| // 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/ir_loader.h" |
| |
| #include <utility> |
| |
| #include "DebugInfo.h" |
| #include "OpenCLDebugInfo100.h" |
| #include "source/ext_inst.h" |
| #include "source/opt/log.h" |
| #include "source/opt/reflect.h" |
| #include "source/util/make_unique.h" |
| |
| static const uint32_t kExtInstSetIndex = 4; |
| static const uint32_t kLexicalScopeIndex = 5; |
| static const uint32_t kInlinedAtIndex = 6; |
| |
| namespace spvtools { |
| namespace opt { |
| |
| IrLoader::IrLoader(const MessageConsumer& consumer, Module* m) |
| : consumer_(consumer), |
| module_(m), |
| source_("<instruction>"), |
| inst_index_(0), |
| last_dbg_scope_(kNoDebugScope, kNoInlinedAt) {} |
| |
| bool IrLoader::AddInstruction(const spv_parsed_instruction_t* inst) { |
| ++inst_index_; |
| const auto opcode = static_cast<SpvOp>(inst->opcode); |
| if (IsDebugLineInst(opcode)) { |
| module()->SetContainsDebugInfo(); |
| last_line_inst_.reset(); |
| dbg_line_info_.push_back( |
| Instruction(module()->context(), *inst, last_dbg_scope_)); |
| return true; |
| } |
| |
| // If it is a DebugScope or DebugNoScope of debug extension, we do not |
| // create a new instruction, but simply keep the information in |
| // struct DebugScope. |
| if (opcode == SpvOpExtInst && spvExtInstIsDebugInfo(inst->ext_inst_type)) { |
| const uint32_t ext_inst_index = inst->words[kExtInstSetIndex]; |
| if (inst->ext_inst_type == SPV_EXT_INST_TYPE_OPENCL_DEBUGINFO_100 || |
| inst->ext_inst_type == |
| SPV_EXT_INST_TYPE_NONSEMANTIC_VULKAN_DEBUGINFO_100) { |
| const CommonDebugInfoInstructions ext_inst_key = |
| CommonDebugInfoInstructions(ext_inst_index); |
| if (ext_inst_key == CommonDebugInfoDebugScope) { |
| uint32_t inlined_at = 0; |
| if (inst->num_words > kInlinedAtIndex) |
| inlined_at = inst->words[kInlinedAtIndex]; |
| last_dbg_scope_ = |
| DebugScope(inst->words[kLexicalScopeIndex], inlined_at); |
| module()->SetContainsDebugInfo(); |
| return true; |
| } |
| if (ext_inst_key == CommonDebugInfoDebugNoScope) { |
| last_dbg_scope_ = DebugScope(kNoDebugScope, kNoInlinedAt); |
| module()->SetContainsDebugInfo(); |
| return true; |
| } |
| } else { |
| const DebugInfoInstructions ext_inst_key = |
| DebugInfoInstructions(ext_inst_index); |
| if (ext_inst_key == DebugInfoDebugScope) { |
| uint32_t inlined_at = 0; |
| if (inst->num_words > kInlinedAtIndex) |
| inlined_at = inst->words[kInlinedAtIndex]; |
| last_dbg_scope_ = |
| DebugScope(inst->words[kLexicalScopeIndex], inlined_at); |
| module()->SetContainsDebugInfo(); |
| return true; |
| } |
| if (ext_inst_key == DebugInfoDebugNoScope) { |
| last_dbg_scope_ = DebugScope(kNoDebugScope, kNoInlinedAt); |
| module()->SetContainsDebugInfo(); |
| return true; |
| } |
| } |
| } |
| |
| std::unique_ptr<Instruction> spv_inst( |
| new Instruction(module()->context(), *inst, std::move(dbg_line_info_))); |
| if (!spv_inst->dbg_line_insts().empty()) { |
| if (extra_line_tracking_ && |
| (spv_inst->dbg_line_insts().back().opcode() != SpvOpNoLine)) { |
| last_line_inst_ = std::unique_ptr<Instruction>( |
| spv_inst->dbg_line_insts().back().Clone(module()->context())); |
| } |
| dbg_line_info_.clear(); |
| } else if (last_line_inst_ != nullptr) { |
| last_line_inst_->SetDebugScope(last_dbg_scope_); |
| spv_inst->dbg_line_insts().push_back(*last_line_inst_); |
| } |
| |
| const char* src = source_.c_str(); |
| spv_position_t loc = {inst_index_, 0, 0}; |
| |
| // Handle function and basic block boundaries first, then normal |
| // instructions. |
| if (opcode == SpvOpFunction) { |
| if (function_ != nullptr) { |
