jdk8-mips64-public/hotspot: src/share/vm/shark/sharkCompiler.cpp@e863062e521d (annotated)

src/share/vm/shark/sharkCompiler.cpp@e863062e521d (annotated)

src/share/vm/shark/sharkCompiler.cpp

Mon, 04 Apr 2011 03:02:00 -0700

author: twisti
date: Mon, 04 Apr 2011 03:02:00 -0700
changeset 2729: e863062e521d
parent 2314: f95d63e2154a
child 4314: 2cd5e15048e6
permissions: -rw-r--r--

7032458: Zero and Shark fixes
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

 /*
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2008, 2009, 2010, 2011 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.
  *
  */
 #include "precompiled.hpp"
 #include "ci/ciEnv.hpp"
 #include "ci/ciMethod.hpp"
 #include "code/debugInfoRec.hpp"
 #include "code/dependencies.hpp"
 #include "code/exceptionHandlerTable.hpp"
 #include "code/oopRecorder.hpp"
 #include "compiler/abstractCompiler.hpp"
 #include "compiler/oopMap.hpp"
 #include "shark/llvmHeaders.hpp"
 #include "shark/sharkBuilder.hpp"
 #include "shark/sharkCodeBuffer.hpp"
 #include "shark/sharkCompiler.hpp"
 #include "shark/sharkContext.hpp"
 #include "shark/sharkEntry.hpp"
 #include "shark/sharkFunction.hpp"
 #include "shark/sharkMemoryManager.hpp"
 #include "shark/sharkNativeWrapper.hpp"
 #include "shark/shark_globals.hpp"
 #include "utilities/debug.hpp"
 #include <fnmatch.h>
 using namespace llvm;
 #if SHARK_LLVM_VERSION >= 27
 namespace {
   cl::opt<std::string>
   MCPU("mcpu");
   cl::list<std::string>
   MAttrs("mattr",
          cl::CommaSeparated);
 }
 #endif
 SharkCompiler::SharkCompiler()
   : AbstractCompiler() {
   // Create the lock to protect the memory manager and execution engine
   _execution_engine_lock = new Monitor(Mutex::leaf, "SharkExecutionEngineLock");
   MutexLocker locker(execution_engine_lock());
   // Make LLVM safe for multithreading
   if (!llvm_start_multithreaded())
     fatal("llvm_start_multithreaded() failed");
   // Initialize the native target
   InitializeNativeTarget();
   // Create the two contexts which we'll use
   _normal_context = new SharkContext("normal");
   _native_context = new SharkContext("native");
   // Create the memory manager
   _memory_manager = new SharkMemoryManager();
 #if SHARK_LLVM_VERSION >= 27
   // Finetune LLVM for the current host CPU.
   StringMap<bool> Features;
   bool gotCpuFeatures = llvm::sys::getHostCPUFeatures(Features);
   std::string cpu("-mcpu=" + llvm::sys::getHostCPUName());
   std::vector<const char*> args;
   args.push_back(""); // program name
   args.push_back(cpu.c_str());
   std::string mattr("-mattr=");
   if(gotCpuFeatures){
     for(StringMap<bool>::iterator I = Features.begin(),
       E = Features.end(); I != E; ++I){
       if(I->second){
         std::string attr(I->first());
         mattr+="+"+attr+",";
       }
     }
     args.push_back(mattr.c_str());
   }
   args.push_back(0);  // terminator
   cl::ParseCommandLineOptions(args.size() - 1, (char **) &args[0]);
   // Create the JIT
   std::string ErrorMsg;
   EngineBuilder builder(_normal_context->module());
   builder.setMCPU(MCPU);
   builder.setMAttrs(MAttrs);
   builder.setJITMemoryManager(memory_manager());
   builder.setEngineKind(EngineKind::JIT);
   builder.setErrorStr(&ErrorMsg);
   _execution_engine = builder.create();
   if (!execution_engine()) {
     if (!ErrorMsg.empty())
       printf("Error while creating Shark JIT: %s\n",ErrorMsg.c_str());
     else
       printf("Unknown error while creating Shark JIT\n");
     exit(1);
   }
   execution_engine()->addModule(
     _native_context->module());
 #else
   _execution_engine = ExecutionEngine::createJIT(
     _normal_context->module_provider(),
     NULL, memory_manager(), CodeGenOpt::Default);
   execution_engine()->addModuleProvider(
     _native_context->module_provider());
 #endif
   // All done
