313844d842
R=yangguo@chromium.org Review URL: https://codereview.chromium.org/239243018 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20846 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
232 lines
7.4 KiB
C++
232 lines
7.4 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string>
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#include <vector>
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#include "v8.h"
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#include "api.h"
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#include "messages.h"
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#include "platform.h"
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#include "runtime.h"
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#include "scanner-character-streams.h"
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#include "scopeinfo.h"
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#include "shell-utils.h"
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#include "string-stream.h"
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#include "scanner.h"
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using namespace v8::internal;
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class BaselineScanner {
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public:
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BaselineScanner(const char* fname,
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Isolate* isolate,
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Encoding encoding,
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ElapsedTimer* timer,
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int repeat)
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: stream_(NULL) {
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int length = 0;
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source_ = ReadFileAndRepeat(fname, &length, repeat);
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unicode_cache_ = new UnicodeCache();
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scanner_ = new Scanner(unicode_cache_);
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switch (encoding) {
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case UTF8:
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stream_ = new Utf8ToUtf16CharacterStream(source_, length);
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break;
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case UTF16: {
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Handle<String> result = isolate->factory()->NewStringFromTwoByte(
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Vector<const uint16_t>(
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reinterpret_cast<const uint16_t*>(source_),
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length / 2)).ToHandleChecked();
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stream_ =
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new GenericStringUtf16CharacterStream(result, 0, result->length());
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break;
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}
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case LATIN1: {
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Handle<String> result = isolate->factory()->NewStringFromOneByte(
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Vector<const uint8_t>(source_, length)).ToHandleChecked();
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stream_ =
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new GenericStringUtf16CharacterStream(result, 0, result->length());
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break;
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}
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}
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timer->Start();
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scanner_->Initialize(stream_);
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}
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~BaselineScanner() {
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delete scanner_;
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delete stream_;
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delete unicode_cache_;
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delete[] source_;
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}
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Token::Value Next(int* beg_pos, int* end_pos) {
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Token::Value res = scanner_->Next();
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*beg_pos = scanner_->location().beg_pos;
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*end_pos = scanner_->location().end_pos;
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return res;
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}
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private:
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UnicodeCache* unicode_cache_;
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Scanner* scanner_;
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const byte* source_;
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BufferedUtf16CharacterStream* stream_;
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};
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struct TokenWithLocation {
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Token::Value value;
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size_t beg;
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size_t end;
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TokenWithLocation() : value(Token::ILLEGAL), beg(0), end(0) { }
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TokenWithLocation(Token::Value value, size_t beg, size_t end) :
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value(value), beg(beg), end(end) { }
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bool operator==(const TokenWithLocation& other) {
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return value == other.value && beg == other.beg && end == other.end;
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}
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bool operator!=(const TokenWithLocation& other) {
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return !(*this == other);
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}
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void Print(const char* prefix) const {
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printf("%s %11s at (%d, %d)\n",
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prefix, Token::Name(value),
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static_cast<int>(beg), static_cast<int>(end));
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}
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};
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TimeDelta RunBaselineScanner(const char* fname,
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Isolate* isolate,
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Encoding encoding,
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bool dump_tokens,
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std::vector<TokenWithLocation>* tokens,
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int repeat) {
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ElapsedTimer timer;
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BaselineScanner scanner(fname, isolate, encoding, &timer, repeat);
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Token::Value token;
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int beg, end;
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do {
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token = scanner.Next(&beg, &end);
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if (dump_tokens) {
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tokens->push_back(TokenWithLocation(token, beg, end));
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}
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} while (token != Token::EOS);
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return timer.Elapsed();
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}
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void PrintTokens(const char* name,
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const std::vector<TokenWithLocation>& tokens) {
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printf("No of tokens: %d\n",
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static_cast<int>(tokens.size()));
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printf("%s:\n", name);
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for (size_t i = 0; i < tokens.size(); ++i) {
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tokens[i].Print("=>");
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}
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}
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TimeDelta ProcessFile(
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const char* fname,
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Encoding encoding,
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Isolate* isolate,
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bool print_tokens,
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int repeat) {
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if (print_tokens) {
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printf("Processing file %s\n", fname);
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}
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HandleScope handle_scope(isolate);
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std::vector<TokenWithLocation> baseline_tokens;
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TimeDelta baseline_time;
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baseline_time = RunBaselineScanner(
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fname, isolate, encoding, print_tokens,
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&baseline_tokens, repeat);
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if (print_tokens) {
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PrintTokens("Baseline", baseline_tokens);
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}
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return baseline_time;
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}
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int main(int argc, char* argv[]) {
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v8::V8::InitializeICU();
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v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
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Encoding encoding = LATIN1;
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bool print_tokens = false;
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std::vector<std::string> fnames;
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std::string benchmark;
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int repeat = 1;
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for (int i = 0; i < argc; ++i) {
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if (strcmp(argv[i], "--latin1") == 0) {
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encoding = LATIN1;
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} else if (strcmp(argv[i], "--utf8") == 0) {
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encoding = UTF8;
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} else if (strcmp(argv[i], "--utf16") == 0) {
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encoding = UTF16;
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} else if (strcmp(argv[i], "--print-tokens") == 0) {
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print_tokens = true;
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} else if (strncmp(argv[i], "--benchmark=", 12) == 0) {
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benchmark = std::string(argv[i]).substr(12);
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} else if (strncmp(argv[i], "--repeat=", 9) == 0) {
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std::string repeat_str = std::string(argv[i]).substr(9);
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repeat = atoi(repeat_str.c_str());
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} else if (i > 0 && argv[i][0] != '-') {
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fnames.push_back(std::string(argv[i]));
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}
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}
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v8::Isolate* isolate = v8::Isolate::GetCurrent();
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{
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v8::HandleScope handle_scope(isolate);
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v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
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v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
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ASSERT(!context.IsEmpty());
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{
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v8::Context::Scope scope(context);
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Isolate* isolate = Isolate::Current();
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double baseline_total = 0;
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for (size_t i = 0; i < fnames.size(); i++) {
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TimeDelta time;
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time = ProcessFile(fnames[i].c_str(), encoding, isolate, print_tokens,
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repeat);
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baseline_total += time.InMillisecondsF();
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}
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if (benchmark.empty()) benchmark = "Baseline";
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printf("%s(RunTime): %.f ms\n", benchmark.c_str(), baseline_total);
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}
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}
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v8::V8::Dispose();
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return 0;
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}
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