Commit Graph

8797 Commits

Author SHA1 Message Date
Justin Ridgewell
cedec225c9 Implement DFA Unicode Decoder
This is a separation of the DFA Unicode Decoder from
https://chromium-review.googlesource.com/c/v8/v8/+/789560

I attempted to make the DFA's table a bit more explicit in this CL. Still, the
linter prevents me from letting me present the array as a "table" in source
code. For a better representation, please refer to
https://docs.google.com/spreadsheets/d/1L9STtkmWs-A7HdK5ZmZ-wPZ_VBjQ3-Jj_xN9c6_hLKA

- - - - -

Now for a big copy-paste from 789560:

Essentially, reworks a standard FSM (imagine an
array of structs) and flattens it out into a single-dimension array.
Using Table 3-7 of the Unicode 10.0.0 standard (page 126 of
http://www.unicode.org/versions/Unicode10.0.0/ch03.pdf), we can nicely
map all bytes into one of 12 character classes:

00. 0x00-0x7F
01. 0x80-0x8F (split from general continuation because this range is not
    valid after a 0xF0 leading byte)
02. 0x90-0x9F (split from general continuation because this range is not
    valid after a 0xE0 nor a 0xF4 leading byte)
03. 0xA0-0xBF (the rest of the continuation range)
04. 0xC0-0xC1, 0xF5-0xFF (the joined range of invalid bytes, notice this
    includes 255 which we use as a known bad byte during hex-to-int
        decoding)
05. 0xC2-0xDF (leading bytes which require any continuation byte
    afterwards)
06. 0xE0 (leading byte which requires a 0xA0-0xBF afterwards then any
    continuation byte after that)
07. 0xE1-0xEC, 0xEE-0xEF (leading bytes which requires any continuation
    afterwards then any continuation byte after that)
08. 0xED (leading byte which requires a 0x80-0x9F afterwards then any
    continuation byte after that)
09. 0xF1-F3 (leading bytes which requires any continuation byte
    afterwards then any continuation byte then any continuation byte)
10. 0xF0 (leading bytes which requires a 0x90-0xBF afterwards then any
    continuation byte then any continuation byte)
11. 0xF4 (leading bytes which requires a 0x80-0x8F afterwards then any
    continuation byte then any continuation byte)

Note that 0xF0 and 0xF1-0xF3 were swapped so that fewer bytes were
needed to represent the transition state ("9, 10, 10, 10" vs.
"10, 9, 9, 9").

Using these 12 classes as "transitions", we can map from one state to
the next. Each state is defined as some multiple of 12, so that we're
always starting at the 0th column of each row of the FSM. From each
state, we add the transition and get a index of the new row the FSM is
entering.

If at any point we encounter a bad byte, the state + bad-byte-transition
is guaranteed to map us into the first row of the FSM (which contains no
valid exiting transitions).

The key differences from Björn's original (or his self-modified) DFA is
the "bad" state is now mapped to 0 (or the first row of the FSM) instead
of 12 (the second row). This saves ~50 bytes when gzipping, and also
speeds up determining if a string is properly encoded (see his sample
code at http://bjoern.hoehrmann.de/utf-8/decoder/dfa/#performance).

Finally, I've replace his ternary check with an array access, to make
the algorithm branchless. This places a requirement on the caller to 0
out the code point between successful decodings, which it could always
have done because it's already branching.

R=marja@google.com

Bug: 
Change-Id: I574f208a84dc5d06caba17127b0d41f7ce1a3395
Reviewed-on: https://chromium-review.googlesource.com/805357
Commit-Queue: Justin Ridgewell <jridgewell@google.com>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50012}
2017-12-11 21:36:13 +00:00
Mathias Bynens
8b1e0c6480 [parser] Remove use counter for U+2028 & U+2029
The use counter was originally added in
d3c9812143
(https://chromium-review.googlesource.com/c/v8/v8/+/693155).

