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Side by Side Diff: src/v8utils.h

Issue 10332054: Force inlining CopyChars and String::Get. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: . Created 8 years, 7 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution. 11 // with the distribution.
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192 // The returned buffer must be freed by the caller. 192 // The returned buffer must be freed by the caller.
193 // On return, *exits tells whether the file existed. 193 // On return, *exits tells whether the file existed.
194 Vector<const char> ReadFile(const char* filename, 194 Vector<const char> ReadFile(const char* filename,
195 bool* exists, 195 bool* exists,
196 bool verbose = true); 196 bool verbose = true);
197 Vector<const char> ReadFile(FILE* file, 197 Vector<const char> ReadFile(FILE* file,
198 bool* exists, 198 bool* exists,
199 bool verbose = true); 199 bool verbose = true);
200 200
201 201
202
203 // Copy from ASCII/16bit chars to ASCII/16bit chars. 202 // Copy from ASCII/16bit chars to ASCII/16bit chars.
204 template <typename sourcechar, typename sinkchar> 203 template <typename sourcechar, typename sinkchar>
205 inline void CopyChars(sinkchar* dest, const sourcechar* src, int chars) { 204 INLINE(void CopyChars(sinkchar* dest, const sourcechar* src, int chars));
205
206
207 template <typename sourcechar, typename sinkchar>
208 void CopyChars(sinkchar* dest, const sourcechar* src, int chars) {
206 sinkchar* limit = dest + chars; 209 sinkchar* limit = dest + chars;
207 #ifdef V8_HOST_CAN_READ_UNALIGNED 210 #ifdef V8_HOST_CAN_READ_UNALIGNED
208 if (sizeof(*dest) == sizeof(*src)) { 211 if (sizeof(*dest) == sizeof(*src)) {
209 if (chars >= static_cast<int>(OS::kMinComplexMemCopy / sizeof(*dest))) { 212 if (chars >= static_cast<int>(OS::kMinComplexMemCopy / sizeof(*dest))) {
210 OS::MemCopy(dest, src, chars * sizeof(*dest)); 213 OS::MemCopy(dest, src, chars * sizeof(*dest));
211 return; 214 return;
212 } 215 }
213 // Number of characters in a uintptr_t. 216 // Number of characters in a uintptr_t.
214 static const int kStepSize = sizeof(uintptr_t) / sizeof(*dest); // NOLINT 217 static const int kStepSize = sizeof(uintptr_t) / sizeof(*dest); // NOLINT
215 while (dest <= limit - kStepSize) { 218 while (dest <= limit - kStepSize) {
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267 270
268 // Add formatted contents like printf based on a va_list. 271 // Add formatted contents like printf based on a va_list.
269 void AddFormattedList(const char* format, va_list list); 272 void AddFormattedList(const char* format, va_list list);
270 private: 273 private:
271 DISALLOW_IMPLICIT_CONSTRUCTORS(StringBuilder); 274 DISALLOW_IMPLICIT_CONSTRUCTORS(StringBuilder);
272 }; 275 };
273 276
274 } } // namespace v8::internal 277 } } // namespace v8::internal
275 278
276 #endif // V8_V8UTILS_H_ 279 #endif // V8_V8UTILS_H_
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