Commit Graph

126 Commits

Author SHA1 Message Date
ulan
9c25d5dc6e [wasm] Fix more -Wsign-compare warnings.
BUG=v8:5614

Review-Url: https://codereview.chromium.org/2492793005
Cr-Commit-Position: refs/heads/master@{#40914}
2016-11-11 11:56:05 +00:00
ulan
3505406bc7 [wasm] Fix -Wsign-compare warnings.
BUG=v8:5614

Review-Url: https://codereview.chromium.org/2487673004
Cr-Commit-Position: refs/heads/master@{#40891}
2016-11-10 12:51:05 +00:00
ahaas
d91bed67d6 [wasm] Only immutable imported globals are valid initializer expressions
R=titzer@chromium.org
TEST=unittests/WasmModuleVerifyTest.DataSegmentWithImmutableGlobal, unittests/WasmModuleVerifyTest.DataSegmentWithMutableImportedGlobal, unittests/WasmModuleVerifyTest.DataSegmentWithImmutableImportedGlobal

Review-Url: https://codereview.chromium.org/2493433002
Cr-Commit-Position: refs/heads/master@{#40865}
2016-11-09 15:52:36 +00:00
ahaas
bd472ffac3 [wasm] Data section without memory causes a validation error
Another spec issue.

R=titzer@chromium.org, rossberg@chromium.org
TEST=unittests/WasmModuleVerifyTest.DataWithoutMemory

Review-Url: https://codereview.chromium.org/2486973003
Cr-Commit-Position: refs/heads/master@{#40855}
2016-11-09 10:37:17 +00:00
ahaas
4db05d405b [wasm] Indirect calls without function table cause validation errors.
The spec defines that indirect calls in WebAssembly code should cause a
validation error if no function table exists.

The CL contains the following changes:
1) Throw a validation error for indirect calls if the function table
   not exist.
2) Do not create TF nodes to throw a runtime error for indirect calls
   if the function table does not exist.
3) Fix existing unit tests by creating a dummy function table.
4) Add new a new test which tests that indirect calls without function
   table cause a validation error.

R=rossberg@chromium.org
CC=titzer@chromium.org

TEST=unittests/AstDecoderTest.IndirectCallsWithoutTableCrash

Review-Url: https://codereview.chromium.org/2484623002
Cr-Commit-Position: refs/heads/master@{#40852}
2016-11-09 08:37:44 +00:00
ahaas
9604b06e26 [wasm] Mutable globals cannot be exported
R=titzer@chromium.org, rossberg@chromium.org
TEST=unittests/WasmModuleVerifyTest.ExportMutableGlobal

Review-Url: https://codereview.chromium.org/2481263003
Cr-Commit-Position: refs/heads/master@{#40838}
2016-11-08 14:19:06 +00:00
ahaas
e4bae13309 [wasm] Mutable globals cannot be imported
This fixes another spec tests.

R=rossberg@chromium.org, titzer@chromium.org
TEST=WasmModuleVerifyTest.ImportTable_mutable_global

Review-Url: https://codereview.chromium.org/2484803002
Cr-Commit-Position: refs/heads/master@{#40831}
2016-11-08 13:25:47 +00:00
machenbach
32ec567df1 Revert of [wasm] Indirect calls without function table cause validation errors. (patchset #3 id:40001 of https://codereview.chromium.org/2484623002/ )
Reason for revert:
Speculative revert for blocking roll:
https://codereview.chromium.org/2479233002/

Original issue's description:
> [wasm] Indirect calls without function table cause validation errors.
>
> The spec defines that indirect calls in WebAssembly code should cause a
> validation error if no function table exists.
>
> The CL contains the following changes:
> 1) Throw a validation error for indirect calls if the function table
>    not exist.
> 2) Do not create TF nodes to throw a runtime error for indirect calls
>    if the function table does not exist.
> 3) Fix existing unit tests by creating a dummy function table.
> 4) Add new a new test which tests that indirect calls without function
>    table cause a validation error.
>
> R=rossberg@chromium.org
> CC=titzer@chromium.org
>
> TEST=unittests/AstDecoderTest.IndirectCallsWithoutTableCrash

TBR=rossberg@chromium.org,titzer@chromium.org,ahaas@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2479283002
Cr-Commit-Position: refs/heads/master@{#40811}
2016-11-07 17:57:54 +00:00
ahaas
3de5204737 [wasm] Indirect calls without function table cause validation errors.
The spec defines that indirect calls in WebAssembly code should cause a
validation error if no function table exists.

