| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * 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 "object_utils.h" |
| |
| #include <llvm/ADT/DepthFirstIterator.h> |
| #include <llvm/Analysis/Verifier.h> |
| #include <llvm/Bitcode/ReaderWriter.h> |
| #include <llvm/IR/Instruction.h> |
| #include <llvm/IR/Instructions.h> |
| #include <llvm/IR/Metadata.h> |
| #include <llvm/IR/Type.h> |
| #include <llvm/Support/Casting.h> |
| #include <llvm/Support/InstIterator.h> |
| #include <llvm/Support/ToolOutputFile.h> |
| |
| #include "dex/compiler_internals.h" |
| #include "dex/dataflow_iterator-inl.h" |
| #include "dex/frontend.h" |
| #include "mir_to_gbc.h" |
| |
| #include "llvm/llvm_compilation_unit.h" |
| #include "llvm/utils_llvm.h" |
| |
| const char* kLabelFormat = "%c0x%x_%d"; |
| const char kInvalidBlock = 0xff; |
| const char kNormalBlock = 'L'; |
| const char kCatchBlock = 'C'; |
| |
| namespace art { |
| |
| ::llvm::BasicBlock* MirConverter::GetLLVMBlock(int id) { |
| return id_to_block_map_.Get(id); |
| } |
| |
| ::llvm::Value* MirConverter::GetLLVMValue(int s_reg) { |
| return llvm_values_.Get(s_reg); |
| } |
| |
| void MirConverter::SetVregOnValue(::llvm::Value* val, int s_reg) { |
| // Set vreg for debugging |
| art::llvm::IntrinsicHelper::IntrinsicId id = art::llvm::IntrinsicHelper::SetVReg; |
| ::llvm::Function* func = intrinsic_helper_->GetIntrinsicFunction(id); |
| int v_reg = mir_graph_->SRegToVReg(s_reg); |
| ::llvm::Value* table_slot = irb_->getInt32(v_reg); |
| ::llvm::Value* args[] = { table_slot, val }; |
| irb_->CreateCall(func, args); |
| } |
| |
| // Replace the placeholder value with the real definition |
| void MirConverter::DefineValueOnly(::llvm::Value* val, int s_reg) { |
| ::llvm::Value* placeholder = GetLLVMValue(s_reg); |
| if (placeholder == NULL) { |
| // This can happen on instruction rewrite on verification failure |
| LOG(WARNING) << "Null placeholder"; |
| return; |
| } |
| placeholder->replaceAllUsesWith(val); |
| val->takeName(placeholder); |
| llvm_values_.Put(s_reg, val); |
| ::llvm::Instruction* inst = ::llvm::dyn_cast< ::llvm::Instruction>(placeholder); |
| DCHECK(inst != NULL); |
| inst->eraseFromParent(); |
| } |
| |
| void MirConverter::DefineValue(::llvm::Value* val, int s_reg) { |
| DefineValueOnly(val, s_reg); |
| SetVregOnValue(val, s_reg); |
| } |
| |
| ::llvm::Type* MirConverter::LlvmTypeFromLocRec(RegLocation loc) { |
| ::llvm::Type* res = NULL; |
| if (loc.wide) { |
| if (loc.fp) |
| res = irb_->getDoubleTy(); |
| else |
| res = irb_->getInt64Ty(); |
| } else { |
| if (loc.fp) { |
| res = irb_->getFloatTy(); |
| } else { |
| if (loc.ref) |
| res = irb_->getJObjectTy(); |
| else |
| res = irb_->getInt32Ty(); |
| } |
| } |
| return res; |
| } |
| |
| void MirConverter::InitIR() { |
| if (llvm_info_ == NULL) { |
| CompilerTls* tls = cu_->compiler_driver->GetTls(); |
| CHECK(tls != NULL); |
| llvm_info_ = static_cast<LLVMInfo*>(tls->GetLLVMInfo()); |
| if (llvm_info_ == NULL) { |
| llvm_info_ = new LLVMInfo(); |
| tls->SetLLVMInfo(llvm_info_); |
| } |
| } |
| context_ = llvm_info_->GetLLVMContext(); |
| module_ = llvm_info_->GetLLVMModule(); |
| intrinsic_helper_ = llvm_info_->GetIntrinsicHelper(); |
| irb_ = llvm_info_->GetIRBuilder(); |
| } |
| |
| ::llvm::BasicBlock* MirConverter::FindCaseTarget(uint32_t vaddr) { |
| BasicBlock* bb = mir_graph_->FindBlock(vaddr); |
| DCHECK(bb != NULL); |
| return GetLLVMBlock(bb->id); |
| } |
| |
| void MirConverter::ConvertPackedSwitch(BasicBlock* bb, |
| int32_t table_offset, RegLocation rl_src) { |
| const Instruction::PackedSwitchPayload* payload = |
| reinterpret_cast<const Instruction::PackedSwitchPayload*>( |
| cu_->insns + current_dalvik_offset_ + table_offset); |
| |
| ::llvm::Value* value = GetLLVMValue(rl_src.orig_sreg); |
| |
| ::llvm::SwitchInst* sw = |
| irb_->CreateSwitch(value, GetLLVMBlock(bb->fall_through->id), |
| payload->case_count); |
| |
| for (uint16_t i = 0; i < payload->case_count; ++i) { |
| ::llvm::BasicBlock* llvm_bb = |
| FindCaseTarget(current_dalvik_offset_ + payload->targets[i]); |
| sw->addCase(irb_->getInt32(payload->first_key + i), llvm_bb); |
| } |
| ::llvm::MDNode* switch_node = |
| ::llvm::MDNode::get(*context_, irb_->getInt32(table_offset)); |
| sw->setMetadata("SwitchTable", switch_node); |
| bb->taken = NULL; |
| bb->fall_through = NULL; |
| } |
| |
| void MirConverter::ConvertSparseSwitch(BasicBlock* bb, |
| int32_t table_offset, RegLocation rl_src) { |
| const Instruction::SparseSwitchPayload* payload = |
| reinterpret_cast<const Instruction::SparseSwitchPayload*>( |
| cu_->insns + current_dalvik_offset_ + table_offset); |
| |
| const int32_t* keys = payload->GetKeys(); |
| const int32_t* targets = payload->GetTargets(); |
| |
| ::llvm::Value* value = GetLLVMValue(rl_src.orig_sreg); |
| |
| ::llvm::SwitchInst* sw = |
| irb_->CreateSwitch(value, GetLLVMBlock(bb->fall_through->id), |
| payload->case_count); |
| |
| for (size_t i = 0; i < payload->case_count; ++i) { |
| ::llvm::BasicBlock* llvm_bb = |
| FindCaseTarget(current_dalvik_offset_ + targets[i]); |
| sw->addCase(irb_->getInt32(keys[i]), llvm_bb); |
| } |
| ::llvm::MDNode* switch_node = |
| ::llvm::MDNode::get(*context_, irb_->getInt32(table_offset)); |
| sw->setMetadata("SwitchTable", switch_node); |
| bb->taken = NULL; |
| bb->fall_through = NULL; |
| } |
| |
| void MirConverter::ConvertSget(int32_t field_index, |
| art::llvm::IntrinsicHelper::IntrinsicId id, RegLocation rl_dest) { |
| ::llvm::Constant* field_idx = irb_->getInt32(field_index); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* res = irb_->CreateCall(intr, field_idx); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertSput(int32_t field_index, |
| art::llvm::IntrinsicHelper::IntrinsicId id, RegLocation rl_src) { |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(field_index)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| irb_->CreateCall(intr, args); |
| } |
| |
| void MirConverter::ConvertFillArrayData(int32_t offset, RegLocation rl_array) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| id = art::llvm::IntrinsicHelper::HLFillArrayData; |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(offset)); |
| args.push_back(GetLLVMValue(rl_array.orig_sreg)); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| irb_->CreateCall(intr, args); |
| } |
| |
| ::llvm::Value* MirConverter::EmitConst(::llvm::ArrayRef< ::llvm::Value*> src, |
| RegLocation loc) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| if (loc.wide) { |
| if (loc.fp) { |
| id = art::llvm::IntrinsicHelper::ConstDouble; |
| } else { |
| id = art::llvm::IntrinsicHelper::ConstLong; |
| } |
| } else { |
| if (loc.fp) { |
| id = art::llvm::IntrinsicHelper::ConstFloat; |
| } else if (loc.ref) { |
| id = art::llvm::IntrinsicHelper::ConstObj; |
| } else { |
| id = art::llvm::IntrinsicHelper::ConstInt; |
| } |
| } |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| return irb_->CreateCall(intr, src); |
| } |
| |
| void MirConverter::EmitPopShadowFrame() { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction( |
| art::llvm::IntrinsicHelper::PopShadowFrame); |
| irb_->CreateCall(intr); |
| } |
| |
| ::llvm::Value* MirConverter::EmitCopy(::llvm::ArrayRef< ::llvm::Value*> src, |
| RegLocation loc) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| if (loc.wide) { |
| if (loc.fp) { |
| id = art::llvm::IntrinsicHelper::CopyDouble; |
| } else { |
| id = art::llvm::IntrinsicHelper::CopyLong; |
| } |
| } else { |
| if (loc.fp) { |
| id = art::llvm::IntrinsicHelper::CopyFloat; |
| } else if (loc.ref) { |
| id = art::llvm::IntrinsicHelper::CopyObj; |
| } else { |
| id = art::llvm::IntrinsicHelper::CopyInt; |
| } |
| } |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| return irb_->CreateCall(intr, src); |
| } |
| |
| void MirConverter::ConvertMoveException(RegLocation rl_dest) { |
| ::llvm::Function* func = intrinsic_helper_->GetIntrinsicFunction( |
| art::llvm::IntrinsicHelper::GetException); |
| ::llvm::Value* res = irb_->CreateCall(func); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertThrow(RegLocation rl_src) { |
| ::llvm::Value* src = GetLLVMValue(rl_src.orig_sreg); |
| ::llvm::Function* func = intrinsic_helper_->GetIntrinsicFunction( |
