
binary->push_back(header_.version);
// TODO(antiagainst): should we change the generator number?
binary->push_back(header_.generator);
binary->push_back(header_.bound);
binary->push_back(header_.reserved);
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auto write_inst = [binary, skip_nop](const Instruction* i) {
if (!(skip_nop && i->IsNop())) i->ToBinaryWithoutAttachedDebugInsts(binary);
};
ForEachInst(write_inst, true);
}
uint32_t Module::ComputeIdBound() const {
uint32_t highest = 0;
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ForEachInst(
[&highest](const Instruction* inst) {
for (const auto& operand : *inst) {
if (spvIsIdType(operand.type)) {
highest = std::max(highest, operand.words[0]);
}
}
},
true /* scan debug line insts as well */);
return highest + 1;
}
bool Module::HasExplicitCapability(uint32_t cap) {
for (auto& ci : capabilities_) {
uint32_t tcap = ci.GetSingleWordOperand(0);
if (tcap == cap) {
return true;
}
}
return false;
}
uint32_t Module::GetExtInstImportId(const char* extstr) {
for (auto& ei : ext_inst_imports_)
if (!strcmp(extstr,
reinterpret_cast<const char*>(&(ei.GetInOperand(0).words[0]))))
return ei.result_id();
return 0;
}
std::ostream& operator<<(std::ostream& str, const Module& module) {
module.ForEachInst([&str](const ir::Instruction* inst) {
str << *inst;
if (inst->opcode() != SpvOpFunctionEnd) {
str << std::endl;
}
});
return str;
}
} // namespace ir
} // namespace spvtools