aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "c1/c1_CFGPrinter.hpp"
aoqi@0: #include "c1/c1_Compilation.hpp"
aoqi@0: #include "c1/c1_IR.hpp"
aoqi@0: #include "c1/c1_LIRAssembler.hpp"
aoqi@0: #include "c1/c1_LinearScan.hpp"
aoqi@0: #include "c1/c1_MacroAssembler.hpp"
aoqi@0: #include "c1/c1_ValueMap.hpp"
aoqi@0: #include "c1/c1_ValueStack.hpp"
aoqi@0: #include "code/debugInfoRec.hpp"
aoqi@0: #include "compiler/compileLog.hpp"
aoqi@0: #include "c1/c1_RangeCheckElimination.hpp"
aoqi@0: 
aoqi@0: 
aoqi@0: typedef enum {
aoqi@0:   _t_compile,
aoqi@0:   _t_setup,
aoqi@0:   _t_buildIR,
aoqi@0:   _t_optimize_blocks,
aoqi@0:   _t_optimize_null_checks,
aoqi@0:   _t_rangeCheckElimination,
aoqi@0:   _t_emit_lir,
aoqi@0:   _t_linearScan,
aoqi@0:   _t_lirGeneration,
aoqi@0:   _t_lir_schedule,
aoqi@0:   _t_codeemit,
aoqi@0:   _t_codeinstall,
aoqi@0:   max_phase_timers
aoqi@0: } TimerName;
aoqi@0: 
aoqi@0: static const char * timer_name[] = {
aoqi@0:   "compile",
aoqi@0:   "setup",
aoqi@0:   "buildIR",
aoqi@0:   "optimize_blocks",
aoqi@0:   "optimize_null_checks",
aoqi@0:   "rangeCheckElimination",
aoqi@0:   "emit_lir",
aoqi@0:   "linearScan",
aoqi@0:   "lirGeneration",
aoqi@0:   "lir_schedule",
aoqi@0:   "codeemit",
aoqi@0:   "codeinstall"
aoqi@0: };
aoqi@0: 
aoqi@0: static elapsedTimer timers[max_phase_timers];
aoqi@0: static int totalInstructionNodes = 0;
aoqi@0: 
aoqi@0: class PhaseTraceTime: public TraceTime {
aoqi@0:  private:
aoqi@0:   JavaThread* _thread;
aoqi@0:   CompileLog* _log;
aoqi@0:   TimerName _timer;
aoqi@0: 
aoqi@0:  public:
aoqi@0:   PhaseTraceTime(TimerName timer)
aoqi@0:   : TraceTime("", &timers[timer], CITime || CITimeEach, Verbose),
aoqi@0:     _log(NULL), _timer(timer)
aoqi@0:   {
aoqi@0:     if (Compilation::current() != NULL) {
aoqi@0:       _log = Compilation::current()->log();
aoqi@0:     }
aoqi@0: 
aoqi@0:     if (_log != NULL) {
aoqi@0:       _log->begin_head("phase name='%s'", timer_name[_timer]);
aoqi@0:       _log->stamp();
aoqi@0:       _log->end_head();
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   ~PhaseTraceTime() {
aoqi@0:     if (_log != NULL)
aoqi@0:       _log->done("phase name='%s'", timer_name[_timer]);
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: // Implementation of Compilation
aoqi@0: 
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0: 
aoqi@0: void Compilation::maybe_print_current_instruction() {
aoqi@0:   if (_current_instruction != NULL && _last_instruction_printed != _current_instruction) {
aoqi@0:     _last_instruction_printed = _current_instruction;
aoqi@0:     _current_instruction->print_line();
aoqi@0:   }
aoqi@0: }
aoqi@0: #endif // PRODUCT
aoqi@0: 
aoqi@0: 
aoqi@0: DebugInformationRecorder* Compilation::debug_info_recorder() const {
aoqi@0:   return _env->debug_info();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: Dependencies* Compilation::dependency_recorder() const {
aoqi@0:   return _env->dependencies();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::initialize() {
aoqi@0:   // Use an oop recorder bound to the CI environment.