| art::llvm::IntrinsicHelper::HLThrowException); |
| irb_->CreateCall(func, src); |
| } |
| |
| void MirConverter::ConvertMonitorEnterExit(int opt_flags, |
| art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_src) { |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(opt_flags)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| ::llvm::Function* func = intrinsic_helper_->GetIntrinsicFunction(id); |
| irb_->CreateCall(func, args); |
| } |
| |
| void MirConverter::ConvertArrayLength(int opt_flags, |
| RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(opt_flags)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| ::llvm::Function* func = intrinsic_helper_->GetIntrinsicFunction( |
| art::llvm::IntrinsicHelper::OptArrayLength); |
| ::llvm::Value* res = irb_->CreateCall(func, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::EmitSuspendCheck() { |
| art::llvm::IntrinsicHelper::IntrinsicId id = |
| art::llvm::IntrinsicHelper::CheckSuspend; |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| irb_->CreateCall(intr); |
| } |
| |
| ::llvm::Value* MirConverter::ConvertCompare(ConditionCode cc, |
| ::llvm::Value* src1, ::llvm::Value* src2) { |
| ::llvm::Value* res = NULL; |
| DCHECK_EQ(src1->getType(), src2->getType()); |
| switch (cc) { |
| case kCondEq: res = irb_->CreateICmpEQ(src1, src2); break; |
| case kCondNe: res = irb_->CreateICmpNE(src1, src2); break; |
| case kCondLt: res = irb_->CreateICmpSLT(src1, src2); break; |
| case kCondGe: res = irb_->CreateICmpSGE(src1, src2); break; |
| case kCondGt: res = irb_->CreateICmpSGT(src1, src2); break; |
| case kCondLe: res = irb_->CreateICmpSLE(src1, src2); break; |
| default: LOG(FATAL) << "Unexpected cc value " << cc; |
| } |
| return res; |
| } |
| |
| void MirConverter::ConvertCompareAndBranch(BasicBlock* bb, MIR* mir, |
| ConditionCode cc, RegLocation rl_src1, RegLocation rl_src2) { |
| if (bb->taken->start_offset <= mir->offset) { |
| EmitSuspendCheck(); |
| } |
| ::llvm::Value* src1 = GetLLVMValue(rl_src1.orig_sreg); |
| ::llvm::Value* src2 = GetLLVMValue(rl_src2.orig_sreg); |
| ::llvm::Value* cond_value = ConvertCompare(cc, src1, src2); |
| cond_value->setName(StringPrintf("t%d", temp_name_++)); |
| irb_->CreateCondBr(cond_value, GetLLVMBlock(bb->taken->id), |
| GetLLVMBlock(bb->fall_through->id)); |
| // Don't redo the fallthrough branch in the BB driver |
| bb->fall_through = NULL; |
| } |
| |
| void MirConverter::ConvertCompareZeroAndBranch(BasicBlock* bb, |
| MIR* mir, ConditionCode cc, RegLocation rl_src1) { |
| if (bb->taken->start_offset <= mir->offset) { |
| EmitSuspendCheck(); |
| } |
| ::llvm::Value* src1 = GetLLVMValue(rl_src1.orig_sreg); |
| ::llvm::Value* src2; |
| if (rl_src1.ref) { |
| src2 = irb_->getJNull(); |
| } else { |
| src2 = irb_->getInt32(0); |
| } |
| ::llvm::Value* cond_value = ConvertCompare(cc, src1, src2); |
| irb_->CreateCondBr(cond_value, GetLLVMBlock(bb->taken->id), |
| GetLLVMBlock(bb->fall_through->id)); |
| // Don't redo the fallthrough branch in the BB driver |
| bb->fall_through = NULL; |
| } |
| |
| ::llvm::Value* MirConverter::GenDivModOp(bool is_div, bool is_long, |
| ::llvm::Value* src1, ::llvm::Value* src2) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| if (is_long) { |
| if (is_div) { |
| id = art::llvm::IntrinsicHelper::DivLong; |
| } else { |
| id = art::llvm::IntrinsicHelper::RemLong; |
| } |
| } else { |
| if (is_div) { |
| id = art::llvm::IntrinsicHelper::DivInt; |
| } else { |
| id = art::llvm::IntrinsicHelper::RemInt; |
| } |
| } |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2>args; |
| args.push_back(src1); |
| args.push_back(src2); |
| return irb_->CreateCall(intr, args); |
| } |
| |
| ::llvm::Value* MirConverter::GenArithOp(OpKind op, bool is_long, |
| ::llvm::Value* src1, ::llvm::Value* src2) { |
| ::llvm::Value* res = NULL; |
| switch (op) { |
| case kOpAdd: res = irb_->CreateAdd(src1, src2); break; |
| case kOpSub: res = irb_->CreateSub(src1, src2); break; |
| case kOpRsub: res = irb_->CreateSub(src2, src1); break; |
| case kOpMul: res = irb_->CreateMul(src1, src2); break; |
| case kOpOr: res = irb_->CreateOr(src1, src2); break; |
| case kOpAnd: res = irb_->CreateAnd(src1, src2); break; |
| case kOpXor: res = irb_->CreateXor(src1, src2); break; |
| case kOpDiv: res = GenDivModOp(true, is_long, src1, src2); break; |
| case kOpRem: res = GenDivModOp(false, is_long, src1, src2); break; |
| case kOpLsl: res = irb_->CreateShl(src1, src2); break; |
| case kOpLsr: res = irb_->CreateLShr(src1, src2); break; |
| case kOpAsr: res = irb_->CreateAShr(src1, src2); break; |
| default: |
| LOG(FATAL) << "Invalid op " << op; |
| } |
| return res; |
| } |
| |
| void MirConverter::ConvertFPArithOp(OpKind op, RegLocation rl_dest, |
| RegLocation rl_src1, RegLocation rl_src2) { |
| ::llvm::Value* src1 = GetLLVMValue(rl_src1.orig_sreg); |
| ::llvm::Value* src2 = GetLLVMValue(rl_src2.orig_sreg); |
| ::llvm::Value* res = NULL; |
| switch (op) { |
| case kOpAdd: res = irb_->CreateFAdd(src1, src2); break; |
| case kOpSub: res = irb_->CreateFSub(src1, src2); break; |
| case kOpMul: res = irb_->CreateFMul(src1, src2); break; |
| case kOpDiv: res = irb_->CreateFDiv(src1, src2); break; |
| case kOpRem: res = irb_->CreateFRem(src1, src2); break; |
| default: |
| LOG(FATAL) << "Invalid op " << op; |
| } |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertShift(art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2) { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2>args; |
| args.push_back(GetLLVMValue(rl_src1.orig_sreg)); |
| args.push_back(GetLLVMValue(rl_src2.orig_sreg)); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertShiftLit(art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_dest, RegLocation rl_src, int shift_amount) { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2>args; |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| args.push_back(irb_->getInt32(shift_amount)); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertArithOp(OpKind op, RegLocation rl_dest, |
| RegLocation rl_src1, RegLocation rl_src2) { |
| ::llvm::Value* src1 = GetLLVMValue(rl_src1.orig_sreg); |
| ::llvm::Value* src2 = GetLLVMValue(rl_src2.orig_sreg); |
| DCHECK_EQ(src1->getType(), src2->getType()); |
| ::llvm::Value* res = GenArithOp(op, rl_dest.wide, src1, src2); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertArithOpLit(OpKind op, RegLocation rl_dest, |
| RegLocation rl_src1, int32_t imm) { |
| ::llvm::Value* src1 = GetLLVMValue(rl_src1.orig_sreg); |
| ::llvm::Value* src2 = irb_->getInt32(imm); |
| ::llvm::Value* res = GenArithOp(op, rl_dest.wide, src1, src2); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| /* |
| * Process arguments for invoke. Note: this code is also used to |
| * collect and process arguments for NEW_FILLED_ARRAY and NEW_FILLED_ARRAY_RANGE. |
| * The requirements are similar. |
| */ |
| void MirConverter::ConvertInvoke(BasicBlock* bb, MIR* mir, |
| InvokeType invoke_type, bool is_range, bool is_filled_new_array) { |
| CallInfo* info = mir_graph_->NewMemCallInfo(bb, mir, invoke_type, is_range); |
| ::llvm::SmallVector< ::llvm::Value*, 10> args; |
| // Insert the invoke_type |
| args.push_back(irb_->getInt32(static_cast<int>(invoke_type))); |
| // Insert the method_idx |
| args.push_back(irb_->getInt32(info->index)); |
| // Insert the optimization flags |
| args.push_back(irb_->getInt32(info->opt_flags)); |
| // Now, insert the actual arguments |
| for (int i = 0; i < info->num_arg_words;) { |
| ::llvm::Value* val = GetLLVMValue(info->args[i].orig_sreg); |
| args.push_back(val); |
| i += info->args[i].wide ? 2 : 1; |
| } |
| /* |
| * Choose the invoke return type based on actual usage. Note: may |
| * be different than shorty. For example, if a function return value |
| * is not used, we'll treat this as a void invoke. |
| */ |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| if (is_filled_new_array) { |
| id = art::llvm::IntrinsicHelper::HLFilledNewArray; |
| } else if (info->result.location == kLocInvalid) { |
| id = art::llvm::IntrinsicHelper::HLInvokeVoid; |
| } else { |
| if (info->result.wide) { |
| if (info->result.fp) { |
| id = art::llvm::IntrinsicHelper::HLInvokeDouble; |
| } else { |
| id = art::llvm::IntrinsicHelper::HLInvokeLong; |
