Move compiler_llvm to art::llvm.
Also move the invoke stubs (soon to be removed) under compiler.
Start moving LLVM code under compiler. Will move GBC expander to dex/portable
once it is disentangled from other builds (moving toward solving Bug: 8195425).
Change-Id: I8829f9db6ade9ac8e32bd16198b90f83619769f1
diff --git a/src/compiler/llvm/gbc_expander.cc b/src/compiler/llvm/gbc_expander.cc
new file mode 100644
index 0000000..4e1a91d
--- /dev/null
+++ b/src/compiler/llvm/gbc_expander.cc
@@ -0,0 +1,3642 @@
+/*
+ * Copyright (C) 2012 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 "compiler/driver/compiler_driver.h"
+#include "compiler/driver/dex_compilation_unit.h"
+#include "intrinsic_helper.h"
+#include "ir_builder.h"
+#include "mirror/abstract_method.h"
+#include "mirror/array.h"
+#include "thread.h"
+#include "utils_llvm.h"
+#include "verifier/method_verifier.h"
+
+#include "compiler/dex/compiler_ir.h"
+#include "compiler/dex/quick/codegen.h"
+using art::kMIRIgnoreNullCheck;
+using art::kMIRIgnoreRangeCheck;
+
+#include <llvm/ADT/STLExtras.h>
+#include <llvm/Intrinsics.h>
+#include <llvm/Metadata.h>
+#include <llvm/Pass.h>
+#include <llvm/Support/CFG.h>
+#include <llvm/Support/InstIterator.h>
+
+#include <vector>
+#include <map>
+#include <utility>
+
+using namespace art::llvm;
+
+using art::llvm::IntrinsicHelper;
+
+namespace art {
+extern char RemapShorty(char shortyType);
+};
+
+namespace {
+
+class GBCExpanderPass : public llvm::FunctionPass {
+ private:
+ const IntrinsicHelper& intrinsic_helper_;
+ IRBuilder& irb_;
+
+ llvm::LLVMContext& context_;
+ RuntimeSupportBuilder& rtb_;
+
+ private:
+ llvm::AllocaInst* shadow_frame_;
+ llvm::Value* old_shadow_frame_;
+
+ private:
+ art::CompilerDriver* const driver_;
+
+ const art::DexCompilationUnit* const dex_compilation_unit_;
+
+ llvm::Function* func_;
+
+ std::vector<llvm::BasicBlock*> basic_blocks_;
+
+ std::vector<llvm::BasicBlock*> basic_block_landing_pads_;
+ llvm::BasicBlock* current_bb_;
+ std::map<llvm::BasicBlock*, std::vector<std::pair<llvm::BasicBlock*, llvm::BasicBlock*> > >
+ landing_pad_phi_mapping_;
+ llvm::BasicBlock* basic_block_unwind_;
+
+ bool changed_;
+
+ private:
+ //----------------------------------------------------------------------------
+ // Constant for GBC expansion
+ //----------------------------------------------------------------------------
+ enum IntegerShiftKind {
+ kIntegerSHL,
+ kIntegerSHR,
+ kIntegerUSHR,
+ };
+
+ private:
+ //----------------------------------------------------------------------------
+ // Helper function for GBC expansion
+ //----------------------------------------------------------------------------
+
+ llvm::Value* ExpandToRuntime(runtime_support::RuntimeId rt,
+ llvm::CallInst& inst);
+
+ uint64_t LV2UInt(llvm::Value* lv) {
+ return llvm::cast<llvm::ConstantInt>(lv)->getZExtValue();
+ }
+
+ int64_t LV2SInt(llvm::Value* lv) {
+ return llvm::cast<llvm::ConstantInt>(lv)->getSExtValue();
+ }
+
+ private:
+ // TODO: Almost all Emit* are directly copy-n-paste from MethodCompiler.
+ // Refactor these utility functions from MethodCompiler to avoid forking.
+
+ void EmitStackOverflowCheck(llvm::Instruction* first_non_alloca);
+
+ void RewriteFunction();
+
+ void RewriteBasicBlock(llvm::BasicBlock* original_block);
+
+ void UpdatePhiInstruction(llvm::BasicBlock* old_basic_block,
+ llvm::BasicBlock* new_basic_block);
+
+
+ // Sign or zero extend category 1 types < 32bits in size to 32bits.
+ llvm::Value* SignOrZeroExtendCat1Types(llvm::Value* value, JType jty);
+
+ // Truncate category 1 types from 32bits to the given JType size.
+ llvm::Value* TruncateCat1Types(llvm::Value* value, JType jty);
+
+ //----------------------------------------------------------------------------
+ // Dex cache code generation helper function
+ //----------------------------------------------------------------------------
+ llvm::Value* EmitLoadDexCacheAddr(art::MemberOffset dex_cache_offset);
+
+ llvm::Value* EmitLoadDexCacheStaticStorageFieldAddr(uint32_t type_idx);
+
+ llvm::Value* EmitLoadDexCacheResolvedTypeFieldAddr(uint32_t type_idx);
+
+ llvm::Value* EmitLoadDexCacheResolvedMethodFieldAddr(uint32_t method_idx);
+
+ llvm::Value* EmitLoadDexCacheStringFieldAddr(uint32_t string_idx);
+
+ //----------------------------------------------------------------------------
+ // Code generation helper function
+ //----------------------------------------------------------------------------
+ llvm::Value* EmitLoadMethodObjectAddr();
+
+ llvm::Value* EmitLoadArrayLength(llvm::Value* array);
+
+ llvm::Value* EmitLoadSDCalleeMethodObjectAddr(uint32_t callee_method_idx);
+
+ llvm::Value* EmitLoadVirtualCalleeMethodObjectAddr(int vtable_idx,
+ llvm::Value* this_addr);
+
+ llvm::Value* EmitArrayGEP(llvm::Value* array_addr,
+ llvm::Value* index_value,
+ JType elem_jty);
+
+ private:
+ //----------------------------------------------------------------------------
+ // Expand Greenland intrinsics
+ //----------------------------------------------------------------------------
+ void Expand_TestSuspend(llvm::CallInst& call_inst);
+
+ void Expand_MarkGCCard(llvm::CallInst& call_inst);
+
+ llvm::Value* Expand_LoadStringFromDexCache(llvm::Value* string_idx_value);
+
+ llvm::Value* Expand_LoadTypeFromDexCache(llvm::Value* type_idx_value);
+
+ void Expand_LockObject(llvm::Value* obj);
+
+ void Expand_UnlockObject(llvm::Value* obj);
+
+ llvm::Value* Expand_ArrayGet(llvm::Value* array_addr,
+ llvm::Value* index_value,
+ JType elem_jty);
+
+ void Expand_ArrayPut(llvm::Value* new_value,
+ llvm::Value* array_addr,
+ llvm::Value* index_value,
+ JType elem_jty);
+
+ void Expand_FilledNewArray(llvm::CallInst& call_inst);
+
+ llvm::Value* Expand_IGetFast(llvm::Value* field_offset_value,
+ llvm::Value* is_volatile_value,
+ llvm::Value* object_addr,
+ JType field_jty);
+
+ void Expand_IPutFast(llvm::Value* field_offset_value,
+ llvm::Value* is_volatile_value,
+ llvm::Value* object_addr,
+ llvm::Value* new_value,
+ JType field_jty);
+
+ llvm::Value* Expand_SGetFast(llvm::Value* static_storage_addr,
+ llvm::Value* field_offset_value,
+ llvm::Value* is_volatile_value,
+ JType field_jty);
+
+ void Expand_SPutFast(llvm::Value* static_storage_addr,
+ llvm::Value* field_offset_value,
+ llvm::Value* is_volatile_value,
+ llvm::Value* new_value,
+ JType field_jty);
+
+ llvm::Value* Expand_LoadDeclaringClassSSB(llvm::Value* method_object_addr);
+
+ llvm::Value* Expand_LoadClassSSBFromDexCache(llvm::Value* type_idx_value);
+
+ llvm::Value*
+ Expand_GetSDCalleeMethodObjAddrFast(llvm::Value* callee_method_idx_value);
+
+ llvm::Value*
+ Expand_GetVirtualCalleeMethodObjAddrFast(llvm::Value* vtable_idx_value,
+ llvm::Value* this_addr);
+
+ llvm::Value* Expand_Invoke(llvm::CallInst& call_inst);
+
+ llvm::Value* Expand_DivRem(llvm::CallInst& call_inst, bool is_div, JType op_jty);
+
+ void Expand_AllocaShadowFrame(llvm::Value* num_vregs_value);
+
+ void Expand_SetVReg(llvm::Value* entry_idx, llvm::Value* obj);
+
+ void Expand_PopShadowFrame();
+
+ void Expand_UpdateDexPC(llvm::Value* dex_pc_value);
+
+ //----------------------------------------------------------------------------
+ // Quick
+ //----------------------------------------------------------------------------
+
+ llvm::Value* Expand_FPCompare(llvm::Value* src1_value,
+ llvm::Value* src2_value,
+ bool gt_bias);
+
+ llvm::Value* Expand_LongCompare(llvm::Value* src1_value, llvm::Value* src2_value);
+
+ llvm::Value* EmitCompareResultSelection(llvm::Value* cmp_eq,
+ llvm::Value* cmp_lt);
+
+ llvm::Value* EmitLoadConstantClass(uint32_t dex_pc, uint32_t type_idx);
+ llvm::Value* EmitLoadStaticStorage(uint32_t dex_pc, uint32_t type_idx);
+
+ llvm::Value* Expand_HLIGet(llvm::CallInst& call_inst, JType field_jty);
+ void Expand_HLIPut(llvm::CallInst& call_inst, JType field_jty);
+
+ llvm::Value* Expand_HLSget(llvm::CallInst& call_inst, JType field_jty);
+ void Expand_HLSput(llvm::CallInst& call_inst, JType field_jty);
+
+ llvm::Value* Expand_HLArrayGet(llvm::CallInst& call_inst, JType field_jty);
+ void Expand_HLArrayPut(llvm::CallInst& call_inst, JType field_jty);
+
+ llvm::Value* Expand_ConstString(llvm::CallInst& call_inst);
+ llvm::Value* Expand_ConstClass(llvm::CallInst& call_inst);
+
+ void Expand_MonitorEnter(llvm::CallInst& call_inst);
+ void Expand_MonitorExit(llvm::CallInst& call_inst);
+
+ void Expand_HLCheckCast(llvm::CallInst& call_inst);
+ llvm::Value* Expand_InstanceOf(llvm::CallInst& call_inst);
+
+ llvm::Value* Expand_NewInstance(llvm::CallInst& call_inst);
+
+ llvm::Value* Expand_HLInvoke(llvm::CallInst& call_inst);
+
+ llvm::Value* Expand_OptArrayLength(llvm::CallInst& call_inst);
+ llvm::Value* Expand_NewArray(llvm::CallInst& call_inst);
+ llvm::Value* Expand_HLFilledNewArray(llvm::CallInst& call_inst);
+ void Expand_HLFillArrayData(llvm::CallInst& call_inst);
+
+ llvm::Value* EmitAllocNewArray(uint32_t dex_pc,
+ llvm::Value* array_length_value,
+ uint32_t type_idx,
+ bool is_filled_new_array);
+
+ llvm::Value* EmitCallRuntimeForCalleeMethodObjectAddr(uint32_t callee_method_idx,
+ art::InvokeType invoke_type,
+ llvm::Value* this_addr,
+ uint32_t dex_pc,
+ bool is_fast_path);
+
+ void EmitMarkGCCard(llvm::Value* value, llvm::Value* target_addr);
+
+ void EmitUpdateDexPC(uint32_t dex_pc);
+
+ void EmitGuard_DivZeroException(uint32_t dex_pc,
+ llvm::Value* denominator,
+ JType op_jty);
+
+ void EmitGuard_NullPointerException(uint32_t dex_pc, llvm::Value* object,
+ int opt_flags);
+
+ void EmitGuard_ArrayIndexOutOfBoundsException(uint32_t dex_pc,
+ llvm::Value* array,
+ llvm::Value* index,
+ int opt_flags);
+
+ llvm::FunctionType* GetFunctionType(llvm::Type* ret_type, uint32_t method_idx, bool is_static);
+
+ llvm::BasicBlock* GetBasicBlock(uint32_t dex_pc);
+
+ llvm::BasicBlock* CreateBasicBlockWithDexPC(uint32_t dex_pc,
+ const char* postfix);
+
+ int32_t GetTryItemOffset(uint32_t dex_pc);
+
+ llvm::BasicBlock* GetLandingPadBasicBlock(uint32_t dex_pc);
+
+ llvm::BasicBlock* GetUnwindBasicBlock();
+
+ void EmitGuard_ExceptionLandingPad(uint32_t dex_pc);
+
+ void EmitBranchExceptionLandingPad(uint32_t dex_pc);
+
+ //----------------------------------------------------------------------------
+ // Expand Arithmetic Helper Intrinsics
+ //----------------------------------------------------------------------------
+
+ llvm::Value* Expand_IntegerShift(llvm::Value* src1_value,
+ llvm::Value* src2_value,
+ IntegerShiftKind kind,
+ JType op_jty);
+
+ public:
+ static char ID;
+
+ GBCExpanderPass(const IntrinsicHelper& intrinsic_helper, IRBuilder& irb,
+ art::CompilerDriver* compiler, art::DexCompilationUnit* dex_compilation_unit)
+ : llvm::FunctionPass(ID), intrinsic_helper_(intrinsic_helper), irb_(irb),
+ context_(irb.getContext()), rtb_(irb.Runtime()),
+ shadow_frame_(NULL), old_shadow_frame_(NULL),
+ driver_(compiler),
+ dex_compilation_unit_(dex_compilation_unit),
+ func_(NULL), current_bb_(NULL), basic_block_unwind_(NULL), changed_(false) {}
+
+ bool runOnFunction(llvm::Function& func);
+
+ private:
+ void InsertStackOverflowCheck(llvm::Function& func);
+
+ llvm::Value* ExpandIntrinsic(IntrinsicHelper::IntrinsicId intr_id,
+ llvm::CallInst& call_inst);
+
+};
+
+char GBCExpanderPass::ID = 0;
+
+bool GBCExpanderPass::runOnFunction(llvm::Function& func) {
+ VLOG(compiler) << "GBC expansion on " << func.getName().str();
+
+ // Runtime support or stub
+ if (func.getName().startswith("art_") || func.getName().startswith("Art")) {
+ return false;
+ }
+
+ // Setup rewrite context
+ shadow_frame_ = NULL;
+ old_shadow_frame_ = NULL;
+ func_ = &func;
+ changed_ = false; // Assume unchanged
+
+ basic_blocks_.resize(dex_compilation_unit_->GetCodeItem()->insns_size_in_code_units_);
+ basic_block_landing_pads_.resize(dex_compilation_unit_->GetCodeItem()->tries_size_, NULL);
+ basic_block_unwind_ = NULL;
+ for (llvm::Function::iterator bb_iter = func_->begin(), bb_end = func_->end();
+ bb_iter != bb_end;
+ ++bb_iter) {
+ if (bb_iter->begin()->getMetadata("DexOff") == NULL) {
+ continue;
+ }
+ uint32_t dex_pc = LV2UInt(bb_iter->begin()->getMetadata("DexOff")->getOperand(0));
+ basic_blocks_[dex_pc] = bb_iter;
+ }
+
+ // Insert stack overflow check
+ InsertStackOverflowCheck(func); // TODO: Use intrinsic.
+
+ // Rewrite the intrinsics
+ RewriteFunction();
+
+ VERIFY_LLVM_FUNCTION(func);
+
+ return changed_;
+}
+
+void GBCExpanderPass::RewriteBasicBlock(llvm::BasicBlock* original_block) {
+ llvm::BasicBlock* curr_basic_block = original_block;
+
+ llvm::BasicBlock::iterator inst_iter = original_block->begin();
+ llvm::BasicBlock::iterator inst_end = original_block->end();
+
+ while (inst_iter != inst_end) {
+ llvm::CallInst* call_inst = llvm::dyn_cast<llvm::CallInst>(inst_iter);
+ IntrinsicHelper::IntrinsicId intr_id = IntrinsicHelper::UnknownId;
+
+ if (call_inst) {
+ llvm::Function* callee_func = call_inst->getCalledFunction();
+ intr_id = intrinsic_helper_.GetIntrinsicId(callee_func);
+ }
+
+ if (intr_id == IntrinsicHelper::UnknownId) {
+ // This is not intrinsic call. Skip this instruction.
