Reason for revert:
Main suspect for tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/11893
Also changes layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/10036
+mips builder:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Mips%20-%20builder/builds/4032
Original issue's description:
> [wasm] Master CL for Binary 0xC changes.
>
> [0xC] Convert to stack machine semantics.
> [0xC] Use section codes instead of names.
> [0xC] Add elements section decoding.
> [0xC] Decoding of globals section.
> [0xC] Decoding of memory section.
> [0xC] Decoding of imports section.
> [0xC] Decoding of exports section.
> [0xC] Decoding of data section.
> [0xC] Remove CallImport bytecode.
> [0xC] Function bodies have an implicit block.
> [0xC] Remove the bottom label from loops.
> [0xC] Add signatures to blocks.
> [0xC] Remove arities from branches.
> Add tests for init expression decoding.
> Rework compilation of import wrappers and how they are patched.
> Rework function indices in debugging.
> Fix ASM->WASM builder for stack machine.
> Reorganize asm.js foreign functions due to import indices change.
>
> R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org
> BUG=chromium:575167
> LOG=Y
>
> Committed: https://crrev.com/76eb976a67273b8c03c744f64ad850b0432554b9
> Cr-Commit-Position: refs/heads/master@{#39678}
TBR=ahaas@chromium.org,bradnelson@chromium.org,mtrofin@chromium.org,rossberg@chromium.org,bradnelson@google.com,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167
Review-Url: https://codereview.chromium.org/2361053004
Cr-Commit-Position: refs/heads/master@{#39685}
[0xC] Convert to stack machine semantics.
[0xC] Use section codes instead of names.
[0xC] Add elements section decoding.
[0xC] Decoding of globals section.
[0xC] Decoding of memory section.
[0xC] Decoding of imports section.
[0xC] Decoding of exports section.
[0xC] Decoding of data section.
[0xC] Remove CallImport bytecode.
[0xC] Function bodies have an implicit block.
[0xC] Remove the bottom label from loops.
[0xC] Add signatures to blocks.
[0xC] Remove arities from branches.
Add tests for init expression decoding.
Rework compilation of import wrappers and how they are patched.
Rework function indices in debugging.
Fix ASM->WASM builder for stack machine.
Reorganize asm.js foreign functions due to import indices change.
R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org
BUG=chromium:575167
LOG=Y
Review-Url: https://codereview.chromium.org/2345593003
Cr-Commit-Position: refs/heads/master@{#39678}
This is some initial cleanup to keep /src clean. The
AccountingAllocator is actually exclusively used by zones and this
common subfolder makes that more clear.
BUG=v8:5409
Review-Url: https://codereview.chromium.org/2344143003
Cr-Commit-Position: refs/heads/master@{#39558}
test-run-wasm-module cctests broken in debug since recent refactoring changes for moving Compilation/Instantiation off the module object (https://codereview.chromium.org/2320723005). The problem here is that SetupIsolateForWasm tries to add the same property to a module_object multiple times and hits a DCHECK when this property is found on a lookup.
- Fixed to use the setup method only once when CcTest::InitIsolateOnce is used.
- Move setup method to test as this is only used for cctests/fuzzers. The install method should take care of this in the regular JS pipeline.
R=mtrofin@chromium.org, ahaas@chromium.org
Review-Url: https://codereview.chromium.org/2342263002
Cr-Commit-Position: refs/heads/master@{#39484}
All parameters passed by reference must be labeled const.
If the object is mutable, then we pass by pointer.
BUG=
Review-Url: https://codereview.chromium.org/2336233006
Cr-Commit-Position: refs/heads/master@{#39451}
The wasm-module-runner is used both in cctests and in fuzzers. As
discussed offline, it is weird to include cctest header files in
fuzzers, so I introduce a new test/common directory which contains the
common files.
R=titzer@chromium.org, jochen@chromium.org
Review-Url: https://codereview.chromium.org/2335193002
Cr-Commit-Position: refs/heads/master@{#39411}
Moved the compilation/instantiation pipeline to work off the
module object (JSObject), making the compiled module data (the
FixedArray) an implementation detail. This:
- simplifies the code by removing duplicate decode->compile->instantiate
sequences
- sets up the stage for "dressing up" the runtime model with
stronger typed APIs
- helps relanding this CL: https://codereview.chromium.org/2305903002/.
It turns out that GCs during the cloning/instantiation events cause
trouble, and centering the source of truth on the module object helps
address this issue.
In the process, clarified cctest setup for wasm-capable isolates,
and changed signatures for consistency (using ModuleOrigin througout).
BUG=
Review-Url: https://codereview.chromium.org/2320723005
Cr-Commit-Position: refs/heads/master@{#39360}
With this CL the wasm-code-fuzzer first decodes and interprets the test
case generated by the fuzzer. It then compiles the test case, but only
executes the compiled instance if the interpretation of the test case
was successful. If the compiled instance is executed, then the result of
the execution is compared with the result of the interpretation.
