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  1. 11 Jan, 2017 1 commit
    • rmcilroy's avatar
      [compiler] Collect eager inner functions for compilation during renumbering. · a3052cfe
      rmcilroy authored 
      This CL modifies the ast-numbering phase to collect function literals which
should be compiled eagerly. This is then used to eagerly compile the inner
functions before compiling the outer function. This will be used to queue
compilation jobs on the CompilerDispatcher in a later CL.

This CL moves the compilation of eager inner functions out of the
GetSharedFunctionInfo function and instead compiles them explicitly. This
simplifies GetSharedFunctionInfo and also means there is no need to pass a
LazyCompilationMode to the function, so this concept has been removed.

BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2618553004
Cr-Commit-Position: refs/heads/master@{#42221}
      a3052cfe
  3. 09 Jan, 2017 2 commits
  5. 06 Jan, 2017 1 commit
  7. 05 Jan, 2017 1 commit
  9. 22 Dec, 2016 3 commits
  11. 21 Dec, 2016 2 commits
    • mvstanton's avatar
      [TypeFeedbackVector] Root literal arrays in function literals slots · 93df0940
      mvstanton authored 
      Literal arrays and feedback vectors for a function can be garbage
collected if we don't have a rooted closure for the function, which
happens often. It's expensive to come back from this (recreating
boilerplates and gathering feedback again), and the cost is
disproportionate if the function was inlined into optimized code.

To guard against losing these arrays when we need them, we'll now
create literal arrays when creating the feedback vector for the outer
closure, and root them strongly in that vector.

BUG=v8:5456

Review-Url: https://codereview.chromium.org/2504153002
Cr-Commit-Position: refs/heads/master@{#41893}
      93df0940
    • jgruber's avatar
      [regexp] Remove IsRegExp intrinsic · c9cb94a0
      jgruber authored 
      The two remaining uses of this intrinsic in debug.js and mirrors.js now
simply rely on the runtime function.

BUG=v8:5339

Review-Url: https://codereview.chromium.org/2591923003
Cr-Commit-Position: refs/heads/master@{#41892}
      c9cb94a0
  13. 16 Dec, 2016 1 commit
  15. 05 Dec, 2016 1 commit
  17. 29 Nov, 2016 1 commit
    • mstarzinger's avatar
      [fullcodegen] Remove with-statement support. · 957f3f10
      mstarzinger authored 
      This removes support for dynamic scoping via with-statement constructs
from the {FullCodeGenerator}. Consequently optimized code containing
such constructs must use the {BytecodeGraphBuilder} and can no longer
use the {AstGraphBuilder} for graph building.

R=rmcilroy@chromium.org
BUG=v8:5657

Review-Url: https://codereview.chromium.org/2533283002
Cr-Commit-Position: refs/heads/master@{#41365}
      957f3f10
  19. 28 Nov, 2016 1 commit
  21. 25 Nov, 2016 2 commits
  23. 24 Nov, 2016 1 commit
  25. 02 Nov, 2016 2 commits
    • verwaest's avatar
      Thread decls-list through Declaration using a ThreadedList · 5a18685e
      verwaest authored 
      This reduces per-scope overhead from minimally 6 words to 2 words, with one additional pointer per entry, rather than an average of 2 per entry for larger-than-4 element lists. For temp zone parsed functions it additionally makes the declaration-list actually freeable.

This introduces ThreadedList to implement the details of dealing with such a list.

BUG=v8:5209

Review-Url: https://codereview.chromium.org/2457393003
Cr-Commit-Position: refs/heads/master@{#40703}
      5a18685e
    • bmeurer's avatar
      [compiler] Sanitize IC counts for vector based ICs. · 5ef1bddf
      bmeurer authored 
      All vector ICs use the TypeFeedbackVector::ComputeCounts method now,
while the remaining patching ICs still use the traditional way of
counting on the TypeFeedbackInfo hanging off the fullcodegen code
object. This fixes the problem that counts were sometimes off.

Drive-by-fix: Move FullCodeGenerator::CallIC to fullcodegen.cc.

