Commit Graph

400 Commits

Author SHA1 Message Date
Paolo Severini
0b300d4b3d Reland "Generate unwind info on Win/x64 by default"
The original CL title was updated to reflect CL contents. The
--win64-unwinding-info flag still exists but it is set by default.

This is a reland of efd8c2d975

Original change's description:
> Remove --win64-unwinding-info flag and always generate unwind info on Win/x64
>
> The generation of unwind info to enable stack walking on Windows/x64
> (https://chromium-review.googlesource.com/c/v8/v8/+/1469329) was implemented
> behind a temporary flag, in order to coordinate these changes with the
> corresponding changes in Chromium.
>
> The required changes to Chromium
> (https://chromium-review.googlesource.com/c/chromium/src/+/1474703) have also
> been merged, so we can now remove the flag and enable the generation of stack
> unwinding info by default on Windows/x64.
>
> Bug: v8:3598
> Change-Id: I88814aaeabecc007f5262227aa0681a1d16156d5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1573138
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Paolo Severini <paolosev@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#61020}

Bug: v8:3598, chromium:958035
Change-Id: Ie53b39f3bb31567797a61e5110685284c266c1f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599596
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61368}
2019-05-09 09:09:18 +00:00
Andreas Haas
8168c76976 [wasm] Implement the table.fill instruction
The implementation is done with a runtime function.

R=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: I5f27b1fdc7cc2baf6919b4db3bf053a350b91a74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1596738
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61274}
2019-05-07 11:36:44 +00:00
Jakob Gruber
7bc1af3d98 Revert "Remove --win64-unwinding-info flag and always generate unwind info on Win/x64"
This reverts commit efd8c2d975.

Reason for revert: Performance regressions (chromium:958035)

Original change's description:
> Remove --win64-unwinding-info flag and always generate unwind info on Win/x64
>
> The generation of unwind info to enable stack walking on Windows/x64
> (https://chromium-review.googlesource.com/c/v8/v8/+/1469329) was implemented
> behind a temporary flag, in order to coordinate these changes with the
> corresponding changes in Chromium.
>
> The required changes to Chromium
> (https://chromium-review.googlesource.com/c/chromium/src/+/1474703) have also
> been merged, so we can now remove the flag and enable the generation of stack
> unwinding info by default on Windows/x64.
>
> Bug: v8:3598
> Change-Id: I88814aaeabecc007f5262227aa0681a1d16156d5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1573138
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Paolo Severini <paolosev@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#61020}

TBR=ulan@chromium.org,mstarzinger@chromium.org,jgruber@chromium.org,paolosev@microsoft.com

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

Tbr: ulan@chromium.org,mstarzinger@chromium.org,paolosev@microsoft.com
Bug: v8:3598, chromium:958035
Change-Id: Ia86a230ee83080ed8ace43e4641c8c1013043df4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1598748
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61259}
2019-05-07 07:52:17 +00:00
Andreas Haas
8fab64cf4c [wasm] Implement the table.size instruction
This CL adds decoding and code generation for the table.size
instruction.

R=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: I0e689a993d25db72281ebba0854454be12f4d350
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593302
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61195}
2019-05-03 09:50:43 +00:00
Andreas Haas
ef3c733810 [wasm] Implement the table.grow instruction
This CL add decoding and code generation for the table.grow
instruction. For code generation we just generate a runtime
call. The implementation is quite straight-forward. However,
I did several small cleanups along the way. I hope it's still
acceptable. I could also split out some cleanups into separate
CLs.

R=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: Id885b7e70eb4f5bccfe779eb216f7cc9302ea3a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593078
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61192}
2019-05-03 09:00:40 +00:00
Clemens Hammacher
4b0f9c856e [cleanup] Use Vector::begin instead of Vector::start
Our {Vector} template provides both {start} and {begin} methods. They
return exactly the same value. Since the {begin} method is needed for
iteration, and is also what standard containers provide, this CL
switches all uses of the {start} method to use {begin} instead.

Patchset 1 was auto-generated by using this clang AST matcher:
    callExpr(
        callee(
          cxxMethodDecl(
            hasName("start"),
            ofClass(hasName("v8::internal::Vector")))
        ),
        argumentCountIs(0))

Patchset 2 was created by running clang-format. Patchset 3 then
removes the now unused {Vector::start} method.