| } |
| } else if (info->result.ref) { |
| id = art::llvm::IntrinsicHelper::HLInvokeObj; |
| } else if (info->result.fp) { |
| id = art::llvm::IntrinsicHelper::HLInvokeFloat; |
| } else { |
| id = art::llvm::IntrinsicHelper::HLInvokeInt; |
| } |
| } |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| if (info->result.location != kLocInvalid) { |
| DefineValue(res, info->result.orig_sreg); |
| } |
| } |
| |
| void MirConverter::ConvertConstObject(uint32_t idx, |
| art::llvm::IntrinsicHelper::IntrinsicId id, RegLocation rl_dest) { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* index = irb_->getInt32(idx); |
| ::llvm::Value* res = irb_->CreateCall(intr, index); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertCheckCast(uint32_t type_idx, RegLocation rl_src) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| id = art::llvm::IntrinsicHelper::HLCheckCast; |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(type_idx)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| irb_->CreateCall(intr, args); |
| } |
| |
| void MirConverter::ConvertNewInstance(uint32_t type_idx, RegLocation rl_dest) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| id = art::llvm::IntrinsicHelper::NewInstance; |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* index = irb_->getInt32(type_idx); |
| ::llvm::Value* res = irb_->CreateCall(intr, index); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertNewArray(uint32_t type_idx, |
| RegLocation rl_dest, RegLocation rl_src) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| id = art::llvm::IntrinsicHelper::NewArray; |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(type_idx)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertAget(int opt_flags, |
| art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_dest, RegLocation rl_array, RegLocation rl_index) { |
| ::llvm::SmallVector< ::llvm::Value*, 3> args; |
| args.push_back(irb_->getInt32(opt_flags)); |
| args.push_back(GetLLVMValue(rl_array.orig_sreg)); |
| args.push_back(GetLLVMValue(rl_index.orig_sreg)); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertAput(int opt_flags, |
| art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_src, RegLocation rl_array, RegLocation rl_index) { |
| ::llvm::SmallVector< ::llvm::Value*, 4> args; |
| args.push_back(irb_->getInt32(opt_flags)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| args.push_back(GetLLVMValue(rl_array.orig_sreg)); |
| args.push_back(GetLLVMValue(rl_index.orig_sreg)); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| irb_->CreateCall(intr, args); |
| } |
| |
| void MirConverter::ConvertIget(int opt_flags, |
| art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_dest, RegLocation rl_obj, int field_index) { |
| ::llvm::SmallVector< ::llvm::Value*, 3> args; |
| args.push_back(irb_->getInt32(opt_flags)); |
| args.push_back(GetLLVMValue(rl_obj.orig_sreg)); |
| args.push_back(irb_->getInt32(field_index)); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertIput(int opt_flags, |
| art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_src, RegLocation rl_obj, int field_index) { |
| ::llvm::SmallVector< ::llvm::Value*, 4> args; |
| args.push_back(irb_->getInt32(opt_flags)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| args.push_back(GetLLVMValue(rl_obj.orig_sreg)); |
| args.push_back(irb_->getInt32(field_index)); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| irb_->CreateCall(intr, args); |
| } |
| |
| void MirConverter::ConvertInstanceOf(uint32_t type_idx, |
| RegLocation rl_dest, RegLocation rl_src) { |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| id = art::llvm::IntrinsicHelper::InstanceOf; |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(irb_->getInt32(type_idx)); |
| args.push_back(GetLLVMValue(rl_src.orig_sreg)); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertIntToLong(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* res = irb_->CreateSExt(GetLLVMValue(rl_src.orig_sreg), |
| irb_->getInt64Ty()); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertLongToInt(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* src = GetLLVMValue(rl_src.orig_sreg); |
| ::llvm::Value* res = irb_->CreateTrunc(src, irb_->getInt32Ty()); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertFloatToDouble(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* src = GetLLVMValue(rl_src.orig_sreg); |
| ::llvm::Value* res = irb_->CreateFPExt(src, irb_->getDoubleTy()); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertDoubleToFloat(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* src = GetLLVMValue(rl_src.orig_sreg); |
| ::llvm::Value* res = irb_->CreateFPTrunc(src, irb_->getFloatTy()); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertWideComparison(art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_dest, RegLocation rl_src1, |
| RegLocation rl_src2) { |
| DCHECK_EQ(rl_src1.fp, rl_src2.fp); |
| DCHECK_EQ(rl_src1.wide, rl_src2.wide); |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::SmallVector< ::llvm::Value*, 2> args; |
| args.push_back(GetLLVMValue(rl_src1.orig_sreg)); |
| args.push_back(GetLLVMValue(rl_src2.orig_sreg)); |
| ::llvm::Value* res = irb_->CreateCall(intr, args); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertIntNarrowing(RegLocation rl_dest, RegLocation rl_src, |
| art::llvm::IntrinsicHelper::IntrinsicId id) { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* res = |
| irb_->CreateCall(intr, GetLLVMValue(rl_src.orig_sreg)); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertNeg(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* res = irb_->CreateNeg(GetLLVMValue(rl_src.orig_sreg)); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertIntToFP(::llvm::Type* ty, RegLocation rl_dest, |
| RegLocation rl_src) { |
| ::llvm::Value* res = |
| irb_->CreateSIToFP(GetLLVMValue(rl_src.orig_sreg), ty); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertFPToInt(art::llvm::IntrinsicHelper::IntrinsicId id, |
| RegLocation rl_dest, |
| RegLocation rl_src) { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* res = irb_->CreateCall(intr, GetLLVMValue(rl_src.orig_sreg)); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| |
| void MirConverter::ConvertNegFP(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* res = |
| irb_->CreateFNeg(GetLLVMValue(rl_src.orig_sreg)); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::ConvertNot(RegLocation rl_dest, RegLocation rl_src) { |
| ::llvm::Value* src = GetLLVMValue(rl_src.orig_sreg); |
| ::llvm::Value* res = irb_->CreateXor(src, static_cast<uint64_t>(-1)); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| |
| void MirConverter::EmitConstructorBarrier() { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction( |
| art::llvm::IntrinsicHelper::ConstructorBarrier); |
| irb_->CreateCall(intr); |
| } |
| |
| /* |
| * Target-independent code generation. Use only high-level |
| * load/store utilities here, or target-dependent genXX() handlers |
| * when necessary. |
| */ |
| bool MirConverter::ConvertMIRNode(MIR* mir, BasicBlock* bb, |
| ::llvm::BasicBlock* llvm_bb) { |
| bool res = false; // Assume success |
| RegLocation rl_src[3]; |
| RegLocation rl_dest = mir_graph_->GetBadLoc(); |
| Instruction::Code opcode = mir->dalvikInsn.opcode; |
| int op_val = opcode; |
| uint32_t vB = mir->dalvikInsn.vB; |
| uint32_t vC = mir->dalvikInsn.vC; |
| int opt_flags = mir->optimization_flags; |
| |
| if (cu_->verbose) { |
| if (op_val < kMirOpFirst) { |
| LOG(INFO) << ".. " << Instruction::Name(opcode) << " 0x" << std::hex << op_val; |
| } else { |
| LOG(INFO) << mir_graph_->extended_mir_op_names_[op_val - kMirOpFirst] << " 0x" << std::hex << op_val; |
| } |
| } |
| |
| /* Prep Src and Dest locations */ |
| int next_sreg = 0; |
| int next_loc = 0; |
| int attrs = mir_graph_->oat_data_flow_attributes_[opcode]; |
| rl_src[0] = rl_src[1] = rl_src[2] = mir_graph_->GetBadLoc(); |
| if (attrs & DF_UA) { |
| if (attrs & DF_A_WIDE) { |
| rl_src[next_loc++] = mir_graph_->GetSrcWide(mir, next_sreg); |
| next_sreg+= 2; |
| } else { |
| rl_src[next_loc++] = mir_graph_->GetSrc(mir, next_sreg); |
| next_sreg++; |
| } |
| } |
| if (attrs & DF_UB) { |
| if (attrs & DF_B_WIDE) { |