+ ++inst_iter;
+ continue;
+ }
+
+ // Rewrite the intrinsic and change the function
+ changed_ = true;
+ irb_.SetInsertPoint(inst_iter);
+
+ // Expand the intrinsic
+ if (llvm::Value* new_value = ExpandIntrinsic(intr_id, *call_inst)) {
+ inst_iter->replaceAllUsesWith(new_value);
+ }
+
+ // Remove the old intrinsic call instruction
+ llvm::BasicBlock::iterator old_inst = inst_iter++;
+ old_inst->eraseFromParent();
+
+ // Splice the instruction to the new basic block
+ llvm::BasicBlock* next_basic_block = irb_.GetInsertBlock();
+ if (next_basic_block != curr_basic_block) {
+ next_basic_block->getInstList().splice(
+ irb_.GetInsertPoint(), curr_basic_block->getInstList(),
+ inst_iter, inst_end);
+ curr_basic_block = next_basic_block;
+ inst_end = curr_basic_block->end();
+ }
+ }
+}
+
+
+void GBCExpanderPass::RewriteFunction() {
+ size_t num_basic_blocks = func_->getBasicBlockList().size();
+ // NOTE: We are not using (bb_iter != bb_end) as the for-loop condition,
+ // because we will create new basic block while expanding the intrinsics.
+ // We only want to iterate through the input basic blocks.
+
+ landing_pad_phi_mapping_.clear();
+
+ for (llvm::Function::iterator bb_iter = func_->begin();
+ num_basic_blocks > 0; ++bb_iter, --num_basic_blocks) {
+ // Set insert point to current basic block.
+ irb_.SetInsertPoint(bb_iter);
+
+ current_bb_ = bb_iter;
+
+ // Rewrite the basic block
+ RewriteBasicBlock(bb_iter);
+
+ // Update the phi-instructions in the successor basic block
+ llvm::BasicBlock* last_block = irb_.GetInsertBlock();
+ if (last_block != bb_iter) {
+ UpdatePhiInstruction(bb_iter, last_block);
+ }
+ }
+
+ typedef std::map<llvm::PHINode*, llvm::PHINode*> HandlerPHIMap;
+ HandlerPHIMap handler_phi;
+ // Iterate every used landing pad basic block
+ for (size_t i = 0, ei = basic_block_landing_pads_.size(); i != ei; ++i) {
+ llvm::BasicBlock* lbb = basic_block_landing_pads_[i];
+ if (lbb == NULL) {
+ continue;
+ }
+
+ llvm::TerminatorInst* term_inst = lbb->getTerminator();
+ std::vector<std::pair<llvm::BasicBlock*, llvm::BasicBlock*> >& rewrite_pair
+ = landing_pad_phi_mapping_[lbb];
+ irb_.SetInsertPoint(lbb->begin());
+
+ // Iterate every succeeding basic block (catch block)
+ for (unsigned succ_iter = 0, succ_end = term_inst->getNumSuccessors();
+ succ_iter != succ_end; ++succ_iter) {
+ llvm::BasicBlock* succ_basic_block = term_inst->getSuccessor(succ_iter);
+
+ // Iterate every phi instructions in the succeeding basic block
+ for (llvm::BasicBlock::iterator
+ inst_iter = succ_basic_block->begin(),
+ inst_end = succ_basic_block->end();
+ inst_iter != inst_end; ++inst_iter) {
+ llvm::PHINode *phi = llvm::dyn_cast<llvm::PHINode>(inst_iter);
+
+ if (!phi) {
+ break; // Meet non-phi instruction. Done.
+ }
+
+ if (handler_phi[phi] == NULL) {
+ handler_phi[phi] = llvm::PHINode::Create(phi->getType(), 1);
+ }
+
+ // Create new_phi in landing pad
+ llvm::PHINode* new_phi = irb_.CreatePHI(phi->getType(), rewrite_pair.size());
+ // Insert all incoming value into new_phi by rewrite_pair
+ for (size_t j = 0, ej = rewrite_pair.size(); j != ej; ++j) {
+ llvm::BasicBlock* old_bb = rewrite_pair[j].first;
+ llvm::BasicBlock* new_bb = rewrite_pair[j].second;
+ new_phi->addIncoming(phi->getIncomingValueForBlock(old_bb), new_bb);
+ }
+ // Delete all incoming value from phi by rewrite_pair
+ for (size_t j = 0, ej = rewrite_pair.size(); j != ej; ++j) {
+ llvm::BasicBlock* old_bb = rewrite_pair[j].first;
+ int old_bb_idx = phi->getBasicBlockIndex(old_bb);
+ if (old_bb_idx >= 0) {
+ phi->removeIncomingValue(old_bb_idx, false);
+ }
+ }
+ // Insert new_phi into new handler phi
+ handler_phi[phi]->addIncoming(new_phi, lbb);
+ }
+ }
+ }
+
+ // Replace all handler phi
+ // We can't just use the old handler phi, because some exception edges will disappear after we
+ // compute fast-path.
+ for (HandlerPHIMap::iterator it = handler_phi.begin(); it != handler_phi.end(); ++it) {
+ llvm::PHINode* old_phi = it->first;
+ llvm::PHINode* new_phi = it->second;
+ new_phi->insertBefore(old_phi);
+ old_phi->replaceAllUsesWith(new_phi);
+ old_phi->eraseFromParent();
+ }
+}
+
+void GBCExpanderPass::UpdatePhiInstruction(llvm::BasicBlock* old_basic_block,
+ llvm::BasicBlock* new_basic_block) {
+ llvm::TerminatorInst* term_inst = new_basic_block->getTerminator();
+
+ if (!term_inst) {
+ return; // No terminating instruction in new_basic_block. Nothing to do.
+ }
+
+ // Iterate every succeeding basic block
+ for (unsigned succ_iter = 0, succ_end = term_inst->getNumSuccessors();
+ succ_iter != succ_end; ++succ_iter) {
+ llvm::BasicBlock* succ_basic_block = term_inst->getSuccessor(succ_iter);
+
+ // Iterate every phi instructions in the succeeding basic block
+ for (llvm::BasicBlock::iterator
+ inst_iter = succ_basic_block->begin(),
+ inst_end = succ_basic_block->end();
+ inst_iter != inst_end; ++inst_iter) {
+ llvm::PHINode *phi = llvm::dyn_cast<llvm::PHINode>(inst_iter);
+
+ if (!phi) {
+ break; // Meet non-phi instruction. Done.
+ }
+
+ // Update the incoming block of this phi instruction
+ for (llvm::PHINode::block_iterator
+ ibb_iter = phi->block_begin(), ibb_end = phi->block_end();
+ ibb_iter != ibb_end; ++ibb_iter) {
+ if (*ibb_iter == old_basic_block) {
+ *ibb_iter = new_basic_block;
+ }
+ }
+ }
+ }
+}
+
+llvm::Value* GBCExpanderPass::ExpandToRuntime(runtime_support::RuntimeId rt,
+ llvm::CallInst& inst) {
+ // Some GBC intrinsic can directly replace with IBC runtime. "Directly" means
+ // the arguments passed to the GBC intrinsic are as the same as IBC runtime
+ // function, therefore only called function is needed to change.
+ unsigned num_args = inst.getNumArgOperands();
+
+ if (num_args <= 0) {
+ return irb_.CreateCall(irb_.GetRuntime(rt));
+ } else {
+ std::vector<llvm::Value*> args;
+ for (unsigned i = 0; i < num_args; i++) {
+ args.push_back(inst.getArgOperand(i));
+ }
+
+ return irb_.CreateCall(irb_.GetRuntime(rt), args);
+ }
+}
+
+void
+GBCExpanderPass::EmitStackOverflowCheck(llvm::Instruction* first_non_alloca) {
+ llvm::Function* func = first_non_alloca->getParent()->getParent();
+ llvm::Module* module = func->getParent();
+
+ // Call llvm intrinsic function to get frame address.
+ llvm::Function* frameaddress =
+ llvm::Intrinsic::getDeclaration(module, llvm::Intrinsic::frameaddress);
+
+ // The type of llvm::frameaddress is: i8* @llvm.frameaddress(i32)
+ llvm::Value* frame_address = irb_.CreateCall(frameaddress, irb_.getInt32(0));
+
+ // Cast i8* to int
+ frame_address = irb_.CreatePtrToInt(frame_address, irb_.getPtrEquivIntTy());
+
+ // Get thread.stack_end_
+ llvm::Value* stack_end =
+ irb_.Runtime().EmitLoadFromThreadOffset(art::Thread::StackEndOffset().Int32Value(),
+ irb_.getPtrEquivIntTy(),
+ kTBAARuntimeInfo);
+
+ // Check the frame address < thread.stack_end_ ?
+ llvm::Value* is_stack_overflow = irb_.CreateICmpULT(frame_address, stack_end);
+
+ llvm::BasicBlock* block_exception =
+ llvm::BasicBlock::Create(context_, "stack_overflow", func);
+
+ llvm::BasicBlock* block_continue =
+ llvm::BasicBlock::Create(context_, "stack_overflow_cont", func);
+
+ irb_.CreateCondBr(is_stack_overflow, block_exception, block_continue, kUnlikely);
+
+ // If stack overflow, throw exception.
+ irb_.SetInsertPoint(block_exception);
+ irb_.CreateCall(irb_.GetRuntime(runtime_support::ThrowStackOverflowException));
+
+ // Unwind.
+ llvm::Type* ret_type = func->getReturnType();
+ if (ret_type->isVoidTy()) {
+ irb_.CreateRetVoid();
+ } else {
+ // The return value is ignored when there's an exception. MethodCompiler
+ // returns zero value under the the corresponding return type in this case.
+ // GBCExpander returns LLVM undef value here for brevity
+ irb_.CreateRet(llvm::UndefValue::get(ret_type));
+ }
+
+ irb_.SetInsertPoint(block_continue);
+}
+
+llvm::Value* GBCExpanderPass::EmitLoadDexCacheAddr(art::MemberOffset offset) {
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ return irb_.LoadFromObjectOffset(method_object_addr,
+ offset.Int32Value(),
+ irb_.getJObjectTy(),
+ kTBAAConstJObject);
+}
+
+llvm::Value*
+GBCExpanderPass::EmitLoadDexCacheStaticStorageFieldAddr(uint32_t type_idx) {
+ llvm::Value* static_storage_dex_cache_addr =
+ EmitLoadDexCacheAddr(art::mirror::AbstractMethod::DexCacheInitializedStaticStorageOffset());
+
+ llvm::Value* type_idx_value = irb_.getPtrEquivInt(type_idx);
+
+ return EmitArrayGEP(static_storage_dex_cache_addr, type_idx_value, kObject);
+}
+
+llvm::Value*
+GBCExpanderPass::EmitLoadDexCacheResolvedTypeFieldAddr(uint32_t type_idx) {
+ llvm::Value* resolved_type_dex_cache_addr =
+ EmitLoadDexCacheAddr(art::mirror::AbstractMethod::DexCacheResolvedTypesOffset());
+
+ llvm::Value* type_idx_value = irb_.getPtrEquivInt(type_idx);
+
+ return EmitArrayGEP(resolved_type_dex_cache_addr, type_idx_value, kObject);
+}
+
+llvm::Value* GBCExpanderPass::
+EmitLoadDexCacheResolvedMethodFieldAddr(uint32_t method_idx) {
+ llvm::Value* resolved_method_dex_cache_addr =
+ EmitLoadDexCacheAddr(art::mirror::AbstractMethod::DexCacheResolvedMethodsOffset());
+
+ llvm::Value* method_idx_value = irb_.getPtrEquivInt(method_idx);
+
+ return EmitArrayGEP(resolved_method_dex_cache_addr, method_idx_value, kObject);
+}
+
+llvm::Value* GBCExpanderPass::
+EmitLoadDexCacheStringFieldAddr(uint32_t string_idx) {
+ llvm::Value* string_dex_cache_addr =
+ EmitLoadDexCacheAddr(art::mirror::AbstractMethod::DexCacheStringsOffset());
+
+ llvm::Value* string_idx_value = irb_.getPtrEquivInt(string_idx);
+
+ return EmitArrayGEP(string_dex_cache_addr, string_idx_value, kObject);
+}
+
+llvm::Value* GBCExpanderPass::EmitLoadMethodObjectAddr() {
+ llvm::Function* parent_func = irb_.GetInsertBlock()->getParent();
+ return parent_func->arg_begin();
+}
+
+llvm::Value* GBCExpanderPass::EmitLoadArrayLength(llvm::Value* array) {
+ // Load array length
+ return irb_.LoadFromObjectOffset(array,
+ art::mirror::Array::LengthOffset().Int32Value(),
+ irb_.getJIntTy(),
+ kTBAAConstJObject);
+
+}
+
+llvm::Value*
+GBCExpanderPass::EmitLoadSDCalleeMethodObjectAddr(uint32_t callee_method_idx) {
+ llvm::Value* callee_method_object_field_addr =
+ EmitLoadDexCacheResolvedMethodFieldAddr(callee_method_idx);
+
+ return irb_.CreateLoad(callee_method_object_field_addr, kTBAARuntimeInfo);
+}
+
+llvm::Value* GBCExpanderPass::
+EmitLoadVirtualCalleeMethodObjectAddr(int vtable_idx, llvm::Value* this_addr) {
+ // Load class object of *this* pointer
+ llvm::Value* class_object_addr =
+ irb_.LoadFromObjectOffset(this_addr,
+ art::mirror::Object::ClassOffset().Int32Value(),
+ irb_.getJObjectTy(),
+ kTBAAConstJObject);
+
+ // Load vtable address
+ llvm::Value* vtable_addr =
+ irb_.LoadFromObjectOffset(class_object_addr,
+ art::mirror::Class::VTableOffset().Int32Value(),
+ irb_.getJObjectTy(),
+ kTBAAConstJObject);
+
+ // Load callee method object
+ llvm::Value* vtable_idx_value =
+ irb_.getPtrEquivInt(static_cast<uint64_t>(vtable_idx));
+
+ llvm::Value* method_field_addr =
+ EmitArrayGEP(vtable_addr, vtable_idx_value, kObject);
+
+ return irb_.CreateLoad(method_field_addr, kTBAAConstJObject);
+}
+
+// Emit Array GetElementPtr
+llvm::Value* GBCExpanderPass::EmitArrayGEP(llvm::Value* array_addr,
+ llvm::Value* index_value,
+ JType elem_jty) {
+
+ int data_offset;
+ if (elem_jty == kLong || elem_jty == kDouble ||
+ (elem_jty == kObject && sizeof(uint64_t) == sizeof(art::mirror::Object*))) {
+ data_offset = art::mirror::Array::DataOffset(sizeof(int64_t)).Int32Value();
+ } else {
+ data_offset = art::mirror::Array::DataOffset(sizeof(int32_t)).Int32Value();
+ }
+
+ llvm::Constant* data_offset_value =
+ irb_.getPtrEquivInt(data_offset);
+
+ llvm::Type* elem_type = irb_.getJType(elem_jty);
+
+ llvm::Value* array_data_addr =
+ irb_.CreatePtrDisp(array_addr, data_offset_value,
+ elem_type->getPointerTo());
+
+ return irb_.CreateGEP(array_data_addr, index_value);
+}
+
+void GBCExpanderPass::Expand_TestSuspend(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+
+ llvm::Value* suspend_count =
+ irb_.Runtime().EmitLoadFromThreadOffset(art::Thread::ThreadFlagsOffset().Int32Value(),
+ irb_.getInt16Ty(),
+ kTBAARuntimeInfo);
+ llvm::Value* is_suspend = irb_.CreateICmpNE(suspend_count, irb_.getInt16(0));
+
+ llvm::BasicBlock* basic_block_suspend = CreateBasicBlockWithDexPC(dex_pc, "suspend");
+ llvm::BasicBlock* basic_block_cont = CreateBasicBlockWithDexPC(dex_pc, "suspend_cont");
+
+ irb_.CreateCondBr(is_suspend, basic_block_suspend, basic_block_cont, kUnlikely);
+
+ irb_.SetInsertPoint(basic_block_suspend);
+ if (dex_pc != art::DexFile::kDexNoIndex) {
+ EmitUpdateDexPC(dex_pc);
+ }
+ irb_.Runtime().EmitTestSuspend();
+
+ llvm::BasicBlock* basic_block_exception = CreateBasicBlockWithDexPC(dex_pc, "exception");
+ llvm::Value* exception_pending = irb_.Runtime().EmitIsExceptionPending();
+ irb_.CreateCondBr(exception_pending, basic_block_exception, basic_block_cont, kUnlikely);
+
+ irb_.SetInsertPoint(basic_block_exception);
+ llvm::Type* ret_type = call_inst.getParent()->getParent()->getReturnType();
+ if (ret_type->isVoidTy()) {
+ irb_.CreateRetVoid();
+ } else {
+ // The return value is ignored when there's an exception.