R=jkummerow@chromium.org
TBR=mstarzinger@chromium.org,yangguo@chromium.org,verwaest@chromium.org

Bug: v8:9183
Change-Id: Id9f01c92870872556e2bb3f6d5667463b0e3e5c6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1587381
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61081}
2019-04-29 12:43:16 +00:00
Paolo Severini
efd8c2d975 Remove --win64-unwinding-info flag and always generate unwind info on Win/x64
The generation of unwind info to enable stack walking on Windows/x64
(https://chromium-review.googlesource.com/c/v8/v8/+/1469329) was implemented
behind a temporary flag, in order to coordinate these changes with the
corresponding changes in Chromium.

The required changes to Chromium
(https://chromium-review.googlesource.com/c/chromium/src/+/1474703) have also
been merged, so we can now remove the flag and enable the generation of stack
unwinding info by default on Windows/x64.

Bug: v8:3598
Change-Id: I88814aaeabecc007f5262227aa0681a1d16156d5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1573138
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Paolo Severini <paolosev@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#61020}
2019-04-25 15:56:55 +00:00
Bill Ticehurst
02703a099a Fix Wasm trap handler recursion on exceptions raised early
Check if storage for thread_local variables has been allocated before
attempting to access such variables, as exceptions may be raised in the
thread before this initializion is complete, causing an infinite loop.

Bug: v8:8966
Change-Id: Ifc6223b74999a55bfd0ed2d6ebf054bbffd7e809
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1507714
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60852}
2019-04-15 20:14:47 +00:00
Clemens Hammacher
38ce72ae2c [wasm] Remove test-only method
The {remaining_uncommitted_code_space} method is only used for testing.
This CL removes it, and replaces all uses by {committed_code_space}.

R=mstarzinger@chromium.org

Bug: v8:8217
Change-Id: Icb50471da3564a5cd114b15836c8b346b932a108
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1559735
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60704}
2019-04-09 12:07:40 +00:00
Frederik Gossen
fa7c0ed288 [wasm-hints] Resolve Performance Problem
Locks for compilation state callbacks and for the native module are
again taken one after the other. As a consequence, publishing compiled
Wasm code again happens in parallel. Compile times are now comparable to
before lazy hints were enabled.

Bug: chromium:949050
Change-Id: I45c52254d046de080938bd131fd3ed8116660bef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552787
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60646}
2019-04-05 11:07:00 +00:00
Frederik Gossen
be83fea988 [wasm-hints] Merged Tier Enum
Merged WasmCode::Tier into Execution Tier.

Bug: v8:9003
Change-Id: I0ad439b8bc060f73e71d60ab9c93dd6bc18d05fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1547852
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60610}
2019-04-03 16:13:21 +00:00
Clemens Hammacher
084207d968 [wasm] Use engine's allocator consistently
Using the Isolate's allocator when creating the WasmModule can lead to
use-after-free situations when the NativeModule is shared across
Isolates.

R=mstarzinger@chromium.org

Bug: v8:9079
Change-Id: I5a564852179cc5b9d4cbad2a002d3b6e14b01968
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1550404
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60605}
2019-04-03 14:33:30 +00:00
Frederik Gossen
f0cfb7cc81 [wasm-hints] Unified Naming for Compilation Hints
The tiers are now consistently referred to as baselin and top tier.

Bug: v8:9003
Change-Id: I74ad1867aca63bee9eb83b7f0f9fbaf2b1523dcb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1547667
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60591}
2019-04-03 10:51:13 +00:00
Clemens Hammacher
d4266e3035 [wasm][gc] Add code ref scopes for code GC
This CL adds all the necessary {WasmCodeRefScope}s in the code base, or
at least a good approximation. A follow-up CL will enable a check that
a {WasmCodeRefScope} exists whenever a pointer to a {WasmCode} object
is returned from the {NativeModule}. This should flush out any missing
scopes.