aoqi@0:   // (The default oop recorder is ignorant of the CI.)
aoqi@0:   OopRecorder* ooprec = new OopRecorder(_env->arena());
aoqi@0:   _env->set_oop_recorder(ooprec);
aoqi@0:   _env->set_debug_info(new DebugInformationRecorder(ooprec));
aoqi@0:   debug_info_recorder()->set_oopmaps(new OopMapSet());
aoqi@0:   _env->set_dependencies(new Dependencies(_env));
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::build_hir() {
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   // setup ir
aoqi@0:   CompileLog* log = this->log();
aoqi@0:   if (log != NULL) {
aoqi@0:     log->begin_head("parse method='%d' ",
aoqi@0:                     log->identify(_method));
aoqi@0:     log->stamp();
aoqi@0:     log->end_head();
aoqi@0:   }
aoqi@0:   _hir = new IR(this, method(), osr_bci());
aoqi@0:   if (log)  log->done("parse");
aoqi@0:   if (!_hir->is_valid()) {
aoqi@0:     bailout("invalid parsing");
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFGToFile) {
aoqi@0:     CFGPrinter::print_cfg(_hir, "After Generation of HIR", true, false);
aoqi@0:   }
aoqi@0: #endif
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFG || PrintCFG0) { tty->print_cr("CFG after parsing"); _hir->print(true); }
aoqi@0:   if (PrintIR  || PrintIR0 ) { tty->print_cr("IR after parsing"); _hir->print(false); }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   _hir->verify();
aoqi@0: 
aoqi@0:   if (UseC1Optimizations) {
aoqi@0:     NEEDS_CLEANUP
aoqi@0:     // optimization
aoqi@0:     PhaseTraceTime timeit(_t_optimize_blocks);
aoqi@0: 
aoqi@0:     _hir->optimize_blocks();
aoqi@0:   }
aoqi@0: 
aoqi@0:   _hir->verify();
aoqi@0: 
aoqi@0:   _hir->split_critical_edges();
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFG || PrintCFG1) { tty->print_cr("CFG after optimizations"); _hir->print(true); }
aoqi@0:   if (PrintIR  || PrintIR1 ) { tty->print_cr("IR after optimizations"); _hir->print(false); }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   _hir->verify();
aoqi@0: 
aoqi@0:   // compute block ordering for code generation
aoqi@0:   // the control flow must not be changed from here on
aoqi@0:   _hir->compute_code();
aoqi@0: 
aoqi@0:   if (UseGlobalValueNumbering) {
aoqi@0:     // No resource mark here! LoopInvariantCodeMotion can allocate ValueStack objects.
aoqi@0:     int instructions = Instruction::number_of_instructions();
aoqi@0:     GlobalValueNumbering gvn(_hir);
aoqi@0:     assert(instructions == Instruction::number_of_instructions(),
aoqi@0:            "shouldn't have created an instructions");
aoqi@0:   }
aoqi@0: 
aoqi@0:   _hir->verify();
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFGToFile) {
aoqi@0:     CFGPrinter::print_cfg(_hir, "Before RangeCheckElimination", true, false);
aoqi@0:   }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   if (RangeCheckElimination) {
aoqi@0:     if (_hir->osr_entry() == NULL) {
aoqi@0:       PhaseTraceTime timeit(_t_rangeCheckElimination);
aoqi@0:       RangeCheckElimination::eliminate(_hir);
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFGToFile) {
aoqi@0:     CFGPrinter::print_cfg(_hir, "After RangeCheckElimination", true, false);
aoqi@0:   }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   if (UseC1Optimizations) {
aoqi@0:     // loop invariant code motion reorders instructions and range
aoqi@0:     // check elimination adds new instructions so do null check
aoqi@0:     // elimination after.