| rl_src[next_loc++] = mir_graph_->GetSrcWide(mir, next_sreg); |
| next_sreg+= 2; |
| } else { |
| rl_src[next_loc++] = mir_graph_->GetSrc(mir, next_sreg); |
| next_sreg++; |
| } |
| } |
| if (attrs & DF_UC) { |
| if (attrs & DF_C_WIDE) { |
| rl_src[next_loc++] = mir_graph_->GetSrcWide(mir, next_sreg); |
| } else { |
| rl_src[next_loc++] = mir_graph_->GetSrc(mir, next_sreg); |
| } |
| } |
| if (attrs & DF_DA) { |
| if (attrs & DF_A_WIDE) { |
| rl_dest = mir_graph_->GetDestWide(mir); |
| } else { |
| rl_dest = mir_graph_->GetDest(mir); |
| } |
| } |
| |
| switch (opcode) { |
| case Instruction::NOP: |
| break; |
| |
| case Instruction::MOVE: |
| case Instruction::MOVE_OBJECT: |
| case Instruction::MOVE_16: |
| case Instruction::MOVE_OBJECT_16: |
| case Instruction::MOVE_OBJECT_FROM16: |
| case Instruction::MOVE_FROM16: |
| case Instruction::MOVE_WIDE: |
| case Instruction::MOVE_WIDE_16: |
| case Instruction::MOVE_WIDE_FROM16: { |
| /* |
| * Moves/copies are meaningless in pure SSA register form, |
| * but we need to preserve them for the conversion back into |
| * MIR (at least until we stop using the Dalvik register maps). |
| * Insert a dummy intrinsic copy call, which will be recognized |
| * by the quick path and removed by the portable path. |
| */ |
| ::llvm::Value* src = GetLLVMValue(rl_src[0].orig_sreg); |
| ::llvm::Value* res = EmitCopy(src, rl_dest); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| break; |
| |
| case Instruction::CONST: |
| case Instruction::CONST_4: |
| case Instruction::CONST_16: { |
| ::llvm::Constant* imm_value = irb_->getJInt(vB); |
| ::llvm::Value* res = EmitConst(imm_value, rl_dest); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| break; |
| |
| case Instruction::CONST_WIDE_16: |
| case Instruction::CONST_WIDE_32: { |
| // Sign extend to 64 bits |
| int64_t imm = static_cast<int32_t>(vB); |
| ::llvm::Constant* imm_value = irb_->getJLong(imm); |
| ::llvm::Value* res = EmitConst(imm_value, rl_dest); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| break; |
| |
| case Instruction::CONST_HIGH16: { |
| ::llvm::Constant* imm_value = irb_->getJInt(vB << 16); |
| ::llvm::Value* res = EmitConst(imm_value, rl_dest); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| break; |
| |
| case Instruction::CONST_WIDE: { |
| ::llvm::Constant* imm_value = |
| irb_->getJLong(mir->dalvikInsn.vB_wide); |
| ::llvm::Value* res = EmitConst(imm_value, rl_dest); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| break; |
| case Instruction::CONST_WIDE_HIGH16: { |
| int64_t imm = static_cast<int64_t>(vB) << 48; |
| ::llvm::Constant* imm_value = irb_->getJLong(imm); |
| ::llvm::Value* res = EmitConst(imm_value, rl_dest); |
| DefineValue(res, rl_dest.orig_sreg); |
| } |
| break; |
| |
| case Instruction::SPUT_OBJECT: |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputObject, |
| rl_src[0]); |
| break; |
| case Instruction::SPUT: |
| if (rl_src[0].fp) { |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputFloat, |
| rl_src[0]); |
| } else { |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSput, rl_src[0]); |
| } |
| break; |
| case Instruction::SPUT_BOOLEAN: |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputBoolean, |
| rl_src[0]); |
| break; |
| case Instruction::SPUT_BYTE: |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputByte, rl_src[0]); |
| break; |
| case Instruction::SPUT_CHAR: |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputChar, rl_src[0]); |
| break; |
| case Instruction::SPUT_SHORT: |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputShort, rl_src[0]); |
| break; |
| case Instruction::SPUT_WIDE: |
| if (rl_src[0].fp) { |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputDouble, |
| rl_src[0]); |
| } else { |
| ConvertSput(vB, art::llvm::IntrinsicHelper::HLSputWide, |
| rl_src[0]); |
| } |
| break; |
| |
| case Instruction::SGET_OBJECT: |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetObject, rl_dest); |
| break; |
| case Instruction::SGET: |
| if (rl_dest.fp) { |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetFloat, rl_dest); |
| } else { |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSget, rl_dest); |
| } |
| break; |
| case Instruction::SGET_BOOLEAN: |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetBoolean, rl_dest); |
| break; |
| case Instruction::SGET_BYTE: |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetByte, rl_dest); |
| break; |
| case Instruction::SGET_CHAR: |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetChar, rl_dest); |
| break; |
| case Instruction::SGET_SHORT: |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetShort, rl_dest); |
| break; |
| case Instruction::SGET_WIDE: |
| if (rl_dest.fp) { |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetDouble, |
| rl_dest); |
| } else { |
| ConvertSget(vB, art::llvm::IntrinsicHelper::HLSgetWide, rl_dest); |
| } |
| break; |
| |
| case Instruction::RETURN_WIDE: |
| case Instruction::RETURN: |
| case Instruction::RETURN_OBJECT: { |
| if (!mir_graph_->MethodIsLeaf()) { |
| EmitSuspendCheck(); |
| } |
| EmitPopShadowFrame(); |
| irb_->CreateRet(GetLLVMValue(rl_src[0].orig_sreg)); |
| DCHECK(bb->terminated_by_return); |
| } |
| break; |
| |
| case Instruction::RETURN_VOID: { |
| if (((cu_->access_flags & kAccConstructor) != 0) && |
| cu_->compiler_driver->RequiresConstructorBarrier(Thread::Current(), |
| cu_->dex_file, |
| cu_->class_def_idx)) { |
| EmitConstructorBarrier(); |
| } |
| if (!mir_graph_->MethodIsLeaf()) { |
| EmitSuspendCheck(); |
| } |
| EmitPopShadowFrame(); |
| irb_->CreateRetVoid(); |
| DCHECK(bb->terminated_by_return); |
| } |
| break; |
| |
| case Instruction::IF_EQ: |
| ConvertCompareAndBranch(bb, mir, kCondEq, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::IF_NE: |
| ConvertCompareAndBranch(bb, mir, kCondNe, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::IF_LT: |
| ConvertCompareAndBranch(bb, mir, kCondLt, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::IF_GE: |
| ConvertCompareAndBranch(bb, mir, kCondGe, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::IF_GT: |
| ConvertCompareAndBranch(bb, mir, kCondGt, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::IF_LE: |
| ConvertCompareAndBranch(bb, mir, kCondLe, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::IF_EQZ: |
| ConvertCompareZeroAndBranch(bb, mir, kCondEq, rl_src[0]); |
| break; |
| case Instruction::IF_NEZ: |
| ConvertCompareZeroAndBranch(bb, mir, kCondNe, rl_src[0]); |
| break; |
| case Instruction::IF_LTZ: |
| ConvertCompareZeroAndBranch(bb, mir, kCondLt, rl_src[0]); |
| break; |
| case Instruction::IF_GEZ: |
| ConvertCompareZeroAndBranch(bb, mir, kCondGe, rl_src[0]); |
| break; |
| case Instruction::IF_GTZ: |
| ConvertCompareZeroAndBranch(bb, mir, kCondGt, rl_src[0]); |
| break; |
| case Instruction::IF_LEZ: |
| ConvertCompareZeroAndBranch(bb, mir, kCondLe, rl_src[0]); |
| break; |
| |
| case Instruction::GOTO: |
| case Instruction::GOTO_16: |
| case Instruction::GOTO_32: { |
| if (bb->taken->start_offset <= bb->start_offset) { |
| EmitSuspendCheck(); |
| } |
| irb_->CreateBr(GetLLVMBlock(bb->taken->id)); |
| } |
| break; |
| |
| case Instruction::ADD_LONG: |
| case Instruction::ADD_LONG_2ADDR: |
| case Instruction::ADD_INT: |
| case Instruction::ADD_INT_2ADDR: |
| ConvertArithOp(kOpAdd, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::SUB_LONG: |
| case Instruction::SUB_LONG_2ADDR: |
| case Instruction::SUB_INT: |
| case Instruction::SUB_INT_2ADDR: |
| ConvertArithOp(kOpSub, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::MUL_LONG: |
| case Instruction::MUL_LONG_2ADDR: |
| case Instruction::MUL_INT: |
| case Instruction::MUL_INT_2ADDR: |
| ConvertArithOp(kOpMul, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::DIV_LONG: |
| case Instruction::DIV_LONG_2ADDR: |
| case Instruction::DIV_INT: |
| case Instruction::DIV_INT_2ADDR: |
| ConvertArithOp(kOpDiv, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::REM_LONG: |
| case Instruction::REM_LONG_2ADDR: |
| case Instruction::REM_INT: |
| case Instruction::REM_INT_2ADDR: |
| ConvertArithOp(kOpRem, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::AND_LONG: |
| case Instruction::AND_LONG_2ADDR: |
| case Instruction::AND_INT: |