The CL that removes the plumbing in Chromium is here:
https://chromium-review.googlesource.com/c/chromium/src/+/819632

BUG=v8:6827

Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ie5f861fe2a64454e682d8cd0618c948642a32886
Reviewed-on: https://chromium-review.googlesource.com/819553
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50009}
2017-12-11 20:32:39 +00:00
Adam Klein
8e32805f5d [parsing] Make FuncNameInferrer handle extends clauses properly
Bug: v8:7069
Change-Id: I878ea42207013a76de859c96f3cb5e2d93aa7927
Reviewed-on: https://chromium-review.googlesource.com/803908
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Sathya Gunasekaran (ooo until 12/12) <gsathya@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50008}
2017-12-11 18:39:52 +00:00
Ulan Degenbaev
298f0cd438 [heap] Provide the number of native and detached context via Heap API.
This adds two fields to the HeapStatistics struct:
- number_of_native_contexts,
- number_of_detached_contexts.

Bug: chromium:793789
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: If6942a97fd22a9e70781eed2aa286aba4c0e7f70
Reviewed-on: https://chromium-review.googlesource.com/819730
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50007}
2017-12-11 18:14:31 +00:00
Michael Starzinger
542aa4b2f0 [simulator] De-dupe {CALL_GENERATED_CODE} macro definition.
R=clemensh@chromium.org

Change-Id: Ib7e625763f0e017fe4490fb87c4e90e8d57489fd
Reviewed-on: https://chromium-review.googlesource.com/817442
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50001}
2017-12-11 17:07:44 +00:00
Andreas Haas
943ccb9895 Revert "[turbofan] Implement on-stack returns (Intel)"
This reverts commit 1e49864fa7.

Reason for revert: Crashing test on the waterfall https://logs.chromium.org/v/?s=chromium%2Fbb%2Fclient.v8%2FV8_Linux_gcc_4.8%2F16871%2F%2B%2Frecipes%2Fsteps%2FCheck%2F0%2Flogs%2FReturnMultipleRandom%2F0

Original change's description:
> [turbofan] Implement on-stack returns (Intel)
> 
> Add the ability to return (multiple) return values on the stack:
> 
> - Extend stack frames with a new buffer region for return slots.
>   This region is located at the end of a caller's frame such that
>   its slots can be indexed as caller frame slots in a callee
>   (located beyond its parameters) and assigned return values.
> - Adjust stack frame constructon and deconstruction accordingly.
> - Extend linkage computation to support register plus stack returns.
> - Reserve return slots in caller frame when respective calls occur.
> - Introduce and generate architecture instructions ('peek') for
>   reading back results from return slots in the caller.
> - Aggressive tests.
> - Some minor clean-up.
> 
> So far, only ia32 and x64 are implemented.
> 
> Change-Id: I9532ad13aa307c1dec40548c5b84600fe2f762ce
> Reviewed-on: https://chromium-review.googlesource.com/766371
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49994}

TBR=titzer@chromium.org,rossberg@chromium.org,ahaas@chromium.org

Change-Id: Ib257e92448942f8ef07d5ef246f9381f4784f014
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/819637
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50000}
2017-12-11 16:54:57 +00:00
Andreas Haas
1e49864fa7 [turbofan] Implement on-stack returns (Intel)
Add the ability to return (multiple) return values on the stack:

- Extend stack frames with a new buffer region for return slots.
  This region is located at the end of a caller's frame such that
  its slots can be indexed as caller frame slots in a callee
  (located beyond its parameters) and assigned return values.
- Adjust stack frame constructon and deconstruction accordingly.
- Extend linkage computation to support register plus stack returns.
- Reserve return slots in caller frame when respective calls occur.
- Introduce and generate architecture instructions ('peek') for
  reading back results from return slots in the caller.
- Aggressive tests.
- Some minor clean-up.

So far, only ia32 and x64 are implemented.