+ irb_.CreateRet(llvm::UndefValue::get(ret_type));
+ }
+
+ irb_.SetInsertPoint(basic_block_cont);
+ return;
+}
+
+void GBCExpanderPass::Expand_MarkGCCard(llvm::CallInst& call_inst) {
+ irb_.Runtime().EmitMarkGCCard(call_inst.getArgOperand(0), call_inst.getArgOperand(1));
+ return;
+}
+
+llvm::Value*
+GBCExpanderPass::Expand_LoadStringFromDexCache(llvm::Value* string_idx_value) {
+ uint32_t string_idx =
+ llvm::cast<llvm::ConstantInt>(string_idx_value)->getZExtValue();
+
+ llvm::Value* string_field_addr = EmitLoadDexCacheStringFieldAddr(string_idx);
+
+ return irb_.CreateLoad(string_field_addr, kTBAARuntimeInfo);
+}
+
+llvm::Value*
+GBCExpanderPass::Expand_LoadTypeFromDexCache(llvm::Value* type_idx_value) {
+ uint32_t type_idx =
+ llvm::cast<llvm::ConstantInt>(type_idx_value)->getZExtValue();
+
+ llvm::Value* type_field_addr =
+ EmitLoadDexCacheResolvedTypeFieldAddr(type_idx);
+
+ return irb_.CreateLoad(type_field_addr, kTBAARuntimeInfo);
+}
+
+void GBCExpanderPass::Expand_LockObject(llvm::Value* obj) {
+ rtb_.EmitLockObject(obj);
+ return;
+}
+
+void GBCExpanderPass::Expand_UnlockObject(llvm::Value* obj) {
+ rtb_.EmitUnlockObject(obj);
+ return;
+}
+
+llvm::Value* GBCExpanderPass::Expand_ArrayGet(llvm::Value* array_addr,
+ llvm::Value* index_value,
+ JType elem_jty) {
+ llvm::Value* array_elem_addr =
+ EmitArrayGEP(array_addr, index_value, elem_jty);
+
+ return irb_.CreateLoad(array_elem_addr, kTBAAHeapArray, elem_jty);
+}
+
+void GBCExpanderPass::Expand_ArrayPut(llvm::Value* new_value,
+ llvm::Value* array_addr,
+ llvm::Value* index_value,
+ JType elem_jty) {
+ llvm::Value* array_elem_addr =
+ EmitArrayGEP(array_addr, index_value, elem_jty);
+
+ irb_.CreateStore(new_value, array_elem_addr, kTBAAHeapArray, elem_jty);
+
+ return;
+}
+
+void GBCExpanderPass::Expand_FilledNewArray(llvm::CallInst& call_inst) {
+ // Most of the codes refer to MethodCompiler::EmitInsn_FilledNewArray
+ llvm::Value* array = call_inst.getArgOperand(0);
+
+ uint32_t element_jty =
+ llvm::cast<llvm::ConstantInt>(call_inst.getArgOperand(1))->getZExtValue();
+
+ DCHECK(call_inst.getNumArgOperands() > 2);
+ unsigned num_elements = (call_inst.getNumArgOperands() - 2);
+
+ bool is_elem_int_ty = (static_cast<JType>(element_jty) == kInt);
+
+ uint32_t alignment;
+ llvm::Constant* elem_size;
+ llvm::PointerType* field_type;
+
+ // NOTE: Currently filled-new-array only supports 'L', '[', and 'I'
+ // as the element, thus we are only checking 2 cases: primitive int and
+ // non-primitive type.
+ if (is_elem_int_ty) {
+ alignment = sizeof(int32_t);
+ elem_size = irb_.getPtrEquivInt(sizeof(int32_t));
+ field_type = irb_.getJIntTy()->getPointerTo();
+ } else {
+ alignment = irb_.getSizeOfPtrEquivInt();
+ elem_size = irb_.getSizeOfPtrEquivIntValue();
+ field_type = irb_.getJObjectTy()->getPointerTo();
+ }
+
+ llvm::Value* data_field_offset =
+ irb_.getPtrEquivInt(art::mirror::Array::DataOffset(alignment).Int32Value());
+
+ llvm::Value* data_field_addr =
+ irb_.CreatePtrDisp(array, data_field_offset, field_type);
+
+ for (unsigned i = 0; i < num_elements; ++i) {
+ // Values to fill the array begin at the 3rd argument
+ llvm::Value* reg_value = call_inst.getArgOperand(2 + i);
+
+ irb_.CreateStore(reg_value, data_field_addr, kTBAAHeapArray);
+
+ data_field_addr =
+ irb_.CreatePtrDisp(data_field_addr, elem_size, field_type);
+ }
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::Expand_IGetFast(llvm::Value* field_offset_value,
+ llvm::Value* /*is_volatile_value*/,
+ llvm::Value* object_addr,
+ JType field_jty) {
+ int field_offset =
+ llvm::cast<llvm::ConstantInt>(field_offset_value)->getSExtValue();
+
+ DCHECK_GE(field_offset, 0);
+
+ llvm::PointerType* field_type =
+ irb_.getJType(field_jty)->getPointerTo();
+
+ field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* field_addr =
+ irb_.CreatePtrDisp(object_addr, field_offset_value, field_type);
+
+ // TODO: Check is_volatile. We need to generate atomic load instruction
+ // when is_volatile is true.
+ return irb_.CreateLoad(field_addr, kTBAAHeapInstance, field_jty);
+}
+
+void GBCExpanderPass::Expand_IPutFast(llvm::Value* field_offset_value,
+ llvm::Value* /* is_volatile_value */,
+ llvm::Value* object_addr,
+ llvm::Value* new_value,
+ JType field_jty) {
+ int field_offset =
+ llvm::cast<llvm::ConstantInt>(field_offset_value)->getSExtValue();
+
+ DCHECK_GE(field_offset, 0);
+
+ llvm::PointerType* field_type =
+ irb_.getJType(field_jty)->getPointerTo();
+
+ field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* field_addr =
+ irb_.CreatePtrDisp(object_addr, field_offset_value, field_type);
+
+ // TODO: Check is_volatile. We need to generate atomic store instruction
+ // when is_volatile is true.
+ irb_.CreateStore(new_value, field_addr, kTBAAHeapInstance, field_jty);
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::Expand_SGetFast(llvm::Value* static_storage_addr,
+ llvm::Value* field_offset_value,
+ llvm::Value* /*is_volatile_value*/,
+ JType field_jty) {
+ int field_offset =
+ llvm::cast<llvm::ConstantInt>(field_offset_value)->getSExtValue();
+
+ DCHECK_GE(field_offset, 0);
+
+ llvm::Value* static_field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* static_field_addr =
+ irb_.CreatePtrDisp(static_storage_addr, static_field_offset_value,
+ irb_.getJType(field_jty)->getPointerTo());
+
+ // TODO: Check is_volatile. We need to generate atomic store instruction
+ // when is_volatile is true.
+ return irb_.CreateLoad(static_field_addr, kTBAAHeapStatic, field_jty);
+}
+
+void GBCExpanderPass::Expand_SPutFast(llvm::Value* static_storage_addr,
+ llvm::Value* field_offset_value,
+ llvm::Value* /* is_volatile_value */,
+ llvm::Value* new_value,
+ JType field_jty) {
+ int field_offset =
+ llvm::cast<llvm::ConstantInt>(field_offset_value)->getSExtValue();
+
+ DCHECK_GE(field_offset, 0);
+
+ llvm::Value* static_field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* static_field_addr =
+ irb_.CreatePtrDisp(static_storage_addr, static_field_offset_value,
+ irb_.getJType(field_jty)->getPointerTo());
+
+ // TODO: Check is_volatile. We need to generate atomic store instruction
+ // when is_volatile is true.
+ irb_.CreateStore(new_value, static_field_addr, kTBAAHeapStatic, field_jty);
+
+ return;
+}
+
+llvm::Value*
+GBCExpanderPass::Expand_LoadDeclaringClassSSB(llvm::Value* method_object_addr) {
+ return irb_.LoadFromObjectOffset(method_object_addr,
+ art::mirror::AbstractMethod::DeclaringClassOffset().Int32Value(),
+ irb_.getJObjectTy(),
+ kTBAAConstJObject);
+}
+
+llvm::Value*
+GBCExpanderPass::Expand_LoadClassSSBFromDexCache(llvm::Value* type_idx_value) {
+ uint32_t type_idx =
+ llvm::cast<llvm::ConstantInt>(type_idx_value)->getZExtValue();
+
+ llvm::Value* storage_field_addr =
+ EmitLoadDexCacheStaticStorageFieldAddr(type_idx);
+
+ return irb_.CreateLoad(storage_field_addr, kTBAARuntimeInfo);
+}
+
+llvm::Value*
+GBCExpanderPass::Expand_GetSDCalleeMethodObjAddrFast(llvm::Value* callee_method_idx_value) {
+ uint32_t callee_method_idx =
+ llvm::cast<llvm::ConstantInt>(callee_method_idx_value)->getZExtValue();
+
+ return EmitLoadSDCalleeMethodObjectAddr(callee_method_idx);
+}
+
+llvm::Value* GBCExpanderPass::Expand_GetVirtualCalleeMethodObjAddrFast(
+ llvm::Value* vtable_idx_value,
+ llvm::Value* this_addr) {
+ int vtable_idx =
+ llvm::cast<llvm::ConstantInt>(vtable_idx_value)->getSExtValue();
+
+ return EmitLoadVirtualCalleeMethodObjectAddr(vtable_idx, this_addr);
+}
+
+llvm::Value* GBCExpanderPass::Expand_Invoke(llvm::CallInst& call_inst) {
+ // Most of the codes refer to MethodCompiler::EmitInsn_Invoke
+ llvm::Value* callee_method_object_addr = call_inst.getArgOperand(0);
+ unsigned num_args = call_inst.getNumArgOperands();
+ llvm::Type* ret_type = call_inst.getType();
+
+ // Determine the function type of the callee method
+ std::vector<llvm::Type*> args_type;
+ std::vector<llvm::Value*> args;
+ for (unsigned i = 0; i < num_args; i++) {
+ args.push_back(call_inst.getArgOperand(i));
+ args_type.push_back(args[i]->getType());
+ }
+
+ llvm::FunctionType* callee_method_type =
+ llvm::FunctionType::get(ret_type, args_type, false);
+
+ llvm::Value* code_addr =
+ irb_.LoadFromObjectOffset(callee_method_object_addr,
+ art::mirror::AbstractMethod::GetCodeOffset().Int32Value(),
+ callee_method_type->getPointerTo(),
+ kTBAARuntimeInfo);
+
+ // Invoke callee
+ llvm::Value* retval = irb_.CreateCall(code_addr, args);
+
+ return retval;
+}
+
+llvm::Value* GBCExpanderPass::Expand_DivRem(llvm::CallInst& call_inst,
+ bool is_div, JType op_jty) {
+ llvm::Value* dividend = call_inst.getArgOperand(0);
+ llvm::Value* divisor = call_inst.getArgOperand(1);
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ EmitGuard_DivZeroException(dex_pc, divisor, op_jty);
+ // Most of the codes refer to MethodCompiler::EmitIntDivRemResultComputation
+
+ // Check the special case: MININT / -1 = MININT
+ // That case will cause overflow, which is undefined behavior in llvm.
+ // So we check the divisor is -1 or not, if the divisor is -1, we do
+ // the special path to avoid undefined behavior.
+ llvm::Type* op_type = irb_.getJType(op_jty);
+ llvm::Value* zero = irb_.getJZero(op_jty);
+ llvm::Value* neg_one = llvm::ConstantInt::getSigned(op_type, -1);
+
+ llvm::Function* parent = irb_.GetInsertBlock()->getParent();
+ llvm::BasicBlock* eq_neg_one = llvm::BasicBlock::Create(context_, "", parent);
+ llvm::BasicBlock* ne_neg_one = llvm::BasicBlock::Create(context_, "", parent);
+ llvm::BasicBlock* neg_one_cont =
+ llvm::BasicBlock::Create(context_, "", parent);
+
+ llvm::Value* is_equal_neg_one = irb_.CreateICmpEQ(divisor, neg_one);
+ irb_.CreateCondBr(is_equal_neg_one, eq_neg_one, ne_neg_one, kUnlikely);
+
+ // If divisor == -1
+ irb_.SetInsertPoint(eq_neg_one);
+ llvm::Value* eq_result;
+ if (is_div) {
+ // We can just change from "dividend div -1" to "neg dividend". The sub
+ // don't care the sign/unsigned because of two's complement representation.
+ // And the behavior is what we want:
+ // -(2^n) (2^n)-1
+ // MININT < k <= MAXINT -> mul k -1 = -k
+ // MININT == k -> mul k -1 = k
+ //
+ // LLVM use sub to represent 'neg'
+ eq_result = irb_.CreateSub(zero, dividend);
+ } else {
+ // Everything modulo -1 will be 0.
+ eq_result = zero;
+ }
+ irb_.CreateBr(neg_one_cont);
+
+ // If divisor != -1, just do the division.
+ irb_.SetInsertPoint(ne_neg_one);
+ llvm::Value* ne_result;
+ if (is_div) {
+ ne_result = irb_.CreateSDiv(dividend, divisor);
+ } else {
+ ne_result = irb_.CreateSRem(dividend, divisor);
+ }
+ irb_.CreateBr(neg_one_cont);
+
+ irb_.SetInsertPoint(neg_one_cont);
+ llvm::PHINode* result = irb_.CreatePHI(op_type, 2);
+ result->addIncoming(eq_result, eq_neg_one);
+ result->addIncoming(ne_result, ne_neg_one);
+
+ return result;
+}
+
+void GBCExpanderPass::Expand_AllocaShadowFrame(llvm::Value* num_vregs_value) {
+ // Most of the codes refer to MethodCompiler::EmitPrologueAllocShadowFrame and
+ // MethodCompiler::EmitPushShadowFrame
+ uint16_t num_vregs =
+ llvm::cast<llvm::ConstantInt>(num_vregs_value)->getZExtValue();
+
+ llvm::StructType* shadow_frame_type =
+ irb_.getShadowFrameTy(num_vregs);
+
+ // Create allocas at the start of entry block.
+ llvm::IRBuilderBase::InsertPoint irb_ip_original = irb_.saveIP();
+ llvm::BasicBlock* entry_block = &func_->front();
+ irb_.SetInsertPoint(&entry_block->front());
+
+ shadow_frame_ = irb_.CreateAlloca(shadow_frame_type);
+
+ // Alloca a pointer to old shadow frame
+ old_shadow_frame_ =
+ irb_.CreateAlloca(shadow_frame_type->getElementType(0)->getPointerTo());
+
+ irb_.restoreIP(irb_ip_original);
+
+ // Push the shadow frame
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* shadow_frame_upcast =
+ irb_.CreateConstGEP2_32(shadow_frame_, 0, 0);
+
+ llvm::Value* result = rtb_.EmitPushShadowFrame(shadow_frame_upcast,
+ method_object_addr,
+ num_vregs);
+
+ irb_.CreateStore(result, old_shadow_frame_, kTBAARegister);
+
+ return;
+}
+
+void GBCExpanderPass::Expand_SetVReg(llvm::Value* entry_idx,
+ llvm::Value* value) {
+ DCHECK(shadow_frame_ != NULL);
+
+ llvm::Value* gep_index[] = {
+ irb_.getInt32(0), // No pointer displacement
+ irb_.getInt32(1), // VRegs
+ entry_idx // Pointer field
+ };
+
+ llvm::Value* vreg_addr = irb_.CreateGEP(shadow_frame_, gep_index);
+
+ irb_.CreateStore(value,
+ irb_.CreateBitCast(vreg_addr, value->getType()->getPointerTo()),
+ kTBAAShadowFrame);
+ return;
+}
+
+void GBCExpanderPass::Expand_PopShadowFrame() {
+ if (old_shadow_frame_ == NULL) {
+ return;
+ }
+ rtb_.EmitPopShadowFrame(irb_.CreateLoad(old_shadow_frame_, kTBAARegister));
+ return;
+}
+
+void GBCExpanderPass::Expand_UpdateDexPC(llvm::Value* dex_pc_value) {
+ irb_.StoreToObjectOffset(shadow_frame_,
+ art::ShadowFrame::DexPCOffset(),
+ dex_pc_value,
+ kTBAAShadowFrame);
+ return;
+}
+
+void GBCExpanderPass::InsertStackOverflowCheck(llvm::Function& func) {
+ // All alloca instructions are generated in the first basic block of the
+ // function, and there are no alloca instructions after the first non-alloca
+ // instruction.
