Version 3.8.7
Ensure that LRandom restores rsi after call to the C function on x64. (Chromium issue http://crbug.com/110509)
Fixing include issues on *bsd when building with scons. (issue 1897)
Provide a switch to specify -fno-strict-aliasing (issue 1887)
Move WIN32 define from standalone.gypi to common.gypi (issue 1760)
Fix corner-case in heap size estimation. (issue 1893)
Fix and enable NEW_NON_STRICT_FAST ArgumentsAccess stub on x64. (issue 1903)
Performance improvements and bug fixes.
git-svn-id: http://v8.googlecode.com/svn/trunk@10447 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/heap.cc b/src/heap.cc
index 3c871e2..fff1319 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
@@ -872,6 +872,8 @@
isolate_->counters()->objs_since_last_full()->Set(0);
contexts_disposed_ = 0;
+
+ isolate_->set_context_exit_happened(false);
}
@@ -1552,7 +1554,7 @@
if (marks_handling == TRANSFER_MARKS) {
if (Marking::TransferColor(source, target)) {
- MemoryChunk::IncrementLiveBytes(target->address(), size);
+ MemoryChunk::IncrementLiveBytesFromGC(target->address(), size);
}
}
}
@@ -2923,8 +2925,8 @@
bool is_ascii_data_in_two_byte_string = false;
if (!is_ascii) {
// At least one of the strings uses two-byte representation so we
- // can't use the fast case code for short ascii strings below, but
- // we can try to save memory if all chars actually fit in ascii.
+ // can't use the fast case code for short ASCII strings below, but
+ // we can try to save memory if all chars actually fit in ASCII.
is_ascii_data_in_two_byte_string =
first->HasOnlyAsciiChars() && second->HasOnlyAsciiChars();
if (is_ascii_data_in_two_byte_string) {
@@ -2933,9 +2935,9 @@
}
// If the resulting string is small make a flat string.
- if (length < String::kMinNonFlatLength) {
+ if (length < ConsString::kMinLength) {
// Note that neither of the two inputs can be a slice because:
- STATIC_ASSERT(String::kMinNonFlatLength <= SlicedString::kMinLength);
+ STATIC_ASSERT(ConsString::kMinLength <= SlicedString::kMinLength);
ASSERT(first->IsFlat());
ASSERT(second->IsFlat());
if (is_ascii) {
@@ -3011,7 +3013,7 @@
int end,
PretenureFlag pretenure) {
int length = end - start;
- if (length == 0) {
+ if (length <= 0) {
return empty_string();
} else if (length == 1) {
return LookupSingleCharacterStringFromCode(buffer->Get(start));
@@ -3635,8 +3637,8 @@
// TODO(1240798): Initialize the object's body using valid initial values
// according to the object's initial map. For example, if the map's
// instance type is JS_ARRAY_TYPE, the length field should be initialized
- // to a number (eg, Smi::FromInt(0)) and the elements initialized to a
- // fixed array (eg, Heap::empty_fixed_array()). Currently, the object
+ // to a number (e.g. Smi::FromInt(0)) and the elements initialized to a
+ // fixed array (e.g. Heap::empty_fixed_array()). Currently, the object
// verification code has to cope with (temporarily) invalid objects. See
// for example, JSArray::JSArrayVerify).
Object* filler;
@@ -4103,7 +4105,7 @@
ASSERT(chars >= 0);
// Ensure the chars matches the number of characters in the buffer.
ASSERT(static_cast<unsigned>(chars) == buffer->Length());
- // Determine whether the string is ascii.
+ // Determine whether the string is ASCII.
bool is_ascii = true;
while (buffer->has_more()) {
if (buffer->GetNext() > unibrow::Utf8::kMaxOneByteChar) {
@@ -5596,7 +5598,7 @@
// goes wrong, just return false. The caller should check the results and
// call Heap::TearDown() to release allocated memory.
//
- // If the heap is not yet configured (eg, through the API), configure it.
+ // If the heap is not yet configured (e.g. through the API), configure it.
// Configuration is based on the flags new-space-size (really the semispace
// size) and old-space-size if set or the initial values of semispace_size_
// and old_generation_size_ otherwise.