Skip to content

V
V8
Switch branch/tag
  1. 04 Aug, 2016 2 commits
  3. 03 Aug, 2016 2 commits
  5. 02 Aug, 2016 2 commits
  7. 28 Jul, 2016 2 commits
    • cbruni's avatar
      [api] Introduce fast instantiations cache · f3f738fe
      cbruni authored 
      This CL introduces a new fast flat instantiations cache for the first 1024 object templates.
After that we fall back to the existing slower dictionary cache.

Drive-by-fix: de-handlify and clean up some code in api-natives.cc

BUG=chromium:630217

Review-Url: https://codereview.chromium.org/2170743003
Cr-Commit-Position: refs/heads/master@{#38146}
      f3f738fe
    • ddchen's avatar
      [wasm] Add support for multiple indirect function tables · 0a9d4003
      ddchen authored 
      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}
      0a9d4003
  9. 26 Jul, 2016 1 commit
  11. 25 Jul, 2016 2 commits
  13. 22 Jul, 2016 1 commit
  15. 21 Jul, 2016 3 commits
  17. 20 Jul, 2016 1 commit
  19. 16 Jul, 2016 1 commit
  21. 15 Jul, 2016 2 commits
  23. 14 Jul, 2016 3 commits
  25. 13 Jul, 2016 1 commit
  27. 12 Jul, 2016 1 commit
  29. 11 Jul, 2016 1 commit
  31. 08 Jul, 2016 2 commits
  33. 05 Jul, 2016 1 commit
    • ahaas's avatar
      [wasm] Copy the signature when compiling an imported function. · 65415ca7
      ahaas authored 
      The signature of an imported function is needed to compile a wrapper in
wasm to call the imported function. The signature is stored in a heap
object which is created when the wasm module is compiled. With this CL
we do not use a pointer to the signature in the heap object but instead
copy the signature and then use a pointer to the copy. A pointer into
a heap object causes problems when a GC is happening.

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

Review-Url: https://codereview.chromium.org/2124743002
Cr-Commit-Position: refs/heads/master@{#37527}
      65415ca7
  35. 04 Jul, 2016 1 commit
  37. 01 Jul, 2016 2 commits
  39. 30 Jun, 2016 2 commits
    • ahaas's avatar
      [wasm] Detect unrepresentability in the float32-to-int32 conversion correctly on arm. · de369129
      ahaas authored 
      In the current implementation of wasm an unrepresentable input of the
float32-to-int32 conversion is detected by first truncating the input, then
converting the truncated input to int32 and back to float32, and then checking
whether the result is the same as the truncated input.

This input check does not work on arm and arm64 for an input of (INT32_MAX + 1)
because on these platforms the float32-to-int32 conversion results in INT32_MAX
if the input is greater than INT32_MAX.  When INT32_MAX is converted back to
float32, then the result is (INT32_MAX + 1) again because INT32_MAX cannot be
represented precisely as float32, and rounding-to-nearest results in (INT32_MAX
+ 1). Since (INT32_MAX + 1) equals the truncated input value, the input appears
to be representable.

With the changes in this CL, the result of the float32-to-int32 conversion is
incremented by 1 if the original result was INT32_MAX. Thereby the detection of
unrepresenable inputs in wasm works. Note that since INT32_MAX cannot be
represented precisely in float32, it can also never be a valid result of the
float32-to-int32 conversion.

@v8-mips-ports, can you do a similar implementation for mips?

R=titzer@chromium.org, Rodolph.Perfetta@arm.com

Review-Url: https://codereview.chromium.org/2105313002
Cr-Commit-Position: refs/heads/master@{#37448}
      de369129
    • titzer's avatar
      [wasm] Disassemble wasm code from script · d249efd7
      titzer authored 
      This stores the wasm object and the function index in the script, and
adds functions to get the disassembled wasm code as well as the offset
table mapping from byte position to line and column in the disassembly
solely from the script.
This will be used to show "ui source code" in DevTools, and map raw
locations from the stack trace into this code view.

R=yangguo@chromium.org, ahaas@chromium.org, titzer@chromium.org
BUG=chromium:613110

patch from issue 2063013004 at patchset 80001 (http://crrev.com/2063013004#ps80001)

Review-Url: https://codereview.chromium.org/2105303002
Cr-Commit-Position: refs/heads/master@{#37430}
      d249efd7
  41. 29 Jun, 2016 7 commits