The CL contains the following changes:
1) Throw a validation error for indirect calls if the function table
   not exist.
2) Do not create TF nodes to throw a runtime error for indirect calls
   if the function table does not exist.
3) Fix existing unit tests by creating a dummy function table.
4) Add new a new test which tests that indirect calls without function
   table cause a validation error.

R=rossberg@chromium.org
CC=titzer@chromium.org

TEST=unittests/AstDecoderTest.IndirectCallsWithoutTableCrash

Review-Url: https://codereview.chromium.org/2484623002
Cr-Commit-Position: refs/heads/master@{#40802}
2016-11-07 12:37:27 +00:00
ahaas
15d4984b9c [wasm] Compare the maximum memory size with the spec limit, not with the V8 limit
The maximum memory size is a user-defined upper limit for the size of
the memory of a WebAssembly instance. The actual limit is the minimum of
the user-defined limit and the V8 limit. With this CL we allow the
user-defined limit to be greater than the V8 limit, which is required by
the spec.

R=titzer@chromium.org
CC=gdeepti@chromium.org

TEST=unittests/WasmModuleVerifyTest.MaxMaximumMemorySize

Review-Url: https://codereview.chromium.org/2484643002
Cr-Commit-Position: refs/heads/master@{#40801}
2016-11-07 12:26:19 +00:00
titzer
b7aff1ff64 [wasm] Support for restricted table imports.
This CL implements basic table import functionality.

Missing: growing of tables (WebAssembly.Grow) doesn't change dispatch tables
Missing: allowing larger table imports than minimum size

R=rossberg@chromium.org,bradnelson@chromium.org
BUG=v8:5507

Review-Url: https://codereview.chromium.org/2454503005
Cr-Commit-Position: refs/heads/master@{#40661}
2016-10-29 21:07:38 +00:00
machenbach
bc0ee727df Revert of [wasm] Support for restricted table imports. (patchset #7 id:120001 of https://codereview.chromium.org/2454503005/ )
Reason for revert:
GC stress failures:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/builds/8857

Original issue's description:
> [wasm] Support for restricted table imports.
>
> This CL implements basic table import functionality.
>
> Missing: growing of tables (WebAssembly.Grow) doesn't change dispatch tables
> Missing: allowing larger table imports than minimum size
>
> R=rossberg@chromium.org,bradnelson@chromium.org
> BUG=v8:5507

TBR=bradnelson@chromium.org,rossberg@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5507

Review-Url: https://codereview.chromium.org/2456193006
Cr-Commit-Position: refs/heads/master@{#40656}
2016-10-28 18:58:54 +00:00
titzer
404e215458 [wasm] Support for restricted table imports.
This CL implements basic table import functionality.

Missing: growing of tables (WebAssembly.Grow) doesn't change dispatch tables
Missing: allowing larger table imports than minimum size

R=rossberg@chromium.org,bradnelson@chromium.org
BUG=v8:5507

Review-Url: https://codereview.chromium.org/2454503005
Cr-Commit-Position: refs/heads/master@{#40652}
2016-10-28 18:03:50 +00:00
titzer
3f207617d7 [wasm] Binary 0xD: update encoding of opcodes, types, and add immediates.
R=ahaas@chromium.org,rossberg@chromium.org,binji@chromium.org,bradnelson@chromium.org
BUG=chromium:575167, chromium:659591

Review-Url: https://codereview.chromium.org/2440953002
Cr-Commit-Position: refs/heads/master@{#40600}
2016-10-26 16:56:49 +00:00
aseemgarg
1f6f345db2 [wasm] fix simd opcode read and error case for bad simd opcodes
BUG=chromium:658426
R=ahaas@chromium.org,titzer@chromium.org,gdeepti@chromium.org

Review-Url: https://codereview.chromium.org/2447683004
Cr-Commit-Position: refs/heads/master@{#40572}
2016-10-25 22:03:50 +00:00
titzer
418b239f0b [wasm] Use a Managed<WasmModule> to hold metadata about modules.
This CL refactors the handling of metadata associated with WebAssembly
modules to reduce the duplicate marshalling of data from the C++ world
to the JavaScript world. It does this by wrapping the C++ WasmModule*
object in a Foreign that is rooted from the on-heap WasmCompiledModule
(which is itself just a FixedArray). Upon serialization, the C++ object
is ignored and the original WASM wire bytes are serialized. Upon
deserialization, the C++ object is reconstituted by reparsing the bytes.

This is motivated by increasing complications in implementing the JS
API, in particular WebAssembly.Table, which must perform signature
canonicalization across instances.

Additionally, this CL implements the proper base + offset initialization
behavior for tables.