R=titzer@chromium.org

Bug: v8:8217
Change-Id: I54c7eb39aeb1acde38273c399396e6b1390a4cb2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1533860
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60566}
2019-04-02 11:37:41 +00:00
Frederik Gossen
9ac3ec565d Reland "[wasm-hints] Enabled Lazy Compilation by Hint"
This is a reland of 09fa63a935

Original change's description:
> [wasm-hints] Enabled Lazy Compilation by Hint
>
> Hints for lazy compilation are now taken into consideration. If the
> custom hints section suggests lazy compilatin we do so unless the module
> consists of a single function.
>
> Bug: v8:9003
> Change-Id: Ibdc400453cee20d4d5c814733887b38fb675b220
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1535827
> Commit-Queue: Frederik Gossen <frgossen@google.com>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60557}

Bug: v8:9003
No-Try: true
Change-Id: I8d6f4518aa548c815fba4e6e62d2206129336cc6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1547851
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60564}
2019-04-02 10:31:22 +00:00
Frederik Gossen
be470c5546 Revert "[wasm-hints] Enabled Lazy Compilation by Hint"
This reverts commit 09fa63a935.

Reason for revert: Falkes on https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20shared/29942

Original change's description:
> [wasm-hints] Enabled Lazy Compilation by Hint
> 
> Hints for lazy compilation are now taken into consideration. If the
> custom hints section suggests lazy compilatin we do so unless the module
> consists of a single function.
> 
> Bug: v8:9003
> Change-Id: Ibdc400453cee20d4d5c814733887b38fb675b220
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1535827
> Commit-Queue: Frederik Gossen <frgossen@google.com>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60557}

TBR=mstarzinger@chromium.org,clemensh@chromium.org,frgossen@google.com

Change-Id: I18dd424fe8cf05f220f7498bb1ebe4b9fce7d240
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9003
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1547668
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60558}
2019-04-01 15:02:12 +00:00
Frederik Gossen
09fa63a935 [wasm-hints] Enabled Lazy Compilation by Hint
Hints for lazy compilation are now taken into consideration. If the
custom hints section suggests lazy compilatin we do so unless the module
consists of a single function.

Bug: v8:9003
Change-Id: Ibdc400453cee20d4d5c814733887b38fb675b220
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1535827
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60557}
2019-04-01 14:32:21 +00:00
Clemens Hammacher
98b8715427 [wasm][cleanup] Using 'using' instead of 'typedef'
Even though both are allowed in the style guide, it recommends to use
'using', as its syntax is more consistent with the rest of C++.
This CL turns all typedefs in wasm code to 'using' declarations.

R=ahaas@chromium.org

Bug: v8:8834
Change-Id: Ibdce88a5cc31e0785cbc1b34088bd39aa3ec84b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1545890
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60519}
2019-03-29 10:20:30 +00:00
Andreas Haas
2d9ec0a420 Reland: [wasm][anyref] Add support of call-indirect for multiple tables
The reason for the revert was that Liftoff did not bail out on indirect
calls to tables other than table 0. Whenever the Liftoff code got
executed, the test would fail.

Original message:
With this CL it is possible to use any anyfunc table in call-indirect,
not just the first table.

The current implementation is based on runtime calls. This is just an
initial implementation which should be replaced by a
dispatch-table-based eventually. However, this implementation allows
us to move forward with the anyref proposal implementation.

R=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: Iedd56ee7acb281441bca32ffd3dc7157203ee1ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532072
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Auto-Submit: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60382}
2019-03-21 08:42:48 +00:00
Clemens Hammacher
25d8a157b1 [wasm] Split adding code from publishing it
This prepares a refactoring to add and publish compilation results in
batches. For this, we need to separate the two phases, so that we can
lock the module, allocate all the code space, release the lock, copy
the code, lock the module, publish the code, and release the lock
again.
In particular, this CL does the following:
1) It removes the {AddOwnedCode} method. The functionality of creating
   the {WasmCode} and memcpy'ing the instruction into that is done in
   the other {Add*Code} methods. Adding to {owned_code_} is done in
   {PublishCode}.
2) {PublishInterpreterEntry} is now functionally equivalent to
   {PublishCode}, so it's removed.
3) After {AddCode}, the caller has to call {PublishCode}. In a
   follow-up CL, this will be called in batches (first {AddCode} them
   all, then {PublishCode} them all).
4) {AddCompiledCode} now assumes that the {WasmCompilationResult}
   succeeded. Otherwise, the caller should directly call {SetError} on
   the {CompilationState}.
5) {PublishCode} is now the chokepoint for installing code to the code
   table, the owned code vector, the jump table, and setting interpreter
   redirections. It replaces previous direct calls to {InstallCode} or
   explicitly adding to {owned_code_}.
6) Increasing the {generated_code_size_} counter is now done in
   {AllocateForCode}, which is the chokepoint for allocating space for
   generated code. This way, we will only increase this counter once
   once we allocate in batches.