Change-Id: I9532ad13aa307c1dec40548c5b84600fe2f762ce
Reviewed-on: https://chromium-review.googlesource.com/766371
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49994}
2017-12-11 14:26:09 +00:00
jing.bao
6ed2690e5c [ia32][wasm] Enable more SIMD tests on IA32
Implement IA32Movdqu
Add vmovdqu and Movdqu macro

Bug: 
Change-Id: Idc2b5c99adf38d6120ff451bde40d4ad8f2046de
Reviewed-on: https://chromium-review.googlesource.com/815944
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Jing Bao <jing.bao@intel.com>
Cr-Commit-Position: refs/heads/master@{#49981}
2017-12-11 02:28:06 +00:00
Caitlin Potter
84a71a585a [parser] classify binding pattern errors when parsing await expression
await expressions are an invalid destructuring target, and should
result in a SyntaxError when used in a position where a destructuring
target is expected.

BUG=v8:7173
R=marja@chromium.org, adamk@chromium.org

Change-Id: I1bdb4bc13cb2e3e904fc4389a6e0abca1e0ed17f
Reviewed-on: https://chromium-review.googlesource.com/811946
Reviewed-by: Sathya Gunasekaran (ooo until 12/12) <gsathya@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#49977}
2017-12-09 16:29:23 +00:00
Eric Holk
f3897c7e9e [wasm] cleanup after https://crrev.com/c/802322
Bug: v8:7143
Change-Id: Ie8eee40ba1761a5790dc67a8ce03d2b2cb949722
Reviewed-on: https://chromium-review.googlesource.com/815677
Commit-Queue: Eric Holk <eholk@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49975}
2017-12-09 00:55:04 +00:00
Sigurd Schneider
47a81f0bd2 Add speculation mode to Call node
This patch adds a field for the speculation mode to Call
nodes, and passes the speculation mode from the CallIC
to the Call node in the byte code graph builder.

Bug: v8:7127
Change-Id: I89fa10643b46143b36776de1d5ba6ebe3fa2c878
Reviewed-on: https://chromium-review.googlesource.com/814537
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49965}
2017-12-08 14:51:10 +00:00
Michael Lippautz
4c7f2d814f [heap] Minor MC: Pause concurrent marking
Bug: 
Change-Id: I4e105a3a09fe3b58255189bb89fa38224078ae5c
Reviewed-on: https://chromium-review.googlesource.com/817196
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49960}
2017-12-08 13:33:33 +00:00
Sigurd Schneider
7be22a8c62 Use bits of call count on CallIC as flags
This CL uses bits of the call count as flags according
to CallCountField and SpeculationModeField defined in
CallICNexus.

Bug: v8:7127
Change-Id: I3f64c1807d61410f9029b46b9a59a1fcaa5a0a3b
Reviewed-on: https://chromium-review.googlesource.com/808926
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49959}
2017-12-08 13:31:03 +00:00
Ulan Degenbaev
e91234c1a4 [heap] Correctly restore platform in IncrementalMarkingUsingTasks test.
Bug: 
Change-Id: I9003407826865f1befb0ea7de60aa9fce2766da7
Reviewed-on: https://chromium-review.googlesource.com/814675
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49955}
2017-12-08 10:39:12 +00:00
Mircea Trofin
1048a6b4ea [wasm] Fix wasm-jit-to-native + W^X GC heap interaction issues
- in certain cases, we need both modification scopes because we may
mutate JS functions, even in the jit-to-native case - e.g. JS-to-wasm
wrappers
- added handling for wasm-to-wasm wrappers in the context of lazy
compilation.

Bug: v8:7105
Change-Id: I085c14e03ef0b08d040998f2207abf7bc3fff01c
Reviewed-on: https://chromium-review.googlesource.com/811285
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49947}
2017-12-08 02:21:46 +00:00
Michael Lippautz
41f928282b [heap] Enable embedder heap tracing in combination with finalizers
Bug: v8:7176
Change-Id: I83d68a7e792b656d9f40a142b5403ac98c4f44c4
Reviewed-on: https://chromium-review.googlesource.com/814116
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49936}
2017-12-07 15:01:28 +00:00
Michael Lippautz
2abbc50c6e [heap] Increase test coverage for embedder tracing
The tests illustrate the use of v8::EmbedderHeapTracer.