+
+ llvm::BasicBlock* first_basic_block = &func.front();
+
+ // Look for first non-alloca instruction
+ llvm::BasicBlock::iterator first_non_alloca = first_basic_block->begin();
+ while (llvm::isa<llvm::AllocaInst>(first_non_alloca)) {
+ ++first_non_alloca;
+ }
+
+ irb_.SetInsertPoint(first_non_alloca);
+
+ // Insert stack overflow check codes before first_non_alloca (i.e., after all
+ // alloca instructions)
+ EmitStackOverflowCheck(&*first_non_alloca);
+
+ irb_.Runtime().EmitTestSuspend();
+
+ llvm::BasicBlock* next_basic_block = irb_.GetInsertBlock();
+ if (next_basic_block != first_basic_block) {
+ // Splice the rest of the instruction to the continuing basic block
+ next_basic_block->getInstList().splice(
+ irb_.GetInsertPoint(), first_basic_block->getInstList(),
+ first_non_alloca, first_basic_block->end());
+
+ // Rewrite the basic block
+ RewriteBasicBlock(next_basic_block);
+
+ // Update the phi-instructions in the successor basic block
+ UpdatePhiInstruction(first_basic_block, irb_.GetInsertBlock());
+ }
+
+ // We have changed the basic block
+ changed_ = true;
+}
+
+// ==== High-level intrinsic expander ==========================================
+
+llvm::Value* GBCExpanderPass::Expand_FPCompare(llvm::Value* src1_value,
+ llvm::Value* src2_value,
+ bool gt_bias) {
+ llvm::Value* cmp_eq = irb_.CreateFCmpOEQ(src1_value, src2_value);
+ llvm::Value* cmp_lt;
+
+ if (gt_bias) {
+ cmp_lt = irb_.CreateFCmpOLT(src1_value, src2_value);
+ } else {
+ cmp_lt = irb_.CreateFCmpULT(src1_value, src2_value);
+ }
+
+ return EmitCompareResultSelection(cmp_eq, cmp_lt);
+}
+
+llvm::Value* GBCExpanderPass::Expand_LongCompare(llvm::Value* src1_value, llvm::Value* src2_value) {
+ llvm::Value* cmp_eq = irb_.CreateICmpEQ(src1_value, src2_value);
+ llvm::Value* cmp_lt = irb_.CreateICmpSLT(src1_value, src2_value);
+
+ return EmitCompareResultSelection(cmp_eq, cmp_lt);
+}
+
+llvm::Value* GBCExpanderPass::EmitCompareResultSelection(llvm::Value* cmp_eq,
+ llvm::Value* cmp_lt) {
+
+ llvm::Constant* zero = irb_.getJInt(0);
+ llvm::Constant* pos1 = irb_.getJInt(1);
+ llvm::Constant* neg1 = irb_.getJInt(-1);
+
+ llvm::Value* result_lt = irb_.CreateSelect(cmp_lt, neg1, pos1);
+ llvm::Value* result_eq = irb_.CreateSelect(cmp_eq, zero, result_lt);
+
+ return result_eq;
+}
+
+llvm::Value* GBCExpanderPass::Expand_IntegerShift(llvm::Value* src1_value,
+ llvm::Value* src2_value,
+ IntegerShiftKind kind,
+ JType op_jty) {
+ DCHECK(op_jty == kInt || op_jty == kLong);
+
+ // Mask and zero-extend RHS properly
+ if (op_jty == kInt) {
+ src2_value = irb_.CreateAnd(src2_value, 0x1f);
+ } else {
+ llvm::Value* masked_src2_value = irb_.CreateAnd(src2_value, 0x3f);
+ src2_value = irb_.CreateZExt(masked_src2_value, irb_.getJLongTy());
+ }
+
+ // Create integer shift llvm instruction
+ switch (kind) {
+ case kIntegerSHL:
+ return irb_.CreateShl(src1_value, src2_value);
+
+ case kIntegerSHR:
+ return irb_.CreateAShr(src1_value, src2_value);
+
+ case kIntegerUSHR:
+ return irb_.CreateLShr(src1_value, src2_value);
+
+ default:
+ LOG(FATAL) << "Unknown integer shift kind: " << kind;
+ return NULL;
+ }
+}
+
+llvm::Value* GBCExpanderPass::SignOrZeroExtendCat1Types(llvm::Value* value, JType jty) {
+ switch (jty) {
+ case kBoolean:
+ case kChar:
+ return irb_.CreateZExt(value, irb_.getJType(kInt));
+ case kByte:
+ case kShort:
+ return irb_.CreateSExt(value, irb_.getJType(kInt));
+ case kVoid:
+ case kInt:
+ case kLong:
+ case kFloat:
+ case kDouble:
+ case kObject:
+ return value; // Nothing to do.
+ default:
+ LOG(FATAL) << "Unknown java type: " << jty;
+ return NULL;
+ }
+}
+
+llvm::Value* GBCExpanderPass::TruncateCat1Types(llvm::Value* value, JType jty) {
+ switch (jty) {
+ case kBoolean:
+ case kChar:
+ case kByte:
+ case kShort:
+ return irb_.CreateTrunc(value, irb_.getJType(jty));
+ case kVoid:
+ case kInt:
+ case kLong:
+ case kFloat:
+ case kDouble:
+ case kObject:
+ return value; // Nothing to do.
+ default:
+ LOG(FATAL) << "Unknown java type: " << jty;
+ return NULL;
+ }
+}
+
+llvm::Value* GBCExpanderPass::Expand_HLArrayGet(llvm::CallInst& call_inst,
+ JType elem_jty) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ llvm::Value* array_addr = call_inst.getArgOperand(1);
+ llvm::Value* index_value = call_inst.getArgOperand(2);
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, array_addr, opt_flags);
+ EmitGuard_ArrayIndexOutOfBoundsException(dex_pc, array_addr, index_value,
+ opt_flags);
+
+ llvm::Value* array_elem_addr = EmitArrayGEP(array_addr, index_value, elem_jty);
+
+ llvm::Value* array_elem_value = irb_.CreateLoad(array_elem_addr, kTBAAHeapArray, elem_jty);
+
+ return SignOrZeroExtendCat1Types(array_elem_value, elem_jty);
+}
+
+
+void GBCExpanderPass::Expand_HLArrayPut(llvm::CallInst& call_inst,
+ JType elem_jty) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ llvm::Value* new_value = call_inst.getArgOperand(1);
+ llvm::Value* array_addr = call_inst.getArgOperand(2);
+ llvm::Value* index_value = call_inst.getArgOperand(3);
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, array_addr, opt_flags);
+ EmitGuard_ArrayIndexOutOfBoundsException(dex_pc, array_addr, index_value,
+ opt_flags);
+
+ new_value = TruncateCat1Types(new_value, elem_jty);
+
+ llvm::Value* array_elem_addr = EmitArrayGEP(array_addr, index_value, elem_jty);
+
+ if (elem_jty == kObject) { // If put an object, check the type, and mark GC card table.
+ llvm::Function* runtime_func = irb_.GetRuntime(runtime_support::CheckPutArrayElement);
+
+ irb_.CreateCall2(runtime_func, new_value, array_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ EmitMarkGCCard(new_value, array_addr);
+ }
+
+ irb_.CreateStore(new_value, array_elem_addr, kTBAAHeapArray, elem_jty);
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::Expand_HLIGet(llvm::CallInst& call_inst,
+ JType field_jty) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ llvm::Value* object_addr = call_inst.getArgOperand(1);
+ uint32_t field_idx = LV2UInt(call_inst.getArgOperand(2));
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, object_addr, opt_flags);
+
+ llvm::Value* field_value;
+
+ int field_offset;
+ bool is_volatile;
+ bool is_fast_path = driver_->ComputeInstanceFieldInfo(
+ field_idx, dex_compilation_unit_, field_offset, is_volatile, false);
+
+ if (!is_fast_path) {
+ llvm::Function* runtime_func;
+
+ if (field_jty == kObject) {
+ runtime_func = irb_.GetRuntime(runtime_support::GetObjectInstance);
+ } else if (field_jty == kLong || field_jty == kDouble) {
+ runtime_func = irb_.GetRuntime(runtime_support::Get64Instance);
+ } else {
+ runtime_func = irb_.GetRuntime(runtime_support::Get32Instance);
+ }
+
+ llvm::ConstantInt* field_idx_value = irb_.getInt32(field_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ EmitUpdateDexPC(dex_pc);
+
+ field_value = irb_.CreateCall3(runtime_func, field_idx_value,
+ method_object_addr, object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ if (field_jty == kFloat || field_jty == kDouble) {
+ field_value = irb_.CreateBitCast(field_value, irb_.getJType(field_jty));
+ }
+ } else {
+ DCHECK_GE(field_offset, 0);
+
+ llvm::PointerType* field_type =
+ irb_.getJType(field_jty)->getPointerTo();
+
+ llvm::ConstantInt* field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* field_addr =
+ irb_.CreatePtrDisp(object_addr, field_offset_value, field_type);
+
+ // TODO: Check is_volatile. We need to generate atomic load instruction
+ // when is_volatile is true.
+ field_value = irb_.CreateLoad(field_addr, kTBAAHeapInstance, field_jty);
+ field_value = SignOrZeroExtendCat1Types(field_value, field_jty);
+ }
+
+ return field_value;
+}
+
+void GBCExpanderPass::Expand_HLIPut(llvm::CallInst& call_inst,
+ JType field_jty) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ llvm::Value* new_value = call_inst.getArgOperand(1);
+ llvm::Value* object_addr = call_inst.getArgOperand(2);
+ uint32_t field_idx = LV2UInt(call_inst.getArgOperand(3));
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, object_addr, opt_flags);
+
+ int field_offset;
+ bool is_volatile;
+ bool is_fast_path = driver_->ComputeInstanceFieldInfo(
+ field_idx, dex_compilation_unit_, field_offset, is_volatile, true);
+
+ if (!is_fast_path) {
+ llvm::Function* runtime_func;
+
+ if (field_jty == kFloat) {
+ new_value = irb_.CreateBitCast(new_value, irb_.getJType(kInt));
+ } else if (field_jty == kDouble) {
+ new_value = irb_.CreateBitCast(new_value, irb_.getJType(kLong));
+ }
+
+ if (field_jty == kObject) {
+ runtime_func = irb_.GetRuntime(runtime_support::SetObjectInstance);
+ } else if (field_jty == kLong || field_jty == kDouble) {
+ runtime_func = irb_.GetRuntime(runtime_support::Set64Instance);
+ } else {
+ runtime_func = irb_.GetRuntime(runtime_support::Set32Instance);
+ }
+
+ llvm::Value* field_idx_value = irb_.getInt32(field_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.CreateCall4(runtime_func, field_idx_value,
+ method_object_addr, object_addr, new_value);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ } else {
+ DCHECK_GE(field_offset, 0);
+
+ llvm::PointerType* field_type =
+ irb_.getJType(field_jty)->getPointerTo();
+
+ llvm::Value* field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* field_addr =
+ irb_.CreatePtrDisp(object_addr, field_offset_value, field_type);
+
+ // TODO: Check is_volatile. We need to generate atomic store instruction
+ // when is_volatile is true.
+ new_value = TruncateCat1Types(new_value, field_jty);
+ irb_.CreateStore(new_value, field_addr, kTBAAHeapInstance, field_jty);
+
+ if (field_jty == kObject) { // If put an object, mark the GC card table.
+ EmitMarkGCCard(new_value, object_addr);
+ }
+ }
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::EmitLoadConstantClass(uint32_t dex_pc,
+ uint32_t type_idx) {
+ if (!driver_->CanAccessTypeWithoutChecks(dex_compilation_unit_->GetDexMethodIndex(),
+ *dex_compilation_unit_->GetDexFile(), type_idx)) {
+ llvm::Value* type_idx_value = irb_.getInt32(type_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* thread_object_addr = irb_.Runtime().EmitGetCurrentThread();
+
+ llvm::Function* runtime_func =
+ irb_.GetRuntime(runtime_support::InitializeTypeAndVerifyAccess);
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* type_object_addr =
+ irb_.CreateCall3(runtime_func, type_idx_value, method_object_addr, thread_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ return type_object_addr;
+
+ } else {
+ // Try to load the class (type) object from the test cache.
+ llvm::Value* type_field_addr =
+ EmitLoadDexCacheResolvedTypeFieldAddr(type_idx);
+
+ llvm::Value* type_object_addr = irb_.CreateLoad(type_field_addr, kTBAARuntimeInfo);
+
+ if (driver_->CanAssumeTypeIsPresentInDexCache(*dex_compilation_unit_->GetDexFile(), type_idx)) {
+ return type_object_addr;
+ }
+
+ llvm::BasicBlock* block_original = irb_.GetInsertBlock();
+
+ // Test whether class (type) object is in the dex cache or not
+ llvm::Value* equal_null =
+ irb_.CreateICmpEQ(type_object_addr, irb_.getJNull());
+
+ llvm::BasicBlock* block_cont =
+ CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ llvm::BasicBlock* block_load_class =
+ CreateBasicBlockWithDexPC(dex_pc, "load_class");
+
+ irb_.CreateCondBr(equal_null, block_load_class, block_cont, kUnlikely);
+
+ // Failback routine to load the class object
+ irb_.SetInsertPoint(block_load_class);
+
+ llvm::Function* runtime_func = irb_.GetRuntime(runtime_support::InitializeType);
+
+ llvm::Constant* type_idx_value = irb_.getInt32(type_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* thread_object_addr = irb_.Runtime().EmitGetCurrentThread();
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* loaded_type_object_addr =
+ irb_.CreateCall3(runtime_func, type_idx_value, method_object_addr, thread_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ llvm::BasicBlock* block_after_load_class = irb_.GetInsertBlock();
+
+ irb_.CreateBr(block_cont);
+
+ // Now the class object must be loaded
+ irb_.SetInsertPoint(block_cont);
+
+ llvm::PHINode* phi = irb_.CreatePHI(irb_.getJObjectTy(), 2);
+
+ phi->addIncoming(type_object_addr, block_original);
+ phi->addIncoming(loaded_type_object_addr, block_after_load_class);
+
+ return phi;
+ }
+}
+
+llvm::Value* GBCExpanderPass::EmitLoadStaticStorage(uint32_t dex_pc,
+ uint32_t type_idx) {
+ llvm::BasicBlock* block_load_static =
+ CreateBasicBlockWithDexPC(dex_pc, "load_static");
+
+ llvm::BasicBlock* block_cont = CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ // Load static storage from dex cache
+ llvm::Value* storage_field_addr =
+ EmitLoadDexCacheStaticStorageFieldAddr(type_idx);
+
+ llvm::Value* storage_object_addr = irb_.CreateLoad(storage_field_addr, kTBAARuntimeInfo);
+
+ llvm::BasicBlock* block_original = irb_.GetInsertBlock();
+
+ // Test: Is the static storage of this class initialized?
+ llvm::Value* equal_null =
+ irb_.CreateICmpEQ(storage_object_addr, irb_.getJNull());
+
+ irb_.CreateCondBr(equal_null, block_load_static, block_cont, kUnlikely);
+
+ // Failback routine to load the class object
+ irb_.SetInsertPoint(block_load_static);
+
+ llvm::Function* runtime_func = irb_.GetRuntime(runtime_support::InitializeStaticStorage);
+
+ llvm::Constant* type_idx_value = irb_.getInt32(type_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* thread_object_addr = irb_.Runtime().EmitGetCurrentThread();
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* loaded_storage_object_addr =
+ irb_.CreateCall3(runtime_func, type_idx_value, method_object_addr, thread_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ llvm::BasicBlock* block_after_load_static = irb_.GetInsertBlock();
+
+ irb_.CreateBr(block_cont);
+
+ // Now the class object must be loaded
+ irb_.SetInsertPoint(block_cont);
+
+ llvm::PHINode* phi = irb_.CreatePHI(irb_.getJObjectTy(), 2);
+
+ phi->addIncoming(storage_object_addr, block_original);
+ phi->addIncoming(loaded_storage_object_addr, block_after_load_static);
+
+ return phi;
+}
+
+llvm::Value* GBCExpanderPass::Expand_HLSget(llvm::CallInst& call_inst,
+ JType field_jty) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t field_idx = LV2UInt(call_inst.getArgOperand(0));
+
+ int field_offset;
+ int ssb_index;
+ bool is_referrers_class;
+ bool is_volatile;
+
+ bool is_fast_path = driver_->ComputeStaticFieldInfo(
+ field_idx, dex_compilation_unit_, field_offset, ssb_index,
+ is_referrers_class, is_volatile, false);
+
+ llvm::Value* static_field_value;
+
+ if (!is_fast_path) {
+ llvm::Function* runtime_func;
+
+ if (field_jty == kObject) {
+ runtime_func = irb_.GetRuntime(runtime_support::GetObjectStatic);
+ } else if (field_jty == kLong || field_jty == kDouble) {
+ runtime_func = irb_.GetRuntime(runtime_support::Get64Static);
+ } else {
+ runtime_func = irb_.GetRuntime(runtime_support::Get32Static);
+ }
+
+ llvm::Constant* field_idx_value = irb_.getInt32(field_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ EmitUpdateDexPC(dex_pc);
+
+ static_field_value =
+ irb_.CreateCall2(runtime_func, field_idx_value, method_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ if (field_jty == kFloat || field_jty == kDouble) {
+ static_field_value = irb_.CreateBitCast(static_field_value, irb_.getJType(field_jty));
+ }
+ } else {
+ DCHECK_GE(field_offset, 0);
+
+ llvm::Value* static_storage_addr = NULL;
+
+ if (is_referrers_class) {
+ // Fast path, static storage base is this method's class
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ static_storage_addr =
+ irb_.LoadFromObjectOffset(method_object_addr,
+ art::mirror::AbstractMethod::DeclaringClassOffset().Int32Value(),
+ irb_.getJObjectTy(),
+ kTBAAConstJObject);
+ } else {
+ // Medium path, static storage base in a different class which
+ // requires checks that the other class is initialized
+ DCHECK_GE(ssb_index, 0);
+ static_storage_addr = EmitLoadStaticStorage(dex_pc, ssb_index);
+ }
+
+ llvm::Value* static_field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* static_field_addr =
+ irb_.CreatePtrDisp(static_storage_addr, static_field_offset_value,
+ irb_.getJType(field_jty)->getPointerTo());
+
+ // TODO: Check is_volatile. We need to generate atomic load instruction
+ // when is_volatile is true.