| case Instruction::AND_INT_2ADDR: |
| ConvertArithOp(kOpAnd, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::OR_LONG: |
| case Instruction::OR_LONG_2ADDR: |
| case Instruction::OR_INT: |
| case Instruction::OR_INT_2ADDR: |
| ConvertArithOp(kOpOr, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::XOR_LONG: |
| case Instruction::XOR_LONG_2ADDR: |
| case Instruction::XOR_INT: |
| case Instruction::XOR_INT_2ADDR: |
| ConvertArithOp(kOpXor, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::SHL_LONG: |
| case Instruction::SHL_LONG_2ADDR: |
| ConvertShift(art::llvm::IntrinsicHelper::SHLLong, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::SHL_INT: |
| case Instruction::SHL_INT_2ADDR: |
| ConvertShift(art::llvm::IntrinsicHelper::SHLInt, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::SHR_LONG: |
| case Instruction::SHR_LONG_2ADDR: |
| ConvertShift(art::llvm::IntrinsicHelper::SHRLong, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::SHR_INT: |
| case Instruction::SHR_INT_2ADDR: |
| ConvertShift(art::llvm::IntrinsicHelper::SHRInt, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::USHR_LONG: |
| case Instruction::USHR_LONG_2ADDR: |
| ConvertShift(art::llvm::IntrinsicHelper::USHRLong, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::USHR_INT: |
| case Instruction::USHR_INT_2ADDR: |
| ConvertShift(art::llvm::IntrinsicHelper::USHRInt, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::ADD_INT_LIT16: |
| case Instruction::ADD_INT_LIT8: |
| ConvertArithOpLit(kOpAdd, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::RSUB_INT: |
| case Instruction::RSUB_INT_LIT8: |
| ConvertArithOpLit(kOpRsub, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::MUL_INT_LIT16: |
| case Instruction::MUL_INT_LIT8: |
| ConvertArithOpLit(kOpMul, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::DIV_INT_LIT16: |
| case Instruction::DIV_INT_LIT8: |
| ConvertArithOpLit(kOpDiv, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::REM_INT_LIT16: |
| case Instruction::REM_INT_LIT8: |
| ConvertArithOpLit(kOpRem, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::AND_INT_LIT16: |
| case Instruction::AND_INT_LIT8: |
| ConvertArithOpLit(kOpAnd, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::OR_INT_LIT16: |
| case Instruction::OR_INT_LIT8: |
| ConvertArithOpLit(kOpOr, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::XOR_INT_LIT16: |
| case Instruction::XOR_INT_LIT8: |
| ConvertArithOpLit(kOpXor, rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::SHL_INT_LIT8: |
| ConvertShiftLit(art::llvm::IntrinsicHelper::SHLInt, |
| rl_dest, rl_src[0], vC & 0x1f); |
| break; |
| case Instruction::SHR_INT_LIT8: |
| ConvertShiftLit(art::llvm::IntrinsicHelper::SHRInt, |
| rl_dest, rl_src[0], vC & 0x1f); |
| break; |
| case Instruction::USHR_INT_LIT8: |
| ConvertShiftLit(art::llvm::IntrinsicHelper::USHRInt, |
| rl_dest, rl_src[0], vC & 0x1f); |
| break; |
| |
| case Instruction::ADD_FLOAT: |
| case Instruction::ADD_FLOAT_2ADDR: |
| case Instruction::ADD_DOUBLE: |
| case Instruction::ADD_DOUBLE_2ADDR: |
| ConvertFPArithOp(kOpAdd, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::SUB_FLOAT: |
| case Instruction::SUB_FLOAT_2ADDR: |
| case Instruction::SUB_DOUBLE: |
| case Instruction::SUB_DOUBLE_2ADDR: |
| ConvertFPArithOp(kOpSub, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::MUL_FLOAT: |
| case Instruction::MUL_FLOAT_2ADDR: |
| case Instruction::MUL_DOUBLE: |
| case Instruction::MUL_DOUBLE_2ADDR: |
| ConvertFPArithOp(kOpMul, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::DIV_FLOAT: |
| case Instruction::DIV_FLOAT_2ADDR: |
| case Instruction::DIV_DOUBLE: |
| case Instruction::DIV_DOUBLE_2ADDR: |
| ConvertFPArithOp(kOpDiv, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::REM_FLOAT: |
| case Instruction::REM_FLOAT_2ADDR: |
| case Instruction::REM_DOUBLE: |
| case Instruction::REM_DOUBLE_2ADDR: |
| ConvertFPArithOp(kOpRem, rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::INVOKE_STATIC: |
| ConvertInvoke(bb, mir, kStatic, false /*range*/, |
| false /* NewFilledArray */); |
| break; |
| case Instruction::INVOKE_STATIC_RANGE: |
| ConvertInvoke(bb, mir, kStatic, true /*range*/, |
| false /* NewFilledArray */); |
| break; |
| |
| case Instruction::INVOKE_DIRECT: |
| ConvertInvoke(bb, mir, kDirect, false /*range*/, |
| false /* NewFilledArray */); |
| break; |
| case Instruction::INVOKE_DIRECT_RANGE: |
| ConvertInvoke(bb, mir, kDirect, true /*range*/, |
| false /* NewFilledArray */); |
| break; |
| |
| case Instruction::INVOKE_VIRTUAL: |
| ConvertInvoke(bb, mir, kVirtual, false /*range*/, |
| false /* NewFilledArray */); |
| break; |
| case Instruction::INVOKE_VIRTUAL_RANGE: |
| ConvertInvoke(bb, mir, kVirtual, true /*range*/, |
| false /* NewFilledArray */); |
| break; |
| |
| case Instruction::INVOKE_SUPER: |
| ConvertInvoke(bb, mir, kSuper, false /*range*/, |
| false /* NewFilledArray */); |
| break; |
| case Instruction::INVOKE_SUPER_RANGE: |
| ConvertInvoke(bb, mir, kSuper, true /*range*/, |
| false /* NewFilledArray */); |
| break; |
| |
| case Instruction::INVOKE_INTERFACE: |
| ConvertInvoke(bb, mir, kInterface, false /*range*/, |
| false /* NewFilledArray */); |
| break; |
| case Instruction::INVOKE_INTERFACE_RANGE: |
| ConvertInvoke(bb, mir, kInterface, true /*range*/, |
| false /* NewFilledArray */); |
| break; |
| case Instruction::FILLED_NEW_ARRAY: |
| ConvertInvoke(bb, mir, kInterface, false /*range*/, |
| true /* NewFilledArray */); |
| break; |
| case Instruction::FILLED_NEW_ARRAY_RANGE: |
| ConvertInvoke(bb, mir, kInterface, true /*range*/, |
| true /* NewFilledArray */); |
| break; |
| |
| case Instruction::CONST_STRING: |
| case Instruction::CONST_STRING_JUMBO: |
| ConvertConstObject(vB, art::llvm::IntrinsicHelper::ConstString, |
| rl_dest); |
| break; |
| |
| case Instruction::CONST_CLASS: |
| ConvertConstObject(vB, art::llvm::IntrinsicHelper::ConstClass, |
| rl_dest); |
| break; |
| |
| case Instruction::CHECK_CAST: |
| ConvertCheckCast(vB, rl_src[0]); |
| break; |
| |
| case Instruction::NEW_INSTANCE: |
| ConvertNewInstance(vB, rl_dest); |
| break; |
| |
| case Instruction::MOVE_EXCEPTION: |
| ConvertMoveException(rl_dest); |
| break; |
| |
| case Instruction::THROW: |
| ConvertThrow(rl_src[0]); |
| /* |
| * If this throw is standalone, terminate. |
| * If it might rethrow, force termination |
| * of the following block. |
| */ |
| if (bb->fall_through == NULL) { |
| irb_->CreateUnreachable(); |
| } else { |
| bb->fall_through->fall_through = NULL; |
| bb->fall_through->taken = NULL; |
| } |
| break; |
| |
| case Instruction::MOVE_RESULT_WIDE: |
| case Instruction::MOVE_RESULT: |
| case Instruction::MOVE_RESULT_OBJECT: |
| /* |
| * All move_results should have been folded into the preceeding invoke. |
| */ |
| LOG(FATAL) << "Unexpected move_result"; |
| break; |
| |
| case Instruction::MONITOR_ENTER: |
| ConvertMonitorEnterExit(opt_flags, |
| art::llvm::IntrinsicHelper::MonitorEnter, |
| rl_src[0]); |
| break; |
| |
| case Instruction::MONITOR_EXIT: |
| ConvertMonitorEnterExit(opt_flags, |
| art::llvm::IntrinsicHelper::MonitorExit, |
| rl_src[0]); |
| break; |
| |
| case Instruction::ARRAY_LENGTH: |
| ConvertArrayLength(opt_flags, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::NEW_ARRAY: |
| ConvertNewArray(vC, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::INSTANCE_OF: |
| ConvertInstanceOf(vC, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::AGET: |
| if (rl_dest.fp) { |
| ConvertAget(opt_flags, |
| art::llvm::IntrinsicHelper::HLArrayGetFloat, |
| rl_dest, rl_src[0], rl_src[1]); |
| } else { |
| ConvertAget(opt_flags, art::llvm::IntrinsicHelper::HLArrayGet, |
| rl_dest, rl_src[0], rl_src[1]); |
| } |
| break; |
| case Instruction::AGET_OBJECT: |
| ConvertAget(opt_flags, art::llvm::IntrinsicHelper::HLArrayGetObject, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::AGET_BOOLEAN: |
| ConvertAget(opt_flags, |
| art::llvm::IntrinsicHelper::HLArrayGetBoolean, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::AGET_BYTE: |
| ConvertAget(opt_flags, art::llvm::IntrinsicHelper::HLArrayGetByte, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::AGET_CHAR: |
| ConvertAget(opt_flags, art::llvm::IntrinsicHelper::HLArrayGetChar, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::AGET_SHORT: |