Bug: v8:7176
Change-Id: Ic383c968691fddb0ec96d66cb33ee42b9c304a75
Reviewed-on: https://chromium-review.googlesource.com/811924
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49934}
2017-12-07 14:11:51 +00:00
Michael Starzinger
d884663f7e [test] Switch cctest to be W^X compliant as well.
R=clemensh@chromium.org
BUG=v8:6792

Change-Id: Ia2567112ab86f42729337e539f9aaa1719d9a39f
Reviewed-on: https://chromium-review.googlesource.com/811305
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49929}
2017-12-07 13:04:23 +00:00
Igor Sheludko
7a159da151 [runtime] Cleanup Map fields and bit fields definitions.
Bug: v8:7109
Change-Id: I9766d28998fca49b0d3e6dc9aca3cc19f0b42124
Reviewed-on: https://chromium-review.googlesource.com/809244
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49925}
2017-12-07 11:55:56 +00:00
Michael Achenbach
d6fe8479ba [test] Skip flaky tests in minor_mc variant
TBR=mlippautz@chromium.org
NOTRY=true

Change-Id: I01fc2f77bb7df0b9ef7355c9910ca6d7423e46ca
Reviewed-on: https://chromium-review.googlesource.com/813614
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49918}
2017-12-07 07:38:25 +00:00
jing.bao
2995a890ac [ia32][wasm] Add F32x4 Eq/Ne/Lt/Le
Bug: 
Change-Id: I68e3f62612d9e6e7c915931c1c6f810d59df31eb
Reviewed-on: https://chromium-review.googlesource.com/810524
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Jing Bao <jing.bao@intel.com>
Cr-Commit-Position: refs/heads/master@{#49916}
2017-12-07 01:48:15 +00:00
Karl Schimpf
0d5de9ad9b [wasm] First step of refactoring trap handling to be per module.
The previous code assumed that trap handling was a global concept, defined
by function trap_handler::UseTrapHandler(). This CL does the first step
in changing the decision to be specifiable at a module level.

Therefore trap_handler::UseTrapHandler() is replaced by
trap_handler::IsTrapHandlerEnabled(), and communicates if compilation
supports the use of trap handlers (but still allowing the use of
bounds checking on memory accesses).

It then refactors the classes ModuleEnv and WasmCompiledModule to have
a field "use_trap_handler" that specifies if traps should be used for
the memory accesses in the module being compiled.

Bug: v8:7143
Change-Id: I9844842d5721c86c2dd55e911b42bf8b9922cf63
Reviewed-on: https://chromium-review.googlesource.com/802322
Commit-Queue: Eric Holk <eholk@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49915}
2017-12-07 01:00:55 +00:00
Alexei Filippov
14ac02c49c [cpu-profiler] Clear code entries when no observers are present.
Performed manual testing as well by making 20 CPU profile recordings of
loading http://meduza.io page. Without the patch the page renderer memory size
grows beyond 300MB. With the patch it remains below 200MB.

BUG=v8:6623

Change-Id: Ifce541b84bb2aaaa5175520f8dd49dbc0cb5dd20
Reviewed-on: https://chromium-review.googlesource.com/798020
Commit-Queue: Alexei Filippov <alph@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49914}
2017-12-06 22:58:05 +00:00
Clemens Hammacher
b1e725791c [wasm] Make trace flags read only in release builds
This saves us 14.2kB binary size in libv8.so (in release mode), and
probably also improves performance a little bit.

R=titzer@chromium.org

Bug: v8:7109
Change-Id: I345a48369aaf054572a4fd4368bf5cd526ed146a
Reviewed-on: https://chromium-review.googlesource.com/797270
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49905}
2017-12-06 16:49:26 +00:00
Ulan Degenbaev
ac5b4223ad [heap] Add regression test for 791582.
Bug: chromium:791582
Change-Id: Ic2b4289431a4bd7b4b5a37437d25ebccd493497a
Reviewed-on: https://chromium-review.googlesource.com/809130
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49903}
2017-12-06 16:19:26 +00:00
Clemens Hammacher
61493f5bdd [wasm] Add test case for narrowing store
When implementing Liftoff I realized that these are not tested at all
in our cctests.