+ static_field_value = irb_.CreateLoad(static_field_addr, kTBAAHeapStatic, field_jty);
+ static_field_value = SignOrZeroExtendCat1Types(static_field_value, field_jty);
+ }
+
+ return static_field_value;
+}
+
+void GBCExpanderPass::Expand_HLSput(llvm::CallInst& call_inst,
+ JType field_jty) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t field_idx = LV2UInt(call_inst.getArgOperand(0));
+ llvm::Value* new_value = call_inst.getArgOperand(1);
+
+ if (field_jty == kFloat || field_jty == kDouble) {
+ new_value = irb_.CreateBitCast(new_value, irb_.getJType(field_jty));
+ }
+
+ int field_offset;
+ int ssb_index;
+ bool is_referrers_class;
+ bool is_volatile;
+
+ bool is_fast_path = driver_->ComputeStaticFieldInfo(
+ field_idx, dex_compilation_unit_, field_offset, ssb_index,
+ is_referrers_class, is_volatile, true);
+
+ if (!is_fast_path) {
+ llvm::Function* runtime_func;
+
+ if (field_jty == kObject) {
+ runtime_func = irb_.GetRuntime(runtime_support::SetObjectStatic);
+ } else if (field_jty == kLong || field_jty == kDouble) {
+ runtime_func = irb_.GetRuntime(runtime_support::Set64Static);
+ } else {
+ runtime_func = irb_.GetRuntime(runtime_support::Set32Static);
+ }
+
+ if (field_jty == kFloat) {
+ new_value = irb_.CreateBitCast(new_value, irb_.getJType(kInt));
+ } else if (field_jty == kDouble) {
+ new_value = irb_.CreateBitCast(new_value, irb_.getJType(kLong));
+ }
+
+ llvm::Constant* field_idx_value = irb_.getInt32(field_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.CreateCall3(runtime_func, field_idx_value,
+ method_object_addr, new_value);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ } else {
+ DCHECK_GE(field_offset, 0);
+
+ llvm::Value* static_storage_addr = NULL;
+
+ if (is_referrers_class) {
+ // Fast path, static storage base is this method's class
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ static_storage_addr =
+ irb_.LoadFromObjectOffset(method_object_addr,
+ art::mirror::AbstractMethod::DeclaringClassOffset().Int32Value(),
+ irb_.getJObjectTy(),
+ kTBAAConstJObject);
+ } else {
+ // Medium path, static storage base in a different class which
+ // requires checks that the other class is initialized
+ DCHECK_GE(ssb_index, 0);
+ static_storage_addr = EmitLoadStaticStorage(dex_pc, ssb_index);
+ }
+
+ llvm::Value* static_field_offset_value = irb_.getPtrEquivInt(field_offset);
+
+ llvm::Value* static_field_addr =
+ irb_.CreatePtrDisp(static_storage_addr, static_field_offset_value,
+ irb_.getJType(field_jty)->getPointerTo());
+
+ // TODO: Check is_volatile. We need to generate atomic store instruction
+ // when is_volatile is true.
+ new_value = TruncateCat1Types(new_value, field_jty);
+ irb_.CreateStore(new_value, static_field_addr, kTBAAHeapStatic, field_jty);
+
+ if (field_jty == kObject) { // If put an object, mark the GC card table.
+ EmitMarkGCCard(new_value, static_storage_addr);
+ }
+ }
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::Expand_ConstString(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t string_idx = LV2UInt(call_inst.getArgOperand(0));
+
+ llvm::Value* string_field_addr = EmitLoadDexCacheStringFieldAddr(string_idx);
+
+ llvm::Value* string_addr = irb_.CreateLoad(string_field_addr, kTBAARuntimeInfo);
+
+ if (!driver_->CanAssumeStringIsPresentInDexCache(*dex_compilation_unit_->GetDexFile(),
+ string_idx)) {
+ llvm::BasicBlock* block_str_exist =
+ CreateBasicBlockWithDexPC(dex_pc, "str_exist");
+
+ llvm::BasicBlock* block_str_resolve =
+ CreateBasicBlockWithDexPC(dex_pc, "str_resolve");
+
+ llvm::BasicBlock* block_cont =
+ CreateBasicBlockWithDexPC(dex_pc, "str_cont");
+
+ // Test: Is the string resolved and in the dex cache?
+ llvm::Value* equal_null = irb_.CreateICmpEQ(string_addr, irb_.getJNull());
+
+ irb_.CreateCondBr(equal_null, block_str_resolve, block_str_exist, kUnlikely);
+
+ // String is resolved, go to next basic block.
+ irb_.SetInsertPoint(block_str_exist);
+ irb_.CreateBr(block_cont);
+
+ // String is not resolved yet, resolve it now.
+ irb_.SetInsertPoint(block_str_resolve);
+
+ llvm::Function* runtime_func = irb_.GetRuntime(runtime_support::ResolveString);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* string_idx_value = irb_.getInt32(string_idx);
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* result = irb_.CreateCall2(runtime_func, method_object_addr,
+ string_idx_value);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ irb_.CreateBr(block_cont);
+
+
+ llvm::BasicBlock* block_pre_cont = irb_.GetInsertBlock();
+
+ irb_.SetInsertPoint(block_cont);
+
+ llvm::PHINode* phi = irb_.CreatePHI(irb_.getJObjectTy(), 2);
+
+ phi->addIncoming(string_addr, block_str_exist);
+ phi->addIncoming(result, block_pre_cont);
+
+ string_addr = phi;
+ }
+
+ return string_addr;
+}
+
+llvm::Value* GBCExpanderPass::Expand_ConstClass(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t type_idx = LV2UInt(call_inst.getArgOperand(0));
+
+ llvm::Value* type_object_addr = EmitLoadConstantClass(dex_pc, type_idx);
+
+ return type_object_addr;
+}
+
+void GBCExpanderPass::Expand_MonitorEnter(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ llvm::Value* object_addr = call_inst.getArgOperand(1);
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, object_addr, opt_flags);
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.Runtime().EmitLockObject(object_addr);
+
+ return;
+}
+
+void GBCExpanderPass::Expand_MonitorExit(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ llvm::Value* object_addr = call_inst.getArgOperand(1);
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, object_addr, opt_flags);
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.Runtime().EmitUnlockObject(object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ return;
+}
+
+void GBCExpanderPass::Expand_HLCheckCast(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t type_idx = LV2UInt(call_inst.getArgOperand(0));
+ llvm::Value* object_addr = call_inst.getArgOperand(1);
+
+ llvm::BasicBlock* block_test_class =
+ CreateBasicBlockWithDexPC(dex_pc, "test_class");
+
+ llvm::BasicBlock* block_test_sub_class =
+ CreateBasicBlockWithDexPC(dex_pc, "test_sub_class");
+
+ llvm::BasicBlock* block_cont =
+ CreateBasicBlockWithDexPC(dex_pc, "checkcast_cont");
+
+ // Test: Is the reference equal to null? Act as no-op when it is null.
+ llvm::Value* equal_null = irb_.CreateICmpEQ(object_addr, irb_.getJNull());
+
+ irb_.CreateCondBr(equal_null, block_cont, block_test_class, kUnlikely);
+
+ // Test: Is the object instantiated from the given class?
+ irb_.SetInsertPoint(block_test_class);
+ llvm::Value* type_object_addr = EmitLoadConstantClass(dex_pc, type_idx);
+ DCHECK_EQ(art::mirror::Object::ClassOffset().Int32Value(), 0);
+
+ llvm::PointerType* jobject_ptr_ty = irb_.getJObjectTy();
+
+ llvm::Value* object_type_field_addr =
+ irb_.CreateBitCast(object_addr, jobject_ptr_ty->getPointerTo());
+
+ llvm::Value* object_type_object_addr =
+ irb_.CreateLoad(object_type_field_addr, kTBAAConstJObject);
+
+ llvm::Value* equal_class =
+ irb_.CreateICmpEQ(type_object_addr, object_type_object_addr);
+
+ irb_.CreateCondBr(equal_class, block_cont, block_test_sub_class, kLikely);
+
+ // Test: Is the object instantiated from the subclass of the given class?
+ irb_.SetInsertPoint(block_test_sub_class);
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.CreateCall2(irb_.GetRuntime(runtime_support::CheckCast),
+ type_object_addr, object_type_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ irb_.CreateBr(block_cont);
+
+ irb_.SetInsertPoint(block_cont);
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::Expand_InstanceOf(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t type_idx = LV2UInt(call_inst.getArgOperand(0));
+ llvm::Value* object_addr = call_inst.getArgOperand(1);
+
+ llvm::BasicBlock* block_nullp =
+ CreateBasicBlockWithDexPC(dex_pc, "nullp");
+
+ llvm::BasicBlock* block_test_class =
+ CreateBasicBlockWithDexPC(dex_pc, "test_class");
+
+ llvm::BasicBlock* block_class_equals =
+ CreateBasicBlockWithDexPC(dex_pc, "class_eq");
+
+ llvm::BasicBlock* block_test_sub_class =
+ CreateBasicBlockWithDexPC(dex_pc, "test_sub_class");
+
+ llvm::BasicBlock* block_cont =
+ CreateBasicBlockWithDexPC(dex_pc, "instance_of_cont");
+
+ // Overview of the following code :
+ // We check for null, if so, then false, otherwise check for class == . If so
+ // then true, otherwise do callout slowpath.
+ //
+ // Test: Is the reference equal to null? Set 0 when it is null.
+ llvm::Value* equal_null = irb_.CreateICmpEQ(object_addr, irb_.getJNull());
+
+ irb_.CreateCondBr(equal_null, block_nullp, block_test_class, kUnlikely);
+
+ irb_.SetInsertPoint(block_nullp);
+ irb_.CreateBr(block_cont);
+
+ // Test: Is the object instantiated from the given class?
+ irb_.SetInsertPoint(block_test_class);
+ llvm::Value* type_object_addr = EmitLoadConstantClass(dex_pc, type_idx);
+ DCHECK_EQ(art::mirror::Object::ClassOffset().Int32Value(), 0);
+
+ llvm::PointerType* jobject_ptr_ty = irb_.getJObjectTy();
+
+ llvm::Value* object_type_field_addr =
+ irb_.CreateBitCast(object_addr, jobject_ptr_ty->getPointerTo());
+
+ llvm::Value* object_type_object_addr =
+ irb_.CreateLoad(object_type_field_addr, kTBAAConstJObject);
+
+ llvm::Value* equal_class =
+ irb_.CreateICmpEQ(type_object_addr, object_type_object_addr);
+
+ irb_.CreateCondBr(equal_class, block_class_equals, block_test_sub_class, kLikely);
+
+ irb_.SetInsertPoint(block_class_equals);
+ irb_.CreateBr(block_cont);
+
+ // Test: Is the object instantiated from the subclass of the given class?
+ irb_.SetInsertPoint(block_test_sub_class);
+ llvm::Value* result =
+ irb_.CreateCall2(irb_.GetRuntime(runtime_support::IsAssignable),
+ type_object_addr, object_type_object_addr);
+ irb_.CreateBr(block_cont);
+
+ irb_.SetInsertPoint(block_cont);
+
+ llvm::PHINode* phi = irb_.CreatePHI(irb_.getJIntTy(), 3);
+
+ phi->addIncoming(irb_.getJInt(0), block_nullp);
+ phi->addIncoming(irb_.getJInt(1), block_class_equals);
+ phi->addIncoming(result, block_test_sub_class);
+
+ return phi;
+}
+
+llvm::Value* GBCExpanderPass::Expand_NewInstance(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t type_idx = LV2UInt(call_inst.getArgOperand(0));
+
+ llvm::Function* runtime_func;
+ if (driver_->CanAccessInstantiableTypeWithoutChecks(dex_compilation_unit_->GetDexMethodIndex(),
+ *dex_compilation_unit_->GetDexFile(),
+ type_idx)) {
+ runtime_func = irb_.GetRuntime(runtime_support::AllocObject);
+ } else {
+ runtime_func = irb_.GetRuntime(runtime_support::AllocObjectWithAccessCheck);
+ }
+
+ llvm::Constant* type_index_value = irb_.getInt32(type_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* thread_object_addr = irb_.Runtime().EmitGetCurrentThread();
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* object_addr =
+ irb_.CreateCall3(runtime_func, type_index_value, method_object_addr, thread_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ return object_addr;
+}
+
+llvm::Value* GBCExpanderPass::Expand_HLInvoke(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ art::InvokeType invoke_type = static_cast<art::InvokeType>(LV2UInt(call_inst.getArgOperand(0)));
+ bool is_static = (invoke_type == art::kStatic);
+ uint32_t callee_method_idx = LV2UInt(call_inst.getArgOperand(1));
+ int opt_flags = LV2UInt(call_inst.getArgOperand(2));
+
+ // Compute invoke related information for compiler decision
+ int vtable_idx = -1;
+ uintptr_t direct_code = 0;
+ uintptr_t direct_method = 0;
+ bool is_fast_path = driver_->
+ ComputeInvokeInfo(callee_method_idx, dex_compilation_unit_,
+ invoke_type, vtable_idx, direct_code, direct_method);
+
+ // Load *this* actual parameter
+ llvm::Value* this_addr = NULL;
+
+ if (!is_static) {
+ // Test: Is *this* parameter equal to null?
+ this_addr = call_inst.getArgOperand(3);
+ }
+
+ // Load the method object
+ llvm::Value* callee_method_object_addr = NULL;
+
+ if (!is_fast_path) {
+ callee_method_object_addr =
+ EmitCallRuntimeForCalleeMethodObjectAddr(callee_method_idx, invoke_type,
+ this_addr, dex_pc, is_fast_path);
+
+ if (!is_static) {
+ EmitGuard_NullPointerException(dex_pc, this_addr, opt_flags);
+ }
+ } else {
+ if (!is_static) {
+ EmitGuard_NullPointerException(dex_pc, this_addr, opt_flags);
+ }
+
+ switch (invoke_type) {
+ case art::kStatic:
+ case art::kDirect:
+ if (direct_method != 0u &&
+ direct_method != static_cast<uintptr_t>(-1)) {
+ callee_method_object_addr =
+ irb_.CreateIntToPtr(irb_.getPtrEquivInt(direct_method),
+ irb_.getJObjectTy());
+ } else {
+ callee_method_object_addr =
+ EmitLoadSDCalleeMethodObjectAddr(callee_method_idx);
+ }
+ break;
+
+ case art::kVirtual:
+ DCHECK(vtable_idx != -1);
+ callee_method_object_addr =
+ EmitLoadVirtualCalleeMethodObjectAddr(vtable_idx, this_addr);
+ break;
+
+ case art::kSuper:
+ LOG(FATAL) << "invoke-super should be promoted to invoke-direct in "
+ "the fast path.";
+ break;
+
+ case art::kInterface:
+ callee_method_object_addr =
+ EmitCallRuntimeForCalleeMethodObjectAddr(callee_method_idx,
+ invoke_type, this_addr,
+ dex_pc, is_fast_path);
+ break;
+ }
+ }
+
+ // Load the actual parameter
+ std::vector<llvm::Value*> args;
+
+ args.push_back(callee_method_object_addr); // method object for callee
+
+ for (uint32_t i = 3; i < call_inst.getNumArgOperands(); ++i) {
+ args.push_back(call_inst.getArgOperand(i));
+ }
+
+ // Generate the load of the Method*. We base the return type on that of the call as method's
+ // returning a value are void calls if the return value is unused.