aoqi@0:     NEEDS_CLEANUP
aoqi@0:     // optimization
aoqi@0:     PhaseTraceTime timeit(_t_optimize_null_checks);
aoqi@0: 
aoqi@0:     _hir->eliminate_null_checks();
aoqi@0:   }
aoqi@0: 
aoqi@0:   _hir->verify();
aoqi@0: 
aoqi@0:   // compute use counts after global value numbering
aoqi@0:   _hir->compute_use_counts();
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFG || PrintCFG2) { tty->print_cr("CFG before code generation"); _hir->code()->print(true); }
aoqi@0:   if (PrintIR  || PrintIR2 ) { tty->print_cr("IR before code generation"); _hir->code()->print(false, true); }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   _hir->verify();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::emit_lir() {
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   LIRGenerator gen(this, method());
aoqi@0:   {
aoqi@0:     PhaseTraceTime timeit(_t_lirGeneration);
aoqi@0:     hir()->iterate_linear_scan_order(&gen);
aoqi@0:   }
aoqi@0: 
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   {
aoqi@0:     PhaseTraceTime timeit(_t_linearScan);
aoqi@0: 
aoqi@0:     LinearScan* allocator = new LinearScan(hir(), &gen, frame_map());
aoqi@0:     set_allocator(allocator);
aoqi@0:     // Assign physical registers to LIR operands using a linear scan algorithm.
aoqi@0:     allocator->do_linear_scan();
aoqi@0:     CHECK_BAILOUT();
aoqi@0: 
aoqi@0:     _max_spills = allocator->max_spills();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (BailoutAfterLIR) {
aoqi@0:     if (PrintLIR && !bailed_out()) {
aoqi@0:       print_LIR(hir()->code());
aoqi@0:     }
aoqi@0:     bailout("Bailing out because of -XX:+BailoutAfterLIR");
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::emit_code_epilog(LIR_Assembler* assembler) {
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   CodeOffsets* code_offsets = assembler->offsets();
aoqi@0: 
aoqi@0:   // generate code or slow cases
aoqi@0:   assembler->emit_slow_case_stubs();
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   // generate exception adapters
aoqi@0:   assembler->emit_exception_entries(exception_info_list());
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   // Generate code for exception handler.
aoqi@0:   code_offsets->set_value(CodeOffsets::Exceptions, assembler->emit_exception_handler());
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   // Generate code for deopt handler.
aoqi@0:   code_offsets->set_value(CodeOffsets::Deopt, assembler->emit_deopt_handler());
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   // Emit the MethodHandle deopt handler code (if required).
aoqi@0:   if (has_method_handle_invokes()) {
aoqi@0:     // We can use the same code as for the normal deopt handler, we
aoqi@0:     // just need a different entry point address.
aoqi@0:     code_offsets->set_value(CodeOffsets::DeoptMH, assembler->emit_deopt_handler());
aoqi@0:     CHECK_BAILOUT();
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Emit the handler to remove the activation from the stack and
aoqi@0:   // dispatch to the caller.
aoqi@0:   offsets()->set_value(CodeOffsets::UnwindHandler, assembler->emit_unwind_handler());
aoqi@0: 
aoqi@0:   // done
aoqi@0:   masm()->flush();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: bool Compilation::setup_code_buffer(CodeBuffer* code, int call_stub_estimate) {
aoqi@0:   // Preinitialize the consts section to some large size:
aoqi@0:   int locs_buffer_size = 20 * (relocInfo::length_limit + sizeof(relocInfo));
aoqi@0:   char* locs_buffer = NEW_RESOURCE_ARRAY(char, locs_buffer_size);
aoqi@0:   code->insts()->initialize_shared_locs((relocInfo*)locs_buffer,
aoqi@0:                                         locs_buffer_size / sizeof(relocInfo));