R=ahaas@chromium.org

Bug: v8:6600
Change-Id: I9f4da9bb93580f556bc67ebe8b79427373e656ba
Reviewed-on: https://chromium-review.googlesource.com/808385
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49894}
2017-12-06 13:27:39 +00:00
jing.bao
3cc75409ce [ia32][wasm] Add F32x4 Splat/ExtractLane/ReplaceLane.
Add vshufps, vmovaps, insertps/vinsertps

Bug: 
Change-Id: I178cde529b5309a5221086ab916e5485a8b67d5a
Reviewed-on: https://chromium-review.googlesource.com/802999
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Jing Bao <jing.bao@intel.com>
Cr-Commit-Position: refs/heads/master@{#49880}
2017-12-06 02:55:26 +00:00
Mircea Trofin
355e2f0888 [wasm] s/wasm-heap/wasm-code-manager
Rename to better capture what the files contain.

Removed includes of wasm-code-manager.h from .h files to improve
build time.

Bug: 
Change-Id: I0f0108cfb00b061c4433b6ff9670e9c4cae9c699
Reviewed-on: https://chromium-review.googlesource.com/807368
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49875}
2017-12-05 16:30:06 +00:00
Martyn Capewell
b6c334d568 [arm64] Fix cctests that require unaligned sp
Fix cctests to maintain an aligned stack pointer, and delete a couple
that don't make sense if only an aligned stack pointer is allowed.

Bug: v8:6644
Change-Id: Ib825df0f93515ec408169018eb97ab587f1f14b6
Reviewed-on: https://chromium-review.googlesource.com/808386
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#49866}
2017-12-05 14:00:51 +00:00
Eric Holk
5fb4b176fa [wasm] Move wasm objects from Isolate to new WasmEngine object
This is a small refactoring that moves the WasmCodeManager and
CompilationManager from being a part of the Isolate directly to living in a new
WasmEngine object. This makes it easier to change Wasm components without
rebuilding so much of V8, and also enables future changes to Wasm without
affecting unrelated parts of V8.

Bug: v8:7109
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ic89bfc3974483aa909d12556d1386e18785a1d71
Reviewed-on: https://chromium-review.googlesource.com/804824
Commit-Queue: Eric Holk <eholk@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49848}
2017-12-05 01:32:21 +00:00
Mircea Trofin
e4c97c8249 [wasm] W^X mechanism for WasmCodeManager.
This enables the invariant that a NativeModule's code may either be
executable or writable, but never both at the same time.

Bug: v8:7105
Change-Id: If2abfce6796a365bb675a82140f32e8f45bb923f
Reviewed-on: https://chromium-review.googlesource.com/804208
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49840}
2017-12-04 17:22:31 +00:00
Georgia Kouveli
74d339e1dc [cctest] Small refactoring of code generator tests.
This is to avoid calling AssembleTailCallBeforeGap and AssembleTailCallAfterGap
directly where possible (so making the tests less dependent on the code generator
interface when we're not directly testing it). It also makes sure that the
instruction we pass to AssembleTailCallBeforeGap and AssembleTailCallAfterGap is
indeed a tail call, with the immediate argument that specifies the stack delta.

This is to prepare for padding arguments for arm64 JSSP removal. We will need to
store padding in AssembleTailCallAfterGap, which will need the information from
a TailCall instruction.

Bug: v8:6644
Change-Id: Ia5485412a4244c7b2a133aa0541b9f8285680de4
Reviewed-on: https://chromium-review.googlesource.com/806117
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/master@{#49833}
2017-12-04 15:53:38 +00:00
Michal Majewski
68c5d01ad6 Reland "Reland "[test] Creating command before execution phase.""
This is a reland of 3b06511052
Original change's description:
> Reland "[test] Creating command before execution phase."
> 
> This is a reland of 98cc9e862f
> Original change's description:
> > [test] Creating command before execution phase.
> > 
> > Immutable command class with shell, flags and
> > environment.
> > 
> > Command creation moved from worker to the main
> > process. Because of that there is no need to send
> > test cases beyond process boundaries and load test
> > suites in worker processes.
> > 
> > Bug: v8:6917
> > Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> > Reviewed-on: https://chromium-review.googlesource.com/791710
> > Commit-Queue: Michał Majewski <majeski@google.com>
> > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#49746}
> 
> Bug: v8:6917
> Change-Id: I49c29a8db813c47909f2cc45070ac7721a447c7a
> Reviewed-on: https://chromium-review.googlesource.com/800370
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Michał Majewski <majeski@google.com>
> Cr-Commit-Position: refs/heads/master@{#49756}

