Version 2.2.1
Debugger improvements.
Fixed minor bugs.
git-svn-id: http://v8.googlecode.com/svn/trunk@4346 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/utils.h b/src/utils.h
index 8ff1f9b..fa24947 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -597,6 +597,27 @@
}
+// Copies data from |src| to |dst|. The data spans MUST not overlap.
+inline void CopyWords(Object** dst, Object** src, int num_words) {
+ ASSERT(Min(dst, src) + num_words <= Max(dst, src));
+ ASSERT(num_words > 0);
+
+ // Use block copying memcpy if the segment we're copying is
+ // enough to justify the extra call/setup overhead.
+ static const int kBlockCopyLimit = 16;
+
+ if (num_words >= kBlockCopyLimit) {
+ memcpy(dst, src, num_words * kPointerSize);
+ } else {
+ int remaining = num_words;
+ do {
+ remaining--;
+ *dst++ = *src++;
+ } while (remaining > 0);
+ }
+}
+
+
// Calculate 10^exponent.
int TenToThe(int exponent);
@@ -636,7 +657,7 @@
return dest;
}
-
} } // namespace v8::internal
+
#endif // V8_UTILS_H_