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  33. 11 Nov, 2016 1 commit
    • titzer's avatar
      [wasm] Move all heap-allocated WASM structures into wasm-objects.h. · fa9c25ce
      titzer authored 
      This CL moves all heap-allocated WASM data structures, both ones
that are bonafide JSObjects and ones that are FixedArrays only, into a
consistent place with consistent layout. Note that not all accessors are complete, and I haven't fully spread the new static typing goodness
to all places in the code.

R=ahaas@chromium.org,rossberg@chromium.org
CC=gdeepti@chromium.org,mtrofin@chromium.org,clemensh@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2490663002
Cr-Commit-Position: refs/heads/master@{#40913}
      fa9c25ce
  35. 12 Oct, 2016 1 commit
    • clemensh's avatar
      [wasm] Provide better stack traces for asm.js code · 5d9fa102
      clemensh authored 
      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}
      5d9fa102
  37. 29 Sep, 2016 1 commit
  39. 27 Sep, 2016 1 commit
    • titzer's avatar
      [wasm] Master CL for Binary 0xC changes. · 28392ab1
      titzer authored 
      [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}
      28392ab1
  41. 23 Sep, 2016 2 commits
    • machenbach's avatar
      Revert of [wasm] Master CL for Binary 0xC changes. (patchset #26 id:490001 of... · e1eee748
      machenbach authored 
      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}
      e1eee748
    • titzer's avatar
      [wasm] Master CL for Binary 0xC changes. · 76eb976a
      titzer authored 
      [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}
      76eb976a
  43. 19 Sep, 2016 1 commit
  45. 12 Sep, 2016 1 commit
    • mtrofin's avatar
      [wasm] Compilation/Instantiation pipeline works off module object · 8e5ac62d
      mtrofin authored 
      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}
      8e5ac62d
  47. 01 Sep, 2016 1 commit
    • mtrofin's avatar
      [wasm] consolidate wasm and asm.js module compilation sequence · 5f8a6ec4
      mtrofin authored 
      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}
      5f8a6ec4
  49. 23 Aug, 2016 1 commit
  51. 22 Aug, 2016 2 commits
  53. 19 Aug, 2016 1 commit
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  59. 13 Jul, 2016 1 commit