R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2472653002
Cr-Commit-Position: refs/heads/master@{#40690}
      5ef1bddf
  27. 25 Oct, 2016 1 commit
    • jgruber's avatar
      [regexp] Remove unused code · 77ddcfb3
      jgruber authored 
      This CL removes code that is now unused since the port of regexp.js has been
completed. Removed functions / classes are:

* regexp.js (GetSubstitution moved to string.js)
* RegExpConstructResult stub
* RegExpFlags intrinsic
* RegExpSource intrinsic
* RegExpInitializeAndCompile runtime function

BUG=v8:5339

Review-Url: https://codereview.chromium.org/2448463002
Cr-Commit-Position: refs/heads/master@{#40547}
      77ddcfb3
  29. 24 Oct, 2016 1 commit
    • adamk's avatar
      [full-codegen] Eliminate unnecessary hole checks for stores · 231c8ac0
      adamk authored 
      Loads already used source position elimination to avoid unnecessary hole checks,
but for reasons unknown stores did not. This CL corrects that, making full-codegen's
hole elimination equivalent to ignition's.

Also introduced a HoleCheckMode enum class to avoid more bool flags and updated
VariableProxy and BytecodeGenerator appropriately.

Review-Url: https://codereview.chromium.org/2441543005
Cr-Commit-Position: refs/heads/master@{#40522}
      231c8ac0
  31. 20 Oct, 2016 1 commit
    • adamk's avatar
      [ignition] Eliminate hole checks where statically possible for loads and stores · 35a3ccbf
      adamk authored 
      Move hole check logic from full-codegen into scope analysis, and store the
"needs hole check" bit on VariableProxy. This makes it easy to re-use in
any backend: it will be trivial to extend the use of this logic in, e.g.,
full-codegen variable stores.

While changing the signatures of the variable loading/storing methods in
Ignition, I took the liberty of replacing the verb "Visit" with "Build", since these
are not part of AST visiting.

BUG=v8:5460

Review-Url: https://chromiumcodereview.appspot.com/2411873004
Cr-Commit-Position: refs/heads/master@{#40479}
      35a3ccbf
  33. 18 Oct, 2016 1 commit
  35. 28 Sep, 2016 1 commit
  37. 26 Sep, 2016 2 commits
    • bmeurer's avatar
      Revert of [compiler] Properly guard the speculative optimizations for... · b9cdb630
      bmeurer authored 
      Revert of [compiler] Properly guard the speculative optimizations for instanceof. (patchset #3 id:40001 of https://codereview.chromium.org/2370693002/ )

Reason for revert:
Tanks EarleyBoyer.

Original issue's description:
> [compiler] Properly guard the speculative optimizations for instanceof.
>
> Add a general feedback slot for instanceof similar to what we already have
> for for-in, which basically has a fast (indicated by the uninitialized
> sentinel) and a slow (indicated by the megamorphic sentinel) mode. Now
> we can only take the fast path when the feedback slot says it hasn't
> seen any funky inputs and nothing funky appeared in the prototype chain.
> In the TurboFan code we also deoptimize whenever we see a funky object
> (i.e. a proxy or an object that requires access checks) in the prototype
> chain (similar to what Crankshaft already did).
>
> Drive-by-fix: Also make Crankshaft respect the mode and therefore
> address the deopt loop in Crankshaft around instanceof.
>
> We might want to introduce an InstanceOfIC mechanism at some point and
> track the map of the right-hand side.
>
> BUG=v8:5267
> R=mvstanton@chromium.org
>
> Committed: https://crrev.com/a0484bc6116ebc2b855de87d862945e2ae07169b
> Cr-Commit-Position: refs/heads/master@{#39718}

TBR=mvstanton@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267

Review-Url: https://codereview.chromium.org/2365223003
Cr-Commit-Position: refs/heads/master@{#39736}
      b9cdb630
    • bmeurer's avatar
      [compiler] Properly guard the speculative optimizations for instanceof. · a0484bc6
      bmeurer authored 
      Add a general feedback slot for instanceof similar to what we already have
for for-in, which basically has a fast (indicated by the uninitialized
sentinel) and a slow (indicated by the megamorphic sentinel) mode. Now
we can only take the fast path when the feedback slot says it hasn't
seen any funky inputs and nothing funky appeared in the prototype chain.
In the TurboFan code we also deoptimize whenever we see a funky object
(i.e. a proxy or an object that requires access checks) in the prototype
chain (similar to what Crankshaft already did).

Drive-by-fix: Also make Crankshaft respect the mode and therefore
address the deopt loop in Crankshaft around instanceof.

We might want to introduce an InstanceOfIC mechanism at some point and
track the map of the right-hand side.

