author | kvn |
Fri, 08 May 2009 10:44:20 -0700 | |
changeset 2867 | 69187054225f |
parent 1 | 489c9b5090e2 |
child 3261 | c7d5aae8d3f7 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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* |
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*/ |
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#include "incls/_precompiled.incl" |
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#include "incls/_c1_Compilation.cpp.incl" |
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typedef enum { |
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_t_compile, |
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_t_setup, |
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_t_optimizeIR, |
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_t_buildIR, |
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_t_emit_lir, |
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_t_linearScan, |
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_t_lirGeneration, |
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_t_lir_schedule, |
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_t_codeemit, |
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_t_codeinstall, |
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max_phase_timers |
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} TimerName; |
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static const char * timer_name[] = { |
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"compile", |
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"setup", |
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"optimizeIR", |
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"buildIR", |
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"emit_lir", |
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"linearScan", |
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"lirGeneration", |
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"lir_schedule", |
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"codeemit", |
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"codeinstall" |
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}; |
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static elapsedTimer timers[max_phase_timers]; |
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static int totalInstructionNodes = 0; |
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class PhaseTraceTime: public TraceTime { |
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private: |
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JavaThread* _thread; |
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public: |
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PhaseTraceTime(TimerName timer): |
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TraceTime("", &timers[timer], CITime || CITimeEach, Verbose) { |
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} |
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}; |
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Arena* Compilation::_arena = NULL; |
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Compilation* Compilation::_compilation = NULL; |
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// Implementation of Compilation |
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#ifndef PRODUCT |
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void Compilation::maybe_print_current_instruction() { |
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if (_current_instruction != NULL && _last_instruction_printed != _current_instruction) { |
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_last_instruction_printed = _current_instruction; |
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_current_instruction->print_line(); |
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} |
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} |
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#endif // PRODUCT |
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DebugInformationRecorder* Compilation::debug_info_recorder() const { |
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return _env->debug_info(); |
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} |
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Dependencies* Compilation::dependency_recorder() const { |
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return _env->dependencies(); |
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} |
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void Compilation::initialize() { |
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// Use an oop recorder bound to the CI environment. |
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// (The default oop recorder is ignorant of the CI.) |
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OopRecorder* ooprec = new OopRecorder(_env->arena()); |
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_env->set_oop_recorder(ooprec); |
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_env->set_debug_info(new DebugInformationRecorder(ooprec)); |
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debug_info_recorder()->set_oopmaps(new OopMapSet()); |
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_env->set_dependencies(new Dependencies(_env)); |
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} |
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void Compilation::build_hir() { |
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CHECK_BAILOUT(); |
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// setup ir |
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_hir = new IR(this, method(), osr_bci()); |
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if (!_hir->is_valid()) { |
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bailout("invalid parsing"); |
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return; |
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} |
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#ifndef PRODUCT |
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if (PrintCFGToFile) { |
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CFGPrinter::print_cfg(_hir, "After Generation of HIR", true, false); |
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} |
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#endif |
