1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #include <assert.h> 29 #include <string.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <string> 33 #include <vector> 34 #include "src/v8.h" 35 36 #include "include/libplatform/libplatform.h" 37 #include "src/api.h" 38 #include "src/base/platform/platform.h" 39 #include "src/messages.h" 40 #include "src/runtime.h" 41 #include "src/scanner-character-streams.h" 42 #include "src/scopeinfo.h" 43 #include "tools/shell-utils.h" 44 #include "src/string-stream.h" 45 #include "src/scanner.h" 46 47 48 using namespace v8::internal; 49 50 51 class BaselineScanner { 52 public: 53 BaselineScanner(const char* fname, 54 Isolate* isolate, 55 Encoding encoding, 56 v8::base::ElapsedTimer* timer, 57 int repeat) 58 : stream_(NULL) { 59 int length = 0; 60 source_ = ReadFileAndRepeat(fname, &length, repeat); 61 unicode_cache_ = new UnicodeCache(); 62 scanner_ = new Scanner(unicode_cache_); 63 switch (encoding) { 64 case UTF8: 65 stream_ = new Utf8ToUtf16CharacterStream(source_, length); 66 break; 67 case UTF16: { 68 Handle<String> result = isolate->factory()->NewStringFromTwoByte( 69 Vector<const uint16_t>( 70 reinterpret_cast<const uint16_t*>(source_), 71 length / 2)).ToHandleChecked(); 72 stream_ = 73 new GenericStringUtf16CharacterStream(result, 0, result->length()); 74 break; 75 } 76 case LATIN1: { 77 Handle<String> result = isolate->factory()->NewStringFromOneByte( 78 Vector<const uint8_t>(source_, length)).ToHandleChecked(); 79 stream_ = 80 new GenericStringUtf16CharacterStream(result, 0, result->length()); 81 break; 82 } 83 } 84 timer->Start(); 85 scanner_->Initialize(stream_); 86 } 87 88 ~BaselineScanner() { 89 delete scanner_; 90 delete stream_; 91 delete unicode_cache_; 92 delete[] source_; 93 } 94 95 Token::Value Next(int* beg_pos, int* end_pos) { 96 Token::Value res = scanner_->Next(); 97 *beg_pos = scanner_->location().beg_pos; 98 *end_pos = scanner_->location().end_pos; 99 return res; 100 } 101 102 private: 103 UnicodeCache* unicode_cache_; 104 Scanner* scanner_; 105 const byte* source_; 106 BufferedUtf16CharacterStream* stream_; 107 }; 108 109 110 struct TokenWithLocation { 111 Token::Value value; 112 size_t beg; 113 size_t end; 114 TokenWithLocation() : value(Token::ILLEGAL), beg(0), end(0) { } 115 TokenWithLocation(Token::Value value, size_t beg, size_t end) : 116 value(value), beg(beg), end(end) { } 117 bool operator==(const TokenWithLocation& other) { 118 return value == other.value && beg == other.beg && end == other.end; 119 } 120 bool operator!=(const TokenWithLocation& other) { 121 return !(*this == other); 122 } 123 void Print(const char* prefix) const { 124 printf("%s %11s at (%d, %d)\n", 125 prefix, Token::Name(value), 126 static_cast<int>(beg), static_cast<int>(end)); 127 } 128 }; 129 130 131 v8::base::TimeDelta RunBaselineScanner(const char* fname, Isolate* isolate, 132 Encoding encoding, bool dump_tokens, 133 std::vector<TokenWithLocation>* tokens, 134 int repeat) { 135 v8::base::ElapsedTimer timer; 136 BaselineScanner scanner(fname, isolate, encoding, &timer, repeat); 137 Token::Value token; 138 int beg, end; 139 do { 140 token = scanner.Next(&beg, &end); 141 if (dump_tokens) { 142 tokens->push_back(TokenWithLocation(token, beg, end)); 143 } 144 } while (token != Token::EOS); 145 return timer.Elapsed(); 146 } 147 148 149 void PrintTokens(const char* name, 150 const std::vector<TokenWithLocation>& tokens) { 151 printf("No of tokens: %d\n", 152 static_cast<int>(tokens.size())); 153 printf("%s:\n", name); 154 for (size_t i = 0; i < tokens.size(); ++i) { 155 tokens[i].Print("=>"); 156 } 157 } 158 159 160 v8::base::TimeDelta ProcessFile( 161 const char* fname, 162 Encoding encoding, 163 Isolate* isolate, 164 bool print_tokens, 165 int repeat) { 166 if (print_tokens) { 167 printf("Processing file %s\n", fname); 168 } 169 HandleScope handle_scope(isolate); 170 std::vector<TokenWithLocation> baseline_tokens; 171 v8::base::TimeDelta baseline_time; 172 baseline_time = RunBaselineScanner( 173 fname, isolate, encoding, print_tokens, 174 &baseline_tokens, repeat); 175 if (print_tokens) { 176 PrintTokens("Baseline", baseline_tokens); 177 } 178 return baseline_time; 179 } 180 181 182 int main(int argc, char* argv[]) { 183 v8::V8::SetFlagsFromCommandLine(&argc, argv, true); 184 v8::V8::InitializeICU(); 185 v8::Platform* platform = v8::platform::CreateDefaultPlatform(); 186 v8::V8::InitializePlatform(platform); 187 v8::V8::Initialize(); 188 Encoding encoding = LATIN1; 189 bool print_tokens = false; 190 std::vector<std::string> fnames; 191 std::string benchmark; 192 int repeat = 1; 193 for (int i = 0; i < argc; ++i) { 194 if (strcmp(argv[i], "--latin1") == 0) { 195 encoding = LATIN1; 196 } else if (strcmp(argv[i], "--utf8") == 0) { 197 encoding = UTF8; 198 } else if (strcmp(argv[i], "--utf16") == 0) { 199 encoding = UTF16; 200 } else if (strcmp(argv[i], "--print-tokens") == 0) { 201 print_tokens = true; 202 } else if (strncmp(argv[i], "--benchmark=", 12) == 0) { 203 benchmark = std::string(argv[i]).substr(12); 204 } else if (strncmp(argv[i], "--repeat=", 9) == 0) { 205 std::string repeat_str = std::string(argv[i]).substr(9); 206 repeat = atoi(repeat_str.c_str()); 207 } else if (i > 0 && argv[i][0] != '-') { 208 fnames.push_back(std::string(argv[i])); 209 } 210 } 211 v8::Isolate* isolate = v8::Isolate::New(); 212 { 213 v8::Isolate::Scope isolate_scope(isolate); 214 v8::HandleScope handle_scope(isolate); 215 v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate); 216 v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global); 217 DCHECK(!context.IsEmpty()); 218 { 219 v8::Context::Scope scope(context); 220 double baseline_total = 0; 221 for (size_t i = 0; i < fnames.size(); i++) { 222 v8::base::TimeDelta time; 223 time = ProcessFile(fnames[i].c_str(), encoding, 224 reinterpret_cast<Isolate*>(isolate), print_tokens, 225 repeat); 226 baseline_total += time.InMillisecondsF(); 227 } 228 if (benchmark.empty()) benchmark = "Baseline"; 229 printf("%s(RunTime): %.f ms\n", benchmark.c_str(), baseline_total); 230 } 231 } 232 v8::V8::Dispose(); 233 v8::V8::ShutdownPlatform(); 234 delete platform; 235 return 0; 236 } 237
