--- /dev/null 2010-06-22 09:23:59.198002222 +0100 +++ new/hotspot/src/share/vm/shark/sharkBuilder.hpp 2010-06-22 09:53:08.000000000 +0100 @@ -0,0 +1,209 @@ +/* + * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. + * Copyright 2008, 2009, 2010 Red Hat, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +class SharkBuilder : public llvm::IRBuilder<> { + friend class SharkCompileInvariants; + + public: + SharkBuilder(SharkCodeBuffer* code_buffer); + + // The code buffer we are building into. + private: + SharkCodeBuffer* _code_buffer; + + protected: + SharkCodeBuffer* code_buffer() const { + return _code_buffer; + } + + // Helpers for accessing structures. + public: + llvm::Value* CreateAddressOfStructEntry(llvm::Value* base, + ByteSize offset, + const llvm::Type* type, + const char *name = ""); + llvm::LoadInst* CreateValueOfStructEntry(llvm::Value* base, + ByteSize offset, + const llvm::Type* type, + const char *name = ""); + + // Helpers for accessing arrays. + public: + llvm::LoadInst* CreateArrayLength(llvm::Value* arrayoop); + llvm::Value* CreateArrayAddress(llvm::Value* arrayoop, + const llvm::Type* element_type, + int element_bytes, + ByteSize base_offset, + llvm::Value* index, + const char* name = ""); + llvm::Value* CreateArrayAddress(llvm::Value* arrayoop, + BasicType basic_type, + ByteSize base_offset, + llvm::Value* index, + const char* name = ""); + llvm::Value* CreateArrayAddress(llvm::Value* arrayoop, + BasicType basic_type, + llvm::Value* index, + const char* name = ""); + + // Helpers for creating intrinsics and external functions. + private: + static const llvm::Type* make_type(char type, bool void_ok); + static const llvm::FunctionType* make_ftype(const char* params, + const char* ret); + llvm::Value* make_function(const char* name, + const char* params, + const char* ret); + llvm::Value* make_function(address func, + const char* params, + const char* ret); + + // Intrinsics and external functions, part 1: VM calls. + // These are functions declared with JRT_ENTRY and JRT_EXIT, + // macros which flip the thread from _thread_in_Java to + // _thread_in_vm and back. VM calls always safepoint, and can + // therefore throw exceptions. VM calls require of setup and + // teardown, and must be called with SharkTopLevelBlock::call_vm. + public: + llvm::Value* find_exception_handler(); + llvm::Value* monitorenter(); + llvm::Value* monitorexit(); + llvm::Value* new_instance(); + llvm::Value* newarray(); + llvm::Value* anewarray(); + llvm::Value* multianewarray(); + llvm::Value* register_finalizer(); + llvm::Value* safepoint(); + llvm::Value* throw_ArithmeticException(); + llvm::Value* throw_ArrayIndexOutOfBoundsException(); + llvm::Value* throw_ClassCastException(); + llvm::Value* throw_NullPointerException(); + + // Intrinsics and external functions, part 2: High-level non-VM calls. + // These are called like normal functions. The stack is not set + // up for walking so they must not safepoint or throw exceptions, + // or call anything that might. + public: + llvm::Value* f2i(); + llvm::Value* f2l(); + llvm::Value* d2i(); + llvm::Value* d2l(); + llvm::Value* is_subtype_of(); + llvm::Value* current_time_millis(); + llvm::Value* sin(); + llvm::Value* cos(); + llvm::Value* tan(); + llvm::Value* atan2(); + llvm::Value* sqrt(); + llvm::Value* log(); + llvm::Value* log10(); + llvm::Value* pow(); + llvm::Value* exp(); + llvm::Value* fabs(); + llvm::Value* unsafe_field_offset_to_byte_offset(); + llvm::Value* osr_migration_end(); + + // Intrinsics and external functions, part 3: semi-VM calls. + // These are special cases that do VM call stuff but are invoked + // as though they were normal calls. This is acceptable so long + // as the method that calls them returns to its immediately that + // the semi VM call returns. + public: + llvm::Value* throw_StackOverflowError(); + llvm::Value* uncommon_trap(); + llvm::Value* deoptimized_entry_point(); + + // Intrinsics and external functions, part 4: Native-Java transition. + // This is a special case in that it is invoked during a thread + // state transition. The stack must be set up for walking, and it + // may throw exceptions, but the state is _thread_in_native_trans. + public: + llvm::Value* check_special_condition_for_native_trans(); + + // Intrinsics and external functions, part 5: Low-level non-VM calls. + // These have the same caveats as the high-level non-VM calls + // above. They are not accessed directly; rather, you should + // access them via the various Create* methods below. + private: + llvm::Value* cmpxchg_int(); + llvm::Value* cmpxchg_ptr(); + llvm::Value* frame_address(); + llvm::Value* memory_barrier(); + llvm::Value* memset(); + llvm::Value* unimplemented(); + llvm::Value* should_not_reach_here(); + llvm::Value* dump(); + + // Public interface to low-level non-VM calls. + public: + llvm::CallInst* CreateCmpxchgInt(llvm::Value* exchange_value, + llvm::Value* dst, + llvm::Value* compare_value); + llvm::CallInst* CreateCmpxchgPtr(llvm::Value* exchange_value, + llvm::Value* dst, + llvm::Value* compare_value); + llvm::CallInst* CreateGetFrameAddress(); + llvm::CallInst* CreateMemoryBarrier(int flags); + llvm::CallInst* CreateMemset(llvm::Value* dst, + llvm::Value* value, + llvm::Value* len, + llvm::Value* align); + llvm::CallInst* CreateUnimplemented(const char* file, int line); + llvm::CallInst* CreateShouldNotReachHere(const char* file, int line); + NOT_PRODUCT(llvm::CallInst* CreateDump(llvm::Value* value)); + + // Flags for CreateMemoryBarrier. + public: + enum BarrierFlags { + BARRIER_LOADLOAD = 1, + BARRIER_LOADSTORE = 2, + BARRIER_STORELOAD = 4, + BARRIER_STORESTORE = 8 + }; + + // HotSpot memory barriers + public: + void CreateUpdateBarrierSet(BarrierSet* bs, llvm::Value* field); + + // Helpers for accessing the code buffer. + public: + llvm::Value* code_buffer_address(int offset); + llvm::Value* CreateInlineOop(jobject object, const char* name = ""); + llvm::Value* CreateInlineOop(ciObject* object, const char* name = "") { + return CreateInlineOop(object->constant_encoding(), name); + } + llvm::Value* CreateInlineData(void* data, + size_t size, + const llvm::Type* type, + const char* name = ""); + + // Helpers for creating basic blocks. + // NB don't use unless SharkFunction::CreateBlock is unavailable. + // XXX these are hacky and should be removed. + public: + llvm::BasicBlock* GetBlockInsertionPoint() const; + llvm::BasicBlock* CreateBlock(llvm::BasicBlock* ip, + const char* name="") const; +};