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#ifndef PRODUCT |
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if (PrintCFG || PrintCFG0) { tty->print_cr("CFG after parsing"); _hir->print(true); } |
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if (PrintIR || PrintIR0 ) { tty->print_cr("IR after parsing"); _hir->print(false); } |
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#endif |
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_hir->verify(); |
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if (UseC1Optimizations) { |
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NEEDS_CLEANUP |
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// optimization |
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PhaseTraceTime timeit(_t_optimizeIR); |
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_hir->optimize(); |
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} |
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_hir->verify(); |
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_hir->split_critical_edges(); |
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#ifndef PRODUCT |
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if (PrintCFG || PrintCFG1) { tty->print_cr("CFG after optimizations"); _hir->print(true); } |
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if (PrintIR || PrintIR1 ) { tty->print_cr("IR after optimizations"); _hir->print(false); } |
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#endif |
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_hir->verify(); |
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// compute block ordering for code generation |
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// the control flow must not be changed from here on |
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_hir->compute_code(); |
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if (UseGlobalValueNumbering) { |
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ResourceMark rm; |
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int instructions = Instruction::number_of_instructions(); |
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GlobalValueNumbering gvn(_hir); |
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assert(instructions == Instruction::number_of_instructions(), |
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"shouldn't have created an instructions"); |
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} |
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// compute use counts after global value numbering |
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_hir->compute_use_counts(); |
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#ifndef PRODUCT |
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if (PrintCFG || PrintCFG2) { tty->print_cr("CFG before code generation"); _hir->code()->print(true); } |
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if (PrintIR || PrintIR2 ) { tty->print_cr("IR before code generation"); _hir->code()->print(false, true); } |
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#endif |
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_hir->verify(); |
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} |
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void Compilation::emit_lir() { |
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CHECK_BAILOUT(); |
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LIRGenerator gen(this, method()); |
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{ |
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PhaseTraceTime timeit(_t_lirGeneration); |
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hir()->iterate_linear_scan_order(&gen); |
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} |
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CHECK_BAILOUT(); |
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{ |
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PhaseTraceTime timeit(_t_linearScan); |
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LinearScan* allocator = new LinearScan(hir(), &gen, frame_map()); |
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set_allocator(allocator); |
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// Assign physical registers to LIR operands using a linear scan algorithm. |
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allocator->do_linear_scan(); |
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CHECK_BAILOUT(); |
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_max_spills = allocator->max_spills(); |
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} |
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if (BailoutAfterLIR) { |
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if (PrintLIR && !bailed_out()) { |
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print_LIR(hir()->code()); |
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} |
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bailout("Bailing out because of -XX:+BailoutAfterLIR"); |
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} |
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} |
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void Compilation::emit_code_epilog(LIR_Assembler* assembler) { |
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CHECK_BAILOUT(); |
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// generate code or slow cases |
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assembler->emit_slow_case_stubs(); |
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CHECK_BAILOUT(); |
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// generate exception adapters |
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assembler->emit_exception_entries(exception_info_list()); |
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CHECK_BAILOUT(); |
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// generate code for exception handler |
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assembler->emit_exception_handler(); |
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CHECK_BAILOUT(); |
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assembler->emit_deopt_handler(); |
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CHECK_BAILOUT(); |
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// done |
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masm()->flush(); |
