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Add a flag to lexer-shell to replicate input file.

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R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/71783002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
ulan@chromium.org 2013-11-13 18:16:19 +00:00
parent 026c5507bd
commit 3099783743
1 changed files with 28 additions and 12 deletions
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40
tools/lexer-shell.cc
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@ -55,22 +55,30 @@ enum Encoding {
};
const byte* ReadFile(const char* name, Isolate* isolate, int* size) {
const byte* ReadFile(const char* name, Isolate* isolate,
int* size, int repeat) {
FILE* file = fopen(name, "rb");
*size = 0;
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);
*size = ftell(file);
int file_size = ftell(file);
rewind(file);
*size = file_size * repeat;
byte* chars = new byte[*size + 1];
chars[*size] = 0;
for (int i = 0; i < *size;) {
int read = static_cast<int>(fread(&chars[i], 1, *size - i, file));
for (int i = 0; i < file_size;) {
int read = static_cast<int>(fread(&chars[i], 1, file_size - i, file));
i += read;
}
fclose(file);
for (int i = file_size; i < *size; i++) {
chars[i] = chars[i - file_size];
}
chars[*size] = 0;
return chars;
}
@ -80,10 +88,11 @@ class BaselineScanner {
BaselineScanner(const char* fname,
Isolate* isolate,
Encoding encoding,
ElapsedTimer* timer)
ElapsedTimer* timer,
int repeat)
: stream_(NULL) {
int length = 0;
source_ = ReadFile(fname, isolate, &length);
source_ = ReadFile(fname, isolate, &length, repeat);
unicode_cache_ = new UnicodeCache();
scanner_ = new Scanner(unicode_cache_);
switch (encoding) {
@ -158,9 +167,10 @@ TimeDelta RunBaselineScanner(const char* fname,
Isolate* isolate,
Encoding encoding,
bool dump_tokens,
std::vector<TokenWithLocation>* tokens) {
std::vector<TokenWithLocation>* tokens,
int repeat) {
ElapsedTimer timer;
BaselineScanner scanner(fname, isolate, encoding, &timer);
BaselineScanner scanner(fname, isolate, encoding, &timer, repeat);
Token::Value token;
int beg, end;
do {
@ -188,7 +198,8 @@ TimeDelta ProcessFile(
const char* fname,
Encoding encoding,
Isolate* isolate,
bool print_tokens) {
bool print_tokens,
int repeat) {
if (print_tokens) {
printf("Processing file %s\n", fname);
}
@ -197,7 +208,7 @@ TimeDelta ProcessFile(
TimeDelta baseline_time;
baseline_time = RunBaselineScanner(
fname, isolate, encoding, print_tokens,
&baseline_tokens);
&baseline_tokens, repeat);
if (print_tokens) {
PrintTokens("Baseline", baseline_tokens);
}
@ -212,6 +223,7 @@ int main(int argc, char* argv[]) {
bool print_tokens = false;
std::vector<std::string> fnames;
std::string benchmark;
int repeat = 1;
for (int i = 0; i < argc; ++i) {
if (strcmp(argv[i], "--latin1") == 0) {
encoding = LATIN1;
@ -223,6 +235,9 @@ int main(int argc, char* argv[]) {
print_tokens = true;
} else if (strncmp(argv[i], "--benchmark=", 12) == 0) {
benchmark = std::string(argv[i]).substr(12);
} else if (strncmp(argv[i], "--repeat=", 9) == 0) {
std::string repeat_str = std::string(argv[i]).substr(9);
repeat = atoi(repeat_str.c_str());
} else if (i > 0 && argv[i][0] != '-') {
fnames.push_back(std::string(argv[i]));
}
@ -239,7 +254,8 @@ int main(int argc, char* argv[]) {
double baseline_total = 0;
for (size_t i = 0; i < fnames.size(); i++) {
TimeDelta time;
time = ProcessFile(fnames[i].c_str(), encoding, isolate, print_tokens);
time = ProcessFile(fnames[i].c_str(), encoding, isolate, print_tokens,
repeat);
baseline_total += time.InMillisecondsF();
}
if (benchmark.empty()) benchmark = "Baseline";