   mark_initialized();
 }
 void SharkCompiler::initialize() {
   ShouldNotCallThis();
 }
 void SharkCompiler::compile_method(ciEnv*    env,
                                    ciMethod* target,
                                    int       entry_bci) {
   assert(is_initialized(), "should be");
   ResourceMark rm;
   const char *name = methodname(
     target->holder()->name()->as_utf8(), target->name()->as_utf8());
   // Do the typeflow analysis
   ciTypeFlow *flow;
   if (entry_bci == InvocationEntryBci)
     flow = target->get_flow_analysis();
   else
     flow = target->get_osr_flow_analysis(entry_bci);
   if (flow->failing())
     return;
   if (SharkPrintTypeflowOf != NULL) {
     if (!fnmatch(SharkPrintTypeflowOf, name, 0))
       flow->print_on(tty);
   }
   // Create the recorders
   Arena arena;
   env->set_oop_recorder(new OopRecorder(&arena));
   OopMapSet oopmaps;
   env->set_debug_info(new DebugInformationRecorder(env->oop_recorder()));
   env->debug_info()->set_oopmaps(&oopmaps);
   env->set_dependencies(new Dependencies(env));
   // Create the code buffer and builder
   CodeBuffer hscb("Shark", 256 * K, 64 * K);
   hscb.initialize_oop_recorder(env->oop_recorder());
   MacroAssembler *masm = new MacroAssembler(&hscb);
   SharkCodeBuffer cb(masm);
   SharkBuilder builder(&cb);
   // Emit the entry point
   SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry));
   // Build the LLVM IR for the method
   Function *function = SharkFunction::build(env, &builder, flow, name);
   // Generate native code.  It's unpleasant that we have to drop into
   // the VM to do this -- it blocks safepoints -- but I can't see any
   // other way to handle the locking.
   {
     ThreadInVMfromNative tiv(JavaThread::current());
     generate_native_code(entry, function, name);
   }
   // Install the method into the VM
   CodeOffsets offsets;
   offsets.set_value(CodeOffsets::Deopt, 0);
   offsets.set_value(CodeOffsets::Exceptions, 0);
   offsets.set_value(CodeOffsets::Verified_Entry,
                     target->is_static() ? 0 : wordSize);
   ExceptionHandlerTable handler_table;
   ImplicitExceptionTable inc_table;
   env->register_method(target,
                        entry_bci,
                        &offsets,
 ,
                        &hscb,
 ,
                        &oopmaps,
                        &handler_table,
                        &inc_table,
                        this,
                        env->comp_level(),
                        false,
                        false);
 }
 nmethod* SharkCompiler::generate_native_wrapper(MacroAssembler* masm,
                                                 methodHandle    target,
                                                 int             compile_id,
                                                 BasicType*      arg_types,
                                                 BasicType       return_type) {
   assert(is_initialized(), "should be");
   ResourceMark rm;
   const char *name = methodname(
     target->klass_name()->as_utf8(), target->name()->as_utf8());
   // Create the code buffer and builder
   SharkCodeBuffer cb(masm);
   SharkBuilder builder(&cb);
   // Emit the entry point
   SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry));
   // Build the LLVM IR for the method
   SharkNativeWrapper *wrapper = SharkNativeWrapper::build(
     &builder, target, name, arg_types, return_type);
   // Generate native code
   generate_native_code(entry, wrapper->function(), name);
   // Return the nmethod for installation in the VM
   return nmethod::new_native_nmethod(target,
                                      compile_id,
                                      masm->code(),
 ,
 ,
                                      wrapper->frame_size(),
                                      wrapper->receiver_offset(),