aoqi@0:   code->initialize_consts_size(Compilation::desired_max_constant_size());
aoqi@0:   // Call stubs + two deopt handlers (regular and MH) + exception handler
aoqi@0:   int stub_size = (call_stub_estimate * LIR_Assembler::call_stub_size) +
aoqi@0:                    LIR_Assembler::exception_handler_size +
aoqi@0:                    (2 * LIR_Assembler::deopt_handler_size);
aoqi@0:   if (stub_size >= code->insts_capacity()) return false;
aoqi@0:   code->initialize_stubs_size(stub_size);
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: int Compilation::emit_code_body() {
aoqi@0:   // emit code
aoqi@0:   if (!setup_code_buffer(code(), allocator()->num_calls())) {
aoqi@0:     BAILOUT_("size requested greater than avail code buffer size", 0);
aoqi@0:   }
aoqi@0:   code()->initialize_oop_recorder(env()->oop_recorder());
aoqi@0: 
aoqi@0:   _masm = new C1_MacroAssembler(code());
aoqi@0:   _masm->set_oop_recorder(env()->oop_recorder());
aoqi@0: 
aoqi@0:   LIR_Assembler lir_asm(this);
aoqi@0: 
aoqi@0:   lir_asm.emit_code(hir()->code());
aoqi@0:   CHECK_BAILOUT_(0);
aoqi@0: 
aoqi@0:   emit_code_epilog(&lir_asm);
aoqi@0:   CHECK_BAILOUT_(0);
aoqi@0: 
aoqi@0:   generate_exception_handler_table();
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintExceptionHandlers && Verbose) {
aoqi@0:     exception_handler_table()->print();
aoqi@0:   }
aoqi@0: #endif /* PRODUCT */
aoqi@0: 
aoqi@0:   return frame_map()->framesize();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: int Compilation::compile_java_method() {
aoqi@0:   assert(!method()->is_native(), "should not reach here");
aoqi@0: 
aoqi@0:   if (BailoutOnExceptionHandlers) {
aoqi@0:     if (method()->has_exception_handlers()) {
aoqi@0:       bailout("linear scan can't handle exception handlers");
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   CHECK_BAILOUT_(no_frame_size);
aoqi@0: 
aoqi@0:   if (is_profiling() && !method()->ensure_method_data()) {
aoqi@0:     BAILOUT_("mdo allocation failed", no_frame_size);
aoqi@0:   }
aoqi@0: 
aoqi@0:   {
aoqi@0:     PhaseTraceTime timeit(_t_buildIR);
aoqi@0:     build_hir();
aoqi@0:   }
aoqi@0:   if (BailoutAfterHIR) {
aoqi@0:     BAILOUT_("Bailing out because of -XX:+BailoutAfterHIR", no_frame_size);
aoqi@0:   }
aoqi@0: 
aoqi@0: 
aoqi@0:   {
aoqi@0:     PhaseTraceTime timeit(_t_emit_lir);
aoqi@0: 
aoqi@0:     _frame_map = new FrameMap(method(), hir()->number_of_locks(), MAX2(4, hir()->max_stack()));
aoqi@0:     emit_lir();
aoqi@0:   }
aoqi@0:   CHECK_BAILOUT_(no_frame_size);
aoqi@0: 
aoqi@0:   {
aoqi@0:     PhaseTraceTime timeit(_t_codeemit);
aoqi@0:     return emit_code_body();
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void Compilation::install_code(int frame_size) {
aoqi@0:   // frame_size is in 32-bit words so adjust it intptr_t words
aoqi@0:   assert(frame_size == frame_map()->framesize(), "must match");
aoqi@0:   assert(in_bytes(frame_map()->framesize_in_bytes()) % sizeof(intptr_t) == 0, "must be at least pointer aligned");
aoqi@0:   _env->register_method(
aoqi@0:     method(),
aoqi@0:     osr_bci(),
aoqi@0:     &_offsets,
aoqi@0:     in_bytes(_frame_map->sp_offset_for_orig_pc()),
aoqi@0:     code(),
aoqi@0:     in_bytes(frame_map()->framesize_in_bytes()) / sizeof(intptr_t),
aoqi@0:     debug_info_recorder()->_oopmaps,
aoqi@0:     exception_handler_table(),
aoqi@0:     implicit_exception_table(),
aoqi@0:     compiler(),
aoqi@0:     _env->comp_level(),
aoqi@0:     has_unsafe_access(),
aoqi@0:     SharedRuntime::is_wide_vector(max_vector_size())
aoqi@0:   );
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::compile_method() {
aoqi@0:   // setup compilation
aoqi@0:   initialize();
aoqi@0: 
aoqi@0:   if (!method()->can_be_compiled()) {
aoqi@0:     // Prevent race condition 6328518.
