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Diffstat (limited to 'compiler/llvm/runtime_support_builder.cc')
| -rw-r--r-- | compiler/llvm/runtime_support_builder.cc | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/compiler/llvm/runtime_support_builder.cc b/compiler/llvm/runtime_support_builder.cc deleted file mode 100644 index c825fbf190..0000000000 --- a/compiler/llvm/runtime_support_builder.cc +++ /dev/null @@ -1,202 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "runtime_support_builder.h" - -#include "gc/accounting/card_table.h" -#include "ir_builder.h" -#include "monitor.h" -#include "mirror/object.h" -#include "runtime_support_llvm_func_list.h" -#include "thread.h" - -#include <llvm/IR/DerivedTypes.h> -#include <llvm/IR/Function.h> -#include <llvm/IR/Module.h> -#include <llvm/IR/Type.h> - -using ::llvm::BasicBlock; -using ::llvm::CallInst; -using ::llvm::Function; -using ::llvm::Value; - -namespace art { -namespace llvm { - -RuntimeSupportBuilder::RuntimeSupportBuilder(::llvm::LLVMContext& context, - ::llvm::Module& module, - IRBuilder& irb) - : context_(context), module_(module), irb_(irb) { - memset(target_runtime_support_func_, 0, sizeof(target_runtime_support_func_)); -#define GET_RUNTIME_SUPPORT_FUNC_DECL(ID, NAME) \ - do { \ - ::llvm::Function* fn = module_.getFunction(#NAME); \ - DCHECK(fn != NULL) << "Function not found: " << #NAME; \ - runtime_support_func_decls_[runtime_support::ID] = fn; \ - } while (0); - - RUNTIME_SUPPORT_FUNC_LIST(GET_RUNTIME_SUPPORT_FUNC_DECL) -} - - -/* Thread */ - -::llvm::Value* RuntimeSupportBuilder::EmitGetCurrentThread() { - Function* func = GetRuntimeSupportFunction(runtime_support::GetCurrentThread); - CallInst* call_inst = irb_.CreateCall(func); - call_inst->setOnlyReadsMemory(); - irb_.SetTBAA(call_inst, kTBAAConstJObject); - return call_inst; -} - -::llvm::Value* RuntimeSupportBuilder::EmitLoadFromThreadOffset(int64_t offset, ::llvm::Type* type, - TBAASpecialType s_ty) { - Value* thread = EmitGetCurrentThread(); - return irb_.LoadFromObjectOffset(thread, offset, type, s_ty); -} - -void RuntimeSupportBuilder::EmitStoreToThreadOffset(int64_t offset, ::llvm::Value* value, - TBAASpecialType s_ty) { - Value* thread = EmitGetCurrentThread(); - irb_.StoreToObjectOffset(thread, offset, value, s_ty); -} - -::llvm::Value* RuntimeSupportBuilder::EmitSetCurrentThread(::llvm::Value* thread) { - Function* func = GetRuntimeSupportFunction(runtime_support::SetCurrentThread); - return irb_.CreateCall(func, thread); -} - - -/* ShadowFrame */ - -::llvm::Value* RuntimeSupportBuilder::EmitPushShadowFrame(::llvm::Value* new_shadow_frame, - ::llvm::Value* method, - uint32_t num_vregs) { - Value* old_shadow_frame = EmitLoadFromThreadOffset(Thread::TopShadowFrameOffset().Int32Value(), - irb_.getArtFrameTy()->getPointerTo(), - kTBAARuntimeInfo); - EmitStoreToThreadOffset(Thread::TopShadowFrameOffset().Int32Value(), - new_shadow_frame, - kTBAARuntimeInfo); - - // Store the method pointer - irb_.StoreToObjectOffset(new_shadow_frame, - ShadowFrame::MethodOffset(), - method, - kTBAAShadowFrame); - - // Store the number of vregs - irb_.StoreToObjectOffset(new_shadow_frame, - ShadowFrame::NumberOfVRegsOffset(), - irb_.getInt32(num_vregs), - kTBAAShadowFrame); - - // Store