                                      wrapper->lock_offset(),
                                      wrapper->oop_maps());
 }
 void SharkCompiler::generate_native_code(SharkEntry* entry,
                                          Function*   function,
                                          const char* name) {
   // Print the LLVM bitcode, if requested
   if (SharkPrintBitcodeOf != NULL) {
     if (!fnmatch(SharkPrintBitcodeOf, name, 0))
       function->dump();
   }
   // Compile to native code
   address code = NULL;
   context()->add_function(function);
   {
     MutexLocker locker(execution_engine_lock());
     free_queued_methods();
     if (SharkPrintAsmOf != NULL) {
 #if SHARK_LLVM_VERSION >= 27
 #ifndef NDEBUG
       if (!fnmatch(SharkPrintAsmOf, name, 0)) {
         llvm::SetCurrentDebugType(X86_ONLY("x86-emitter") NOT_X86("jit"));
         llvm::DebugFlag = true;
       }
       else {
         llvm::SetCurrentDebugType("");
         llvm::DebugFlag = false;
       }
 #endif // !NDEBUG
 #else
       // NB you need to patch LLVM with http://tinyurl.com/yf3baln for this
       std::vector<const char*> args;
       args.push_back(""); // program name
       if (!fnmatch(SharkPrintAsmOf, name, 0))
         args.push_back("-debug-only=x86-emitter");
       else
         args.push_back("-debug-only=none");
       args.push_back(0);  // terminator
       cl::ParseCommandLineOptions(args.size() - 1, (char **) &args[0]);
 #endif // SHARK_LLVM_VERSION
     }
     memory_manager()->set_entry_for_function(function, entry);
     code = (address) execution_engine()->getPointerToFunction(function);
   }
   entry->set_entry_point(code);
   entry->set_function(function);
   entry->set_context(context());
   address code_start = entry->code_start();
   address code_limit = entry->code_limit();
   // Register generated code for profiling, etc
   if (JvmtiExport::should_post_dynamic_code_generated())
     JvmtiExport::post_dynamic_code_generated(name, code_start, code_limit);
   // Print debug information, if requested
   if (SharkTraceInstalls) {
     tty->print_cr(
       " [%p-%p): %s (%d bytes code)",
       code_start, code_limit, name, code_limit - code_start);
   }
 }
 void SharkCompiler::free_compiled_method(address code) {
   // This method may only be called when the VM is at a safepoint.
   // All _thread_in_vm threads will be waiting for the safepoint to
   // finish with the exception of the VM thread, so we can consider
   // ourself the owner of the execution engine lock even though we
   // can't actually acquire it at this time.
   assert(Thread::current()->is_VM_thread(), "must be called by VM thread");
   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
   SharkEntry *entry = (SharkEntry *) code;
   entry->context()->push_to_free_queue(entry->function());
 }
 void SharkCompiler::free_queued_methods() {
   // The free queue is protected by the execution engine lock
   assert(execution_engine_lock()->owned_by_self(), "should be");
   while (true) {
     Function *function = context()->pop_from_free_queue();
     if (function == NULL)
       break;
     execution_engine()->freeMachineCodeForFunction(function);
     function->eraseFromParent();
   }
 }
 const char* SharkCompiler::methodname(const char* klass, const char* method) {
   char *buf = NEW_RESOURCE_ARRAY(char, strlen(klass) + 2 + strlen(method) + 1);
   char *dst = buf;
   for (const char *c = klass; *c; c++) {
     if (*c == '/')
       *(dst++) = '.';
     else
       *(dst++) = *c;
   }
   *(dst++) = ':';
   *(dst++) = ':';
   for (const char *c = method; *c; c++) {
     *(dst++) = *c;
   }
   *(dst++) = '\0';
   return buf;
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/shark/sharkCompiler.cpp@e863062e521d (annotated)

src/share/vm/shark/sharkCompiler.cpp