R=titzer@chromium.org

Bug: v8:8916
Change-Id: I71e02e3a838f21797915cee3ebd373804fb12237
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1530817
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60369}
2019-03-20 13:39:11 +00:00
Andreas Haas
c808b934d3 Revert "[wasm][anyref] Add support of call-indirect for multiple tables"
This reverts commit 9d167f57e0.

Reason for revert: There is a crash on https://ci.chromium.org/p/v8/builders/ci/V8%20Win32/20026

Original change's description:
> [wasm][anyref] Add support of call-indirect for multiple tables
> 
> With this CL it is possible to use any anyfunc table in call-indirect,
> not just the first table.
> 
> The current implementation is based on runtime calls. This is just an
> initial implementation which should be replaced by a
> dispatch-table-based eventually. However, this implementation allows
> us to move forward with the anyref proposal implementation.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: v8:7581
> Change-Id: I57d09b18add7f525555bf7c949aef17a64b0e7c5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1530801
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60360}

TBR=mstarzinger@chromium.org,ahaas@chromium.org

Change-Id: Iba4b84078aa070498be7e79212970b94595f5757
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7581
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532069
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60362}
2019-03-20 11:52:37 +00:00
Andreas Haas
9d167f57e0 [wasm][anyref] Add support of call-indirect for multiple tables
With this CL it is possible to use any anyfunc table in call-indirect,
not just the first table.

The current implementation is based on runtime calls. This is just an
initial implementation which should be replaced by a
dispatch-table-based eventually. However, this implementation allows
us to move forward with the anyref proposal implementation.

R=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: I57d09b18add7f525555bf7c949aef17a64b0e7c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1530801
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60360}
2019-03-20 11:33:16 +00:00
Frederik Gossen
af70a50369 [wasm-hint] Unit Test for Wasm Compilation Hints Decoder
This is just one small unit test for now. As we expect to adapt the
encoding this is more of an exercise than exhaustive testing.

Bug: v8:9003

Change-Id: I8f59043c3f7acbb6169254ec6d6ae13251d1054f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1526010
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60358}
2019-03-20 10:49:46 +00:00
Andreas Haas
d7cd9051ad [wasm][anyref] Introduce anyfunc globals
Anyfunc globals are very similar to anyref globals. This CL is mostly
about extending the conditions which guard the anyref globals code.

R=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: Ia92ac4560102cc3ed0060342f92758db28f415ca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1526004
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60281}
2019-03-18 12:01:52 +00:00
Clemens Hammacher
3df442d738 [wasm] Keep NativeModule alive in BackgroundCompileScope
We need to ensure that the NativeModule stays alive while any
{BackgroundCompileScope} exists, because during that time we hold
shared ownership of the mutex in the {BackgroundCompileToken}. If the
{NativeModule} dies during that period, we would need to get exclusive
ownership of the mutex and deadlock.

This change requires holding a {std::weak_ptr<NativeModule>} in the
BackgroundCompileToken instead of a raw pointer, hence it can only be
initialized after the NativeModule was created. This is done via a
separate {InitCompilationState} method.

R=ahaas@chromium.org

Bug: v8:8979
Change-Id: Ia14bd272ea0bc47aec547024da6020608418c9d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1518178
Auto-Submit: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60203}
2019-03-13 08:04:04 +00:00
Clemens Hammacher
3a16ee8708 [wasm][streaming] Report deterministic error location
This fixes a bug in the offset computation when instantiating the
decoder to decode a VarInt32.
It also extends the streaming decoder test to check the error location.