| ConvertAget(opt_flags, art::llvm::IntrinsicHelper::HLArrayGetShort, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::AGET_WIDE: |
| if (rl_dest.fp) { |
| ConvertAget(opt_flags, |
| art::llvm::IntrinsicHelper::HLArrayGetDouble, |
| rl_dest, rl_src[0], rl_src[1]); |
| } else { |
| ConvertAget(opt_flags, art::llvm::IntrinsicHelper::HLArrayGetWide, |
| rl_dest, rl_src[0], rl_src[1]); |
| } |
| break; |
| |
| case Instruction::APUT: |
| if (rl_src[0].fp) { |
| ConvertAput(opt_flags, |
| art::llvm::IntrinsicHelper::HLArrayPutFloat, |
| rl_src[0], rl_src[1], rl_src[2]); |
| } else { |
| ConvertAput(opt_flags, art::llvm::IntrinsicHelper::HLArrayPut, |
| rl_src[0], rl_src[1], rl_src[2]); |
| } |
| break; |
| case Instruction::APUT_OBJECT: |
| ConvertAput(opt_flags, art::llvm::IntrinsicHelper::HLArrayPutObject, |
| rl_src[0], rl_src[1], rl_src[2]); |
| break; |
| case Instruction::APUT_BOOLEAN: |
| ConvertAput(opt_flags, |
| art::llvm::IntrinsicHelper::HLArrayPutBoolean, |
| rl_src[0], rl_src[1], rl_src[2]); |
| break; |
| case Instruction::APUT_BYTE: |
| ConvertAput(opt_flags, art::llvm::IntrinsicHelper::HLArrayPutByte, |
| rl_src[0], rl_src[1], rl_src[2]); |
| break; |
| case Instruction::APUT_CHAR: |
| ConvertAput(opt_flags, art::llvm::IntrinsicHelper::HLArrayPutChar, |
| rl_src[0], rl_src[1], rl_src[2]); |
| break; |
| case Instruction::APUT_SHORT: |
| ConvertAput(opt_flags, art::llvm::IntrinsicHelper::HLArrayPutShort, |
| rl_src[0], rl_src[1], rl_src[2]); |
| break; |
| case Instruction::APUT_WIDE: |
| if (rl_src[0].fp) { |
| ConvertAput(opt_flags, |
| art::llvm::IntrinsicHelper::HLArrayPutDouble, |
| rl_src[0], rl_src[1], rl_src[2]); |
| } else { |
| ConvertAput(opt_flags, art::llvm::IntrinsicHelper::HLArrayPutWide, |
| rl_src[0], rl_src[1], rl_src[2]); |
| } |
| break; |
| |
| case Instruction::IGET: |
| if (rl_dest.fp) { |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetFloat, |
| rl_dest, rl_src[0], vC); |
| } else { |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGet, |
| rl_dest, rl_src[0], vC); |
| } |
| break; |
| case Instruction::IGET_OBJECT: |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetObject, |
| rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::IGET_BOOLEAN: |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetBoolean, |
| rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::IGET_BYTE: |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetByte, |
| rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::IGET_CHAR: |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetChar, |
| rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::IGET_SHORT: |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetShort, |
| rl_dest, rl_src[0], vC); |
| break; |
| case Instruction::IGET_WIDE: |
| if (rl_dest.fp) { |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetDouble, |
| rl_dest, rl_src[0], vC); |
| } else { |
| ConvertIget(opt_flags, art::llvm::IntrinsicHelper::HLIGetWide, |
| rl_dest, rl_src[0], vC); |
| } |
| break; |
| case Instruction::IPUT: |
| if (rl_src[0].fp) { |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutFloat, |
| rl_src[0], rl_src[1], vC); |
| } else { |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPut, |
| rl_src[0], rl_src[1], vC); |
| } |
| break; |
| case Instruction::IPUT_OBJECT: |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutObject, |
| rl_src[0], rl_src[1], vC); |
| break; |
| case Instruction::IPUT_BOOLEAN: |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutBoolean, |
| rl_src[0], rl_src[1], vC); |
| break; |
| case Instruction::IPUT_BYTE: |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutByte, |
| rl_src[0], rl_src[1], vC); |
| break; |
| case Instruction::IPUT_CHAR: |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutChar, |
| rl_src[0], rl_src[1], vC); |
| break; |
| case Instruction::IPUT_SHORT: |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutShort, |
| rl_src[0], rl_src[1], vC); |
| break; |
| case Instruction::IPUT_WIDE: |
| if (rl_src[0].fp) { |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutDouble, |
| rl_src[0], rl_src[1], vC); |
| } else { |
| ConvertIput(opt_flags, art::llvm::IntrinsicHelper::HLIPutWide, |
| rl_src[0], rl_src[1], vC); |
| } |
| break; |
| |
| case Instruction::FILL_ARRAY_DATA: |
| ConvertFillArrayData(vB, rl_src[0]); |
| break; |
| |
| case Instruction::LONG_TO_INT: |
| ConvertLongToInt(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::INT_TO_LONG: |
| ConvertIntToLong(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::INT_TO_CHAR: |
| ConvertIntNarrowing(rl_dest, rl_src[0], |
| art::llvm::IntrinsicHelper::IntToChar); |
| break; |
| case Instruction::INT_TO_BYTE: |
| ConvertIntNarrowing(rl_dest, rl_src[0], |
| art::llvm::IntrinsicHelper::IntToByte); |
| break; |
| case Instruction::INT_TO_SHORT: |
| ConvertIntNarrowing(rl_dest, rl_src[0], |
| art::llvm::IntrinsicHelper::IntToShort); |
| break; |
| |
| case Instruction::INT_TO_FLOAT: |
| case Instruction::LONG_TO_FLOAT: |
| ConvertIntToFP(irb_->getFloatTy(), rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::INT_TO_DOUBLE: |
| case Instruction::LONG_TO_DOUBLE: |
| ConvertIntToFP(irb_->getDoubleTy(), rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::FLOAT_TO_DOUBLE: |
| ConvertFloatToDouble(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::DOUBLE_TO_FLOAT: |
| ConvertDoubleToFloat(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::NEG_LONG: |
| case Instruction::NEG_INT: |
| ConvertNeg(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::NEG_FLOAT: |
| case Instruction::NEG_DOUBLE: |
| ConvertNegFP(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::NOT_LONG: |
| case Instruction::NOT_INT: |
| ConvertNot(rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::FLOAT_TO_INT: |
| ConvertFPToInt(art::llvm::IntrinsicHelper::F2I, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::DOUBLE_TO_INT: |
| ConvertFPToInt(art::llvm::IntrinsicHelper::D2I, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::FLOAT_TO_LONG: |
| ConvertFPToInt(art::llvm::IntrinsicHelper::F2L, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::DOUBLE_TO_LONG: |
| ConvertFPToInt(art::llvm::IntrinsicHelper::D2L, rl_dest, rl_src[0]); |
| break; |
| |
| case Instruction::CMPL_FLOAT: |
| ConvertWideComparison(art::llvm::IntrinsicHelper::CmplFloat, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::CMPG_FLOAT: |
| ConvertWideComparison(art::llvm::IntrinsicHelper::CmpgFloat, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::CMPL_DOUBLE: |
| ConvertWideComparison(art::llvm::IntrinsicHelper::CmplDouble, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::CMPG_DOUBLE: |
| ConvertWideComparison(art::llvm::IntrinsicHelper::CmpgDouble, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| case Instruction::CMP_LONG: |
| ConvertWideComparison(art::llvm::IntrinsicHelper::CmpLong, |
| rl_dest, rl_src[0], rl_src[1]); |
| break; |
| |
| case Instruction::PACKED_SWITCH: |
| ConvertPackedSwitch(bb, vB, rl_src[0]); |
| break; |
| |
| case Instruction::SPARSE_SWITCH: |
| ConvertSparseSwitch(bb, vB, rl_src[0]); |
| break; |
| |
| default: |
| UNIMPLEMENTED(FATAL) << "Unsupported Dex opcode 0x" << std::hex << opcode; |
| res = true; |
| } |
| return res; |
| } // NOLINT(readability/fn_size) |
| |
| void MirConverter::SetDexOffset(int32_t offset) { |
| current_dalvik_offset_ = offset; |
| ::llvm::SmallVector< ::llvm::Value*, 1> array_ref; |
| array_ref.push_back(irb_->getInt32(offset)); |
| ::llvm::MDNode* node = ::llvm::MDNode::get(*context_, array_ref); |
| irb_->SetDexOffset(node); |
| } |
| |
| // Attach method info as metadata to special intrinsic |
| void MirConverter::SetMethodInfo() { |
| // We don't want dex offset on this |
| irb_->SetDexOffset(NULL); |
| art::llvm::IntrinsicHelper::IntrinsicId id; |
| id = art::llvm::IntrinsicHelper::MethodInfo; |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Instruction* inst = irb_->CreateCall(intr); |
| ::llvm::SmallVector< ::llvm::Value*, 2> reg_info; |
| reg_info.push_back(irb_->getInt32(cu_->num_ins)); |
| reg_info.push_back(irb_->getInt32(cu_->num_regs)); |
| reg_info.push_back(irb_->getInt32(cu_->num_outs)); |
