Revision: 21866
Author: [email protected]
Date: Tue Jun 17 06:48:55 2014 UTC
Log: Version 3.27.32 (based on bleeding_edge revision r21865)
Performance and stability improvements on all platforms.
http://code.google.com/p/v8/source/detail?r=21866
Added:
/trunk/test/mjsunit/regress/regress-385054.js
Modified:
/trunk/ChangeLog
/trunk/src/heap.cc
/trunk/src/heap.h
/trunk/src/hydrogen-bce.cc
/trunk/src/hydrogen-gvn.cc
/trunk/src/hydrogen-instructions.h
/trunk/src/version.cc
=======================================
--- /dev/null
+++ /trunk/test/mjsunit/regress/regress-385054.js Tue Jun 17 06:48:55 2014
UTC
@@ -0,0 +1,16 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+function f(x) {
+ var a = [1, 2];
+ a[x];
+ return a[0 - x];
+}
+
+f(0);
+f(0);
+%OptimizeFunctionOnNextCall(f);
+assertEquals(undefined, f(1));
=======================================
--- /trunk/ChangeLog Mon Jun 16 11:36:14 2014 UTC
+++ /trunk/ChangeLog Tue Jun 17 06:48:55 2014 UTC
@@ -1,3 +1,8 @@
+2014-06-17: Version 3.27.32
+
+ Performance and stability improvements on all platforms.
+
+
2014-06-16: Version 3.27.31
Version fix.
=======================================
--- /trunk/src/heap.cc Mon Jun 16 11:20:10 2014 UTC
+++ /trunk/src/heap.cc Tue Jun 17 06:48:55 2014 UTC
@@ -60,6 +60,7 @@
// Will be 4 * reserved_semispace_size_ to ensure that young
// generation can be aligned to its size.
maximum_committed_(0),
+ old_space_growing_factor_(4),
survived_since_last_expansion_(0),
sweep_generation_(0),
always_allocate_scope_depth_(0),
@@ -5024,6 +5025,12 @@
AllocationMemento::kSize));
code_range_size_ = code_range_size * MB;
+
+ // We set the old generation growing factor to 2 to grow the heap slower
on
+ // memory-constrained devices.
+ if (max_old_generation_size_ <= kMaxOldSpaceSizeMediumMemoryDevice) {
+ old_space_growing_factor_ = 2;
+ }
configured_ = true;
return true;
=======================================
--- /trunk/src/heap.h Mon Jun 16 11:20:10 2014 UTC
+++ /trunk/src/heap.h Tue Jun 17 06:48:55 2014 UTC
@@ -1074,23 +1074,9 @@
700 * kPointerMultiplier;
intptr_t OldGenerationAllocationLimit(intptr_t old_gen_size) {
- intptr_t limit;
- if (FLAG_stress_compaction) {
- limit = old_gen_size + old_gen_size / 10;
- } else if (old_gen_size < max_old_generation_size_ / 8) {
- if (max_old_generation_size_ <= kMaxOldSpaceSizeMediumMemoryDevice) {
- limit = old_gen_size * 2;
- } else {
- limit = old_gen_size * 4;
- }
- } else if (old_gen_size < max_old_generation_size_ / 4) {
- limit = static_cast<intptr_t>(old_gen_size * 1.5);
- } else if (old_gen_size < max_old_generation_size_ / 2) {
- limit = static_cast<intptr_t>(old_gen_size * 1.2);
- } else {
- limit = static_cast<intptr_t>(old_gen_size * 1.1);
- }
-
+ intptr_t limit = FLAG_stress_compaction
+ ? old_gen_size + old_gen_size / 10
+ : old_gen_size * old_space_growing_factor_;
limit = Max(limit, kMinimumOldGenerationAllocationLimit);
limit += new_space_.Capacity();
intptr_t halfway_to_the_max = (old_gen_size +
max_old_generation_size_) / 2;
@@ -1515,6 +1501,11 @@
intptr_t max_executable_size_;
intptr_t maximum_committed_;
+ // The old space growing factor is used in the old space heap growing
+ // strategy. The new old space size is the current old space size times
+ // old_space_growing_factor_.
+ int old_space_growing_factor_;
+
// For keeping track of how much data has survived
// scavenge since last new space expansion.
int survived_since_last_expansion_;
=======================================
--- /trunk/src/hydrogen-bce.cc Thu Jun 5 00:04:53 2014 UTC
+++ /trunk/src/hydrogen-bce.cc Tue Jun 17 06:48:55 2014 UTC
@@ -47,10 +47,7 @@
} else if (check->index()->IsSub()) {
HSub* index = HSub::cast(check->index());
is_sub = true;
- if (index->left()->IsConstant()) {
- constant = HConstant::cast(index->left());
- index_base = index->right();
- } else if (index->right()->IsConstant()) {
+ if (index->right()->IsConstant()) {
constant = HConstant::cast(index->right());
index_base = index->left();
}
=======================================
--- /trunk/src/hydrogen-gvn.cc Mon Jun 16 00:04:47 2014 UTC
+++ /trunk/src/hydrogen-gvn.cc Tue Jun 17 06:48:55 2014 UTC
@@ -466,7 +466,7 @@
bool SideEffectsTracker::ComputeInobjectField(HObjectAccess access,
int* index) {
for (int i = 0; i < num_inobject_fields_; ++i) {
- if (access.SameField(inobject_fields_[i])) {
+ if (access.Equals(inobject_fields_[i])) {
*index = i;
return true;
}
=======================================
--- /trunk/src/hydrogen-instructions.h Mon Jun 16 00:04:47 2014 UTC
+++ /trunk/src/hydrogen-instructions.h Tue Jun 17 06:48:55 2014 UTC
@@ -6202,14 +6202,7 @@
void PrintTo(StringStream* stream) const;
inline bool Equals(HObjectAccess that) const {
- return value_ == that.value_;
- }
-
- // Returns true if |this| access refers to the same field as |that|,
which
- // means that both have same |offset| and |portion| values.
- inline bool SameField(HObjectAccess that) const {
- uint32_t mask = PortionField::kMask | OffsetField::kMask;
- return (value_ & mask) == (that.value_ & mask);
+ return value_ == that.value_; // portion and offset must match
}
protected:
=======================================
--- /trunk/src/version.cc Mon Jun 16 11:36:14 2014 UTC
+++ /trunk/src/version.cc Tue Jun 17 06:48:55 2014 UTC
@@ -34,7 +34,7 @@
// system so their names cannot be changed without changing the scripts.
#define MAJOR_VERSION 3
#define MINOR_VERSION 27
-#define BUILD_NUMBER 31
+#define BUILD_NUMBER 32
#define PATCH_LEVEL 0
// Use 1 for candidates and 0 otherwise.
// (Boolean macro values are not supported by all preprocessors.)
--
--
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