R=ahaas@chromium.org

Bug: v8:8814
Change-Id: Id8ce31ce7e494cce14231febbb5b0c7d91a26e01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1505453
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60067}
2019-03-06 17:30:48 +00:00
Ben Smith
a3ac513b5e [wasm] Implement passive element binary format
Passive elements have a different binary format, where the contents are
instructions instead of function indexes:

    0xd0 0x0b       -> (ref.null)
    0xd2 var:x 0x0b -> (ref.func x)

Bug: v8:8891
Change-Id: Ie7e8efe7b5acdf99622880dd97d28d3c13744dff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1497516
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60020}
2019-03-04 20:05:13 +00:00
Clemens Hammacher
500260027f [wasm] Store function index in integer
We sometimes store function indexes and number of functions as {size_t}
and sometimes as {int}. Unify a few places to be {int}.

R=ahaas@chromium.org

Change-Id: I1d204cbd9388245f97f291a469b32743457ab2c0
Reviewed-on: https://chromium-review.googlesource.com/c/1491607
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59946}
2019-02-28 13:02:21 +00:00
Michael Starzinger
85b4ec5090 [wasm] Fix {StreamingDecoder} to reject multiple code sections.
R=ahaas@chromium.org
TEST=mjsunit/regress/wasm/regress-935138
BUG=chromium:935138

Change-Id: I73465e0edcdfcd33b96764ffaf5f33519e424bb8
Reviewed-on: https://chromium-review.googlesource.com/c/1486471
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59852}
2019-02-26 09:59:44 +00:00
Michael Starzinger
d7a5e5ba3e [wasm] Fix section order checking in {StreamingDecoder}.
This removes an outdated section order check from {CreateNewBuffer} and
relies solely on the checks done in {ProcessSection}. Those checks are
more comprehensive and will remain coherent with synchronous decoding.

R=ahaas@chromium.org
TEST=mjsunit/regress/wasm/regress-8846
BUG=v8:8846

Change-Id: Id0cdc3bf3ad78f7970c9fceff66a17ab20f4666b
Reviewed-on: https://chromium-review.googlesource.com/c/1477211
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59702}
2019-02-19 16:57:23 +00:00
Victor Costan
4d9381baa6 test: Replace _TEST_CASE_ with _TEST_SUITE_.
Googletest is (at last) converging with industry-standard terminology
[1]. We previously called test suites "test cases", which was rather
confusing for folks coming from any other testing framework.

Chrome now has a googletest version that supports _TEST_SUITE_ macros
instead of _TEST_CASE_, so this CL cleans up some of the outdated usage.

[1] https://github.com/google/googletest/blob/master/googletest/docs/primer.md#beware-of-the-nomenclature

Bug: chromium:925652
Change-Id: I3cd02b9fa6dbece1594bbfd50a21ad7503c2aab9
Reviewed-on: https://chromium-review.googlesource.com/c/1475654
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59666}
2019-02-18 21:36:56 +00:00
Clemens Hammacher
4f69c46aa8 [wasm][test] Turn EXPECT_LENGTH macros into method
This removes another two macros and introduces a templatized function
instead.
Note that there is only one instantiation per input length, not per
input.

R=titzer@chromium.org

Bug: v8:8562
Change-Id: I47ad274e68d26b962cbd582e90995d30b1d09d39
Reviewed-on: https://chromium-review.googlesource.com/c/1460938
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59605}
2019-02-14 16:52:03 +00:00
Clemens Hammacher
15a621a2f9 [wasm][test] Check streaming decoder error messages
In the wasm streaming decoder error position test, do also check the
error messages generated. This revealed messages that were not quite
fitting and some that were formatted differently than the majority.

R=ahaas@chromium.org

Bug: v8:8814
Change-Id: If157f1083a104413bf14797ac56e756baac98c17
Reviewed-on: https://chromium-review.googlesource.com/c/1463780
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59604}
2019-02-14 16:06:43 +00:00
Francis McCabe
0988e0d647 [wasm] ReturnCall Implementation (decoder).
Focuses on decoder implementation and unittests of decoding return call instructions

Bug: v8:7431
Change-Id: Ib1351bb26f8bac0a766d633486492fcd8ead627b
Reviewed-on: https://chromium-review.googlesource.com/c/1455476
Commit-Queue: Francis McCabe <fgm@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59582}
2019-02-14 00:02:03 +00:00
Clemens Hammacher
8bfefb2f03 [wasm][test] Clean up function body decoder unittest
This cleans up a few things after https://crrev.com/c/1458956.

