[wasm] Fix memory initialization on instantiate

Memory instantiate on initialize should always patch memory
references. If memory references are not patched for no initial
memory, on subsequent calls to grow_memory in wasm functions for
instances that share a module, the references will be patched
without resetting cloned compiled values to their correct initial
values.

BUG=chromium:763439

Change-Id: I666439332379b02aa344e99d61ef3dc88ab86cc8
Reviewed-on: https://chromium-review.googlesource.com/674707
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48097}
3 files changed
tree: 1aea96c8b7feb6e439238265045db4f8f6fada4d
  1. .clang-format
  2. .editorconfig
  3. .gitignore
  4. .gn
  5. .ycm_extra_conf.py
  6. AUTHORS
  7. BUILD.gn
  8. CODE_OF_CONDUCT.md
  9. ChangeLog
  10. DEPS
  11. LICENSE
  12. LICENSE.fdlibm
  13. LICENSE.strongtalk
  14. LICENSE.v8
  15. LICENSE.valgrind
  16. Makefile
  17. Makefile.android
  18. OWNERS
  19. PRESUBMIT.py
  20. README.md
  21. WATCHLISTS
  22. benchmarks/
  23. build_overrides/
  24. codereview.settings
  25. docs/
  26. gni/
  27. gypfiles/
  28. include/
  29. infra/
  30. samples/
  31. snapshot_toolchain.gni
  32. src/
  33. test/
  34. testing/
  35. third_party/
  36. tools/
README.md

V8 JavaScript Engine

V8 is Google's open source JavaScript engine.

V8 implements ECMAScript as specified in ECMA-262.

V8 is written in C++ and is used in Google Chrome, the open source browser from Google.

V8 can run standalone, or can be embedded into any C++ application.

V8 Project page: https://github.com/v8/v8/wiki

Getting the Code

Checkout depot tools, and run

    fetch v8

This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run

    git pull origin
    gclient sync

For fetching all branches, add the following into your remote configuration in .git/config:

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*

Contributing

Please follow the instructions mentioned on the V8 wiki.