aoqi@0:     // This can happen if the method is obsolete or breakpointed.
aoqi@0:     bailout("Bailing out because method is not compilable");
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (_env->jvmti_can_hotswap_or_post_breakpoint()) {
aoqi@0:     // We can assert evol_method because method->can_be_compiled is true.
aoqi@0:     dependency_recorder()->assert_evol_method(method());
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (method()->break_at_execute()) {
aoqi@0:     BREAKPOINT;
aoqi@0:   }
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintCFGToFile) {
aoqi@0:     CFGPrinter::print_compilation(this);
aoqi@0:   }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   // compile method
aoqi@0:   int frame_size = compile_java_method();
aoqi@0: 
aoqi@0:   // bailout if method couldn't be compiled
aoqi@0:   // Note: make sure we mark the method as not compilable!
aoqi@0:   CHECK_BAILOUT();
aoqi@0: 
aoqi@0:   if (InstallMethods) {
aoqi@0:     // install code
aoqi@0:     PhaseTraceTime timeit(_t_codeinstall);
aoqi@0:     install_code(frame_size);
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (log() != NULL) // Print code cache state into compiler log
aoqi@0:     log()->code_cache_state();
aoqi@0: 
aoqi@0:   totalInstructionNodes += Instruction::number_of_instructions();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::generate_exception_handler_table() {
aoqi@0:   // Generate an ExceptionHandlerTable from the exception handler
aoqi@0:   // information accumulated during the compilation.
aoqi@0:   ExceptionInfoList* info_list = exception_info_list();
aoqi@0: 
aoqi@0:   if (info_list->length() == 0) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // allocate some arrays for use by the collection code.
aoqi@0:   const int num_handlers = 5;
aoqi@0:   GrowableArray<intptr_t>* bcis = new GrowableArray<intptr_t>(num_handlers);
aoqi@0:   GrowableArray<intptr_t>* scope_depths = new GrowableArray<intptr_t>(num_handlers);
aoqi@0:   GrowableArray<intptr_t>* pcos = new GrowableArray<intptr_t>(num_handlers);
aoqi@0: 
aoqi@0:   for (int i = 0; i < info_list->length(); i++) {
aoqi@0:     ExceptionInfo* info = info_list->at(i);
aoqi@0:     XHandlers* handlers = info->exception_handlers();
aoqi@0: 
aoqi@0:     // empty the arrays
aoqi@0:     bcis->trunc_to(0);
aoqi@0:     scope_depths->trunc_to(0);
aoqi@0:     pcos->trunc_to(0);
aoqi@0: 
aoqi@0:     for (int i = 0; i < handlers->length(); i++) {
aoqi@0:       XHandler* handler = handlers->handler_at(i);
aoqi@0:       assert(handler->entry_pco() != -1, "must have been generated");
aoqi@0: 
aoqi@0:       int e = bcis->find(handler->handler_bci());
aoqi@0:       if (e >= 0 && scope_depths->at(e) == handler->scope_count()) {
aoqi@0:         // two different handlers are declared to dispatch to the same
aoqi@0:         // catch bci.  During parsing we created edges for each
aoqi@0:         // handler but we really only need one.  The exception handler
aoqi@0:         // table will also get unhappy if we try to declare both since
aoqi@0:         // it's nonsensical.  Just skip this handler.
aoqi@0:         continue;
aoqi@0:       }
aoqi@0: 
aoqi@0:       bcis->append(handler->handler_bci());
aoqi@0:       if (handler->handler_bci() == -1) {
aoqi@0:         // insert a wildcard handler at scope depth 0 so that the
aoqi@0:         // exception lookup logic with find it.