BUG=v8:5267
R=mvstanton@chromium.org

Review-Url: https://codereview.chromium.org/2370693002
Cr-Commit-Position: refs/heads/master@{#39718}
      a0484bc6
  39. 24 Sep, 2016 1 commit
  41. 23 Sep, 2016 3 commits
  43. 06 Sep, 2016 2 commits
    • bakkot's avatar
      Split the AST representation of class properties from object properties. · 7bc200c7
      bakkot authored 
      This introduces ClassLiteralProperty and a supertype LiteralProperty of
it and ObjectLiteralProperty. It also splits the parsing of the two.
This substiantially clarifies some logic, especially as classes
continue to evolve, and is also about a 2% performance improvement to
parsing either kind of property (since no work is wasted on logic
only necessary for the other kind). Also, it saves a word on
ObjectLiteralProperties.

Review-Url: https://codereview.chromium.org/2302643002
Cr-Commit-Position: refs/heads/master@{#39219}
      7bc200c7
    • marja's avatar
      Include only stuff you need, part 8: Fix debug.h -> liveedit.h. · 51a3ffd9
      marja authored 
      Rebuilding (after touching certain files) is crazy slow because
includes are out of control.

The (last remaining) offending include path is: ast.h <- liveedit.h <-
debug.h <- src/x64/assembler-whatever-port-inl.h <-
src/macro-assembler.h <- everything possible

With this CL, the rebuild steps needed when touching ast-value-factory.h
drops from 365 to 181.

BUG=v8:5294
TBR=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2316443002
Cr-Commit-Position: refs/heads/master@{#39195}
      51a3ffd9
  45. 05 Sep, 2016 1 commit
  47. 31 Aug, 2016 1 commit
  49. 25 Aug, 2016 1 commit
    • rmcilroy's avatar
      [Compiler] Add compile operations to CompilerDispatcherJob. · c2d2d4d1
      rmcilroy authored 
      Adds compile operations to the CompilerDispatcherJob interface. As such,
introduces Compiler::PrepareUnoptimizedCompilationJob and updates the
unoptimized compilation path to use CompilationJobs. Also unifies
FinalizeCompilationJob to deal with both optimized and unoptimized
compilation jobs.

A dummy FullCodegenCompilationJob is also introduced, where all the work
is done in the ExecuteJob phase, which cannot be run on a
background thread.

BUG=v8:5203

Review-Url: https://codereview.chromium.org/2251713002
Cr-Commit-Position: refs/heads/master@{#38897}
      c2d2d4d1
  51. 17 Aug, 2016 1 commit
    • rmcilroy's avatar
      Avoid accessing Isolate in source position logging. · b8b4a443
      rmcilroy authored 
      Now that all backends use the source position builder to record source
positions, simplify the code line logging events to take a source
position table on code creation. This means that the source position
table builder no longer needs to access the isolate until the table is
generated. This is required for off-thread bytecode generation.

BUG=v8:5203

Review-Url: https://codereview.chromium.org/2248673002
Cr-Commit-Position: refs/heads/master@{#38676}
      b8b4a443
  53. 25 Jul, 2016 1 commit
  55. 22 Jul, 2016 1 commit
    • yangguo's avatar
      [debug] use catch prediction flag for promise rejections. · 6d0a4202
      yangguo authored 
      This is in preparation to implementing exception prediction for async
functions.  Each handler table entry can now predict "caught", "uncaught", or
"promise". The latter indicates that the exception will lead to a promise
rejection.

To mark the relevant try-catch blocks, we add a new native syntax.
try { } %catch (e) { } indicates a TryCatchStatement with the "promise"
prediction.

The previous implementation of using the function to tell the relevant
try-catch apart from inner try-catch blocks will not work for async functions
since these can have inner try-catch blocks inside the same function.

BUG=v8:5167

Review-Url: https://codereview.chromium.org/2161263003
Cr-Commit-Position: refs/heads/master@{#37966}
      6d0a4202
  57. 15 Jul, 2016 1 commit
    • verwaest's avatar
      Templatize AstVisitor with its subclass · ebf166df
      verwaest authored 
      This replaces the vtable on AstNode with a NodeType tag. The visitors replace double dispatch with a single switch over the NodeType.

For now, visitors with subclasses still have virtual methods themselves. We should probably specialize them later as well.

The uint8_t NodeType allows us to better pack memory, saving 8-16 bytes on many AST nodes (with additional packing that I'll do in a follow-up CL)

BUG=

Review-Url: https://codereview.chromium.org/2142233003
Cr-Commit-Position: refs/heads/master@{#37788}
      ebf166df
  59. 12 Jul, 2016 1 commit