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} |
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int Compilation::emit_code_body() { |
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// emit code |
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Runtime1::setup_code_buffer(code(), allocator()->num_calls()); |
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code()->initialize_oop_recorder(env()->oop_recorder()); |
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_masm = new C1_MacroAssembler(code()); |
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_masm->set_oop_recorder(env()->oop_recorder()); |
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LIR_Assembler lir_asm(this); |
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lir_asm.emit_code(hir()->code()); |
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CHECK_BAILOUT_(0); |
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emit_code_epilog(&lir_asm); |
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CHECK_BAILOUT_(0); |
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generate_exception_handler_table(); |
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#ifndef PRODUCT |
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if (PrintExceptionHandlers && Verbose) { |
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exception_handler_table()->print(); |
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} |
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#endif /* PRODUCT */ |
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return frame_map()->framesize(); |
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} |
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int Compilation::compile_java_method() { |
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assert(!method()->is_native(), "should not reach here"); |
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if (BailoutOnExceptionHandlers) { |
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if (method()->has_exception_handlers()) { |
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bailout("linear scan can't handle exception handlers"); |
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} |
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} |
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CHECK_BAILOUT_(no_frame_size); |
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{ |
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PhaseTraceTime timeit(_t_buildIR); |
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build_hir(); |
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} |
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if (BailoutAfterHIR) { |
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BAILOUT_("Bailing out because of -XX:+BailoutAfterHIR", no_frame_size); |
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} |
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{ |
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PhaseTraceTime timeit(_t_emit_lir); |
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_frame_map = new FrameMap(method(), hir()->number_of_locks(), MAX2(4, hir()->max_stack())); |
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emit_lir(); |
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} |
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CHECK_BAILOUT_(no_frame_size); |
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{ |
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PhaseTraceTime timeit(_t_codeemit); |
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return emit_code_body(); |
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} |
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} |
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void Compilation::install_code(int frame_size) { |
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// frame_size is in 32-bit words so adjust it intptr_t words |
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assert(frame_size == frame_map()->framesize(), "must match"); |
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assert(in_bytes(frame_map()->framesize_in_bytes()) % sizeof(intptr_t) == 0, "must be at least pointer aligned"); |
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_env->register_method( |
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method(), |
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osr_bci(), |
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&_offsets, |
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in_bytes(_frame_map->sp_offset_for_orig_pc()), |
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code(), |
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in_bytes(frame_map()->framesize_in_bytes()) / sizeof(intptr_t), |
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debug_info_recorder()->_oopmaps, |
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exception_handler_table(), |
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implicit_exception_table(), |
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compiler(), |
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_env->comp_level(), |
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needs_debug_information(), |
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has_unsafe_access() |
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); |
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} |
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void Compilation::compile_method() { |
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// setup compilation |
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initialize(); |
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if (!method()->can_be_compiled()) { |
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// Prevent race condition 6328518. |
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// This can happen if the method is obsolete or breakpointed. |
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bailout("Bailing out because method is not compilable"); |
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return; |
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} |
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||
2867
69187054225f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
1
diff
changeset
|
322 |
if (_env->jvmti_can_hotswap_or_post_breakpoint()) { |