| reg_info.push_back(irb_->getInt32(cu_->num_compiler_temps)); |
| reg_info.push_back(irb_->getInt32(mir_graph_->GetNumSSARegs())); |
| ::llvm::MDNode* reg_info_node = ::llvm::MDNode::get(*context_, reg_info); |
| inst->setMetadata("RegInfo", reg_info_node); |
| SetDexOffset(current_dalvik_offset_); |
| } |
| |
| void MirConverter::HandlePhiNodes(BasicBlock* bb, ::llvm::BasicBlock* llvm_bb) { |
| SetDexOffset(bb->start_offset); |
| for (MIR* mir = bb->first_mir_insn; mir != NULL; mir = mir->next) { |
| int opcode = mir->dalvikInsn.opcode; |
| if (opcode < kMirOpFirst) { |
| // Stop after first non-pseudo MIR op. |
| continue; |
| } |
| if (opcode != kMirOpPhi) { |
| // Skip other mir Pseudos. |
| continue; |
| } |
| RegLocation rl_dest = mir_graph_->reg_location_[mir->ssa_rep->defs[0]]; |
| /* |
| * The Art compiler's Phi nodes only handle 32-bit operands, |
| * representing wide values using a matched set of Phi nodes |
| * for the lower and upper halves. In the llvm world, we only |
| * want a single Phi for wides. Here we will simply discard |
| * the Phi node representing the high word. |
| */ |
| if (rl_dest.high_word) { |
| continue; // No Phi node - handled via low word |
| } |
| int* incoming = reinterpret_cast<int*>(mir->dalvikInsn.vB); |
| ::llvm::Type* phi_type = |
| LlvmTypeFromLocRec(rl_dest); |
| ::llvm::PHINode* phi = irb_->CreatePHI(phi_type, mir->ssa_rep->num_uses); |
| for (int i = 0; i < mir->ssa_rep->num_uses; i++) { |
| RegLocation loc; |
| // Don't check width here. |
| loc = mir_graph_->GetRawSrc(mir, i); |
| DCHECK_EQ(rl_dest.wide, loc.wide); |
| DCHECK_EQ(rl_dest.wide & rl_dest.high_word, loc.wide & loc.high_word); |
| DCHECK_EQ(rl_dest.fp, loc.fp); |
| DCHECK_EQ(rl_dest.core, loc.core); |
| DCHECK_EQ(rl_dest.ref, loc.ref); |
| SafeMap<unsigned int, unsigned int>::iterator it; |
| it = mir_graph_->block_id_map_.find(incoming[i]); |
| DCHECK(it != mir_graph_->block_id_map_.end()); |
| DCHECK(GetLLVMValue(loc.orig_sreg) != NULL); |
| DCHECK(GetLLVMBlock(it->second) != NULL); |
| phi->addIncoming(GetLLVMValue(loc.orig_sreg), |
| GetLLVMBlock(it->second)); |
| } |
| DefineValueOnly(phi, rl_dest.orig_sreg); |
| } |
| } |
| |
| /* Extended MIR instructions like PHI */ |
| void MirConverter::ConvertExtendedMIR(BasicBlock* bb, MIR* mir, |
| ::llvm::BasicBlock* llvm_bb) { |
| switch (static_cast<ExtendedMIROpcode>(mir->dalvikInsn.opcode)) { |
| case kMirOpPhi: { |
| // The llvm Phi node already emitted - just DefineValue() here. |
| RegLocation rl_dest = mir_graph_->reg_location_[mir->ssa_rep->defs[0]]; |
| if (!rl_dest.high_word) { |
| // Only consider low word of pairs. |
| DCHECK(GetLLVMValue(rl_dest.orig_sreg) != NULL); |
| ::llvm::Value* phi = GetLLVMValue(rl_dest.orig_sreg); |
| if (1) SetVregOnValue(phi, rl_dest.orig_sreg); |
| } |
| break; |
| } |
| case kMirOpCopy: { |
| UNIMPLEMENTED(WARNING) << "unimp kMirOpPhi"; |
| break; |
| } |
| case kMirOpNop: |
| if ((mir == bb->last_mir_insn) && (bb->taken == NULL) && |
| (bb->fall_through == NULL)) { |
| irb_->CreateUnreachable(); |
| } |
| break; |
| |
| // TODO: need GBC intrinsic to take advantage of fused operations |
| case kMirOpFusedCmplFloat: |
| UNIMPLEMENTED(FATAL) << "kMirOpFusedCmpFloat unsupported"; |
| break; |
| case kMirOpFusedCmpgFloat: |
| UNIMPLEMENTED(FATAL) << "kMirOpFusedCmgFloat unsupported"; |
| break; |
| case kMirOpFusedCmplDouble: |
| UNIMPLEMENTED(FATAL) << "kMirOpFusedCmplDouble unsupported"; |
| break; |
| case kMirOpFusedCmpgDouble: |
| UNIMPLEMENTED(FATAL) << "kMirOpFusedCmpgDouble unsupported"; |
| break; |
| case kMirOpFusedCmpLong: |
| UNIMPLEMENTED(FATAL) << "kMirOpLongCmpBranch unsupported"; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* Handle the content in each basic block */ |
| bool MirConverter::BlockBitcodeConversion(BasicBlock* bb) { |
| if (bb->block_type == kDead) return false; |
| ::llvm::BasicBlock* llvm_bb = GetLLVMBlock(bb->id); |
| if (llvm_bb == NULL) { |
| CHECK(bb->block_type == kExitBlock); |
| } else { |
| irb_->SetInsertPoint(llvm_bb); |
| SetDexOffset(bb->start_offset); |
| } |
| |
| if (cu_->verbose) { |
| LOG(INFO) << "................................"; |
| LOG(INFO) << "Block id " << bb->id; |
| if (llvm_bb != NULL) { |
| LOG(INFO) << "label " << llvm_bb->getName().str().c_str(); |
| } else { |
| LOG(INFO) << "llvm_bb is NULL"; |
| } |
| } |
| |
| if (bb->block_type == kEntryBlock) { |
| SetMethodInfo(); |
| |
| { // Allocate shadowframe. |
| art::llvm::IntrinsicHelper::IntrinsicId id = |
| art::llvm::IntrinsicHelper::AllocaShadowFrame; |
| ::llvm::Function* func = intrinsic_helper_->GetIntrinsicFunction(id); |
| ::llvm::Value* entries = irb_->getInt32(cu_->num_dalvik_registers); |
| irb_->CreateCall(func, entries); |
| } |
| |
| { // Store arguments to vregs. |
| uint16_t arg_reg = cu_->num_regs; |
| |
| ::llvm::Function::arg_iterator arg_iter(func_->arg_begin()); |
| ::llvm::Function::arg_iterator arg_end(func_->arg_end()); |
| |
| const char* shorty = cu_->shorty; |
| uint32_t shorty_size = strlen(shorty); |
| CHECK_GE(shorty_size, 1u); |
| |
| ++arg_iter; // skip method object |
| |
| if ((cu_->access_flags & kAccStatic) == 0) { |
| SetVregOnValue(arg_iter, arg_reg); |
| ++arg_iter; |
| ++arg_reg; |
| } |
| |
| for (uint32_t i = 1; i < shorty_size; ++i, ++arg_iter) { |
| SetVregOnValue(arg_iter, arg_reg); |
| |
| ++arg_reg; |
| if (shorty[i] == 'J' || shorty[i] == 'D') { |
| // Wide types, such as long and double, are using a pair of registers |
| // to store the value, so we have to increase arg_reg again. |
| ++arg_reg; |
| } |
| } |
| } |
| } else if (bb->block_type == kExitBlock) { |
| /* |
| * Because of the differences between how MIR/LIR and llvm handle exit |
| * blocks, we won't explicitly covert them. On the llvm-to-lir |
| * path, it will need to be regenereated. |
| */ |
| return false; |
| } else if (bb->block_type == kExceptionHandling) { |
| /* |
| * Because we're deferring null checking, delete the associated empty |
| * exception block. |
| */ |
| llvm_bb->eraseFromParent(); |
| return false; |
| } |
| |
| HandlePhiNodes(bb, llvm_bb); |
| |
| for (MIR* mir = bb->first_mir_insn; mir != NULL; mir = mir->next) { |
| SetDexOffset(mir->offset); |
| |
| int opcode = mir->dalvikInsn.opcode; |
| Instruction::Format dalvik_format = |
| Instruction::FormatOf(mir->dalvikInsn.opcode); |
| |
| if (opcode == kMirOpCheck) { |
| // Combine check and work halves of throwing instruction. |
| MIR* work_half = mir->meta.throw_insn; |
| mir->dalvikInsn.opcode = work_half->dalvikInsn.opcode; |
| opcode = mir->dalvikInsn.opcode; |
| SSARepresentation* ssa_rep = work_half->ssa_rep; |
| work_half->ssa_rep = mir->ssa_rep; |
| mir->ssa_rep = ssa_rep; |
| work_half->meta.original_opcode = work_half->dalvikInsn.opcode; |
| work_half->dalvikInsn.opcode = static_cast<Instruction::Code>(kMirOpNop); |
| if (bb->successor_block_list.block_list_type == kCatch) { |
| ::llvm::Function* intr = intrinsic_helper_->GetIntrinsicFunction( |
| art::llvm::IntrinsicHelper::CatchTargets); |
| ::llvm::Value* switch_key = |
| irb_->CreateCall(intr, irb_->getInt32(mir->offset)); |
| GrowableArray<SuccessorBlockInfo*>::Iterator iter(bb->successor_block_list.blocks); |
| // New basic block to use for work half |
| ::llvm::BasicBlock* work_bb = |
| ::llvm::BasicBlock::Create(*context_, "", func_); |
| ::llvm::SwitchInst* sw = |
| irb_->CreateSwitch(switch_key, work_bb, |
| bb->successor_block_list.blocks->Size()); |
| while (true) { |
| SuccessorBlockInfo *successor_block_info = iter.Next(); |
| if (successor_block_info == NULL) break; |
| ::llvm::BasicBlock *target = |
| GetLLVMBlock(successor_block_info->block->id); |
| int type_index = successor_block_info->key; |
| sw->addCase(irb_->getInt32(type_index), target); |
| } |
| llvm_bb = work_bb; |
| irb_->SetInsertPoint(llvm_bb); |
| } |
| } |
| |
| if (opcode >= kMirOpFirst) { |
| ConvertExtendedMIR(bb, mir, llvm_bb); |
| continue; |
| } |
| |
| bool not_handled = ConvertMIRNode(mir, bb, llvm_bb); |
| if (not_handled) { |
| Instruction::Code dalvik_opcode = static_cast<Instruction::Code>(opcode); |
| LOG(WARNING) << StringPrintf("%#06x: Op %#x (%s) / Fmt %d not handled", |
| mir->offset, opcode, |
