Reviewers: Toon Verwaest,
Description:
Merged r20127 into 3.24 branch.
Fix for performance issue 353661 - 23% regression in dromaeo.
BUG=353661
LOG=N
[email protected]
Please review this at https://codereview.chromium.org/222103004/
SVN Base: https://v8.googlecode.com/svn/branches/3.24
Affected files (+3, -2 lines):
M src/ic.cc
M src/version.cc
Index: src/ic.cc
diff --git a/src/ic.cc b/src/ic.cc
index
1e7997a80ddf6632633908c1e36f847ea752ebff..15db6e9827b31769f0c85613f4f68ab3297fb0ac
100644
--- a/src/ic.cc
+++ b/src/ic.cc
@@ -1439,7 +1439,8 @@ Handle<Code>
KeyedStoreIC::StoreElementStub(Handle<JSObject> receiver,
if (IsTransitionStoreMode(store_mode)) {
transitioned_receiver_map = ComputeTransitionedMap(receiver,
store_mode);
}
- if (receiver_map.is_identical_to(previous_receiver_map) ||
+ if ((receiver_map.is_identical_to(previous_receiver_map) &&
+ IsTransitionStoreMode(store_mode)) ||
IsTransitionOfMonomorphicTarget(
MapToType<HeapType>(transitioned_receiver_map, isolate()))) {
// If the "old" and "new" maps are in the same elements map family,
or
Index: src/version.cc
diff --git a/src/version.cc b/src/version.cc
index
9ba044d5a6eaaacb4737416f7958ba739f8398e3..c7a76e41cb5f0fbde682f6c954eea40fd05b8d82
100644
--- a/src/version.cc
+++ b/src/version.cc
@@ -35,7 +35,7 @@
#define MAJOR_VERSION 3
#define MINOR_VERSION 24
#define BUILD_NUMBER 35
-#define PATCH_LEVEL 22
+#define PATCH_LEVEL 23
// Use 1 for candidates and 0 otherwise.
// (Boolean macro values are not supported by all preprocessors.)
#define IS_CANDIDATE_VERSION 0
--
--
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