R=titzer@chromium.org

Bug: v8:8562
Change-Id: I7904c195ee385f0aa8815447f440d8119601af3e
Reviewed-on: https://chromium-review.googlesource.com/c/1460467
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59567}
2019-02-13 14:55:38 +00:00
Nico Weber
bff96cef06 v8: Fix -Wextra-semi warnings, enable warning.
For macros expanding to function definitions, I removed the spurious ; after
macro invocations. For macros expandign to function declarations, I made the ;
required and consistently inserted it.

No behavior change.

Bug: chromium:926235
Change-Id: Ib8085d85d913d74307e3481f7fee4b7dc78c7549
Reviewed-on: https://chromium-review.googlesource.com/c/1467545
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59558}
2019-02-13 14:11:28 +00:00
Clemens Hammacher
0ce2f3d43b [wasm][test] Remove macros
This removes most macros from the function body decoder unittest. It
makes the {Validate} method (and the new {ExpectValidates} and
{ExpectFailure}) templates, to receive the code in different formats.

Drive-by: Rename "verify" to "validate".

R=titzer@chromium.org

Bug: v8:8562
Change-Id: I89e6125b52cf40a9539317bf16189208cd0592ab
Reviewed-on: https://chromium-review.googlesource.com/c/1458956
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59557}
2019-02-13 14:10:18 +00:00
Andreas Haas
dd6f4d4f4c [wasm][anyref] Implement decoding of table.get and table.set
R=titzer@chromium.org

Bug: v8:7581
Change-Id: I857a40a0f955b3506d7958d2128a1b4560cff0bc
Reviewed-on: https://chromium-review.googlesource.com/c/1458236
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59439}
2019-02-07 14:45:38 +00:00
Jakob Gruber
f65a638ec1 Remove unneeded safepoint and handler table offset arguments
These offsets are now transported via CodeDesc.

Bug: v8:8758
Change-Id: If7485c62878bc81a55c9b4ca8ce3578dab2376ce
Reviewed-on: https://chromium-review.googlesource.com/c/1447717
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59315}
2019-02-04 08:44:08 +00:00
Ben Smith
70c94dfab0 [wasm] Rename memory.drop and table.drop
The new names for memory.drop and table.drop are data.drop and elem.drop
respectively. See
https://github.com/WebAssembly/bulk-memory-operations/issues/23 and
https://github.com/WebAssembly/bulk-memory-operations/pull/46.

Change-Id: I07aab8448fabe24eb9734dc7dac6f91c570cb553
Reviewed-on: https://chromium-review.googlesource.com/c/1446148
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59261}
2019-01-31 19:27:57 +00:00
Clemens Hammacher
659347f9aa [wasm] Slighly modify some error messages
This CL revises some of our error messages to be more precise or more
aesthetically appealing.

R=titzer@chromium.org, ahaas@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
Bug: chromium:926311
Change-Id: I38eaee09fd37f9b67fdb08bc7b0df64a6eaf96f9
Reviewed-on: https://chromium-review.googlesource.com/c/1445980
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59249}
2019-01-31 15:52:42 +00:00
Jakob Kummerow
c640296e5a [ubsan] Avoid signed left shifts
The workaround is simple: cast to unsigned before shifting.

Bug: v8:3770
Change-Id: I5f0f7af697ec5db0ab1df3d061008940c83c5c56
Reviewed-on: https://chromium-review.googlesource.com/c/1436215
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59140}
2019-01-28 20:43:47 +00:00
Jakob Kummerow
1df72c6fa1 [ubsan] Don't call memcpy with nullptr arguments
Not even when copying 0 bytes. Same for memmove and memcmp.

Bug: v8:3770
Change-Id: I3ed45a4572467ec7a9fc697ac28c004aa9b8b274
Reviewed-on: https://chromium-review.googlesource.com/c/1436217
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59101}
2019-01-25 20:53:45 +00:00
Andreas Haas
258371bd44 [wasm][anyref] Support anyref stack parameters
Anyref parameters can exist across GC runs. Therefore the GC has to
know where anyref parameters are on the stack so that it can mark them
in its marking phase, and update them in the compaction phase.

Already in a previous CL we grouped all anyref parameters so that they
can be found more easily in a stack frame, see
https://crrev.com/c/1371827. In this CL we implement the stack scanning
itself.