| Instruction::Name(dalvik_opcode), |
| dalvik_format); |
| } |
| } |
| |
| if (bb->block_type == kEntryBlock) { |
| entry_target_bb_ = GetLLVMBlock(bb->fall_through->id); |
| } else if ((bb->fall_through != NULL) && !bb->terminated_by_return) { |
| irb_->CreateBr(GetLLVMBlock(bb->fall_through->id)); |
| } |
| |
| return false; |
| } |
| |
| char RemapShorty(char shorty_type) { |
| /* |
| * TODO: might want to revisit this. Dalvik registers are 32-bits wide, |
| * and longs/doubles are represented as a pair of registers. When sub-word |
| * arguments (and method results) are passed, they are extended to Dalvik |
| * virtual register containers. Because llvm is picky about type consistency, |
| * we must either cast the "real" type to 32-bit container multiple Dalvik |
| * register types, or always use the expanded values. |
| * Here, we're doing the latter. We map the shorty signature to container |
| * types (which is valid so long as we always do a real expansion of passed |
| * arguments and field loads). |
| */ |
| switch (shorty_type) { |
| case 'Z' : shorty_type = 'I'; break; |
| case 'B' : shorty_type = 'I'; break; |
| case 'S' : shorty_type = 'I'; break; |
| case 'C' : shorty_type = 'I'; break; |
| default: break; |
| } |
| return shorty_type; |
| } |
| |
| ::llvm::FunctionType* MirConverter::GetFunctionType() { |
| // Get return type |
| ::llvm::Type* ret_type = irb_->getJType(RemapShorty(cu_->shorty[0])); |
| |
| // Get argument type |
| std::vector< ::llvm::Type*> args_type; |
| |
| // method object |
| args_type.push_back(irb_->getJMethodTy()); |
| |
| // Do we have a "this"? |
| if ((cu_->access_flags & kAccStatic) == 0) { |
| args_type.push_back(irb_->getJObjectTy()); |
| } |
| |
| for (uint32_t i = 1; i < strlen(cu_->shorty); ++i) { |
| args_type.push_back(irb_->getJType(RemapShorty(cu_->shorty[i]))); |
| } |
| |
| return ::llvm::FunctionType::get(ret_type, args_type, false); |
| } |
| |
| bool MirConverter::CreateFunction() { |
| ::llvm::FunctionType* func_type = GetFunctionType(); |
| if (func_type == NULL) { |
| return false; |
| } |
| |
| func_ = ::llvm::Function::Create(func_type, |
| ::llvm::Function::InternalLinkage, |
| symbol_, module_); |
| |
| ::llvm::Function::arg_iterator arg_iter(func_->arg_begin()); |
| ::llvm::Function::arg_iterator arg_end(func_->arg_end()); |
| |
| arg_iter->setName("method"); |
| ++arg_iter; |
| |
| int start_sreg = cu_->num_regs; |
| |
| for (unsigned i = 0; arg_iter != arg_end; ++i, ++arg_iter) { |
| arg_iter->setName(StringPrintf("v%i_0", start_sreg)); |
| start_sreg += mir_graph_->reg_location_[start_sreg].wide ? 2 : 1; |
| } |
| |
| return true; |
| } |
| |
| bool MirConverter::CreateLLVMBasicBlock(BasicBlock* bb) { |
| // Skip the exit block |
| if ((bb->block_type == kDead) ||(bb->block_type == kExitBlock)) { |
| id_to_block_map_.Put(bb->id, NULL); |
| } else { |
| int offset = bb->start_offset; |
| bool entry_block = (bb->block_type == kEntryBlock); |
| ::llvm::BasicBlock* llvm_bb = |
| ::llvm::BasicBlock::Create(*context_, entry_block ? "entry" : |
| StringPrintf(kLabelFormat, bb->catch_entry ? kCatchBlock : |
| kNormalBlock, offset, bb->id), func_); |
| if (entry_block) { |
| entry_bb_ = llvm_bb; |
| placeholder_bb_ = |
| ::llvm::BasicBlock::Create(*context_, "placeholder", |
| func_); |
| } |
| id_to_block_map_.Put(bb->id, llvm_bb); |
| } |
| return false; |
| } |
| |
| |
| /* |
| * Convert MIR to LLVM_IR |
| * o For each ssa name, create LLVM named value. Type these |
| * appropriately, and ignore high half of wide and double operands. |
| * o For each MIR basic block, create an LLVM basic block. |
| * o Iterate through the MIR a basic block at a time, setting arguments |
| * to recovered ssa name. |
| */ |
| void MirConverter::MethodMIR2Bitcode() { |
| InitIR(); |
| |
| // Create the function |
| CreateFunction(); |
| |
| // Create an LLVM basic block for each MIR block in dfs preorder |
| PreOrderDfsIterator iter(mir_graph_, false /* not iterative */); |
| for (BasicBlock* bb = iter.Next(); bb != NULL; bb = iter.Next()) { |
| CreateLLVMBasicBlock(bb); |
| } |
| |
| /* |
| * Create an llvm named value for each MIR SSA name. Note: we'll use |
| * placeholders for all non-argument values (because we haven't seen |
| * the definition yet). |
| */ |
| irb_->SetInsertPoint(placeholder_bb_); |
| ::llvm::Function::arg_iterator arg_iter(func_->arg_begin()); |
| arg_iter++; /* Skip path method */ |
| for (int i = 0; i < mir_graph_->GetNumSSARegs(); i++) { |
| ::llvm::Value* val; |
| RegLocation rl_temp = mir_graph_->reg_location_[i]; |
| if ((mir_graph_->SRegToVReg(i) < 0) || rl_temp.high_word) { |
| llvm_values_.Insert(0); |
| } else if ((i < cu_->num_regs) || |
| (i >= (cu_->num_regs + cu_->num_ins))) { |
| ::llvm::Constant* imm_value = mir_graph_->reg_location_[i].wide ? |
| irb_->getJLong(0) : irb_->getJInt(0); |
| val = EmitConst(imm_value, mir_graph_->reg_location_[i]); |
| val->setName(mir_graph_->GetSSAName(i)); |
| llvm_values_.Insert(val); |
| } else { |
| // Recover previously-created argument values |
| ::llvm::Value* arg_val = arg_iter++; |
| llvm_values_.Insert(arg_val); |
| } |
| } |
| |
| PreOrderDfsIterator iter2(mir_graph_, false /* not iterative */); |
| for (BasicBlock* bb = iter2.Next(); bb != NULL; bb = iter2.Next()) { |
| BlockBitcodeConversion(bb); |
| } |
| |
| /* |
| * In a few rare cases of verification failure, the verifier will |
| * replace one or more Dalvik opcodes with the special |
| * throw-verification-failure opcode. This can leave the SSA graph |
| * in an invalid state, as definitions may be lost, while uses retained. |
| * To work around this problem, we insert placeholder definitions for |
| * all Dalvik SSA regs in the "placeholder" block. Here, after |
| * bitcode conversion is complete, we examine those placeholder definitions |
| * and delete any with no references (which normally is all of them). |
| * |
| * If any definitions remain, we link the placeholder block into the |
| * CFG. Otherwise, it is deleted. |
| */ |
| for (::llvm::BasicBlock::iterator it = placeholder_bb_->begin(), |
| it_end = placeholder_bb_->end(); it != it_end;) { |
| ::llvm::Instruction* inst = ::llvm::dyn_cast< ::llvm::Instruction>(it++); |
| DCHECK(inst != NULL); |
| ::llvm::Value* val = ::llvm::dyn_cast< ::llvm::Value>(inst); |
| DCHECK(val != NULL); |
| if (val->getNumUses() == 0) { |
| inst->eraseFromParent(); |
| } |
| } |
| SetDexOffset(0); |
| if (placeholder_bb_->empty()) { |
| placeholder_bb_->eraseFromParent(); |
| } else { |
| irb_->SetInsertPoint(placeholder_bb_); |
| irb_->CreateBr(entry_target_bb_); |
| entry_target_bb_ = placeholder_bb_; |
| } |
| irb_->SetInsertPoint(entry_bb_); |
| irb_->CreateBr(entry_target_bb_); |
| |
| if (cu_->enable_debug & (1 << kDebugVerifyBitcode)) { |
| if (::llvm::verifyFunction(*func_, ::llvm::PrintMessageAction)) { |
| LOG(INFO) << "Bitcode verification FAILED for " |
| << PrettyMethod(cu_->method_idx, *cu_->dex_file) |
| << " of size " << cu_->code_item->insns_size_in_code_units_; |
| cu_->enable_debug |= (1 << kDebugDumpBitcodeFile); |
| } |
| } |
| |
| if (cu_->enable_debug & (1 << kDebugDumpBitcodeFile)) { |
| // Write bitcode to file |
| std::string errmsg; |
| std::string fname(PrettyMethod(cu_->method_idx, *cu_->dex_file)); |
| mir_graph_->ReplaceSpecialChars(fname); |
| // TODO: make configurable change naming mechanism to avoid fname length issues. |
| fname = StringPrintf("/sdcard/Bitcode/%s.bc", fname.c_str()); |
| |
| if (fname.size() > 240) { |
| LOG(INFO) << "Warning: bitcode filename too long. Truncated."; |
| fname.resize(240); |
| } |
| |
| ::llvm::OwningPtr< ::llvm::tool_output_file> out_file( |
| new ::llvm::tool_output_file(fname.c_str(), errmsg, |
| ::llvm::sys::fs::F_Binary)); |
| |
| if (!errmsg.empty()) { |
| LOG(ERROR) << "Failed to create bitcode output file: " << errmsg; |
| } |
| |
| ::llvm::WriteBitcodeToFile(module_, out_file->os()); |
| out_file->keep(); |
| } |
| } |
| |
| Backend* PortableCodeGenerator(CompilationUnit* const cu, MIRGraph* const mir_graph, |
| ArenaAllocator* const arena, |
| llvm::LlvmCompilationUnit* const llvm_compilation_unit) { |
| return new MirConverter(cu, mir_graph, arena, llvm_compilation_unit); |
| } |
| |
| } // namespace art |