1 | 323 |
// We can assert evol_method because method->can_be_compiled is true. |
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dependency_recorder()->assert_evol_method(method()); |
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} |
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if (method()->break_at_execute()) { |
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BREAKPOINT; |
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} |
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#ifndef PRODUCT |
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if (PrintCFGToFile) { |
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CFGPrinter::print_compilation(this); |
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} |
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#endif |
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// compile method |
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int frame_size = compile_java_method(); |
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// bailout if method couldn't be compiled |
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// Note: make sure we mark the method as not compilable! |
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CHECK_BAILOUT(); |
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||
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if (InstallMethods) { |
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// install code |
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PhaseTraceTime timeit(_t_codeinstall); |
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install_code(frame_size); |
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} |
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totalInstructionNodes += Instruction::number_of_instructions(); |
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} |
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void Compilation::generate_exception_handler_table() { |
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// Generate an ExceptionHandlerTable from the exception handler |
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// information accumulated during the compilation. |
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ExceptionInfoList* info_list = exception_info_list(); |
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357 |
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358 |
if (info_list->length() == 0) { |
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return; |
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360 |
} |
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361 |
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362 |
// allocate some arrays for use by the collection code. |
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const int num_handlers = 5; |
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GrowableArray<intptr_t>* bcis = new GrowableArray<intptr_t>(num_handlers); |
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GrowableArray<intptr_t>* scope_depths = new GrowableArray<intptr_t>(num_handlers); |
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366 |
GrowableArray<intptr_t>* pcos = new GrowableArray<intptr_t>(num_handlers); |
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367 |
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368 |
for (int i = 0; i < info_list->length(); i++) { |
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ExceptionInfo* info = info_list->at(i); |
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XHandlers* handlers = info->exception_handlers(); |
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371 |
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372 |
// empty the arrays |
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bcis->trunc_to(0); |
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scope_depths->trunc_to(0); |
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pcos->trunc_to(0); |
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376 |
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377 |
for (int i = 0; i < handlers->length(); i++) { |
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XHandler* handler = handlers->handler_at(i); |
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379 |
assert(handler->entry_pco() != -1, "must have been generated"); |
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380 |
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381 |
int e = bcis->find(handler->handler_bci()); |
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382 |
if (e >= 0 && scope_depths->at(e) == handler->scope_count()) { |
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383 |
// two different handlers are declared to dispatch to the same |
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384 |
// catch bci. During parsing we created edges for each |
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385 |
// handler but we really only need one. The exception handler |
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386 |
// table will also get unhappy if we try to declare both since |
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387 |
// it's nonsensical. Just skip this handler. |
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388 |
continue; |
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389 |
} |
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390 |
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391 |
bcis->append(handler->handler_bci()); |
|
392 |
if (handler->handler_bci() == -1) { |
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393 |
// insert a wildcard handler at scope depth 0 so that the |
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394 |
// exception lookup logic with find it. |
|
395 |
scope_depths->append(0); |
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396 |
} else { |
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397 |
scope_depths->append(handler->scope_count()); |
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398 |
} |
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399 |
pcos->append(handler->entry_pco()); |
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400 |
||
401 |
// stop processing once we hit a catch any |
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402 |
if (handler->is_catch_all()) { |