Bug: v8:6917
Change-Id: Ia39010a0a0f63537ad12490dfab17897d70d4930
Reviewed-on: https://chromium-review.googlesource.com/806034
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#49830}
2017-12-04 13:40:29 +00:00
Georg Neis
fb54e570e1 Enable clang's -Wunreachable-code warning.
The motivation is to avoid bugs such as the one fixed in
https://chromium-review.googlesource.com/c/v8/v8/+/800270.

Bug: v8:7109
Change-Id: I82a55f4a78d289d00ae7bafe78b45d92bab07a6b
Reviewed-on: https://chromium-review.googlesource.com/800291
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49829}
2017-12-04 13:09:25 +00:00
Camillo Bruni
5275c3c41c [api] Mark SetNamedPropertyHandler as soon to be deprecated
Eventually we should migrate to new new-style callbacks which take Names
instead of Strings as first arguments everywhere. Internally we don't really
handler NamedPropertyCallbackXX differently from the newer
GenericNamedPropertyCallbackXX.

Bug: v8:7109
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I827182f447427c222d5144f1a3e27bf543226e51
Reviewed-on: https://chromium-review.googlesource.com/803340
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49824}
2017-12-04 11:06:50 +00:00
Mathias Bynens
822be9b238 Normalize casing of hexadecimal digits
This patch normalizes the casing of hexadecimal digits in escape
sequences of the form `\xNN` and integer literals of the form
`0xNNNN`.

Previously, the V8 code base used an inconsistent mixture of uppercase
and lowercase.

Google’s C++ style guide uses uppercase in its examples:
https://google.github.io/styleguide/cppguide.html#Non-ASCII_Characters

Moreover, uppercase letters more clearly stand out from the lowercase
`x` (or `u`) characters at the start, as well as lowercase letters
elsewhere in strings.

BUG=v8:7109
TBR=marja@chromium.org,titzer@chromium.org,mtrofin@chromium.org,mstarzinger@chromium.org,rossberg@chromium.org,yangguo@chromium.org,mlippautz@chromium.org
NOPRESUBMIT=true

Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I790e21c25d96ad5d95c8229724eb45d2aa9e22d6
Reviewed-on: https://chromium-review.googlesource.com/804294
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49810}
2017-12-02 01:24:40 +00:00
Deepti Gandluri
ec8e7e65b0 [wasm] Add Atomic Load, Store Ops to the interpreter
Bug: v8:6532
Change-Id: I2ae9c2a2d2b6a02826a50cd150cb8008841f55e4
Reviewed-on: https://chromium-review.googlesource.com/804212
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Reviewed-by: Ben Smith <binji@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49807}
2017-12-01 23:03:02 +00:00
Michael Achenbach
d3a8dec257 Revert "Reland "[test] Creating command before execution phase.""
This reverts commit 3b06511052.

Reason for revert: Broke fuzzers:
https://build.chromium.org/p/client.v8.clusterfuzz/builders/V8%20Deopt%20Fuzzer/builds/384

Original change's description:
> Reland "[test] Creating command before execution phase."
> 
> This is a reland of 98cc9e862f
> Original change's description:
> > [test] Creating command before execution phase.
> > 
> > Immutable command class with shell, flags and
> > environment.
> > 
> > Command creation moved from worker to the main
> > process. Because of that there is no need to send
> > test cases beyond process boundaries and load test
> > suites in worker processes.
> > 
> > Bug: v8:6917
> > Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> > Reviewed-on: https://chromium-review.googlesource.com/791710
> > Commit-Queue: Michał Majewski <majeski@google.com>
> > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#49746}
> 
> Bug: v8:6917
> Change-Id: I49c29a8db813c47909f2cc45070ac7721a447c7a
> Reviewed-on: https://chromium-review.googlesource.com/800370
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Michał Majewski <majeski@google.com>
> Cr-Commit-Position: refs/heads/master@{#49756}

