SPIRV-Tools/source/opt/module.cpp
Jaebaek Seo 1c8bda3721
Add data structure for DebugScope, DebugDeclare in spirv-opt (#3183)
When DebugScope is given in SPIR-V, each instruction following the
DebugScope is from the lexical scope pointed by the DebugScope in
the high level language. We add DebugScope struction to keep the
scope information in Instruction class. When ir_loader loads
DebugScope/DebugNoScope, it keeps the scope information in
|last_dbg_scope_| and lets following instructions have that scope
information.

In terms of DebugDeclare/DebugValue, if it is in a function body
but outside of a basic block, we keep it in |debug_insts_in_header_|
of Function class. If it is in a basic block, we keep it as a normal
instruction i.e., in a instruction list of BasicBlock.
2020-03-23 11:01:18 -04:00

209 lines
6.3 KiB
C++

// 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/module.h"
#include <algorithm>
#include <cstring>
#include <ostream>
#include "source/operand.h"
#include "source/opt/ir_context.h"
#include "source/opt/reflect.h"
namespace spvtools {
namespace opt {
uint32_t Module::TakeNextIdBound() {
if (context()) {
if (id_bound() >= context()->max_id_bound()) {
return 0;
}
} else if (id_bound() >= kDefaultMaxIdBound) {
return 0;
}
return header_.bound++;
}
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) {
std::unique_ptr<Instruction> newGlobal(
new 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(ext_inst_debuginfo_);
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 : ext_inst_debuginfo_) DELEGATE(i);
for (auto& i : functions_) {
static_cast<const Function*>(i.get())->ForEachInst(f,
run_on_debug_line_insts);
}
if (run_on_debug_line_insts) {
for (auto& i : trailing_dbg_line_info_) DELEGATE(i);
}
#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);
size_t bound_idx = binary->size() - 2;
DebugScope last_scope(kNoDebugScope, kNoInlinedAt);
auto write_inst = [binary, skip_nop, &last_scope,
this](const Instruction* i) {
if (!(skip_nop && i->IsNop())) {
const auto& scope = i->GetDebugScope();
if (scope != last_scope) {
// Emit DebugScope |scope| to |binary|.
auto dbg_inst = ext_inst_debuginfo_.begin();
scope.ToBinary(dbg_inst->type_id(), context()->TakeNextId(),
dbg_inst->GetSingleWordOperand(2), binary);
last_scope = scope;
}
i->ToBinaryWithoutAttachedDebugInsts(binary);
}
};
ForEachInst(write_inst, true);
// We create new instructions for DebugScope. The bound must be updated.
binary->data()[bound_idx] = header_.bound;
}
uint32_t Module::ComputeIdBound() const {
uint32_t highest = 0;
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 Instruction* inst) {
str << *inst;
if (inst->opcode() != SpvOpFunctionEnd) {
str << std::endl;
}
});
return str;
}
} // namespace opt
} // namespace spvtools