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403 |
assert(i == handlers->length() - 1, "catch all must be last handler"); |
|
404 |
} |
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405 |
} |
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406 |
exception_handler_table()->add_subtable(info->pco(), bcis, scope_depths, pcos); |
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407 |
} |
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408 |
} |
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409 |
||
410 |
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411 |
Compilation::Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, int osr_bci) |
|
412 |
: _compiler(compiler) |
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413 |
, _env(env) |
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414 |
, _method(method) |
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415 |
, _osr_bci(osr_bci) |
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416 |
, _hir(NULL) |
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417 |
, _max_spills(-1) |
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418 |
, _frame_map(NULL) |
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419 |
, _masm(NULL) |
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420 |
, _has_exception_handlers(false) |
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421 |
, _has_fpu_code(true) // pessimistic assumption |
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422 |
, _has_unsafe_access(false) |
|
423 |
, _bailout_msg(NULL) |
|
424 |
, _exception_info_list(NULL) |
|
425 |
, _allocator(NULL) |
|
426 |
, _code(Runtime1::get_buffer_blob()->instructions_begin(), |
|
427 |
Runtime1::get_buffer_blob()->instructions_size()) |
|
428 |
, _current_instruction(NULL) |
|
429 |
#ifndef PRODUCT |
|
430 |
, _last_instruction_printed(NULL) |
|
431 |
#endif // PRODUCT |
|
432 |
{ |
|
433 |
PhaseTraceTime timeit(_t_compile); |
|
434 |
||
435 |
assert(_arena == NULL, "shouldn't only one instance of Compilation in existence at a time"); |
|
436 |
_arena = Thread::current()->resource_area(); |
|
437 |
_compilation = this; |
|
2867
69187054225f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
1
diff
changeset
|
438 |
_needs_debug_information = _env->jvmti_can_examine_or_deopt_anywhere() || |
1 | 439 |
JavaMonitorsInStackTrace || AlwaysEmitDebugInfo || DeoptimizeALot; |
440 |
_exception_info_list = new ExceptionInfoList(); |
|
441 |
_implicit_exception_table.set_size(0); |
|
442 |
compile_method(); |
|
443 |
} |
|
444 |
||
445 |
Compilation::~Compilation() { |
|
446 |
_arena = NULL; |
|
447 |
_compilation = NULL; |
|
448 |
} |
|
449 |
||
450 |
||
451 |
void Compilation::add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers) { |
|
452 |
#ifndef PRODUCT |
|
453 |
if (PrintExceptionHandlers && Verbose) { |
|
454 |
tty->print_cr(" added exception scope for pco %d", pco); |
|
455 |
} |
|
456 |
#endif |
|
457 |
// Note: we do not have program counters for these exception handlers yet |
|
458 |
exception_info_list()->push(new ExceptionInfo(pco, exception_handlers)); |
|
459 |
} |
|
460 |
||
461 |
||
462 |
void Compilation::notice_inlined_method(ciMethod* method) { |
|
463 |
_env->notice_inlined_method(method); |
|
464 |
} |
|
465 |
||
466 |
||
467 |
void Compilation::bailout(const char* msg) { |
|
468 |
assert(msg != NULL, "bailout message must exist"); |
|
469 |
if (!bailed_out()) { |
|
470 |
// keep first bailout message |
|
471 |
if (PrintBailouts) tty->print_cr("compilation bailout: %s", msg); |
|
472 |
_bailout_msg = msg; |
|
473 |
} |
|
474 |
} |
|
475 |
||
476 |
||
477 |
void Compilation::print_timers() { |
|
478 |
// 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); |
|
479 |
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(); |
|
480 |
||
481 |
||
482 |
tty->print_cr(" Detailed C1 Timings"); |
|
483 |
tty->print_cr(" Setup time: %6.3f s (%4.1f%%)", timers[_t_setup].seconds(), (timers[_t_setup].seconds() / total) * 100.0); |
|
484 |
tty->print_cr(" Build IR: %6.3f s (%4.1f%%)", timers[_t_buildIR].seconds(), (timers[_t_buildIR].seconds() / total) * 100.0); |
|
485 |
tty->print_cr(" Optimize: %6.3f s (%4.1f%%)", timers[_t_optimizeIR].seconds(), (timers[_t_optimizeIR].seconds() / total) * 100.0); |
|
486 |
tty->print_cr(" Emit LIR: %6.3f s (%4.1f%%)", timers[_t_emit_lir].seconds(), (timers[_t_emit_lir].seconds() / total) * 100.0); |
|
487 |
tty->print_cr(" LIR Gen: %6.3f s (%4.1f%%)", timers[_t_lirGeneration].seconds(), (timers[_t_lirGeneration].seconds() / total) * 100.0); |
|
488 |
tty->print_cr(" Linear Scan: %6.3f s (%4.1f%%)", timers[_t_linearScan].seconds(), (timers[_t_linearScan].seconds() / total) * 100.0); |
|
489 |
NOT_PRODUCT(LinearScan::print_timers(timers[_t_linearScan].seconds())); |
|
490 |
tty->print_cr(" LIR Schedule: %6.3f s (%4.1f%%)", timers[_t_lir_schedule].seconds(), (timers[_t_lir_schedule].seconds() / total) * 100.0); |
|
491 |
tty->print_cr(" Code Emission: %6.3f s (%4.1f%%)", timers[_t_codeemit].seconds(), (timers[_t_codeemit].seconds() / total) * 100.0); |
|
492 |
tty->print_cr(" Code Installation: %6.3f s (%4.1f%%)", timers[_t_codeinstall].seconds(), (timers[_t_codeinstall].seconds() / total) * 100.0); |
|
493 |
tty->print_cr(" Instruction Nodes: %6d nodes", totalInstructionNodes); |
|
494 |
||
495 |
NOT_PRODUCT(LinearScan::print_statistics()); |
|
496 |
} |
|
497 |
||
498 |
||
499 |
#ifndef PRODUCT |
|
500 |
void Compilation::compile_only_this_method() { |
|
501 |
ResourceMark rm; |
|
502 |
fileStream stream(fopen("c1_compile_only", "wt")); |
|
503 |
stream.print_cr("# c1 compile only directives"); |
|
504 |
compile_only_this_scope(&stream, hir()->top_scope()); |
|
505 |
} |
|
506 |
||
507 |
||
508 |
void Compilation::compile_only_this_scope(outputStream* st, IRScope* scope) { |
|
509 |
st->print("CompileOnly="); |
|
510 |
scope->method()->holder()->name()->print_symbol_on(st); |
|
511 |
st->print("."); |
|
512 |
scope->method()->name()->print_symbol_on(st); |
|
513 |
st->cr(); |
|
514 |
} |
|
515 |
||
516 |
||
517 |
void Compilation::exclude_this_method() { |
|
518 |
fileStream stream(fopen(".hotspot_compiler", "at")); |
|
519 |
stream.print("exclude "); |
|
520 |
method()->holder()->name()->print_symbol_on(&stream); |
|
521 |
stream.print(" "); |
|
522 |
method()->name()->print_symbol_on(&stream); |
|
523 |
stream.cr(); |
|
524 |
stream.cr(); |
|
525 |
} |
|
526 |
#endif |