R=rossberg@chromium.org,bradnelson@chromium.org,mtrofin@chromium.org,yangguo@chromium.org
BUG=v8:5507, chromium:575167, chromium:657316

Review-Url: https://chromiumcodereview.appspot.com/2424623002
Cr-Commit-Position: refs/heads/master@{#40434}
2016-10-19 13:07:22 +00:00
heimbuef
e7fa9b0129 Named all zones in the project
This adds more useful information to the v8-heap-stats tool.

BUG=v8:5489

Review-Url: https://codereview.chromium.org/2394213003
Cr-Commit-Position: refs/heads/master@{#40361}
2016-10-17 12:12:42 +00:00
clemensh
5d9fa102a7 [wasm] Provide better stack traces for asm.js code
For the asm.js to WASM pipeline, the current stack traces only show
low-level WASM information.
This CL maps this back to asm.js source positions.
It does so by attaching the asm.js source Script to the compiled WASM
module, and emitting a delta-encoded table which maps from WASM byte
offsets to positions within that Script. As asm.js code does not throw
exceptions, we only store a mapping for call instructions.

The new AsmJsWasmStackFrame implementation inherits from
WasmStackFrame, but contains the logic to provide the source script and
the position inside of it.
What is still missing is the JSFunction object returned by
CallSite.getFunction(). We currently return null.

R=jgruber@chromium.org, titzer@chromium.org
BUG=v8:4203

Review-Url: https://codereview.chromium.org/2404253002
Cr-Commit-Position: refs/heads/master@{#40205}
2016-10-12 09:17:28 +00:00
clemensh
e7a0089149 [wasm] Fix decoder for null data
If passing <nullptr, 0> to the decoder and trying to decode something,
it correctly detects the error and sets an error message, but still
returns true on ok(), and returns a valid result.
I triggered this error by passing a null Vector, returned by FindSection(), to
the decoder.

R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2410913002
Cr-Commit-Position: refs/heads/master@{#40204}
2016-10-12 09:11:52 +00:00
clemensh
dde9c073bf [wasm] Implement decoding of i32v values
I use it in a follow-up commit to delta-encode asm.js source positions.

This commit also removes the redundant consume_bytes function.

R=ahaas@chromium.org, titzer@chromium.org
BUG=v8:4203

Review-Url: https://codereview.chromium.org/2406163002
Cr-Commit-Position: refs/heads/master@{#40157}
2016-10-11 09:03:37 +00:00
titzer
d46c790ef3 [asmjs] Move switch-logic.h to asmjs/ directory.
R=bradnelson@chromium.org,aseemgarg@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2408823002
Cr-Commit-Position: refs/heads/master@{#40135}
2016-10-10 17:57:47 +00:00
titzer
e97ca6ec47 [wasm] Refactor import handling for 0xC.
Imports and exports in 0xC can be much more than functions, including
tables, memories, and globals. This CL refactors the underlying
organization of imports and exports to support these new import types.

BUG=

Committed: https://crrev.com/599f8a83420346d9cba5ff97bd2a7520468207b6
Review-Url: https://codereview.chromium.org/2390113003
Cr-Original-Commit-Position: refs/heads/master@{#40033}
Cr-Commit-Position: refs/heads/master@{#40050}
2016-10-06 15:43:22 +00:00
hablich
3b1b544c20 Revert of [wasm] Refactor import handling for 0xC. (patchset #10 id:180001 of https://codereview.chromium.org/2390113003/ )
Reason for revert:
Failes a few GC stress tests.https://chromegw.corp.google.com/i/client.v8/builders/V8%20Linux%20-%20gc%20stress/builds/6253

Original issue's description:
> [wasm] Refactor import handling for 0xC.
>
> Imports and exports in 0xC can be much more than functions, including
> tables, memories, and globals. This CL refactors the underlying
> organization of imports and exports to support these new import types.
>
> BUG=
>
> Committed: https://crrev.com/599f8a83420346d9cba5ff97bd2a7520468207b6
> Cr-Commit-Position: refs/heads/master@{#40033}

TBR=mtrofin@chromium.org,ahaas@chromium.org,bradnelson@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2395133002
Cr-Commit-Position: refs/heads/master@{#40038}
2016-10-06 13:43:23 +00:00
titzer
599f8a8342 [wasm] Refactor import handling for 0xC.
Imports and exports in 0xC can be much more than functions, including
tables, memories, and globals. This CL refactors the underlying
organization of imports and exports to support these new import types.