Note that anyref parameters are not scanned while iterating over the
caller's frame (to which they actually belong), but while iterating
over the callee's frame. The reason is that with tail-calls, only the
callee knows how many tagged stack parameters (aka anyref parameters)
there are.

R=mstarzinger@chromium.org
also-by=mstarzinger@chromium.org

Bug: v8:7581
Change-Id: I7a41ce11d06c0d420146fdb0bb8d5606f28824d7
Reviewed-on: https://chromium-review.googlesource.com/c/1424955
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59099}
2019-01-25 18:00:46 +00:00
Clemens Hammacher
a1ff298d4f [wasm] Move Isolate management to WasmEngine
The WasmCodeManager held a list of all Isolates that use the
WasmEngine/WasmCodeManager (those two are 1:1).
Since we want to move all isolate-specific tasks (like code logging and
compilation callbacks) to the WasmEngine, this CL moves this management
from the WasmCodeManager to the WasmEngine. We now have a bidirectional
mapping from NativeModules to the Isolates that use them, and from an
Isolate to all the NativeModules it uses (n:n).
The IsolateData struct will be extended in follow-up CLs to hold things
like the ForegroundTaskRunner. The Isolate* in the NativeModule /
CompilationState will eventually be removed.

R=mstarzinger@chromium.org

Bug: v8:8689
Change-Id: Ic2c003c3949f73ce3264dd9dac96884a5c0b9896
Reviewed-on: https://chromium-review.googlesource.com/c/1433793
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59092}
2019-01-25 11:19:54 +00:00
Clemens Hammacher
1a1f4e1ef4 [test] Refactor AllocateAssemblerBuffer
Refactor the AllocateAssemblerBuffer helper for the new Assembler API.
This is the only non-mechanical part, all other callsites that create
Assembler instances can be trivially changed to the new API. This will
be done in a separate CL.

R=mstarzinger@chromium.org

Bug: v8:8689, v8:8562
Change-Id: I6c150748eeea778d9b70f41fd66fbb1221035a1b
Reviewed-on: https://chromium-review.googlesource.com/c/1415490
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58881}
2019-01-17 11:57:07 +00:00
Michael Starzinger
aaee69584f [wasm] Switch to new 'catch' and 'br_on_exn' proposal.
This switches the experimental exception handling implementation to the
new proposal where 'catch' blocks behave in a catch-all fashion and a
new 'br_on_exn' operation is used to check for a certain exception type
and extract the exception values on a match.

R=clemensh@chromium.org
TEST=unittests/FunctionBodyDecoderTest,mjsunit/wasm/exceptions
BUG=v8:8091

Change-Id: Ib12ba28b3aa2a7d831312a83abcb00bf56d0adc3
Reviewed-on: https://chromium-review.googlesource.com/c/1409431
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58832}
2019-01-15 14:46:30 +00:00
Clemens Hammacher
57fa8f5ba3 [wasm] Split Result/ResultBase in WasmError and Result
We often use ResultBase or VoidResult to store or pass wasm errors
(errors with locations). This CL extracts a WasmError class which can
store an error (can also be empty), and Result<T> which stores an error
or a T (exactly one of them).

R=titzer@chromium.org

Bug: v8:8689
Change-Id: I3f5203559984a0ae8757e0130a9184957fa28df5
Reviewed-on: https://chromium-review.googlesource.com/c/1409365
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58827}
2019-01-15 12:48:02 +00:00
Ben L. Titzer
ca4c236fd3 [wasm] Rename WasmTableInit to WasmElemSegment
This matches the terminology that is used throughout the spec.

R=clemensh@chromium.org

Change-Id: I62445e750415e6048b805110c7306f3bdbf9da60
Reviewed-on: https://chromium-review.googlesource.com/c/1408988
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58774}
2019-01-14 12:01:18 +00:00
Jakob Kummerow
40ac5a39fc [ubsan] Fix numerical overflows in wasm
Mostly signed integer overflows, and a few cases of double
division by zero (which is defined by IEEE-754 to return
Infinity (or NaN for 0/0) but is UB in C++).

Bug: v8:3770
Change-Id: Id92725b0ac57cb357978124a3dc6f477430bc97d
Reviewed-on: https://chromium-review.googlesource.com/c/1403133
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58696}
2019-01-10 12:24:51 +00:00