+ llvm::Value* code_addr;
+ if (direct_code != 0u &&
+ direct_code != static_cast<uintptr_t>(-1)) {
+ code_addr =
+ irb_.CreateIntToPtr(irb_.getPtrEquivInt(direct_code),
+ GetFunctionType(call_inst.getType(), callee_method_idx, is_static)->getPointerTo());
+ } else {
+ code_addr =
+ irb_.LoadFromObjectOffset(callee_method_object_addr,
+ art::mirror::AbstractMethod::GetCodeOffset().Int32Value(),
+ GetFunctionType(call_inst.getType(), callee_method_idx, is_static)->getPointerTo(),
+ kTBAARuntimeInfo);
+ }
+
+ // Invoke callee
+ EmitUpdateDexPC(dex_pc);
+ llvm::Value* retval = irb_.CreateCall(code_addr, args);
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ return retval;
+}
+
+llvm::Value* GBCExpanderPass::Expand_OptArrayLength(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ // Get the array object address
+ llvm::Value* array_addr = call_inst.getArgOperand(1);
+ int opt_flags = LV2UInt(call_inst.getArgOperand(0));
+
+ EmitGuard_NullPointerException(dex_pc, array_addr, opt_flags);
+
+ // Get the array length and store it to the register
+ return EmitLoadArrayLength(array_addr);
+}
+
+llvm::Value* GBCExpanderPass::Expand_NewArray(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t type_idx = LV2UInt(call_inst.getArgOperand(0));
+ llvm::Value* length = call_inst.getArgOperand(1);
+
+ return EmitAllocNewArray(dex_pc, length, type_idx, false);
+}
+
+llvm::Value* GBCExpanderPass::Expand_HLFilledNewArray(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ uint32_t type_idx = LV2UInt(call_inst.getArgOperand(1));
+ uint32_t length = call_inst.getNumArgOperands() - 3;
+
+ llvm::Value* object_addr =
+ EmitAllocNewArray(dex_pc, irb_.getInt32(length), type_idx, true);
+
+ if (length > 0) {
+ // Check for the element type
+ uint32_t type_desc_len = 0;
+ const char* type_desc =
+ dex_compilation_unit_->GetDexFile()->StringByTypeIdx(type_idx, &type_desc_len);
+
+ DCHECK_GE(type_desc_len, 2u); // should be guaranteed by verifier
+ DCHECK_EQ(type_desc[0], '['); // should be guaranteed by verifier
+ bool is_elem_int_ty = (type_desc[1] == 'I');
+
+ uint32_t alignment;
+ llvm::Constant* elem_size;
+ llvm::PointerType* field_type;
+
+ // NOTE: Currently filled-new-array only supports 'L', '[', and 'I'
+ // as the element, thus we are only checking 2 cases: primitive int and
+ // non-primitive type.
+ if (is_elem_int_ty) {
+ alignment = sizeof(int32_t);
+ elem_size = irb_.getPtrEquivInt(sizeof(int32_t));
+ field_type = irb_.getJIntTy()->getPointerTo();
+ } else {
+ alignment = irb_.getSizeOfPtrEquivInt();
+ elem_size = irb_.getSizeOfPtrEquivIntValue();
+ field_type = irb_.getJObjectTy()->getPointerTo();
+ }
+
+ llvm::Value* data_field_offset =
+ irb_.getPtrEquivInt(art::mirror::Array::DataOffset(alignment).Int32Value());
+
+ llvm::Value* data_field_addr =
+ irb_.CreatePtrDisp(object_addr, data_field_offset, field_type);
+
+ // TODO: Tune this code. Currently we are generating one instruction for
+ // one element which may be very space consuming. Maybe changing to use
+ // memcpy may help; however, since we can't guarantee that the alloca of
+ // dalvik register are continuous, we can't perform such optimization yet.
+ for (uint32_t i = 0; i < length; ++i) {
+ llvm::Value* reg_value = call_inst.getArgOperand(i+3);
+
+ irb_.CreateStore(reg_value, data_field_addr, kTBAAHeapArray);
+
+ data_field_addr =
+ irb_.CreatePtrDisp(data_field_addr, elem_size, field_type);
+ }
+ }
+
+ return object_addr;
+}
+
+void GBCExpanderPass::Expand_HLFillArrayData(llvm::CallInst& call_inst) {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+ int32_t payload_offset = static_cast<int32_t>(dex_pc) +
+ LV2SInt(call_inst.getArgOperand(0));
+ llvm::Value* array_addr = call_inst.getArgOperand(1);
+
+ const art::Instruction::ArrayDataPayload* payload =
+ reinterpret_cast<const art::Instruction::ArrayDataPayload*>(
+ dex_compilation_unit_->GetCodeItem()->insns_ + payload_offset);
+
+ if (payload->element_count == 0) {
+ // When the number of the elements in the payload is zero, we don't have
+ // to copy any numbers. However, we should check whether the array object
+ // address is equal to null or not.
+ EmitGuard_NullPointerException(dex_pc, array_addr, 0);
+ } else {
+ // To save the code size, we are going to call the runtime function to
+ // copy the content from DexFile.
+
+ // NOTE: We will check for the NullPointerException in the runtime.
+
+ llvm::Function* runtime_func = irb_.GetRuntime(runtime_support::FillArrayData);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.CreateCall4(runtime_func,
+ method_object_addr, irb_.getInt32(dex_pc),
+ array_addr, irb_.getInt32(payload_offset));
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+ }
+
+ return;
+}
+
+llvm::Value* GBCExpanderPass::EmitAllocNewArray(uint32_t dex_pc,
+ llvm::Value* array_length_value,
+ uint32_t type_idx,
+ bool is_filled_new_array) {
+ llvm::Function* runtime_func;
+
+ bool skip_access_check =
+ driver_->CanAccessTypeWithoutChecks(dex_compilation_unit_->GetDexMethodIndex(),
+ *dex_compilation_unit_->GetDexFile(), type_idx);
+
+
+ if (is_filled_new_array) {
+ runtime_func = skip_access_check ?
+ irb_.GetRuntime(runtime_support::CheckAndAllocArray) :
+ irb_.GetRuntime(runtime_support::CheckAndAllocArrayWithAccessCheck);
+ } else {
+ runtime_func = skip_access_check ?
+ irb_.GetRuntime(runtime_support::AllocArray) :
+ irb_.GetRuntime(runtime_support::AllocArrayWithAccessCheck);
+ }
+
+ llvm::Constant* type_index_value = irb_.getInt32(type_idx);
+
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* thread_object_addr = irb_.Runtime().EmitGetCurrentThread();
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* object_addr =
+ irb_.CreateCall4(runtime_func, type_index_value, method_object_addr,
+ array_length_value, thread_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ return object_addr;
+}
+
+llvm::Value* GBCExpanderPass::
+EmitCallRuntimeForCalleeMethodObjectAddr(uint32_t callee_method_idx,
+ art::InvokeType invoke_type,
+ llvm::Value* this_addr,
+ uint32_t dex_pc,
+ bool is_fast_path) {
+
+ llvm::Function* runtime_func = NULL;
+
+ switch (invoke_type) {
+ case art::kStatic:
+ runtime_func = irb_.GetRuntime(runtime_support::FindStaticMethodWithAccessCheck);
+ break;
+
+ case art::kDirect:
+ runtime_func = irb_.GetRuntime(runtime_support::FindDirectMethodWithAccessCheck);
+ break;
+
+ case art::kVirtual:
+ runtime_func = irb_.GetRuntime(runtime_support::FindVirtualMethodWithAccessCheck);
+ break;
+
+ case art::kSuper:
+ runtime_func = irb_.GetRuntime(runtime_support::FindSuperMethodWithAccessCheck);
+ break;
+
+ case art::kInterface:
+ if (is_fast_path) {
+ runtime_func = irb_.GetRuntime(runtime_support::FindInterfaceMethod);
+ } else {
+ runtime_func = irb_.GetRuntime(runtime_support::FindInterfaceMethodWithAccessCheck);
+ }
+ break;
+ }
+
+ llvm::Value* callee_method_idx_value = irb_.getInt32(callee_method_idx);
+
+ if (this_addr == NULL) {
+ DCHECK_EQ(invoke_type, art::kStatic);
+ this_addr = irb_.getJNull();
+ }
+
+ llvm::Value* caller_method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* thread_object_addr = irb_.Runtime().EmitGetCurrentThread();
+
+ EmitUpdateDexPC(dex_pc);
+
+ llvm::Value* callee_method_object_addr =
+ irb_.CreateCall4(runtime_func,
+ callee_method_idx_value,
+ this_addr,
+ caller_method_object_addr,
+ thread_object_addr);
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+
+ return callee_method_object_addr;
+}
+
+void GBCExpanderPass::EmitMarkGCCard(llvm::Value* value, llvm::Value* target_addr) {
+ // Using runtime support, let the target can override by InlineAssembly.
+ irb_.Runtime().EmitMarkGCCard(value, target_addr);
+}
+
+void GBCExpanderPass::EmitUpdateDexPC(uint32_t dex_pc) {
+ if (shadow_frame_ == NULL) {
+ return;
+ }
+ irb_.StoreToObjectOffset(shadow_frame_,
+ art::ShadowFrame::DexPCOffset(),
+ irb_.getInt32(dex_pc),
+ kTBAAShadowFrame);
+}
+
+void GBCExpanderPass::EmitGuard_DivZeroException(uint32_t dex_pc,
+ llvm::Value* denominator,
+ JType op_jty) {
+ DCHECK(op_jty == kInt || op_jty == kLong) << op_jty;
+
+ llvm::Constant* zero = irb_.getJZero(op_jty);
+
+ llvm::Value* equal_zero = irb_.CreateICmpEQ(denominator, zero);
+
+ llvm::BasicBlock* block_exception = CreateBasicBlockWithDexPC(dex_pc, "div0");
+
+ llvm::BasicBlock* block_continue = CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ irb_.CreateCondBr(equal_zero, block_exception, block_continue, kUnlikely);
+
+ irb_.SetInsertPoint(block_exception);
+ EmitUpdateDexPC(dex_pc);
+ irb_.CreateCall(irb_.GetRuntime(runtime_support::ThrowDivZeroException));
+ EmitBranchExceptionLandingPad(dex_pc);
+
+ irb_.SetInsertPoint(block_continue);
+}
+
+void GBCExpanderPass::EmitGuard_NullPointerException(uint32_t dex_pc,
+ llvm::Value* object,
+ int opt_flags) {
+ bool ignore_null_check = ((opt_flags & MIR_IGNORE_NULL_CHECK) != 0);
+ if (ignore_null_check) {
+ llvm::BasicBlock* lpad = GetLandingPadBasicBlock(dex_pc);
+ if (lpad) {
+ // There is at least one catch: create a "fake" conditional branch to
+ // keep the exception edge to the catch block.
+ landing_pad_phi_mapping_[lpad].push_back(
+ std::make_pair(current_bb_->getUniquePredecessor(),
+ irb_.GetInsertBlock()));
+
+ llvm::BasicBlock* block_continue =
+ CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ irb_.CreateCondBr(irb_.getFalse(), lpad, block_continue, kUnlikely);
+
+ irb_.SetInsertPoint(block_continue);
+ }
+ } else {
+ llvm::Value* equal_null = irb_.CreateICmpEQ(object, irb_.getJNull());
+
+ llvm::BasicBlock* block_exception =
+ CreateBasicBlockWithDexPC(dex_pc, "nullp");
+
+ llvm::BasicBlock* block_continue =
+ CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ irb_.CreateCondBr(equal_null, block_exception, block_continue, kUnlikely);
+
+ irb_.SetInsertPoint(block_exception);
+ EmitUpdateDexPC(dex_pc);
+ irb_.CreateCall(irb_.GetRuntime(runtime_support::ThrowNullPointerException),
+ irb_.getInt32(dex_pc));
+ EmitBranchExceptionLandingPad(dex_pc);
+
+ irb_.SetInsertPoint(block_continue);
+ }
+}
+
+void
+GBCExpanderPass::EmitGuard_ArrayIndexOutOfBoundsException(uint32_t dex_pc,
+ llvm::Value* array,
+ llvm::Value* index,
+ int opt_flags) {
+ bool ignore_range_check = ((opt_flags & MIR_IGNORE_RANGE_CHECK) != 0);
+ if (ignore_range_check) {
+ llvm::BasicBlock* lpad = GetLandingPadBasicBlock(dex_pc);
+ if (lpad) {
+ // There is at least one catch: create a "fake" conditional branch to
+ // keep the exception edge to the catch block.
+ landing_pad_phi_mapping_[lpad].push_back(
+ std::make_pair(current_bb_->getUniquePredecessor(),
+ irb_.GetInsertBlock()));
+
+ llvm::BasicBlock* block_continue =
+ CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ irb_.CreateCondBr(irb_.getFalse(), lpad, block_continue, kUnlikely);
+
+ irb_.SetInsertPoint(block_continue);
+ }
+ } else {
+ llvm::Value* array_len = EmitLoadArrayLength(array);
+
+ llvm::Value* cmp = irb_.CreateICmpUGE(index, array_len);
+
+ llvm::BasicBlock* block_exception =
+ CreateBasicBlockWithDexPC(dex_pc, "overflow");
+
+ llvm::BasicBlock* block_continue =
+ CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ irb_.CreateCondBr(cmp, block_exception, block_continue, kUnlikely);
+
+ irb_.SetInsertPoint(block_exception);
+
+ EmitUpdateDexPC(dex_pc);
+ irb_.CreateCall2(irb_.GetRuntime(runtime_support::ThrowIndexOutOfBounds), index, array_len);
+ EmitBranchExceptionLandingPad(dex_pc);
+
+ irb_.SetInsertPoint(block_continue);
+ }
+}
+
+llvm::FunctionType* GBCExpanderPass::GetFunctionType(llvm::Type* ret_type, uint32_t method_idx,
+ bool is_static) {
+ // Get method signature
+ art::DexFile::MethodId const& method_id =
+ dex_compilation_unit_->GetDexFile()->GetMethodId(method_idx);
+
+ uint32_t shorty_size;
+ const char* shorty = dex_compilation_unit_->GetDexFile()->GetMethodShorty(method_id, &shorty_size);
+ CHECK_GE(shorty_size, 1u);
+
+ // Get argument type
+ std::vector<llvm::Type*> args_type;
+
+ args_type.push_back(irb_.getJObjectTy()); // method object pointer
+
+ if (!is_static) {
+ args_type.push_back(irb_.getJType('L')); // "this" object pointer
+ }
+
+ for (uint32_t i = 1; i < shorty_size; ++i) {
+ char shorty_type = art::RemapShorty(shorty[i]);
+ args_type.push_back(irb_.getJType(shorty_type));
+ }
+
+ return llvm::FunctionType::get(ret_type, args_type, false);
+}
+
+
+llvm::BasicBlock* GBCExpanderPass::
+CreateBasicBlockWithDexPC(uint32_t dex_pc, const char* postfix) {
+ std::string name;
+
+#if !defined(NDEBUG)
+ art::StringAppendF(&name, "B%04x.%s", dex_pc, postfix);
+#endif
+
+ return llvm::BasicBlock::Create(context_, name, func_);
+}
+
+llvm::BasicBlock* GBCExpanderPass::GetBasicBlock(uint32_t dex_pc) {
+ DCHECK(dex_pc < dex_compilation_unit_->GetCodeItem()->insns_size_in_code_units_);
+ CHECK(basic_blocks_[dex_pc] != NULL);
+ return basic_blocks_[dex_pc];
+}
+
+int32_t GBCExpanderPass::GetTryItemOffset(uint32_t dex_pc) {
+ int32_t min = 0;
+ int32_t max = dex_compilation_unit_->GetCodeItem()->tries_size_ - 1;
+
+ while (min <= max) {
+ int32_t mid = min + (max - min) / 2;
+
+ const art::DexFile::TryItem* ti =
+ art::DexFile::GetTryItems(*dex_compilation_unit_->GetCodeItem(), mid);
+ uint32_t start = ti->start_addr_;
+ uint32_t end = start + ti->insn_count_;
+
+ if (dex_pc < start) {
+ max = mid - 1;
+ } else if (dex_pc >= end) {
+ min = mid + 1;
+ } else {
+ return mid; // found
+ }
+ }
+
+ return -1; // not found
+}
+
+llvm::BasicBlock* GBCExpanderPass::GetLandingPadBasicBlock(uint32_t dex_pc) {
+ // Find the try item for this address in this method
+ int32_t ti_offset = GetTryItemOffset(dex_pc);
+
+ if (ti_offset == -1) {
+ return NULL; // No landing pad is available for this address.
+ }
+
+ // Check for the existing landing pad basic block
+ DCHECK_GT(basic_block_landing_pads_.size(), static_cast<size_t>(ti_offset));
+ llvm::BasicBlock* block_lpad = basic_block_landing_pads_[ti_offset];
+
+ if (block_lpad) {
+ // We have generated landing pad for this try item already. Return the
+ // same basic block.