Additionally this CL refactors the CompileAndRunWasmModule function in
wasm-module.cc to resuse code in the call to the interpreter.
R=titzer@chromium.org
Review-Url: https://codereview.chromium.org/2321443002
Cr-Commit-Position: refs/heads/master@{#39351}
This unblocks avoiding the separate code template.
In the upcoming CL doing away with code templates, We need to track instances
through the module object, which needs to be separate from the compiled module
data, which is then shared with the first instance.
This CL ensures we have the object available in the asm.js scenario, too.
Note that this CL also unifies the error messaging when module
decoding fails.
BUG=v8:5316
Review-Url: https://codereview.chromium.org/2299873002
Cr-Commit-Position: refs/heads/master@{#39097}
A test exercising the public APIs for wasm serialization and
simulates the serialization scenario - serialize in one isolate, deserialize
in another.
BUG=v8:5072
Review-Url: https://codereview.chromium.org/2249973002
Cr-Commit-Position: refs/heads/master@{#38644}
Remove second wasm module compilation and instantiation path that
we had in CompileAndRunWasmModule and reuse the same path used
by user code.
BUG=
Review-Url: https://codereview.chromium.org/2091533002
Cr-Commit-Position: refs/heads/master@{#37203}
[wasm] Binary 11: Swap the order of section name / section length.
[wasm] Binary 11: Shorter section names.
[wasm] Binary 11: Add a prefix for function type declarations.
[wasm] Binary 11: Function types encoded as pcount, p*, rcount, r*
[wasm] Fix numeric names for functions.
R=rossberg@chromium.org,jfb@chromium.org,ahaas@chromium.org
BUG=chromium:575167
LOG=Y
Review-Url: https://codereview.chromium.org/1896863003
Cr-Commit-Position: refs/heads/master@{#35897}
[wasm] Binary 11: br_table takes a value.
[wasm] Binary 11: Add implicit blocks to if arms.
[wasm] Binary 11: Add arities to call, return, and breaks
[wasm] Binary 11: Add experimental version.
This CL changes the encoder, decoder, and tests to use a postorder
encoding of the AST, which is more efficient in decode time and
space.
R=bradnelson@chromium.org,rossberg@chromium.org,binji@chromium.org
BUG=chromium:575167
LOG=Y
Review-Url: https://codereview.chromium.org/1830663002
Cr-Commit-Position: refs/heads/master@{#35896}
We expect that the majority of malloc'd memory held by V8 is allocated
in Zone objects. Introduce an Allocator class that is used by Zones to
manage memory, and allows for querying the current usage.
BUG=none
R=titzer@chromium.org,bmeurer@chromium.org,jarin@chromium.org
LOG=n
TBR=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1847543002
Cr-Commit-Position: refs/heads/master@{#35196}
In JavaScript code and stubs, JSSP mirrors the CSP but may be unaligned.
But in WASM code only CSP is used, like native code, and it must be
aligned.
Calls into WASM from JS need to carefully align the C stack
pointer (csp) and restore the previous JSSP, while calls from WASM
to JS need to compute a new JSSP and restore their CSP after the
call.
R=ahaas@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1811283003
Cr-Commit-Position: refs/heads/master@{#35096}
Local declarations were previously encoded as an optional set of
4 uint16 values as part of the function declaration. This CL
implements the current design of moving these declarations to
a list of pairs of (type, count) that is part of the body.
R=bradnelson@chromium.org,binji@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1763433002
Cr-Commit-Position: refs/heads/master@{#34564}
Make WasmModule free it's own memory, avoid mixing stack and
heap allocations in tests. This fixes several memory leaks.
Fix several signed compare issues.
Fix several floating point warnings.
Don't setup heap as external, as then the GC can't collect it.
Disable some tests that fail under ASAN.
R=ahaas@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1538543002
Cr-Commit-Position: refs/heads/master@{#32948}
As discussed in person, this adds the code from v8-native-prototype into
V8 proper, guarded by GYP flags that do not build the code by default.
Passing wasm=on to 'make' or setting v8_wasm as a GYP flag activates
building of this code.
An additional header file is added to and exported from the compiler
directory, src/compiler/wasm-compiler.h. This exposes a limited interface
with opaque Node and Graph types to the decoder to build TF graphs, as
well as functions to compile WASM graphs.
The mjsunit tests added are blacklisted because they fail without the
WASM object exposed to JS, which is also disabled by the build config
option.
This corresponds closely to 5981e06ebc, with some formatting fixes and moving some files into src/compiler.
R=mstarzinger@chromium.org, bradnelson@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1504713014
Cr-Commit-Position: refs/heads/master@{#32794}
