# File zjit.rb, line 123defdump_exit_locations(filename)unlesstrace_exit_locations_enabled?raiseArgumentError,"--zjit-trace-exits must be enabled to use dump_exit_locations."endFile.open(filename,"wb")do|file|Marshal.dump(RubyVM::ZJIT.exit_locations,file)file.sizeendend

# File zjit.rb, line 21defenabled?Primitive.cexpr!'RBOOL(rb_zjit_enabled_p)'end

# File zjit.rb, line 34defexit_locationsreturnunlesstrace_exit_locations_enabled?results =Primitive.rb_zjit_get_exit_locationsraw_samples =results[:raw]line_samples =results[:lines]frames =results[:frames]samples_count =0# Use nonexistent.def as a dummy file name.frame_template = {samples:0,total_samples:0,edges: {},name:name,file:"nonexistent.def",line:nil,lines: {} }# Loop through all possible instructions and setup the frame hash.RubyVM::INSTRUCTION_NAMES.each_with_indexdo|name,frame_id|frames[frame_id] =frame_template.dup.tap {|h|h[:name] =name }end# Loop through the raw_samples and build the hashes for StackProf.# The loop is based off an example in the StackProf documentation and therefore# this functionality can only work with that library.## Raw Samples:# [ length, frame1, frame2, frameN, ..., instruction, count## Line Samples# [ length, line_1, line_2, line_n, ..., dummy value, counti =0whilei<raw_samples.lengthstack_length =raw_samples[i]i+=1# consume the stack lengthsample_count =raw_samples[i+stack_length]prev_frame_id =nilstack_length.timesdo|idx|idx+=iframe_id =raw_samples[idx]ifprev_frame_idprev_frame =frames[prev_frame_id]prev_frame[:edges][frame_id]||=0prev_frame[:edges][frame_id]+=sample_countendframe_info =frames[frame_id]frame_info[:total_samples]+=sample_countframe_info[:lines][line_samples[idx]]||= [0,0]frame_info[:lines][line_samples[idx]][0]+=sample_countprev_frame_id =frame_idendi+=stack_length# consume the stacktop_frame_id =prev_frame_idtop_frame_line =1frames[top_frame_id][:samples]+=sample_countframes[top_frame_id][:lines]||= {}frames[top_frame_id][:lines][top_frame_line]||= [0,0]frames[top_frame_id][:lines][top_frame_line][1]+=sample_countsamples_count+=sample_counti+=1endresults[:samples] =samples_count# These values are mandatory to include for stackprof, but we don't use them.results[:missed_samples] =0results[:gc_samples] =0resultsend

# File zjit.rb, line 145defreset_stats!Primitive.rb_zjit_reset_stats_bangend

# File zjit.rb, line 140defstats(target_key =nil)Primitive.rb_zjit_stats(target_key)end

# File zjit.rb, line 135defstats_enabled?Primitive.rb_zjit_stats_enabled_pend

# File zjit.rb, line 150defstats_stringbuf =+"***ZJIT: Printing ZJIT statistics on exit***\n"stats =self.statsstats[:guard_type_exit_ratio] =stats[:exit_guard_type_failure].to_f/stats[:guard_type_count]*100# Show counters independent from exit_* or dynamic_send_*print_counters_with_prefix(prefix:'not_inlined_cfuncs_',prompt:'not inlined C methods',buf:,stats:,limit:20)# Don't show not_annotated_cfuncs right now because it mostly duplicates not_inlined_cfuncs# print_counters_with_prefix(prefix: 'not_annotated_cfuncs_', prompt: 'not annotated C methods', buf:, stats:, limit: 20)# Show fallback counters, ordered by the typical amount of fallbacks for the prefix at the timeprint_counters_with_prefix(prefix:'unspecialized_send_def_type_',prompt:'not optimized method types for send',buf:,stats:,limit:20)print_counters_with_prefix(prefix:'unspecialized_send_without_block_def_type_',prompt:'not optimized method types for send_without_block',buf:,stats:,limit:20)print_counters_with_prefix(prefix:'not_optimized_yarv_insn_',prompt:'not optimized instructions',buf:,stats:,limit:20)print_counters_with_prefix(prefix:'send_fallback_',prompt:'send fallback reasons',buf:,stats:,limit:20)# Show most popular unsupported call features. Because each call can# use multiple complex features, a decrease in this number does not# necessarily mean an increase in number of optimized calls.print_counters_with_prefix(prefix:'complex_arg_pass_',prompt:'popular complex argument-parameter features not optimized',buf:,stats:,limit:10)# Show exit counters, ordered by the typical amount of exits for the prefix at the timeprint_counters_with_prefix(prefix:'unhandled_yarv_insn_',prompt:'unhandled YARV insns',buf:,stats:,limit:20)print_counters_with_prefix(prefix:'compile_error_',prompt:'compile error reasons',buf:,stats:,limit:20)print_counters_with_prefix(prefix:'exit_',prompt:'side exit reasons',buf:,stats:,limit:20)# Show no-prefix counters, having the most important stat `ratio_in_zjit` at the endprint_counters([:send_count,:dynamic_send_count,:optimized_send_count,:iseq_optimized_send_count,:inline_cfunc_optimized_send_count,:inline_iseq_optimized_send_count,:non_variadic_cfunc_optimized_send_count,:variadic_cfunc_optimized_send_count,  ],buf:,stats:,right_align:true,base::send_count)print_counters([:dynamic_getivar_count,:dynamic_setivar_count,:compiled_iseq_count,:failed_iseq_count,:compile_time_ns,:profile_time_ns,:gc_time_ns,:invalidation_time_ns,:vm_write_pc_count,:vm_write_sp_count,:vm_write_locals_count,:vm_write_stack_count,:vm_write_to_parent_iseq_local_count,:vm_read_from_parent_iseq_local_count,:guard_type_count,:guard_type_exit_ratio,:code_region_bytes,:side_exit_count,:total_insn_count,:vm_insn_count,:zjit_insn_count,:ratio_in_zjit,  ],buf:,stats:)bufend

# File zjit.rb, line 26deftrace_exit_locations_enabled?Primitive.rb_zjit_trace_exit_locations_enabled_pend