aoqi@0:         scope_depths->append(0);
aoqi@0:       } else {
aoqi@0:         scope_depths->append(handler->scope_count());
aoqi@0:     }
aoqi@0:       pcos->append(handler->entry_pco());
aoqi@0: 
aoqi@0:       // stop processing once we hit a catch any
aoqi@0:       if (handler->is_catch_all()) {
aoqi@0:         assert(i == handlers->length() - 1, "catch all must be last handler");
aoqi@0:   }
aoqi@0:     }
aoqi@0:     exception_handler_table()->add_subtable(info->pco(), bcis, scope_depths, pcos);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: Compilation::Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method,
aoqi@0:                          int osr_bci, BufferBlob* buffer_blob)
aoqi@0: : _compiler(compiler)
aoqi@0: , _env(env)
aoqi@0: , _log(env->log())
aoqi@0: , _method(method)
aoqi@0: , _osr_bci(osr_bci)
aoqi@0: , _hir(NULL)
aoqi@0: , _max_spills(-1)
aoqi@0: , _frame_map(NULL)
aoqi@0: , _masm(NULL)
aoqi@0: , _has_exception_handlers(false)
aoqi@0: , _has_fpu_code(true)   // pessimistic assumption
aoqi@0: , _would_profile(false)
aoqi@0: , _has_unsafe_access(false)
aoqi@0: , _has_method_handle_invokes(false)
aoqi@0: , _bailout_msg(NULL)
aoqi@0: , _exception_info_list(NULL)
aoqi@0: , _allocator(NULL)
aoqi@0: , _next_id(0)
aoqi@0: , _next_block_id(0)
aoqi@0: , _code(buffer_blob)
aoqi@0: , _has_access_indexed(false)
aoqi@0: , _current_instruction(NULL)
aoqi@0: , _interpreter_frame_size(0)
aoqi@0: #ifndef PRODUCT
aoqi@0: , _last_instruction_printed(NULL)
aoqi@0: #endif // PRODUCT
aoqi@0: {
aoqi@0:   PhaseTraceTime timeit(_t_compile);
aoqi@0:   _arena = Thread::current()->resource_area();
aoqi@0:   _env->set_compiler_data(this);
aoqi@0:   _exception_info_list = new ExceptionInfoList();
aoqi@0:   _implicit_exception_table.set_size(0);
aoqi@0:   compile_method();
aoqi@0:   if (bailed_out()) {
aoqi@0:     _env->record_method_not_compilable(bailout_msg(), !TieredCompilation);
aoqi@0:     if (is_profiling()) {
aoqi@0:       // Compilation failed, create MDO, which would signal the interpreter
aoqi@0:       // to start profiling on its own.
aoqi@0:       _method->ensure_method_data();
aoqi@0:     }
aoqi@0:   } else if (is_profiling()) {
aoqi@0:     ciMethodData *md = method->method_data_or_null();
aoqi@0:     if (md != NULL) {
aoqi@0:       md->set_would_profile(_would_profile);
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: Compilation::~Compilation() {
aoqi@0:   _env->set_compiler_data(NULL);
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers) {
aoqi@0: #ifndef PRODUCT
aoqi@0:   if (PrintExceptionHandlers && Verbose) {
aoqi@0:     tty->print_cr("  added exception scope for pco %d", pco);
aoqi@0:   }
aoqi@0: #endif
aoqi@0:   // Note: we do not have program counters for these exception handlers yet
aoqi@0:   exception_info_list()->push(new ExceptionInfo(pco, exception_handlers));
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::notice_inlined_method(ciMethod* method) {
aoqi@0:   _env->notice_inlined_method(method);
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::bailout(const char* msg) {
aoqi@0:   assert(msg != NULL, "bailout message must exist");
aoqi@0:   if (!bailed_out()) {
aoqi@0:     // keep first bailout message
aoqi@0:     if (PrintCompilation || PrintBailouts) tty->print_cr("compilation bailout: %s", msg);
aoqi@0:     _bailout_msg = msg;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: ciKlass* Compilation::cha_exact_type(ciType* type) {
aoqi@0:   if (type != NULL && type->is_loaded() && type->is_instance_klass()) {
aoqi@0:     ciInstanceKlass* ik = type->as_instance_klass();
aoqi@0:     assert(ik->exact_klass() == NULL, "no cha for final klass");
aoqi@0:     if (DeoptC1 && UseCHA && !(ik->has_subklass() || ik->is_interface())) {
