Skip to content

V
V8
Switch branch/tag
  1. 18 Aug, 2015 2 commits
  3. 13 Aug, 2015 2 commits
  5. 10 Aug, 2015 1 commit
  7. 07 Aug, 2015 1 commit
    • titzer's avatar
      [turbofan] Remove kInterpreterDispatch CallDescriptor kind in favor of flag. · 8b56ec9c
      titzer authored 
      Rationale: The {kind} of a call descriptor describes what the {target} being
called is--i.e. a JSFunction, code object, or address. That kind materially
dictates the instruction(s) generated for an outgoing call.

The other flags on a call descriptor should describe specific properties
(like whether a roots register is valid or not) so that backend logic doesn't
have to switch over the kind, but is informed directly of what it wants to
know.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1268273003

Cr-Commit-Position: refs/heads/master@{#30065}
      8b56ec9c
  9. 06 Aug, 2015 1 commit
  11. 31 Jul, 2015 1 commit
  13. 30 Jul, 2015 4 commits
  15. 27 Jul, 2015 1 commit
  17. 23 Jul, 2015 1 commit
    • rmcilroy's avatar
      [interpreter] Add basic framework for bytecode handler code generation. · 7877c4e0
      rmcilroy authored 
      Adds basic support for generation of interpreter bytecode handler code
snippets. The InterpreterAssembler class exposes a set of low level,
interpreter specific operations which can be used to build a Turbofan
graph. The Interpreter class generates a bytecode handler snippet for
each bytecode by assembling operations using an InterpreterAssembler.

Currently only two simple bytecodes are supported: LoadLiteral0 and Return.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1239793002

Cr-Commit-Position: refs/heads/master@{#29814}
      7877c4e0
  19. 22 Jul, 2015 2 commits
  21. 21 Jul, 2015 1 commit
  23. 20 Jul, 2015 1 commit
    • danno's avatar
      [turbofan]: Add a context relaxation Reducer · cca5e74a
      danno authored 
      In many cases, the context that TurboFan's ASTGraphBuilder or subsequent
reduction operations attaches to nodes does not need to be that exact
context, but rather only needs to be one with the same native context,
because it is used internally only to fetch the native context, e.g. for
creating and throwing exceptions.

This reducer recognizes common cases where the context that is specified
for a node can be relaxed to a canonical, less specific one. This
relaxed context can either be the enclosing function's context or a specific
Module or Script context that is explicitly created within the function.

This optimization is especially important for TurboFan-generated code stubs
which use context specialization and inlining to generate optimal code.
Without context relaxation, many extraneous moves are generated to pass
exactly the right context to internal functions like ToNumber and
AllocateHeapNumber, which only need the native context. By turning context
relaxation on, these moves disappear because all these common internal
context uses are unified to the context passed into the stub function, which
is typically already in the correct context register and remains there for
short stubs. It also eliminates the explicit use of a specialized context
constant in the code stub in these cases, which could cause memory leaks.

Review URL: https://codereview.chromium.org/1244583003

Cr-Commit-Position: refs/heads/master@{#29763}
      cca5e74a
  25. 13 Jul, 2015 5 commits
  27. 08 Jul, 2015 3 commits
  29. 07 Jul, 2015 1 commit
  31. 03 Jul, 2015 2 commits
  33. 02 Jul, 2015 1 commit
  35. 30 Jun, 2015 4 commits
  37. 26 Jun, 2015 2 commits
  39. 25 Jun, 2015 3 commits
  41. 24 Jun, 2015 1 commit
    • danno's avatar
      Use big-boy Types to annotate interface descriptor parameters · c019d7f4
      danno authored 
      - Thread Type::FunctionType through stubs and the TF pipeline.
- Augment Typer to decorate parameter nodes with types from
  a Type::FunctionType associated with interface descriptors.
- Factor interface descriptors into platform-specific and
  platform-independent components so that all descriptors share
  a common Type::FunctionType for all platforms.

Review URL: https://codereview.chromium.org/1197703002

Cr-Commit-Position: refs/heads/master@{#29248}
      c019d7f4