+ return block_lpad;
+ }
+
+ // Get try item from code item
+ const art::DexFile::TryItem* ti = art::DexFile::GetTryItems(*dex_compilation_unit_->GetCodeItem(),
+ ti_offset);
+
+ std::string lpadname;
+
+#if !defined(NDEBUG)
+ art::StringAppendF(&lpadname, "lpad%d_%04x_to_%04x", ti_offset, ti->start_addr_, ti->handler_off_);
+#endif
+
+ // Create landing pad basic block
+ block_lpad = llvm::BasicBlock::Create(context_, lpadname, func_);
+
+ // Change IRBuilder insert point
+ llvm::IRBuilderBase::InsertPoint irb_ip_original = irb_.saveIP();
+ irb_.SetInsertPoint(block_lpad);
+
+ // Find catch block with matching type
+ llvm::Value* method_object_addr = EmitLoadMethodObjectAddr();
+
+ llvm::Value* ti_offset_value = irb_.getInt32(ti_offset);
+
+ llvm::Value* catch_handler_index_value =
+ irb_.CreateCall2(irb_.GetRuntime(runtime_support::FindCatchBlock),
+ method_object_addr, ti_offset_value);
+
+ // Switch instruction (Go to unwind basic block by default)
+ llvm::SwitchInst* sw =
+ irb_.CreateSwitch(catch_handler_index_value, GetUnwindBasicBlock());
+
+ // Cases with matched catch block
+ art::CatchHandlerIterator iter(*dex_compilation_unit_->GetCodeItem(), ti->start_addr_);
+
+ for (uint32_t c = 0; iter.HasNext(); iter.Next(), ++c) {
+ sw->addCase(irb_.getInt32(c), GetBasicBlock(iter.GetHandlerAddress()));
+ }
+
+ // Restore the orignal insert point for IRBuilder
+ irb_.restoreIP(irb_ip_original);
+
+ // Cache this landing pad
+ DCHECK_GT(basic_block_landing_pads_.size(), static_cast<size_t>(ti_offset));
+ basic_block_landing_pads_[ti_offset] = block_lpad;
+
+ return block_lpad;
+}
+
+llvm::BasicBlock* GBCExpanderPass::GetUnwindBasicBlock() {
+ // Check the existing unwinding baisc block block
+ if (basic_block_unwind_ != NULL) {
+ return basic_block_unwind_;
+ }
+
+ // Create new basic block for unwinding
+ basic_block_unwind_ =
+ llvm::BasicBlock::Create(context_, "exception_unwind", func_);
+
+ // Change IRBuilder insert point
+ llvm::IRBuilderBase::InsertPoint irb_ip_original = irb_.saveIP();
+ irb_.SetInsertPoint(basic_block_unwind_);
+
+ // Pop the shadow frame
+ Expand_PopShadowFrame();
+
+ // Emit the code to return default value (zero) for the given return type.
+ char ret_shorty = dex_compilation_unit_->GetShorty()[0];
+ ret_shorty = art::RemapShorty(ret_shorty);
+ if (ret_shorty == 'V') {
+ irb_.CreateRetVoid();
+ } else {
+ irb_.CreateRet(irb_.getJZero(ret_shorty));
+ }
+
+ // Restore the orignal insert point for IRBuilder
+ irb_.restoreIP(irb_ip_original);
+
+ return basic_block_unwind_;
+}
+
+void GBCExpanderPass::EmitBranchExceptionLandingPad(uint32_t dex_pc) {
+ if (llvm::BasicBlock* lpad = GetLandingPadBasicBlock(dex_pc)) {
+ landing_pad_phi_mapping_[lpad].push_back(std::make_pair(current_bb_->getUniquePredecessor(),
+ irb_.GetInsertBlock()));
+ irb_.CreateBr(lpad);
+ } else {
+ irb_.CreateBr(GetUnwindBasicBlock());
+ }
+}
+
+void GBCExpanderPass::EmitGuard_ExceptionLandingPad(uint32_t dex_pc) {
+ llvm::Value* exception_pending = irb_.Runtime().EmitIsExceptionPending();
+
+ llvm::BasicBlock* block_cont = CreateBasicBlockWithDexPC(dex_pc, "cont");
+
+ if (llvm::BasicBlock* lpad = GetLandingPadBasicBlock(dex_pc)) {
+ landing_pad_phi_mapping_[lpad].push_back(std::make_pair(current_bb_->getUniquePredecessor(),
+ irb_.GetInsertBlock()));
+ irb_.CreateCondBr(exception_pending, lpad, block_cont, kUnlikely);
+ } else {
+ irb_.CreateCondBr(exception_pending, GetUnwindBasicBlock(), block_cont, kUnlikely);
+ }
+
+ irb_.SetInsertPoint(block_cont);
+}
+
+llvm::Value*
+GBCExpanderPass::ExpandIntrinsic(IntrinsicHelper::IntrinsicId intr_id,
+ llvm::CallInst& call_inst) {
+ switch (intr_id) {
+ //==- Thread -----------------------------------------------------------==//
+ case IntrinsicHelper::GetCurrentThread: {
+ return irb_.Runtime().EmitGetCurrentThread();
+ }
+ case IntrinsicHelper::CheckSuspend: {
+ Expand_TestSuspend(call_inst);
+ return NULL;
+ }
+ case IntrinsicHelper::TestSuspend: {
+ Expand_TestSuspend(call_inst);
+ return NULL;
+ }
+ case IntrinsicHelper::MarkGCCard: {
+ Expand_MarkGCCard(call_inst);
+ return NULL;
+ }
+
+ //==- Exception --------------------------------------------------------==//
+ case IntrinsicHelper::ThrowException: {
+ return ExpandToRuntime(runtime_support::ThrowException, call_inst);
+ }
+ case IntrinsicHelper::HLThrowException: {
+ uint32_t dex_pc = LV2UInt(call_inst.getMetadata("DexOff")->getOperand(0));
+
+ EmitUpdateDexPC(dex_pc);
+
+ irb_.CreateCall(irb_.GetRuntime(runtime_support::ThrowException),
+ call_inst.getArgOperand(0));
+
+ EmitGuard_ExceptionLandingPad(dex_pc);
+ return NULL;
+ }
+ case IntrinsicHelper::GetException: {
+ return irb_.Runtime().EmitGetAndClearException();
+ }
+ case IntrinsicHelper::IsExceptionPending: {
+ return irb_.Runtime().EmitIsExceptionPending();
+ }
+ case IntrinsicHelper::FindCatchBlock: {
+ return ExpandToRuntime(runtime_support::FindCatchBlock, call_inst);
+ }
+ case IntrinsicHelper::ThrowDivZeroException: {
+ return ExpandToRuntime(runtime_support::ThrowDivZeroException, call_inst);
+ }
+ case IntrinsicHelper::ThrowNullPointerException: {
+ return ExpandToRuntime(runtime_support::ThrowNullPointerException, call_inst);
+ }
+ case IntrinsicHelper::ThrowIndexOutOfBounds: {
+ return ExpandToRuntime(runtime_support::ThrowIndexOutOfBounds, call_inst);
+ }
+
+ //==- Const String -----------------------------------------------------==//
+ case IntrinsicHelper::ConstString: {
+ return Expand_ConstString(call_inst);
+ }
+ case IntrinsicHelper::LoadStringFromDexCache: {
+ return Expand_LoadStringFromDexCache(call_inst.getArgOperand(0));
+ }
+ case IntrinsicHelper::ResolveString: {
+ return ExpandToRuntime(runtime_support::ResolveString, call_inst);
+ }
+
+ //==- Const Class ------------------------------------------------------==//
+ case IntrinsicHelper::ConstClass: {
+ return Expand_ConstClass(call_inst);
+ }
+ case IntrinsicHelper::InitializeTypeAndVerifyAccess: {
+ return ExpandToRuntime(runtime_support::InitializeTypeAndVerifyAccess, call_inst);
+ }
+ case IntrinsicHelper::LoadTypeFromDexCache: {
+ return Expand_LoadTypeFromDexCache(call_inst.getArgOperand(0));
+ }
+ case IntrinsicHelper::InitializeType: {
+ return ExpandToRuntime(runtime_support::InitializeType, call_inst);
+ }
+
+ //==- Lock -------------------------------------------------------------==//
+ case IntrinsicHelper::LockObject: {
+ Expand_LockObject(call_inst.getArgOperand(0));
+ return NULL;
+ }
+ case IntrinsicHelper::UnlockObject: {
+ Expand_UnlockObject(call_inst.getArgOperand(0));
+ return NULL;
+ }
+
+ //==- Cast -------------------------------------------------------------==//
+ case IntrinsicHelper::CheckCast: {
+ return ExpandToRuntime(runtime_support::CheckCast, call_inst);
+ }
+ case IntrinsicHelper::HLCheckCast: {
+ Expand_HLCheckCast(call_inst);
+ return NULL;
+ }
+ case IntrinsicHelper::IsAssignable: {
+ return ExpandToRuntime(runtime_support::IsAssignable, call_inst);
+ }
+
+ //==- Alloc ------------------------------------------------------------==//
+ case IntrinsicHelper::AllocObject: {
+ return ExpandToRuntime(runtime_support::AllocObject, call_inst);
+ }
+ case IntrinsicHelper::AllocObjectWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::AllocObjectWithAccessCheck, call_inst);
+ }
+
+ //==- Instance ---------------------------------------------------------==//
+ case IntrinsicHelper::NewInstance: {
+ return Expand_NewInstance(call_inst);
+ }
+ case IntrinsicHelper::InstanceOf: {
+ return Expand_InstanceOf(call_inst);
+ }
+
+ //==- Array ------------------------------------------------------------==//
+ case IntrinsicHelper::NewArray: {
+ return Expand_NewArray(call_inst);
+ }
+ case IntrinsicHelper::OptArrayLength: {
+ return Expand_OptArrayLength(call_inst);
+ }
+ case IntrinsicHelper::ArrayLength: {
+ return EmitLoadArrayLength(call_inst.getArgOperand(0));
+ }
+ case IntrinsicHelper::AllocArray: {
+ return ExpandToRuntime(runtime_support::AllocArray, call_inst);
+ }
+ case IntrinsicHelper::AllocArrayWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::AllocArrayWithAccessCheck,
+ call_inst);
+ }
+ case IntrinsicHelper::CheckAndAllocArray: {
+ return ExpandToRuntime(runtime_support::CheckAndAllocArray, call_inst);
+ }
+ case IntrinsicHelper::CheckAndAllocArrayWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::CheckAndAllocArrayWithAccessCheck,
+ call_inst);
+ }
+ case IntrinsicHelper::ArrayGet: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kInt);
+ }
+ case IntrinsicHelper::ArrayGetWide: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kLong);
+ }
+ case IntrinsicHelper::ArrayGetObject: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kObject);
+ }
+ case IntrinsicHelper::ArrayGetBoolean: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kBoolean);
+ }
+ case IntrinsicHelper::ArrayGetByte: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kByte);
+ }
+ case IntrinsicHelper::ArrayGetChar: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kChar);
+ }
+ case IntrinsicHelper::ArrayGetShort: {
+ return Expand_ArrayGet(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kShort);
+ }
+ case IntrinsicHelper::ArrayPut: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kInt);
+ return NULL;
+ }
+ case IntrinsicHelper::ArrayPutWide: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kLong);
+ return NULL;
+ }
+ case IntrinsicHelper::ArrayPutObject: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kObject);
+ return NULL;
+ }
+ case IntrinsicHelper::ArrayPutBoolean: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kBoolean);
+ return NULL;
+ }
+ case IntrinsicHelper::ArrayPutByte: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kByte);
+ return NULL;
+ }
+ case IntrinsicHelper::ArrayPutChar: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kChar);
+ return NULL;
+ }
+ case IntrinsicHelper::ArrayPutShort: {
+ Expand_ArrayPut(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kShort);
+ return NULL;
+ }
+ case IntrinsicHelper::CheckPutArrayElement: {
+ return ExpandToRuntime(runtime_support::CheckPutArrayElement, call_inst);
+ }
+ case IntrinsicHelper::FilledNewArray: {
+ Expand_FilledNewArray(call_inst);
+ return NULL;
+ }
+ case IntrinsicHelper::FillArrayData: {
+ return ExpandToRuntime(runtime_support::FillArrayData, call_inst);
+ }
+ case IntrinsicHelper::HLFillArrayData: {
+ Expand_HLFillArrayData(call_inst);
+ return NULL;
+ }
+ case IntrinsicHelper::HLFilledNewArray: {
+ return Expand_HLFilledNewArray(call_inst);
+ }
+
+ //==- Instance Field ---------------------------------------------------==//
+ case IntrinsicHelper::InstanceFieldGet:
+ case IntrinsicHelper::InstanceFieldGetBoolean:
+ case IntrinsicHelper::InstanceFieldGetByte:
+ case IntrinsicHelper::InstanceFieldGetChar:
+ case IntrinsicHelper::InstanceFieldGetShort: {
+ return ExpandToRuntime(runtime_support::Get32Instance, call_inst);
+ }
+ case IntrinsicHelper::InstanceFieldGetWide: {
+ return ExpandToRuntime(runtime_support::Get64Instance, call_inst);
+ }
+ case IntrinsicHelper::InstanceFieldGetObject: {
+ return ExpandToRuntime(runtime_support::GetObjectInstance, call_inst);
+ }
+ case IntrinsicHelper::InstanceFieldGetFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kInt);
+ }
+ case IntrinsicHelper::InstanceFieldGetWideFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kLong);
+ }
+ case IntrinsicHelper::InstanceFieldGetObjectFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kObject);
+ }
+ case IntrinsicHelper::InstanceFieldGetBooleanFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kBoolean);
+ }
+ case IntrinsicHelper::InstanceFieldGetByteFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kByte);
+ }
+ case IntrinsicHelper::InstanceFieldGetCharFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kChar);
+ }
+ case IntrinsicHelper::InstanceFieldGetShortFast: {
+ return Expand_IGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kShort);
+ }
+ case IntrinsicHelper::InstanceFieldPut:
+ case IntrinsicHelper::InstanceFieldPutBoolean:
+ case IntrinsicHelper::InstanceFieldPutByte:
+ case IntrinsicHelper::InstanceFieldPutChar:
+ case IntrinsicHelper::InstanceFieldPutShort: {
+ return ExpandToRuntime(runtime_support::Set32Instance, call_inst);
+ }
+ case IntrinsicHelper::InstanceFieldPutWide: {
+ return ExpandToRuntime(runtime_support::Set64Instance, call_inst);
+ }
+ case IntrinsicHelper::InstanceFieldPutObject: {
+ return ExpandToRuntime(runtime_support::SetObjectInstance, call_inst);
+ }
+ case IntrinsicHelper::InstanceFieldPutFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kInt);
+ return NULL;
+ }
+ case IntrinsicHelper::InstanceFieldPutWideFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kLong);
+ return NULL;
+ }
+ case IntrinsicHelper::InstanceFieldPutObjectFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kObject);
+ return NULL;
+ }
+ case IntrinsicHelper::InstanceFieldPutBooleanFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kBoolean);
+ return NULL;
+ }
+ case IntrinsicHelper::InstanceFieldPutByteFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kByte);
+ return NULL;
+ }
+ case IntrinsicHelper::InstanceFieldPutCharFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kChar);
+ return NULL;
+ }
+ case IntrinsicHelper::InstanceFieldPutShortFast: {
+ Expand_IPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kShort);
+ return NULL;
+ }
+
+ //==- Static Field -----------------------------------------------------==//
+ case IntrinsicHelper::StaticFieldGet:
+ case IntrinsicHelper::StaticFieldGetBoolean:
+ case IntrinsicHelper::StaticFieldGetByte:
+ case IntrinsicHelper::StaticFieldGetChar:
+ case IntrinsicHelper::StaticFieldGetShort: {
+ return ExpandToRuntime(runtime_support::Get32Static, call_inst);
+ }
+ case IntrinsicHelper::StaticFieldGetWide: {
+ return ExpandToRuntime(runtime_support::Get64Static, call_inst);
+ }
+ case IntrinsicHelper::StaticFieldGetObject: {
+ return ExpandToRuntime(runtime_support::GetObjectStatic, call_inst);
+ }
+ case IntrinsicHelper::StaticFieldGetFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kInt);
+ }
+ case IntrinsicHelper::StaticFieldGetWideFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kLong);
+ }
+ case IntrinsicHelper::StaticFieldGetObjectFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kObject);
+ }
+ case IntrinsicHelper::StaticFieldGetBooleanFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kBoolean);
+ }
+ case IntrinsicHelper::StaticFieldGetByteFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kByte);
+ }
+ case IntrinsicHelper::StaticFieldGetCharFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kChar);
+ }
+ case IntrinsicHelper::StaticFieldGetShortFast: {
+ return Expand_SGetFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ kShort);
+ }
+ case IntrinsicHelper::StaticFieldPut:
+ case IntrinsicHelper::StaticFieldPutBoolean:
+ case IntrinsicHelper::StaticFieldPutByte:
+ case IntrinsicHelper::StaticFieldPutChar:
+ case IntrinsicHelper::StaticFieldPutShort: {
+ return ExpandToRuntime(runtime_support::Set32Static, call_inst);
+ }
