author | iveresov |
Fri, 03 Sep 2010 17:51:07 -0700 | |
changeset 6453 | 970dc585ab63 |
parent 6186 | 7eef4cda471c |
child 6745 | a34ef8968a84 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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class BlockBegin; |
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class CompilationResourceObj; |
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class XHandlers; |
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class ExceptionInfo; |
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class DebugInformationRecorder; |
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class FrameMap; |
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class IR; |
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class IRScope; |
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class Instruction; |
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class LinearScan; |
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class OopMap; |
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class LIR_Emitter; |
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class LIR_Assembler; |
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class CodeEmitInfo; |
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class ciEnv; |
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class ciMethod; |
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class ValueStack; |
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class LIR_OprDesc; |
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class C1_MacroAssembler; |
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class CFGPrinter; |
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typedef LIR_OprDesc* LIR_Opr; |
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||
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||
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define_array(BasicTypeArray, BasicType) |
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define_stack(BasicTypeList, BasicTypeArray) |
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define_array(ExceptionInfoArray, ExceptionInfo*) |
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define_stack(ExceptionInfoList, ExceptionInfoArray) |
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class Compilation: public StackObj { |
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friend class CompilationResourceObj; |
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private: |
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// compilation specifics |
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Arena* _arena; |
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int _next_id; |
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int _next_block_id; |
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AbstractCompiler* _compiler; |
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ciEnv* _env; |
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ciMethod* _method; |
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int _osr_bci; |
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IR* _hir; |
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int _max_spills; |
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FrameMap* _frame_map; |
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C1_MacroAssembler* _masm; |
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bool _has_exception_handlers; |
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bool _has_fpu_code; |
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bool _has_unsafe_access; |
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bool _would_profile; |
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bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
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const char* _bailout_msg; |
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ExceptionInfoList* _exception_info_list; |
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ExceptionHandlerTable _exception_handler_table; |
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ImplicitExceptionTable _implicit_exception_table; |
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LinearScan* _allocator; |
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CodeOffsets _offsets; |
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CodeBuffer _code; |
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// compilation helpers |
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void initialize(); |
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void build_hir(); |
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void emit_lir(); |
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void emit_code_epilog(LIR_Assembler* assembler); |
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int emit_code_body(); |
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int compile_java_method(); |
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void install_code(int frame_size); |
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void compile_method(); |
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void generate_exception_handler_table(); |
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ExceptionInfoList* exception_info_list() const { return _exception_info_list; } |
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ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } |
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LinearScan* allocator() { return _allocator; } |
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void set_allocator(LinearScan* allocator) { _allocator = allocator; } |
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Instruction* _current_instruction; // the instruction currently being processed |
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#ifndef PRODUCT |
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Instruction* _last_instruction_printed; // the last instruction printed during traversal |
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#endif // PRODUCT |
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public: |
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// creation |
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Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
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int osr_bci, BufferBlob* buffer_blob); |
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~Compilation(); |
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static Compilation* current() { |
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return (Compilation*) ciEnv::current()->compiler_data(); |
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} |
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// accessors |
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ciEnv* env() const { return _env; } |
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AbstractCompiler* compiler() const { return _compiler; } |
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bool has_exception_handlers() const { return _has_exception_handlers; } |
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bool has_fpu_code() const { return _has_fpu_code; } |
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bool has_unsafe_access() const { return _has_unsafe_access; } |
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ciMethod* method() const { return _method; } |
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int osr_bci() const { return _osr_bci; } |
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bool is_osr_compile() const { return osr_bci() >= 0; } |
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IR* hir() const { return _hir; } |
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int max_spills() const { return _max_spills; } |
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FrameMap* frame_map() const { return _frame_map; } |
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CodeBuffer* code() { return &_code; } |
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C1_MacroAssembler* masm() const { return _masm; } |
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CodeOffsets* offsets() { return &_offsets; } |
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Arena* arena() { return _arena; } |
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// Instruction ids |
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int get_next_id() { return _next_id++; } |
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int number_of_instructions() const { return _next_id; } |
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// BlockBegin ids |
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int get_next_block_id() { return _next_block_id++; } |
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int number_of_blocks() const { return _next_block_id; } |
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// setters |
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void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } |
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void set_has_fpu_code(bool f) { _has_fpu_code = f; } |
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void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } |
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void set_would_profile(bool f) { _would_profile = f; } |
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// Add a set of exception handlers covering the given PC offset |
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void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); |
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// Statistics gathering |
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void notice_inlined_method(ciMethod* method); |
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// JSR 292 |
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bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
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void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
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DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