| Error(consumer_, src, loc, "function inside function"); |
| return false; |
| } |
| function_ = MakeUnique<Function>(std::move(spv_inst)); |
| } else if (opcode == SpvOpFunctionEnd) { |
| if (function_ == nullptr) { |
| Error(consumer_, src, loc, |
| "OpFunctionEnd without corresponding OpFunction"); |
| return false; |
| } |
| if (block_ != nullptr) { |
| Error(consumer_, src, loc, "OpFunctionEnd inside basic block"); |
| return false; |
| } |
| function_->SetFunctionEnd(std::move(spv_inst)); |
| module_->AddFunction(std::move(function_)); |
| function_ = nullptr; |
| } else if (opcode == SpvOpLabel) { |
| if (function_ == nullptr) { |
| Error(consumer_, src, loc, "OpLabel outside function"); |
| return false; |
| } |
| if (block_ != nullptr) { |
| Error(consumer_, src, loc, "OpLabel inside basic block"); |
| return false; |
| } |
| block_ = MakeUnique<BasicBlock>(std::move(spv_inst)); |
| } else if (spvOpcodeIsBlockTerminator(opcode)) { |
| if (function_ == nullptr) { |
| Error(consumer_, src, loc, "terminator instruction outside function"); |
| return false; |
| } |
| if (block_ == nullptr) { |
| Error(consumer_, src, loc, "terminator instruction outside basic block"); |
| return false; |
| } |
| if (last_dbg_scope_.GetLexicalScope() != kNoDebugScope) |
| spv_inst->SetDebugScope(last_dbg_scope_); |
| block_->AddInstruction(std::move(spv_inst)); |
| function_->AddBasicBlock(std::move(block_)); |
| block_ = nullptr; |
| last_dbg_scope_ = DebugScope(kNoDebugScope, kNoInlinedAt); |
| last_line_inst_.reset(); |
| dbg_line_info_.clear(); |
| } else { |
| if (function_ == nullptr) { // Outside function definition |
| SPIRV_ASSERT(consumer_, block_ == nullptr); |
| if (opcode == SpvOpCapability) { |
| module_->AddCapability(std::move(spv_inst)); |
| } else if (opcode == SpvOpExtension) { |
| module_->AddExtension(std::move(spv_inst)); |
| } else if (opcode == SpvOpExtInstImport) { |
| module_->AddExtInstImport(std::move(spv_inst)); |
| } else if (opcode == SpvOpMemoryModel) { |
| module_->SetMemoryModel(std::move(spv_inst)); |
| } else if (opcode == SpvOpEntryPoint) { |
| module_->AddEntryPoint(std::move(spv_inst)); |
| } else if (opcode == SpvOpExecutionMode) { |
| module_->AddExecutionMode(std::move(spv_inst)); |
| } else if (IsDebug1Inst(opcode)) { |
| module_->AddDebug1Inst(std::move(spv_inst)); |
| } else if (IsDebug2Inst(opcode)) { |
| module_->AddDebug2Inst(std::move(spv_inst)); |
| } else if (IsDebug3Inst(opcode)) { |
| module_->AddDebug3Inst(std::move(spv_inst)); |
| } else if (IsAnnotationInst(opcode)) { |
| module_->AddAnnotationInst(std::move(spv_inst)); |
| } else if (IsTypeInst(opcode)) { |
| module_->AddType(std::move(spv_inst)); |
| } else if (IsConstantInst(opcode) || opcode == SpvOpVariable || |
| opcode == SpvOpUndef) { |
| module_->AddGlobalValue(std::move(spv_inst)); |
| } else if (opcode == SpvOpExtInst && |
| spvExtInstIsDebugInfo(inst->ext_inst_type)) { |
| module_->AddExtInstDebugInfo(std::move(spv_inst)); |
| } else if (opcode == SpvOpExtInst && |
| spvExtInstIsNonSemantic(inst->ext_inst_type)) { |
| // If there are no functions, add the non-semantic instructions to the |
| // global values. Otherwise append it to the list of the last function. |
| auto func_begin = module_->begin(); |
| auto func_end = module_->end(); |
| if (func_begin == func_end) { |
| module_->AddGlobalValue(std::move(spv_inst)); |
| } else { |
| (--func_end)->AddNonSemanticInstruction(std::move(spv_inst)); |
| } |
| } else { |
| Errorf(consumer_, src, loc, |
| "Unhandled inst type (opcode: %d) found outside function " |
| "definition.", |
| opcode); |
| return false; |
| } |
| } else { |