aoqi@0:       dependency_recorder()->assert_leaf_type(ik);
aoqi@0:       return ik;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   return NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: void Compilation::print_timers() {
aoqi@0:   // tty->print_cr("    Native methods         : %6.3f s, Average : %2.3f", CompileBroker::_t_native_compilation.seconds(), CompileBroker::_t_native_compilation.seconds() / CompileBroker::_total_native_compile_count);
aoqi@0:   float total = timers[_t_setup].seconds() + timers[_t_buildIR].seconds() + timers[_t_emit_lir].seconds() + timers[_t_lir_schedule].seconds() + timers[_t_codeemit].seconds() + timers[_t_codeinstall].seconds();
aoqi@0: 
aoqi@0: 
aoqi@0:   tty->print_cr("    Detailed C1 Timings");
aoqi@0:   tty->print_cr("       Setup time:        %6.3f s (%4.1f%%)",    timers[_t_setup].seconds(),           (timers[_t_setup].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("       Build IR:          %6.3f s (%4.1f%%)",    timers[_t_buildIR].seconds(),         (timers[_t_buildIR].seconds() / total) * 100.0);
aoqi@0:   float t_optimizeIR = timers[_t_optimize_blocks].seconds() + timers[_t_optimize_null_checks].seconds();
aoqi@0:   tty->print_cr("         Optimize:           %6.3f s (%4.1f%%)", t_optimizeIR,                         (t_optimizeIR / total) * 100.0);
aoqi@0:   tty->print_cr("         RCE:                %6.3f s (%4.1f%%)", timers[_t_rangeCheckElimination].seconds(),      (timers[_t_rangeCheckElimination].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("       Emit LIR:          %6.3f s (%4.1f%%)",    timers[_t_emit_lir].seconds(),        (timers[_t_emit_lir].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("         LIR Gen:          %6.3f s (%4.1f%%)",   timers[_t_lirGeneration].seconds(), (timers[_t_lirGeneration].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("         Linear Scan:      %6.3f s (%4.1f%%)",   timers[_t_linearScan].seconds(),    (timers[_t_linearScan].seconds() / total) * 100.0);
aoqi@0:   NOT_PRODUCT(LinearScan::print_timers(timers[_t_linearScan].seconds()));
aoqi@0:   tty->print_cr("       LIR Schedule:      %6.3f s (%4.1f%%)",    timers[_t_lir_schedule].seconds(),  (timers[_t_lir_schedule].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("       Code Emission:     %6.3f s (%4.1f%%)",    timers[_t_codeemit].seconds(),        (timers[_t_codeemit].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("       Code Installation: %6.3f s (%4.1f%%)",    timers[_t_codeinstall].seconds(),     (timers[_t_codeinstall].seconds() / total) * 100.0);
aoqi@0:   tty->print_cr("       Instruction Nodes: %6d nodes",    totalInstructionNodes);
aoqi@0: 
aoqi@0:   NOT_PRODUCT(LinearScan::print_statistics());
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0: void Compilation::compile_only_this_method() {
aoqi@0:   ResourceMark rm;
aoqi@0:   fileStream stream(fopen("c1_compile_only", "wt"));
aoqi@0:   stream.print_cr("# c1 compile only directives");
aoqi@0:   compile_only_this_scope(&stream, hir()->top_scope());
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::compile_only_this_scope(outputStream* st, IRScope* scope) {
aoqi@0:   st->print("CompileOnly=");
aoqi@0:   scope->method()->holder()->name()->print_symbol_on(st);
aoqi@0:   st->print(".");
aoqi@0:   scope->method()->name()->print_symbol_on(st);
aoqi@0:   st->cr();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void Compilation::exclude_this_method() {
aoqi@0:   fileStream stream(fopen(".hotspot_compiler", "at"));
aoqi@0:   stream.print("exclude ");
aoqi@0:   method()->holder()->name()->print_symbol_on(&stream);
aoqi@0:   stream.print(" ");
aoqi@0:   method()->name()->print_symbol_on(&stream);
aoqi@0:   stream.cr();
aoqi@0:   stream.cr();
aoqi@0: }
aoqi@0: #endif