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Dependencies* dependency_recorder() const; // = _env->dependencies() |
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ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } |
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Instruction* current_instruction() const { return _current_instruction; } |
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Instruction* set_current_instruction(Instruction* instr) { |
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Instruction* previous = _current_instruction; |
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_current_instruction = instr; |
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return previous; |
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} |
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#ifndef PRODUCT |
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void maybe_print_current_instruction(); |
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#endif // PRODUCT |
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// error handling |
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void bailout(const char* msg); |
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bool bailed_out() const { return _bailout_msg != NULL; } |
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const char* bailout_msg() const { return _bailout_msg; } |
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static int desired_max_code_buffer_size() { |
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#ifndef PPC |
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return (int) NMethodSizeLimit; // default 256K or 512K |
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#else |
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// conditional branches on PPC are restricted to 16 bit signed |
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return MAX2((unsigned int)NMethodSizeLimit,32*K); |
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#endif |
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} |
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static int desired_max_constant_size() { |
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#ifndef PPC |
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return (int) NMethodSizeLimit / 10; // about 25K |
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#else |
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return (MAX2((unsigned int)NMethodSizeLimit, 32*K)) / 10; |
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#endif |
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} |
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static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
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// timers |
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static void print_timers(); |
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#ifndef PRODUCT |
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// debugging support. |
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// produces a file named c1compileonly in the current directory with |
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// directives to compile only the current method and it's inlines. |
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// The file can be passed to the command line option -XX:Flags=<filename> |
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void compile_only_this_method(); |
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void compile_only_this_scope(outputStream* st, IRScope* scope); |
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void exclude_this_method(); |
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#endif // PRODUCT |
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bool is_profiling() { |
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return env()->comp_level() == CompLevel_full_profile || |
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env()->comp_level() == CompLevel_limited_profile; |
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} |
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bool count_invocations() { return is_profiling(); } |
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bool count_backedges() { return is_profiling(); } |
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// Helpers for generation of profile information |
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bool profile_branches() { |
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return env()->comp_level() == CompLevel_full_profile && |
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C1UpdateMethodData && C1ProfileBranches; |
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} |
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bool profile_calls() { |
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return env()->comp_level() == CompLevel_full_profile && |
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C1UpdateMethodData && C1ProfileCalls; |
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} |
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bool profile_inlined_calls() { |
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return profile_calls() && C1ProfileInlinedCalls; |
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} |
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bool profile_checkcasts() { |
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return env()->comp_level() == CompLevel_full_profile && |
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C1UpdateMethodData && C1ProfileCheckcasts; |
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} |
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}; |
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// Macro definitions for unified bailout-support |
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// The methods bailout() and bailed_out() are present in all classes |
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// that might bailout, but forward all calls to Compilation |
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#define BAILOUT(msg) { bailout(msg); return; } |
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#define BAILOUT_(msg, res) { bailout(msg); return res; } |
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#define CHECK_BAILOUT() { if (bailed_out()) return; } |
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#define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } |
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class InstructionMark: public StackObj { |
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private: |
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Compilation* _compilation; |
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Instruction* _previous; |
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public: |
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InstructionMark(Compilation* compilation, Instruction* instr) { |
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_compilation = compilation; |
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_previous = _compilation->set_current_instruction(instr); |
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} |
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~InstructionMark() { |
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_compilation->set_current_instruction(_previous); |
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} |
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}; |
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//---------------------------------------------------------------------- |
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// Base class for objects allocated by the compiler in the compilation arena |
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class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { |
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public: |
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void* operator new(size_t size) { return Compilation::current()->arena()->Amalloc(size); } |
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void* operator new(size_t size, Arena* arena) { |
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return arena->Amalloc(size); |
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} |
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void operator delete(void* p) {} // nothing to do |
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}; |
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//---------------------------------------------------------------------- |
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// Class for aggregating exception handler information. |
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// Effectively extends XHandlers class with PC offset of |
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// potentially exception-throwing instruction. |
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// This class is used at the end of the compilation to build the |
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// ExceptionHandlerTable. |
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class ExceptionInfo: public CompilationResourceObj { |
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private: |
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int _pco; // PC of potentially exception-throwing instruction |
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XHandlers* _exception_handlers; // flat list of exception handlers covering this PC |
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public: |
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ExceptionInfo(int pco, XHandlers* exception_handlers) |
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: _pco(pco) |
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, _exception_handlers(exception_handlers) |
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{ } |
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int pco() { return _pco; } |
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XHandlers* exception_handlers() { return _exception_handlers; } |
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}; |