TBR=machenbach@chromium.org,sergiyb@chromium.org,majeski@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:6917
Change-Id: I4938642c4396366be1e13daf6998c4b8538b688b
Reviewed-on: https://chromium-review.googlesource.com/804254
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49805}
2017-12-01 20:44:50 +00:00
Mircea Trofin
e0447f9972 [wasm] Flush the instruction cache on the WasmCodeManager
Flush the icache after JIT-ing using the WasmCodeManager. Also, re-enable
tests that were previously failing on Linux ARM.

Bug: v8:7138
Change-Id: I8e18b80dba58df173a2360f8ac365ee5daaf3239
Reviewed-on: https://chromium-review.googlesource.com/802961
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49800}
2017-12-01 16:53:37 +00:00
Mathias Bynens
2b14a3f7fe Avoid octal escape sequences
Hexadecimal escape sequences of the form `\xNN` are more readable
in the context of byte values, and are preferred per Google’s C++
style guide.

https://google.github.io/styleguide/cppguide.html#Non-ASCII_Characters

BUG=v8:7109

Change-Id: I6821ccb804388d99e5601e92fc392afdf496691e
Reviewed-on: https://chromium-review.googlesource.com/803057
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49799}
2017-12-01 15:08:14 +00:00
Clemens Hammacher
7cede115e7 [cleanup] Replace V8_INT64_C macro by proper C++11 syntax
Some uses use uint64_t instead of int64_t to avoid compiler warnings
about illegal narrowing of values with the MSB set.

R=tebbi@chromium.org,mlippautz@chromium.org

Bug: v8:7109
Change-Id: I6e861f48828bd931c451ef336672a260c13ae042
Reviewed-on: https://chromium-review.googlesource.com/803275
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49797}
2017-12-01 14:49:28 +00:00
Mythri
dae20b0df6 Reland "Add support to produce code cache after execute"
Adds new API function to request code cache. Earlier code cache was
produced along with compile requests. This new API allows us to request
code cache after executing. Also adds support in the code serializer to
serialize after executing the script.

Bug: chromium:783124,chromium:789694
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Id4e6a967e176e3e979dc4ccb9a37a353c70c3890
Reviewed-on: https://chromium-review.googlesource.com/797036
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49793}
2017-12-01 14:02:47 +00:00
Clemens Hammacher
413129be4a [cleanup] Replace V8_UINT64_C macro by proper C++11 syntax
V8_INT64_C will be cleaned up in a follow-up CL.

R=tebbi@chromium.org,mlippautz@chromium.org

Bug: v8:7109
Change-Id: I6af97e7266039eb443896b404b77b8e2b5de5adb
Reviewed-on: https://chromium-review.googlesource.com/803294
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49790}
2017-12-01 13:13:37 +00:00
jing.bao
6f52d980b4 [ia32][wasm] Add S128 Zero/Not/And/Or/Xor
Bug: 
Change-Id: I0868da7ee73f1c7637d9c79b6c78f27557cd14a4
Reviewed-on: https://chromium-review.googlesource.com/792653
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Jing Bao <jing.bao@intel.com>
Cr-Commit-Position: refs/heads/master@{#49774}
2017-12-01 02:15:14 +00:00
Michael Achenbach
fc50e2c4c9 Revert "[objects] No longer create short external strings."
This reverts commit e42e7fc800.

