dart::CombinedCodeStatistics Class Reference

#include <code_statistics.h>

Public Types
enum	EntryCounter {   kTagAssertAssignableParameterCheck , kTagAssertAssignableInsertedByFrontend , kTagAssertAssignableFromSource , kTagCheckedEntry ,   kTagIntrinsics , kNumEntries }

Public Member Functions
	CombinedCodeStatistics ()
void	Begin (Instruction *instruction)
void	End (Instruction *instruction)
void	DumpStatistics ()

Static Public Member Functions
static EntryCounter	SlowPathCounterFor (Instruction::Tag tag)

Friends
class	CodeStatistics

Detailed Description

Definition at line 18 of file code_statistics.h.

Member Enumeration Documentation

EntryCounter

enum dart::CombinedCodeStatistics::EntryCounter

Enumerator
kTagAssertAssignableParameterCheck
kTagAssertAssignableInsertedByFrontend
kTagAssertAssignableFromSource
kTagCheckedEntry
kTagIntrinsics
kNumEntries

Definition at line 21 of file code_statistics.h.

                    {
#define DO(type, attrs) kTag##type,
    FOR_EACH_INSTRUCTION(DO)
#undef DO
 
#define DO(type, attrs) kTag##type##SlowPath,
    FOR_EACH_INSTRUCTION(DO)
#undef DO
 
    kTagAssertAssignableParameterCheck,
    kTagAssertAssignableInsertedByFrontend,
    kTagAssertAssignableFromSource,
 
    kTagCheckedEntry,
    kTagIntrinsics,
 
    kNumEntries,
  };

Constructor & Destructor Documentation

CombinedCodeStatistics()

dart::CombinedCodeStatistics::CombinedCodeStatistics

(

)

Definition at line 9 of file code_statistics.cc.

                                               {
  unaccounted_bytes_ = 0;
  alignment_bytes_ = 0;
  object_header_bytes_ = 0;
  return_const_count_ = 0;
  return_const_with_load_field_count_ = 0;
  intptr_t i = 0;
 
#define DO(type, attrs)                                                        \
  entries_[i].name = #type;                                                    \
  entries_[i].bytes = 0;                                                       \
  entries_[i++].count = 0;
 
  FOR_EACH_INSTRUCTION(DO)
 
#undef DO
 
#define DO(type, attrs)                                                        \
  entries_[i].name = "SlowPath:" #type;                                        \
  entries_[i].bytes = 0;                                                       \
  entries_[i++].count = 0;
 
  FOR_EACH_INSTRUCTION(DO)
 
#undef DO
 
#define INIT_SPECIAL_ENTRY(tag, str)                                           \
  entries_[tag].name = str;                                                    \
  entries_[tag].bytes = 0;                                                     \
  entries_[tag].count = 0;
 
  INIT_SPECIAL_ENTRY(kTagAssertAssignableParameterCheck,
                     "AssertAssignable:ParameterCheck");
  INIT_SPECIAL_ENTRY(kTagAssertAssignableInsertedByFrontend,
                     "AssertAssignable:InsertedByFrontend");
  INIT_SPECIAL_ENTRY(kTagAssertAssignableFromSource,
                     "AssertAssignable:FromSource");
 
  INIT_SPECIAL_ENTRY(kTagCheckedEntry, "<checked-entry-prologue>");
  INIT_SPECIAL_ENTRY(kTagIntrinsics, "<intrinsics>");
#undef INIT_SPECIAL_ENTRY
}

Member Function Documentation

Begin()

void dart::CombinedCodeStatistics::Begin

(

Instruction *

instruction

)

DumpStatistics()

void dart::CombinedCodeStatistics::DumpStatistics

(

)

Definition at line 52 of file code_statistics.cc.

                                            {
  ASSERT(unaccounted_bytes_ >= 0);
 
  Entry* sorted[kNumEntries];
  for (intptr_t i = 0; i < kNumEntries; i++) {
    sorted[i] = &entries_[i];
  }
  qsort(sorted, kNumEntries, sizeof(Entry*), &CompareEntries);
 
  intptr_t instruction_bytes = 0;
  for (intptr_t i = 0; i < kNumEntries; i++) {
    instruction_bytes += entries_[i].bytes;
  }
  intptr_t total = object_header_bytes_ + instruction_bytes +
                   unaccounted_bytes_ + alignment_bytes_;
  float ftotal = static_cast<float>(total) / 100.0;
 
  OS::PrintErr("--------------------\n");
 
  for (intptr_t i = 0; i < kNumEntries; i++) {
    Entry* entry = sorted[i];
    const char* name = entry->name;
    intptr_t bytes = entry->bytes;
    intptr_t count = entry->count;
    float percent = bytes / ftotal;
    float avg = static_cast<float>(bytes) / count;
    if (bytes > 0) {
      OS::PrintErr(
          "%5.2f %% "
          "% 8" Pd
          " bytes  "
          "% 8" Pd
          " count "
          "%8.2f avg bytes/entry    "
          "-    %s\n",
          percent, bytes, count, avg, name);
    }
  }
 
  OS::PrintErr("--------------------\n");
 
  OS::PrintErr("%5.2f %% % 8" Pd " bytes unaccounted\n",
               unaccounted_bytes_ / ftotal, unaccounted_bytes_);
  OS::PrintErr("%5.2f %% % 8" Pd " bytes alignment\n",
               alignment_bytes_ / ftotal, alignment_bytes_);
  OS::PrintErr("%5.2f %% % 8" Pd " bytes instruction object header\n",
               object_header_bytes_ / ftotal, object_header_bytes_);
  OS::PrintErr("%5.2f %% % 8" Pd " bytes instructions\n",
               instruction_bytes / ftotal, instruction_bytes);
  OS::PrintErr("--------------------\n");
  OS::PrintErr("%5.2f %% % 8" Pd " bytes in total\n", total / ftotal, total);
  OS::PrintErr("--------------------\n");
  OS::PrintErr("% 8" Pd " return-constant functions\n", return_const_count_);
  OS::PrintErr("% 8" Pd " return-constant-with-load-field functions\n",
               return_const_with_load_field_count_);
  OS::PrintErr("--------------------\n");
}

End()

void dart::CombinedCodeStatistics::End

(

Instruction *

instruction

)

SlowPathCounterFor()

static EntryCounter dart::CombinedCodeStatistics::SlowPathCounterFor ( Instruction::Tag  tag )

inlinestatic

Definition at line 48 of file code_statistics.h.

                                                             {
    return static_cast<CombinedCodeStatistics::EntryCounter>(
        CombinedCodeStatistics::kTagGraphEntrySlowPath + tag);
  }

Friends And Related Symbol Documentation

CodeStatistics

friend class CodeStatistics

friend

Definition at line 54 of file code_statistics.h.

---

The documentation for this class was generated from the following files:

• third_party/dart-lang/sdk/runtime/vm/compiler/backend/code_statistics.h
• third_party/dart-lang/sdk/runtime/vm/compiler/backend/code_statistics.cc