| if (opcode == SpvOpLoopMerge || opcode == SpvOpSelectionMerge) |
| last_dbg_scope_ = DebugScope(kNoDebugScope, kNoInlinedAt); |
| if (last_dbg_scope_.GetLexicalScope() != kNoDebugScope) |
| spv_inst->SetDebugScope(last_dbg_scope_); |
| if (opcode == SpvOpExtInst && |
| spvExtInstIsDebugInfo(inst->ext_inst_type)) { |
| const uint32_t ext_inst_index = inst->words[kExtInstSetIndex]; |
| if (inst->ext_inst_type == SPV_EXT_INST_TYPE_OPENCL_DEBUGINFO_100) { |
| const OpenCLDebugInfo100Instructions ext_inst_key = |
| OpenCLDebugInfo100Instructions(ext_inst_index); |
| switch (ext_inst_key) { |
| case OpenCLDebugInfo100DebugDeclare: { |
| if (block_ == nullptr) // Inside function but outside blocks |
| function_->AddDebugInstructionInHeader(std::move(spv_inst)); |
| else |
| block_->AddInstruction(std::move(spv_inst)); |
| break; |
| } |
| case OpenCLDebugInfo100DebugValue: { |
| if (block_ == nullptr) // Inside function but outside blocks |
| function_->AddDebugInstructionInHeader(std::move(spv_inst)); |
| else |
| block_->AddInstruction(std::move(spv_inst)); |
| break; |
| } |
| default: { |
| Errorf(consumer_, src, loc, |
| "Debug info extension instruction other than DebugScope, " |
| "DebugNoScope, DebugDeclare, and DebugValue found inside " |
| "function", |
| opcode); |
| return false; |
| } |
| } |
| } else { |
| const DebugInfoInstructions ext_inst_key = |
| DebugInfoInstructions(ext_inst_index); |
| switch (ext_inst_key) { |
| case DebugInfoDebugDeclare: { |
| if (block_ == nullptr) // Inside function but outside blocks |
| function_->AddDebugInstructionInHeader(std::move(spv_inst)); |
| else |
| block_->AddInstruction(std::move(spv_inst)); |
| break; |
| } |
| case DebugInfoDebugValue: { |
| if (block_ == nullptr) // Inside function but outside blocks |
| function_->AddDebugInstructionInHeader(std::move(spv_inst)); |
| else |
| block_->AddInstruction(std::move(spv_inst)); |
| break; |
| } |
| default: { |
| Errorf(consumer_, src, loc, |
| "Debug info extension instruction other than DebugScope, " |
| "DebugNoScope, DebugDeclare, and DebugValue found inside " |
| "function", |
| opcode); |
| return false; |
| } |
| } |
| } |
| } else { |
| if (block_ == nullptr) { // Inside function but outside blocks |
| if (opcode != SpvOpFunctionParameter) { |
| Errorf(consumer_, src, loc, |
| "Non-OpFunctionParameter (opcode: %d) found inside " |
| "function but outside basic block", |
| opcode); |
| return false; |
| } |
| function_->AddParameter(std::move(spv_inst)); |
| } else { |
| block_->AddInstruction(std::move(spv_inst)); |
| } |
| } |
| } |
| } |
| return true; |
| } |
| |
| // Resolves internal references among the module, functions, basic blocks, etc. |
| // This function should be called after adding all instructions. |
| void IrLoader::EndModule() { |
| if (block_ && function_) { |
| // We're in the middle of a basic block, but the terminator is missing. |
| // Register the block anyway. This lets us write tests with less |
| // boilerplate. |
| function_->AddBasicBlock(std::move(block_)); |
| block_ = nullptr; |
| } |
| if (function_) { |
| // We're in the middle of a function, but the OpFunctionEnd is missing. |
| // Register the function anyway. This lets us write tests with less |
| // boilerplate. |
| module_->AddFunction(std::move(function_)); |
| function_ = nullptr; |
| } |
| for (auto& function : *module_) { |
| for (auto& bb : function) bb.SetParent(&function); |
| } |
| |
| // Copy any trailing Op*Line instruction into the module |
| module_->SetTrailingDbgLineInfo(std::move(dbg_line_info_)); |
| } |
| |
| } // namespace opt |
| } // namespace spvtools |
