The current profiling mode (called kLeafNodeLineNumbers in this CL)
produces a tree, with each node representing a stack frame that is seen
in one or more samples taken during profiling. These nodes refer to a
particular function in a stack trace, but not to a particular line or
callsite within that function.
This CL adds a new more (called kCallerLineNumbers) which produces a
different profile tree, where each stack trace seen during profiling,
including the line number, has a unique path in the tree.
The profile tree was previously keyed on CodeEntry*. Now it is keyed on
the pair of CodeEntry* and line_number, meaning it has distinct nodes
for those combinations which exist, and each distinct stack trace that
was sampled is represented in the tree.
For optimized code where we have inline frames, there are no line
numbers for the inline frames in the stack trace, causing duplicate
branches in the tree with kNoLineNumberInfo as the reported line number.
This will be addressed in follow-ups.
Bug: v8:7018
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I512e221508f5b50ec028306d212263b514a9fb24
Reviewed-on: https://chromium-review.googlesource.com/1013493
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53298}
The TC39 committee reached consensus to rename `flatten` to `flat`
during the May 22nd meeting. The corresponding patch to the proposal
is here:
093eacc7fe
Bug: v8:7220
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ie8049ae4d4589a4ae7fe3d203053cef798c135e4
Reviewed-on: https://chromium-review.googlesource.com/1069467
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53294}
Replaces the anchor page circular doubly linked list
with a doubly linked list pointing to nullptr on its ends.
Fixes a memory leak when rewinding pages.
The large pages list will move to the new list implementation
in a follow-up CL.
Change-Id: I2933a5e222d4ca768f4b555c47ed0d7a7027aa73
Reviewed-on: https://chromium-review.googlesource.com/1060973
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53288}
If it points to a new space object which doesn't get scavenged, we need to drop
the reference.
BUG=v8:7308, v8:7768
Change-Id: I4485a7abcac3a26781811cc9bf134fd80e5f35b5
Reviewed-on: https://chromium-review.googlesource.com/1069127
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53287}
This CL adds grammar support for function pointers to generic builtins.
It also instantiates generic specializations when they are only used
in an assignment to a function pointer.
Example:
builtin GenericBuiltinTest<T: type>(c: Context, param: T): Object {
return Null;
}
let fnptr: builtin(Context, Smi) => Object = GenericBuiltinTest<Smi>;
Change-Id: Ib7e5f47ffc05f14eb5d0b789936587263dfb961d
Reviewed-on: https://chromium-review.googlesource.com/1068731
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53284}
This CL adds a benchmark where the array to sort undergoes
multiple element kind transitions before it is sorted.
R=jgruber@chromium.org
Bug: v8:7382
Change-Id: I5196a33139a5f3b833719c2a111dc9a521bdb37c
Reviewed-on: https://chromium-review.googlesource.com/1066012
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53283}
We already had to introduce TypeAlias to allow types to be const.
With TypeAlias, there is no need for types to be declarable themselves.
Change-Id: Ia718482f6c121b5316aca819368e6d048283e5e8
Reviewed-on: https://chromium-review.googlesource.com/1068734
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53282}
The wrappers for imports are not accessible through the code() accessor,
so avoid tracing them for now.
BUG=chromium:844745
R=ahaas@chromium.org
Change-Id: I63fe447091ba3c202e3ffcfddfa645049a0b83cf
Reviewed-on: https://chromium-review.googlesource.com/1068739
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53280}
This map is often quite small and holds small items (ints) so wastes
quite a bit of overhead in the backing tree representation.
This CL changes the std::map to a sorted vector of pairs. This reduces
the size significantly (2.13 MiB -> 598 KiB on the node server example).
Bug: v8:7719
Change-Id: Ic829693f007732ae145fae02850a1ed913cd941e
Reviewed-on: https://chromium-review.googlesource.com/1064233
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53278}
This migrates test configs for all remaining trybots.
All migrated builders are not on CQ, hence, they don't run regularly.
Therefore, some shard configs are too low by now and are also upgraded
in this CL to match their CI counterparts.
This also sets the --gc-stress flag for all tests on gc stress builders
explicitly, since the infra-side configuration (which sets it per
builder) will be deleted soon.
NOTRY=true
Bug: chromium:830557
Change-Id: Id8a9505fcd2c848ec659c7401cbbe9224feaf5d2
Reviewed-on: https://chromium-review.googlesource.com/1065674
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53275}
ToDirectStringAssembler::PointerToData returns a raw pointer, which
is invalidated when GC moves the original string and hence must not
be accessed after any allocations. This fixes the bug introduced in
b4ebbc57a9 / r53260.
Bug: chromium:845060
Tbr: jgruber@chromium.org
Change-Id: I248d0dd2a275bf9308269b3f65d00c4c4c3d4292
Reviewed-on: https://chromium-review.googlesource.com/1068213
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53272}
The ECMAScript ⊃ JSON proposal doesn’t affect LineContinuation
grammar. These tests verify that the behavior remains the same when
the --harmony-subsume-json feature flag is enabled.
