We managed to access the scope_ member of CompilationInfo before its
containing object was actually constructed.
Rule of thumb: When constructing an object, never ever pass around
pointers to members which come later in the member initializer list,
you simply can't see locally if this might cause trouble or not.
Review URL: https://codereview.chromium.org/796363002
Cr-Commit-Position: refs/heads/master@{#25796}
Avoid explicitly branching to the false label on unordered when the condition
on the true branch will not catch the unordered case and let the code fall
through.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/794203003
Cr-Commit-Position: refs/heads/master@{#25787}
This allows the setting to be overridable by embedders,
at the cost of forcing embedders that don't build v8
using standalone.gypi to add this setting to their build
config.
BUG=chromium:421063
LOG=Y
Review URL: https://codereview.chromium.org/794583002
Cr-Commit-Position: refs/heads/master@{#25781}
It could happen that we shrink a live object on the main thread (e.g.
MigrateFastToSlow) while we're sweeping the same page. The main
thread first creates a filler object that the release-stores the new
map. Therefore it's important to barrier load the map word of live
objects from the sweeper thread.
BUG=none
R=ulan@chromium.org,hpayer@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/797623002
Cr-Commit-Position: refs/heads/master@{#25780}
Rolling v8/buildtools/clang_format/script to 81edd558fea5dd7855d67a1dc61db34ae8c1fd63
Rolling v8/buildtools to 05dd6a24723170d7c6ff35b537ee02947f619891
TBR=machenbach@chromium.org
Review URL: https://codereview.chromium.org/797613002
Cr-Commit-Position: refs/heads/master@{#25779}
To make space in the type bitset, remove Function, RegExp, and Buffer
types for now, since they aren't really relied upon anyway.
R=bmeurer@chromium.org
BUG=
Review URL: https://codereview.chromium.org/795993002
Cr-Commit-Position: refs/heads/master@{#25776}
The instruction selector now selects pseudo instructions: CompareAndBranch or
TestAndBranch which are associated with their continuations so that generic
code in the code generator will treat them as branch instruction and will be
able to apply optimization like avoiding branches when the code can falltrhough.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/798553002
Cr-Commit-Position: refs/heads/master@{#25773}
V8 didn't report compile events on pause before this patch. These events can be important for listener. For example, DevTools allows user to execute some JS code on pause and needs to show correct stack trace in message from it.
BUG=396013
R=yurys@chromium.org
Review URL: https://codereview.chromium.org/781623004
Cr-Commit-Position: refs/heads/master@{#25767}
This completes the first round of optimizations for Map and Set.
All non-key-dependent methods now have a Hydrogen version, and
for keyed methods, string versions are optimized.
Review URL: https://codereview.chromium.org/796503002
Cr-Commit-Position: refs/heads/master@{#25763}
They both now run fast (due to utilizing transitions instead of always
creating new maps) and sealed or non-extensible objects can stay in
fast mode after transitioning.
This almost entirely reuses the code for transitioning objects
frozen by Object.freeze(), with the added benefit of freeing
up a bit on the map (we no longer keep track of frozen-ness,
as that bit wasn't used for anything interesting).
BUG=v8:3662,chromium:115960
LOG=y
Review URL: https://codereview.chromium.org/776143005
Cr-Commit-Position: refs/heads/master@{#25759}
Reason for revert:
For breaking the waterfall (run-json-stringify test).
Original issue's description:
> Avoid number range holes in bitset types.
>
> BUG=
TBR=rossberg@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/794663002
Cr-Commit-Position: refs/heads/master@{#25756}
This makes tests runnable with the external snapshot, and should be the
last step before enabling external snapshot on >=1 bots.
R=yangguo
BUG=
Review URL: https://codereview.chromium.org/780333004
Cr-Commit-Position: refs/heads/master@{#25753}