BUG=

Review-Url: https://codereview.chromium.org/2390113003
Cr-Commit-Position: refs/heads/master@{#40033}
2016-10-06 12:30:50 +00:00
ahaas
90080f2a6b [wasm] Move test-signatures.h from test/cctest to test/common
R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2395743003
Cr-Commit-Position: refs/heads/master@{#39988}
2016-10-05 12:00:03 +00:00
titzer
c1e320b074 [wasm] Rename encoder.(cc,h) to wasm-module-builder.(cc,h)
R=bradnelson@chromium.org,mtrofin@chromium.org,mstarzinger@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2383463002
Cr-Commit-Position: refs/heads/master@{#39861}
2016-09-29 11:29:19 +00:00
mtrofin
fa071284ed [wasm] resolve mips build error post 0xC land
BUG=

Review-Url: https://codereview.chromium.org/2377683003
Cr-Commit-Position: refs/heads/master@{#39796}
2016-09-27 22:09:51 +00:00
titzer
28392ab196 [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
Review-Url: https://codereview.chromium.org/2345593003
Cr-Original-Commit-Position: refs/heads/master@{#39678}
Cr-Commit-Position: refs/heads/master@{#39795}
2016-09-27 20:46:30 +00:00
machenbach
e1eee748dd Revert of [wasm] Master CL for Binary 0xC changes. (patchset #26 id:490001 of https://codereview.chromium.org/2345593003/ )
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}
2016-09-23 17:58:24 +00:00
titzer
76eb976a67 [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

Review-Url: https://codereview.chromium.org/2345593003
Cr-Commit-Position: refs/heads/master@{#39678}
2016-09-23 15:56:54 +00:00
ahaas
99b773c28a [wasm] Break a decoder loop if there is a failure.
TEST=unittests/WasmModuleVerifyTest.Regression_648070
BUG=chromium:648070
R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2356253002
Cr-Commit-Position: refs/heads/master@{#39602}
2016-09-21 16:18:19 +00:00
rmcilroy
d5ddd2be8c [Test] Fix AsmJsUnOpsCheckOrigin off-stack access.
Review-Url: https://codereview.chromium.org/2353343002
Cr-Commit-Position: refs/heads/master@{#39597}
2016-09-21 14:07:45 +00:00
ahaas
d2c975d217 [wasm] Reset the wasm_eh_prototype flag after unittests
Changing the global state can effect the outcome of later tests.

R=jpp@chromium.org

Review-Url: https://codereview.chromium.org/2359573003
Cr-Commit-Position: refs/heads/master@{#39595}
2016-09-21 13:16:33 +00:00
heimbuef
7a4f8e4d83 Moved zones and zone related stuff in its own directory.
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}
2016-09-20 16:08:07 +00:00
ahaas
57d8193764 [wasm] Fix EnsureSpace in the ZoneBuffer of the wasm encoder.
BUG=chromium:647329
R=titzer@chromium.org
TEST=unittest EncoderTest.Regression_647329

Review-Url: https://codereview.chromium.org/2355803002
Cr-Commit-Position: refs/heads/master@{#39556}
2016-09-20 14:04:13 +00:00
ahaas
05c4afb0ed [wasm] void is not a valid type for a global.
TEST=unittest WasmModuleVerifyTest.Global_invalid_type2
BUG=chromium:645443
R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2342593002
Cr-Commit-Position: refs/heads/master@{#39421}
2016-09-14 15:44:58 +00:00
jpp
ee8ae932b8 [V8][Wasm] Removes references to finally in wasm.
The initial support for low level exception handling in Wasm will not
support finally blocks. This decision is taken for both simplicity (
handling finallys is not straightforward if we want try blocks to yield
values), and lack of good use case (clang++ does not need them.) They
may be added in the future once we understand the implications of
having them.

BUG=

Review-Url: https://codereview.chromium.org/2336303002
Cr-Commit-Position: refs/heads/master@{#39393}
2016-09-13 20:47:35 +00:00
ahaas
685d488288 [wasm] Do not support grow_memory for asmjs modules.
With this CL the AstDecoder produces an error if it encounters a
grow_memory instruction in an asmjs module. Additionally asmjs
instructions are not allowed anymore in wasm modules.

BUG=chromium:644674
R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2324733002
Cr-Commit-Position: refs/heads/master@{#39339}
2016-09-12 10:16:46 +00:00
ahaas
1a5f8fa536 [wasm] Validate the length of strings before validating the string.
BUG=chromium:644182
R=titzer@chromium.org
TEST=module-decoder-unittest.cc:ExportNameWithInvalidStringLength

Review-Url: https://codereview.chromium.org/2310023002
Cr-Commit-Position: refs/heads/master@{#39199}
2016-09-06 09:50:38 +00:00
ahaas
6a892bb451 [wasm] Validate the alignment of load and store instructions.
According to the WebAssembly specification the alignment of load and
store instructions has to be less or equal to natural alignment.