+ case IntrinsicHelper::StaticFieldPutWide: {
+ return ExpandToRuntime(runtime_support::Set64Static, call_inst);
+ }
+ case IntrinsicHelper::StaticFieldPutObject: {
+ return ExpandToRuntime(runtime_support::SetObjectStatic, call_inst);
+ }
+ case IntrinsicHelper::StaticFieldPutFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kInt);
+ return NULL;
+ }
+ case IntrinsicHelper::StaticFieldPutWideFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kLong);
+ return NULL;
+ }
+ case IntrinsicHelper::StaticFieldPutObjectFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kObject);
+ return NULL;
+ }
+ case IntrinsicHelper::StaticFieldPutBooleanFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kBoolean);
+ return NULL;
+ }
+ case IntrinsicHelper::StaticFieldPutByteFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kByte);
+ return NULL;
+ }
+ case IntrinsicHelper::StaticFieldPutCharFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kChar);
+ return NULL;
+ }
+ case IntrinsicHelper::StaticFieldPutShortFast: {
+ Expand_SPutFast(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ call_inst.getArgOperand(2),
+ call_inst.getArgOperand(3),
+ kShort);
+ return NULL;
+ }
+ case IntrinsicHelper::LoadDeclaringClassSSB: {
+ return Expand_LoadDeclaringClassSSB(call_inst.getArgOperand(0));
+ }
+ case IntrinsicHelper::LoadClassSSBFromDexCache: {
+ return Expand_LoadClassSSBFromDexCache(call_inst.getArgOperand(0));
+ }
+ case IntrinsicHelper::InitializeAndLoadClassSSB: {
+ return ExpandToRuntime(runtime_support::InitializeStaticStorage, call_inst);
+ }
+
+ //==- High-level Array -------------------------------------------------==//
+ case IntrinsicHelper::HLArrayGet: {
+ return Expand_HLArrayGet(call_inst, kInt);
+ }
+ case IntrinsicHelper::HLArrayGetBoolean: {
+ return Expand_HLArrayGet(call_inst, kBoolean);
+ }
+ case IntrinsicHelper::HLArrayGetByte: {
+ return Expand_HLArrayGet(call_inst, kByte);
+ }
+ case IntrinsicHelper::HLArrayGetChar: {
+ return Expand_HLArrayGet(call_inst, kChar);
+ }
+ case IntrinsicHelper::HLArrayGetShort: {
+ return Expand_HLArrayGet(call_inst, kShort);
+ }
+ case IntrinsicHelper::HLArrayGetFloat: {
+ return Expand_HLArrayGet(call_inst, kFloat);
+ }
+ case IntrinsicHelper::HLArrayGetWide: {
+ return Expand_HLArrayGet(call_inst, kLong);
+ }
+ case IntrinsicHelper::HLArrayGetDouble: {
+ return Expand_HLArrayGet(call_inst, kDouble);
+ }
+ case IntrinsicHelper::HLArrayGetObject: {
+ return Expand_HLArrayGet(call_inst, kObject);
+ }
+ case IntrinsicHelper::HLArrayPut: {
+ Expand_HLArrayPut(call_inst, kInt);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutBoolean: {
+ Expand_HLArrayPut(call_inst, kBoolean);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutByte: {
+ Expand_HLArrayPut(call_inst, kByte);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutChar: {
+ Expand_HLArrayPut(call_inst, kChar);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutShort: {
+ Expand_HLArrayPut(call_inst, kShort);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutFloat: {
+ Expand_HLArrayPut(call_inst, kFloat);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutWide: {
+ Expand_HLArrayPut(call_inst, kLong);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutDouble: {
+ Expand_HLArrayPut(call_inst, kDouble);
+ return NULL;
+ }
+ case IntrinsicHelper::HLArrayPutObject: {
+ Expand_HLArrayPut(call_inst, kObject);
+ return NULL;
+ }
+
+ //==- High-level Instance ----------------------------------------------==//
+ case IntrinsicHelper::HLIGet: {
+ return Expand_HLIGet(call_inst, kInt);
+ }
+ case IntrinsicHelper::HLIGetBoolean: {
+ return Expand_HLIGet(call_inst, kBoolean);
+ }
+ case IntrinsicHelper::HLIGetByte: {
+ return Expand_HLIGet(call_inst, kByte);
+ }
+ case IntrinsicHelper::HLIGetChar: {
+ return Expand_HLIGet(call_inst, kChar);
+ }
+ case IntrinsicHelper::HLIGetShort: {
+ return Expand_HLIGet(call_inst, kShort);
+ }
+ case IntrinsicHelper::HLIGetFloat: {
+ return Expand_HLIGet(call_inst, kFloat);
+ }
+ case IntrinsicHelper::HLIGetWide: {
+ return Expand_HLIGet(call_inst, kLong);
+ }
+ case IntrinsicHelper::HLIGetDouble: {
+ return Expand_HLIGet(call_inst, kDouble);
+ }
+ case IntrinsicHelper::HLIGetObject: {
+ return Expand_HLIGet(call_inst, kObject);
+ }
+ case IntrinsicHelper::HLIPut: {
+ Expand_HLIPut(call_inst, kInt);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutBoolean: {
+ Expand_HLIPut(call_inst, kBoolean);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutByte: {
+ Expand_HLIPut(call_inst, kByte);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutChar: {
+ Expand_HLIPut(call_inst, kChar);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutShort: {
+ Expand_HLIPut(call_inst, kShort);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutFloat: {
+ Expand_HLIPut(call_inst, kFloat);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutWide: {
+ Expand_HLIPut(call_inst, kLong);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutDouble: {
+ Expand_HLIPut(call_inst, kDouble);
+ return NULL;
+ }
+ case IntrinsicHelper::HLIPutObject: {
+ Expand_HLIPut(call_inst, kObject);
+ return NULL;
+ }
+
+ //==- High-level Invoke ------------------------------------------------==//
+ case IntrinsicHelper::HLInvokeVoid:
+ case IntrinsicHelper::HLInvokeObj:
+ case IntrinsicHelper::HLInvokeInt:
+ case IntrinsicHelper::HLInvokeFloat:
+ case IntrinsicHelper::HLInvokeLong:
+ case IntrinsicHelper::HLInvokeDouble: {
+ return Expand_HLInvoke(call_inst);
+ }
+
+ //==- Invoke -----------------------------------------------------------==//
+ case IntrinsicHelper::FindStaticMethodWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::FindStaticMethodWithAccessCheck, call_inst);
+ }
+ case IntrinsicHelper::FindDirectMethodWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::FindDirectMethodWithAccessCheck, call_inst);
+ }
+ case IntrinsicHelper::FindVirtualMethodWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::FindVirtualMethodWithAccessCheck, call_inst);
+ }
+ case IntrinsicHelper::FindSuperMethodWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::FindSuperMethodWithAccessCheck, call_inst);
+ }
+ case IntrinsicHelper::FindInterfaceMethodWithAccessCheck: {
+ return ExpandToRuntime(runtime_support::FindInterfaceMethodWithAccessCheck, call_inst);
+ }
+ case IntrinsicHelper::GetSDCalleeMethodObjAddrFast: {
+ return Expand_GetSDCalleeMethodObjAddrFast(call_inst.getArgOperand(0));
+ }
+ case IntrinsicHelper::GetVirtualCalleeMethodObjAddrFast: {
+ return Expand_GetVirtualCalleeMethodObjAddrFast(
+ call_inst.getArgOperand(0), call_inst.getArgOperand(1));
+ }
+ case IntrinsicHelper::GetInterfaceCalleeMethodObjAddrFast: {
+ return ExpandToRuntime(runtime_support::FindInterfaceMethod, call_inst);
+ }
+ case IntrinsicHelper::InvokeRetVoid:
+ case IntrinsicHelper::InvokeRetBoolean:
+ case IntrinsicHelper::InvokeRetByte:
+ case IntrinsicHelper::InvokeRetChar:
+ case IntrinsicHelper::InvokeRetShort:
+ case IntrinsicHelper::InvokeRetInt:
+ case IntrinsicHelper::InvokeRetLong:
+ case IntrinsicHelper::InvokeRetFloat:
+ case IntrinsicHelper::InvokeRetDouble:
+ case IntrinsicHelper::InvokeRetObject: {
+ return Expand_Invoke(call_inst);
+ }
+
+ //==- Math -------------------------------------------------------------==//
+ case IntrinsicHelper::DivInt: {
+ return Expand_DivRem(call_inst, /* is_div */true, kInt);
+ }
+ case IntrinsicHelper::RemInt: {
+ return Expand_DivRem(call_inst, /* is_div */false, kInt);
+ }
+ case IntrinsicHelper::DivLong: {
+ return Expand_DivRem(call_inst, /* is_div */true, kLong);
+ }
+ case IntrinsicHelper::RemLong: {
+ return Expand_DivRem(call_inst, /* is_div */false, kLong);
+ }
+ case IntrinsicHelper::D2L: {
+ return ExpandToRuntime(runtime_support::art_d2l, call_inst);
+ }
+ case IntrinsicHelper::D2I: {
+ return ExpandToRuntime(runtime_support::art_d2i, call_inst);
+ }
+ case IntrinsicHelper::F2L: {
+ return ExpandToRuntime(runtime_support::art_f2l, call_inst);
+ }
+ case IntrinsicHelper::F2I: {
+ return ExpandToRuntime(runtime_support::art_f2i, call_inst);
+ }
+
+ //==- High-level Static ------------------------------------------------==//
+ case IntrinsicHelper::HLSget: {
+ return Expand_HLSget(call_inst, kInt);
+ }
+ case IntrinsicHelper::HLSgetBoolean: {
+ return Expand_HLSget(call_inst, kBoolean);
+ }
+ case IntrinsicHelper::HLSgetByte: {
+ return Expand_HLSget(call_inst, kByte);
+ }
+ case IntrinsicHelper::HLSgetChar: {
+ return Expand_HLSget(call_inst, kChar);
+ }
+ case IntrinsicHelper::HLSgetShort: {
+ return Expand_HLSget(call_inst, kShort);
+ }
+ case IntrinsicHelper::HLSgetFloat: {
+ return Expand_HLSget(call_inst, kFloat);
+ }
+ case IntrinsicHelper::HLSgetWide: {
+ return Expand_HLSget(call_inst, kLong);
+ }
+ case IntrinsicHelper::HLSgetDouble: {
+ return Expand_HLSget(call_inst, kDouble);
+ }
+ case IntrinsicHelper::HLSgetObject: {
+ return Expand_HLSget(call_inst, kObject);
+ }
+ case IntrinsicHelper::HLSput: {
+ Expand_HLSput(call_inst, kInt);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputBoolean: {
+ Expand_HLSput(call_inst, kBoolean);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputByte: {
+ Expand_HLSput(call_inst, kByte);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputChar: {
+ Expand_HLSput(call_inst, kChar);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputShort: {
+ Expand_HLSput(call_inst, kShort);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputFloat: {
+ Expand_HLSput(call_inst, kFloat);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputWide: {
+ Expand_HLSput(call_inst, kLong);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputDouble: {
+ Expand_HLSput(call_inst, kDouble);
+ return NULL;
+ }
+ case IntrinsicHelper::HLSputObject: {
+ Expand_HLSput(call_inst, kObject);
+ return NULL;
+ }
+
+ //==- High-level Monitor -----------------------------------------------==//
+ case IntrinsicHelper::MonitorEnter: {
+ Expand_MonitorEnter(call_inst);
+ return NULL;
+ }
+ case IntrinsicHelper::MonitorExit: {
+ Expand_MonitorExit(call_inst);
+ return NULL;
+ }
+
+ //==- Shadow Frame -----------------------------------------------------==//
+ case IntrinsicHelper::AllocaShadowFrame: {
+ Expand_AllocaShadowFrame(call_inst.getArgOperand(0));
+ return NULL;
+ }
+ case IntrinsicHelper::SetVReg: {
+ Expand_SetVReg(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1));
+ return NULL;
+ }
+ case IntrinsicHelper::PopShadowFrame: {
+ Expand_PopShadowFrame();
+ return NULL;
+ }
+ case IntrinsicHelper::UpdateDexPC: {
+ Expand_UpdateDexPC(call_inst.getArgOperand(0));
+ return NULL;
+ }
+
+ //==- Comparison -------------------------------------------------------==//
+ case IntrinsicHelper::CmplFloat:
+ case IntrinsicHelper::CmplDouble: {
+ return Expand_FPCompare(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ false);
+ }
+ case IntrinsicHelper::CmpgFloat:
+ case IntrinsicHelper::CmpgDouble: {
+ return Expand_FPCompare(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ true);
+ }
+ case IntrinsicHelper::CmpLong: {
+ return Expand_LongCompare(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1));
+ }
+
+ //==- Const ------------------------------------------------------------==//
+ case IntrinsicHelper::ConstInt:
+ case IntrinsicHelper::ConstLong: {
+ return call_inst.getArgOperand(0);
+ }
+ case IntrinsicHelper::ConstFloat: {
+ return irb_.CreateBitCast(call_inst.getArgOperand(0),
+ irb_.getJFloatTy());
+ }
+ case IntrinsicHelper::ConstDouble: {
+ return irb_.CreateBitCast(call_inst.getArgOperand(0),
+ irb_.getJDoubleTy());
+ }
+ case IntrinsicHelper::ConstObj: {
+ CHECK(LV2UInt(call_inst.getArgOperand(0)) == 0);
+ return irb_.getJNull();
+ }
+
+ //==- Method Info ------------------------------------------------------==//
+ case IntrinsicHelper::MethodInfo: {
+ // Nothing to be done, because MethodInfo carries optional hints that are
+ // not needed by the portable path.
+ return NULL;
+ }
+
+ //==- Copy -------------------------------------------------------------==//
+ case IntrinsicHelper::CopyInt:
+ case IntrinsicHelper::CopyFloat:
+ case IntrinsicHelper::CopyLong:
+ case IntrinsicHelper::CopyDouble:
+ case IntrinsicHelper::CopyObj: {
+ return call_inst.getArgOperand(0);
+ }
+
+ //==- Shift ------------------------------------------------------------==//
+ case IntrinsicHelper::SHLLong: {
+ return Expand_IntegerShift(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kIntegerSHL, kLong);
+ }
+ case IntrinsicHelper::SHRLong: {
+ return Expand_IntegerShift(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kIntegerSHR, kLong);
+ }
+ case IntrinsicHelper::USHRLong: {
+ return Expand_IntegerShift(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kIntegerUSHR, kLong);
+ }
+ case IntrinsicHelper::SHLInt: {
+ return Expand_IntegerShift(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kIntegerSHL, kInt);
+ }
+ case IntrinsicHelper::SHRInt: {
+ return Expand_IntegerShift(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kIntegerSHR, kInt);
+ }
+ case IntrinsicHelper::USHRInt: {
+ return Expand_IntegerShift(call_inst.getArgOperand(0),
+ call_inst.getArgOperand(1),
+ kIntegerUSHR, kInt);
+ }
+
+ //==- Conversion -------------------------------------------------------==//
+ case IntrinsicHelper::IntToChar: {
+ return irb_.CreateZExt(irb_.CreateTrunc(call_inst.getArgOperand(0), irb_.getJCharTy()),
+ irb_.getJIntTy());
+ }
+ case IntrinsicHelper::IntToShort: {
+ return irb_.CreateSExt(irb_.CreateTrunc(call_inst.getArgOperand(0), irb_.getJShortTy()),
+ irb_.getJIntTy());
+ }
+ case IntrinsicHelper::IntToByte: {
+ return irb_.CreateSExt(irb_.CreateTrunc(call_inst.getArgOperand(0), irb_.getJByteTy()),
+ irb_.getJIntTy());
+ }
+
+ //==- Exception --------------------------------------------------------==//
+ case IntrinsicHelper::CatchTargets: {
+ UpdatePhiInstruction(current_bb_, irb_.GetInsertBlock());
+ llvm::SwitchInst* si = llvm::dyn_cast<llvm::SwitchInst>(call_inst.getNextNode());
+ CHECK(si != NULL);
+ irb_.CreateBr(si->getDefaultDest());
+ si->eraseFromParent();
+ return call_inst.getArgOperand(0);
+ }
+
+ //==- Constructor barrier-----------------------------------------------==//
+ case IntrinsicHelper::ConstructorBarrier: {
+ irb_.CreateMemoryBarrier(art::kStoreStore);
+ return NULL;
+ }
+
+ //==- Unknown Cases ----------------------------------------------------==//
+ case IntrinsicHelper::MaxIntrinsicId:
+ case IntrinsicHelper::UnknownId:
+ //default:
+ // NOTE: "default" is intentionally commented so that C/C++ compiler will
+ // give some warning on unmatched cases.
+ // NOTE: We should not implement these cases.
+ break;
+ }
+ UNIMPLEMENTED(FATAL) << "Unexpected GBC intrinsic: " << static_cast<int>(intr_id);
+ return NULL;
+}
+
+} // anonymous namespace
+
+namespace art {
+namespace llvm {
+
+::llvm::FunctionPass*
+CreateGBCExpanderPass(const IntrinsicHelper& intrinsic_helper, IRBuilder& irb,
+ CompilerDriver* driver, DexCompilationUnit* dex_compilation_unit) {
+ return new GBCExpanderPass(intrinsic_helper, irb, driver, dex_compilation_unit);
+}
+
+} // namespace llvm
+} // namespace art