Bug: v8:7418
Change-Id: Iec5cb1bc112f278481ba1202f0c2b8693917843a
Reviewed-on: https://chromium-review.googlesource.com/1067463
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53270}
It seems that the output on snapshot failure has changed, so failed
snapshots were no longer being automatically re-run in gdb.
Change-Id: I321a6055b5683db31d215b9c30827f4badca3df7
Reviewed-on: https://chromium-review.googlesource.com/1066058
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53269}
This is not web compatible, so let's delete the code.
Bug: v8:5536
Change-Id: I50506d37dcdff1f7f95577c47adcec653cc1f06e
Reviewed-on: https://chromium-review.googlesource.com/1064740
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53264}
For AArch64, clean correctly the pools when the compilation is aborted
Bug: v8:6600
Change-Id: I4bacdbeae49290ece0ce1bf47319bf7076fec37c
Reviewed-on: https://chromium-review.googlesource.com/1066151
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53263}
This requires changing the way stubs and builtins are encoded in tags, as for
arm64 we only have 26 bits to encode a PC-relative offset. With the previous
encoding scheme the builtin ids were shifted by 16 bits and ended up exceeding
this range.
Change-Id: I0f396390a622ea67b890d2dd47ca12e00092e204
Reviewed-on: https://chromium-review.googlesource.com/1059209
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53262}
Command-line flags can be parsed in two modes. In the mode used by
Chrome, an unrecognized flag causes the remaining arguments to be
ignored. This is different from how d8 parses flags.
Example:
1) d8 --enable-slow-asserts --trace-ic
2) content_shell --js-flags='--enable-slow-asserts --trace-ic'
Assuming we compiled without ENABLE_SLOW_DCHECKS, in (1) we get a
warning that --enable-slow-asserts is unknown. Nevertheless,
--trace-ic will be enabled. In (2), we get an error that
--enable-slow-asserts is unknown but --trace-ic will NOT be enabled
(and neither does content_shell abort).
This inconsistency is obviously very confusing. With this CL, we
will at least print any flags that got ignored.
Change-Id: I22bdb06d2b0accc234b3f5d596458809de364bce
Reviewed-on: https://chromium-review.googlesource.com/1066010
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53261}
Optimize String.p.split for the case when the separator is empty and
the subject is a direct one-byte string.
Bug: v8:7103
Change-Id: Ica277d2c426679a1f77a1ef8ecb523bd596f65fb
Reviewed-on: https://chromium-review.googlesource.com/1045950
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53260}
Shortcuts e and c select (and make visible) the next effect/control
node downwards in the chain; ALT+e/c moves upward.
Additionally, the graph bounding box is redetermined every time the
graph is redrawn (instead of only when relayouted).
Bug: v8:7327
Change-Id: If01b16fc25273703e25e429bdc36753a2fa87f7c
Reviewed-on: https://chromium-review.googlesource.com/1064210
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53259}
This also includes the precise reducer name. Currently the information
is available in the node tooltip in turbolizer. The new shortcut 's' in
the graph view selects the nodes the currently selected nodes were created
from.
Bug: v8:7327
Change-Id: I7ca7327d0cfa112972e3567df6e4a223c8eff3c0
Reviewed-on: https://chromium-review.googlesource.com/1064059
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53258}
When processing imports of an instance, we were storing pointers to
exported (and re-imported) wasm functions in the code table of the
importing module. This is dangerous since imports are instance specific.
Avoid ever storing call targets for imports in the NativeModule.
Instead, read the call targets from the imports table of the instance.
R=mstarzinger@chromium.org
Bug: chromium:843563
Change-Id: Id9f43a6c127025a5feaa81b2be75c001bc0bea81
Reviewed-on: https://chromium-review.googlesource.com/1065774
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53256}
The js-to-wasm wrappers are shared across instances, so we cannot
directly call the instance-specific wasm-to-js wrappers. Instead, we
need to call via the import table.
R=titzer@chromium.org
Bug: chromium:843563
Change-Id: Ia882604f6769472fe2eb69176cbed728215ced29
Reviewed-on: https://chromium-review.googlesource.com/1064610
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53254}
ICU 61.1 was released in late March with CLDR 33.
Arabic number format change in CLDR 33 requires
a small adjustment in the test result.
See https://chromium-review.googlesource.com/c/chromium/deps/icu/+/1041578
for details on ICU 61.1.
NOTREECHECKS=true
Bug: chromium:838383, chromium:843073
Test: test262/intl402/*, intl/*
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I3778423b7dc67891767c95ea503e003013ae5b69
Reviewed-on: https://chromium-review.googlesource.com/1038230
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53251}