the link to previous shadow frame - irb_.StoreToObjectOffset(new_shadow_frame, - ShadowFrame::LinkOffset(), - old_shadow_frame, - kTBAAShadowFrame); - - return old_shadow_frame; -} - -::llvm::Value* -RuntimeSupportBuilder::EmitPushShadowFrameNoInline(::llvm::Value* new_shadow_frame, - ::llvm::Value* method, - uint32_t num_vregs) { - Function* func = GetRuntimeSupportFunction(runtime_support::PushShadowFrame); - ::llvm::CallInst* call_inst = - irb_.CreateCall4(func, - EmitGetCurrentThread(), - new_shadow_frame, - method, - irb_.getInt32(num_vregs)); - irb_.SetTBAA(call_inst, kTBAARuntimeInfo); - return call_inst; -} - -void RuntimeSupportBuilder::EmitPopShadowFrame(::llvm::Value* old_shadow_frame) { - // Store old shadow frame to TopShadowFrame - EmitStoreToThreadOffset(Thread::TopShadowFrameOffset().Int32Value(), - old_shadow_frame, - kTBAARuntimeInfo); -} - - -/* Exception */ - -::llvm::Value* RuntimeSupportBuilder::EmitGetAndClearException() { - Function* slow_func = GetRuntimeSupportFunction(runtime_support::GetAndClearException); - return irb_.CreateCall(slow_func, EmitGetCurrentThread()); -} - -::llvm::Value* RuntimeSupportBuilder::EmitIsExceptionPending() { - Value* exception = EmitLoadFromThreadOffset(Thread::ExceptionOffset().Int32Value(), - irb_.getJObjectTy(), - kTBAARuntimeInfo); - // If exception not null - return irb_.CreateIsNotNull(exception); -} - - -/* Suspend */ - -void RuntimeSupportBuilder::EmitTestSuspend() { - Function* slow_func = GetRuntimeSupportFunction(runtime_support::TestSuspend); - CallInst* call_inst = irb_.CreateCall(slow_func, EmitGetCurrentThread()); - irb_.SetTBAA(call_inst, kTBAAJRuntime); -} - - -/* Monitor */ - -void RuntimeSupportBuilder::EmitLockObject(::llvm::Value* object) { - Function* slow_func = GetRuntimeSupportFunction(runtime_support::LockObject); - irb_.CreateCall2(slow_func, object, EmitGetCurrentThread()); -} - -void RuntimeSupportBuilder::EmitUnlockObject(::llvm::Value* object) { - Function* slow_func = GetRuntimeSupportFunction(runtime_support::UnlockObject); - irb_.CreateCall2(slow_func, object, EmitGetCurrentThread()); -} - - -void RuntimeSupportBuilder::EmitMarkGCCard(::llvm::Value* value, ::llvm::Value* target_addr) { - Function* parent_func = irb_.GetInsertBlock()->getParent(); - BasicBlock* bb_mark_gc_card = BasicBlock::Create(context_, "mark_gc_card", parent_func); - BasicBlock* bb_cont = BasicBlock::Create(context_, "mark_gc_card_cont", parent_func); - - ::llvm::Value* not_null = irb_.CreateIsNotNull(value); - irb_.CreateCondBr(not_null, bb_mark_gc_card, bb_cont); - - irb_.SetInsertPoint(bb_mark_gc_card); - Value* card_table = EmitLoadFromThreadOffset(Thread::CardTableOffset().Int32Value(), - irb_.getInt8Ty()->getPointerTo(), - kTBAAConstJObject); - Value* target_addr_int = irb_.CreatePtrToInt(target_addr, irb_.getPtrEquivIntTy()); - Value* card_no = irb_.CreateLShr(target_addr_int, - irb_.getPtrEquivInt(gc::accounting::CardTable::kCardShift)); - Value* card_table_entry = irb_.CreateGEP(card_table, card_no); - irb_.CreateStore(irb_.getInt8(gc::accounting::CardTable::kCardDirty), card_table_entry, - kTBAARuntimeInfo); - irb_.CreateBr(bb_cont); - - irb_.SetInsertPoint(bb_cont); -} - - -} // namespace llvm -} // namespace art |