Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 1999, 2010, 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.

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  */

 #ifndef SHARE_VM_SHARK_SHARKBUILDER_HPP

 #define SHARE_VM_SHARK_SHARKBUILDER_HPP

 #include "ci/ciType.hpp"

 #include "memory/barrierSet.hpp"

 #include "memory/cardTableModRefBS.hpp"

 #include "shark/llvmHeaders.hpp"

 #include "shark/llvmValue.hpp"

 #include "shark/sharkCodeBuffer.hpp"

 #include "shark/sharkEntry.hpp"

 #include "shark/sharkType.hpp"

 #include "shark/sharkValue.hpp"

 #include "utilities/debug.hpp"

 #include "utilities/sizes.hpp"

 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;

 };

 #endif // SHARE_VM_SHARK_SHARKBUILDER_HPP