Reason for revert: Speculative revert for:
https://crbug.com/v8/7149

Original change's description:
> [objects] No longer create short external strings.
> 
> This fixes String::MakeExternal() to bail out if the subject string
> doesn't fit a regular ExternalString, instead of creating a short
> external string. The observation here is that for short external strings
> the overhead of having to have the StringResource plus going to the
> runtime/C++ for each and every character access from JavaScript land
> is probably bigger than the anticipated benefits.
> 
> If this turns out to be wrong and there's a real benefit, we should make
> use of ThinStrings instead of having a separate way to represent
> external strings.
> 
> Bug: v8:6621, v8:7109, v8:7145
> Change-Id: I4b75da08b82a72027c782a69de9c8eaf3cca1d4d
> Reviewed-on: https://chromium-review.googlesource.com/799750
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49735}

TBR=yangguo@chromium.org,bmeurer@chromium.org

Change-Id: I3f5cfa9ab5c99ddce1d61ede9ed9515cb3936cdd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6621, v8:7109, v8:7145, v8:7149
Reviewed-on: https://chromium-review.googlesource.com/801675
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49770}
2017-11-30 20:04:41 +00:00
Camillo Bruni
1385b092e8 [log] Support first function execution logging with --log-function-events
Bug: chromium:757467
Change-Id: I52f8100e0c8b4ac07e1f875e44cb468fa8ce572b
Reviewed-on: https://chromium-review.googlesource.com/793611
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49764}
2017-11-30 16:38:59 +00:00
Ali Ijaz Sheikh
6331766224 [heap] Add missing steps for Add/Remove observers (reland^2)
(Previously landed as #48513 / e770879eee)
(Previously landed as #48606 / d0e3fb4f2e)

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Bug: 
Change-Id: I302fb52fb47b6c9d59dd2b28eb9923c37881c15b
Reviewed-on: https://chromium-review.googlesource.com/794857
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ali Ijaz Sheikh <ofrobots@google.com>
Cr-Commit-Position: refs/heads/master@{#49763}
2017-11-30 16:35:14 +00:00
Michal Majewski
3b06511052 Reland "[test] Creating command before execution phase."
This is a reland of 98cc9e862f
Original change's description:
> [test] Creating command before execution phase.
> 
> Immutable command class with shell, flags and
> environment.
> 
> Command creation moved from worker to the main
> process. Because of that there is no need to send
> test cases beyond process boundaries and load test
> suites in worker processes.
> 
> Bug: v8:6917
> Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> Reviewed-on: https://chromium-review.googlesource.com/791710
> Commit-Queue: Michał Majewski <majeski@google.com>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49746}

Bug: v8:6917
Change-Id: I49c29a8db813c47909f2cc45070ac7721a447c7a
Reviewed-on: https://chromium-review.googlesource.com/800370
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#49756}
2017-11-30 13:47:40 +00:00
Michael Achenbach
d8b369d2be Revert "[test] Creating command before execution phase."
This reverts commit 98cc9e862f.

Reason for revert: Breaks test isolation:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20builder/builds/29746

Original change's description:
> [test] Creating command before execution phase.
> 
> Immutable command class with shell, flags and
> environment.
> 
> Command creation moved from worker to the main
> process. Because of that there is no need to send
> test cases beyond process boundaries and load test
> suites in worker processes.
> 
> Bug: v8:6917
> Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
> Reviewed-on: https://chromium-review.googlesource.com/791710
> Commit-Queue: Michał Majewski <majeski@google.com>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49746}

TBR=machenbach@chromium.org,sergiyb@chromium.org,majeski@google.com

Change-Id: I44b99468d18fd093833f4185dad067a9eeaf2bc1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6917
Reviewed-on: https://chromium-review.googlesource.com/800292
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49747}
2017-11-30 12:32:31 +00:00
Michal Majewski
98cc9e862f [test] Creating command before execution phase.
Immutable command class with shell, flags and
environment.

Command creation moved from worker to the main
process. Because of that there is no need to send
test cases beyond process boundaries and load test
suites in worker processes.

Bug: v8:6917
Change-Id: Ib6a44278095b4f7141eb9b96802fe3e8117678a6
Reviewed-on: https://chromium-review.googlesource.com/791710
Commit-Queue: Michał Majewski <majeski@google.com>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49746}
2017-11-30 12:30:09 +00:00