src/share/vm/c1/c1_Compiler.cpp
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*** old/src/share/vm/c1/c1_Compiler.cpp	Wed Oct  9 06:56:39 2013
--- new/src/share/vm/c1/c1_Compiler.cpp	Wed Oct  9 06:56:39 2013

*** 40,120 **** --- 40,104 ---- #include "prims/nativeLookup.hpp" #include "runtime/arguments.hpp" #include "runtime/interfaceSupport.hpp" #include "runtime/sharedRuntime.hpp" volatile int Compiler::_runtimes = uninitialized; Compiler::Compiler() { } Compiler::~Compiler() { Unimplemented(); } + Compiler::Compiler () {} ! void Compiler::initialize_all() { ! void Compiler::init_c1_runtime() { BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); Arena* arena = new (mtCompiler) Arena(); Runtime1::initialize(buffer_blob); FrameMap::initialize(); // initialize data structures ValueType::initialize(arena); // Instruction::initialize(); // BlockBegin::initialize(); GraphBuilder::initialize(); // note: to use more than one instance of LinearScan at a time this function call has to // be moved somewhere outside of this constructor: Interval::initialize(arena); } void Compiler::initialize() { if (_runtimes != initialized) { ! initialize_runtimes( initialize_all, &_runtimes); + // Buffer blob must be allocated per C1 compiler thread at startup ! BufferBlob* buffer_blob = init_buffer_blob(); + + if (should_perform_init()) { + if (buffer_blob == NULL) { + // When we come here we are in state 'initializing'; entire C1 compilation + // can be shut down. + set_state(failed); + } else { + init_c1_runtime(); + set_state(initialized); + } } mark_initialized(); } BufferBlob* Compiler::get_buffer_blob(ciEnv* env) { + BufferBlob* Compiler::init_buffer_blob() { // Allocate buffer blob once at startup since allocation for each // compilation seems to be too expensive (at least on Intel win32). ! BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); if (buffer_blob != NULL) { return buffer_blob; } ! assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once"); // setup CodeBuffer. Preallocate a BufferBlob of size // NMethodSizeLimit plus some extra space for constants. int code_buffer_size = Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size(); buffer_blob = BufferBlob::create("Compiler1 temporary CodeBuffer", code_buffer_size); if (buffer_blob == NULL) { CompileBroker::handle_full_code_cache(); env->record_failure("CodeCache is full"); } else { + BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size); + if (buffer_blob != NULL) { CompilerThread::current()->set_buffer_blob(buffer_blob); } return buffer_blob; } void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) { ! BufferBlob* buffer_blob = Compiler::get_buffer_blob(env); if (buffer_blob == NULL) { return; } if (!is_initialized()) { initialize(); } ! BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); + assert(buffer_blob != NULL, "Must exist"); // invoke compilation { // We are nested here because we need for the destructor // of Compilation to occur before we release the any // competing compiler thread

src/share/vm/c1/c1_Compiler.cpp
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