R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2285643002
Cr-Commit-Position: refs/heads/master@{#39131}
2016-09-02 11:59:49 +00:00
ahaas
79e685e277 [wasm] Validate the index of set local in AnalyzeLoopAssignment
BUG=chromium:642867
R=titzer@chromium.org
TEST=loop-assignment-analysis-unittest.cc:regress_642867

Review-Url: https://codereview.chromium.org/2290233008
Cr-Commit-Position: refs/heads/master@{#39089}
2016-09-01 14:05:50 +00:00
ahaas
5e7428b5b1 [wasm] Read global names only if their name length is valid.
BUG=chromium:642987
R=titzer@chromium.org
TEST=module-decoder-unittest.cc:GlobalWithInvalidNameLength

Review-Url: https://codereview.chromium.org/2301873002
Cr-Commit-Position: refs/heads/master@{#39071}
2016-09-01 09:52:40 +00:00
ivica.bogosavljevic
db56339952 MIPS: Fix crahses of tests unittests/AstDecoderTest.Float[32|64]Const
on architectures that do not support missaligned memory access

BUG=unittests/AstDecoderTest.Float64Const, unittests/AstDecoderTest.Float32Const

Review-Url: https://codereview.chromium.org/2275323002
Cr-Commit-Position: refs/heads/master@{#38941}
2016-08-26 12:29:54 +00:00
ahaas
71f93e6001 [wasm] Bound the allowed number of locals.
This CL fixes the first bug I found with the new fuzzing. The problem is
that the number of locals is unbounded. This CL bounds the number of
locals of one type with 8000000, an arbitrary number.

R=titzer@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2271803004
Cr-Commit-Position: refs/heads/master@{#38936}
2016-08-26 09:13:22 +00:00
titzer
b73376b908 [wasm] Macro-ify checking of prototype flags.
R=ahaas@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2253543003
Cr-Commit-Position: refs/heads/master@{#38658}
2016-08-16 12:49:31 +00:00
jpp
b2b40134d8 [WASM] Exception handling prototype.
------------------------------------------------------------------------

This CL adds support for decoding eh-related wasm opcodes:
* Throw: used for raising an exception; the thrown value lives on top of
         the evaluation stack;
* TryCatch: used to start a try block that has a catch clause;
* TryFinally: used to start a try block that has a finally clause;
* TryCatchFinally: used to start a try block that has both catch and
                   finally clauses;
* Catch <local>: used to start the catch block of a
                 TryCatch/TryCatchFinally block; the thrown value is
                 stored in local <local>; and
* Finally: used to start a finally block of TryFinally/TryCatchFinally.

Three different opcodes are used to start a try block to simplify the
AST construction during bytecode parsing.

BUG=

Review-Url: https://codereview.chromium.org/2222193004
Cr-Commit-Position: refs/heads/master@{#38579}
2016-08-11 13:15:12 +00:00
titzer
d4392107fa [wasm] Make LoadGlobal/StoreGlobal opcodes match what is coming in binary 0xC.
R=ahaas@chromium.org,bradnelson@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2209433002
Cr-Commit-Position: refs/heads/master@{#38262}
2016-08-02 22:40:50 +00:00
ddchen
0a9d4003c7 [wasm] Add support for multiple indirect function tables
This patch updates internal data structures used by V8 to support
multiple indirect function tables (WebAssembly/design#682). But, since
this feature is post-MVP, the functionality is not directly exposed and
parsing/generation of WebAssembly is left unchanged. Nevertheless, it
is being used in an experiment to implement fine-grained control flow
integrity based on C/C++ types.

BUG=

Review-Url: https://codereview.chromium.org/2174123002
Cr-Commit-Position: refs/heads/master@{#38110}
2016-07-28 04:57:18 +00:00
titzer
d9eb33582f [wasm] Remove special memory type for (internal) globals and use local type instead.
R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2165633006
Cr-Commit-Position: refs/heads/master@{#37945}
2016-07-21 12:35:10 +00:00
titzer
ff0b6d49ce [wasm] Remove the explicit count from WASM_BLOCK and WASM_LOOP macros.
R=ahaas@chromium.org, rossberg@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2170773003
Cr-Commit-Position: refs/heads/master@{#37939}
2016-07-21 11:06:19 +00:00