This CL covers only the very simple cases.
BUG=v8:5516
R=vogelheim@chromium.org
Change-Id: Ib6ddc90cbcf1c923a7b72493cfd029cfa835462b
Reviewed-on: https://chromium-review.googlesource.com/440246
Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43086}
Reason for revert:
False alarm, bot hiccup
Original issue's description:
> Revert of Reland: [Parse] ParseInfo owns the parsing Zone. (patchset #7 id:140001 of https://codereview.chromium.org/2632123006/ )
>
> Reason for revert:
> Speculative revert because of revert needed for https://codereview.chromium.org/2632123006
>
> Original issue's description:
> > Reland: [Parse] ParseInfo owns the parsing Zone.
> >
> > Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> > in preperation for enabling background compilation jobs for inner functions
> > share the AST in the outer-function's parse zone memory (read-only), with the
> > and zone being released when all compilation jobs have completed.
> >
> > BUG=v8:5203,v8:5215
> >
> > Review-Url: https://codereview.chromium.org/2632123006
> > Cr-Original-Commit-Position: refs/heads/master@{#42993}
> > Committed: 14fb337200
> > Review-Url: https://codereview.chromium.org/2632123006
> > Cr-Commit-Position: refs/heads/master@{#42996}
> > Committed: 9e7d5a6065
>
> TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:5203,v8:5215
>
> Review-Url: https://codereview.chromium.org/2683733002
> Cr-Commit-Position: refs/heads/master@{#43008}
> Committed: 9fe08ec067TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2679303003
Cr-Commit-Position: refs/heads/master@{#43015}
Reason for revert:
False alarm, bot hiccup
Original issue's description:
> Revert of [parsing] Fix maybe-assigned for loop variables. (patchset #3 id:40001 of https://codereview.chromium.org/2673403003/ )
>
> Reason for revert:
> Speculative revert because of https://codereview.chromium.org/2679163002/.
>
> Original issue's description:
> > [parsing] Fix maybe-assigned for loop variables.
> >
> > Due to hoisting, the value of a 'var'-declared variable may actually change even
> > if the code contains only the "initial" assignment, namely when that assignment
> > occurs inside a loop. For example:
> >
> > let i = 10;
> > do { var x = i } while (i--):
> >
> > As a simple and very conservative approximation of this, we explicitly mark
> > as maybe-assigned any non-lexical variable whose "declaration" does not
> > syntactically occur in the function scope. (In the example above, it
> > occurs in a block scope.)
> >
> > BUG=v8:5636
> >
> > Review-Url: https://codereview.chromium.org/2673403003
> > Cr-Commit-Position: refs/heads/master@{#42989}
> > Committed: a33fcd663b
>
> TBR=marja@chromium.org,adamk@chromium.org,neis@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:5636
>
> Review-Url: https://codereview.chromium.org/2679263002
> Cr-Commit-Position: refs/heads/master@{#43010}
> Committed: f3ae5ccf57TBR=marja@chromium.org,adamk@chromium.org,neis@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5636
Review-Url: https://codereview.chromium.org/2686663002
Cr-Commit-Position: refs/heads/master@{#43013}
Reason for revert:
Speculative revert because of https://codereview.chromium.org/2679163002/.
Original issue's description:
> [parsing] Fix maybe-assigned for loop variables.
>
> Due to hoisting, the value of a 'var'-declared variable may actually change even
> if the code contains only the "initial" assignment, namely when that assignment
> occurs inside a loop. For example:
>
> let i = 10;
> do { var x = i } while (i--):
>
> As a simple and very conservative approximation of this, we explicitly mark
> as maybe-assigned any non-lexical variable whose "declaration" does not
> syntactically occur in the function scope. (In the example above, it
> occurs in a block scope.)
>
> BUG=v8:5636
>
> Review-Url: https://codereview.chromium.org/2673403003
> Cr-Commit-Position: refs/heads/master@{#42989}
> Committed: a33fcd663bTBR=marja@chromium.org,adamk@chromium.org,neis@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5636
Review-Url: https://codereview.chromium.org/2679263002
Cr-Commit-Position: refs/heads/master@{#43010}
Reason for revert:
Speculative revert because of revert needed for https://codereview.chromium.org/2632123006
Original issue's description:
> Reland: [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203,v8:5215
>
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Original-Commit-Position: refs/heads/master@{#42993}
> Committed: 14fb337200
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42996}
> Committed: 9e7d5a6065TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2683733002
Cr-Commit-Position: refs/heads/master@{#43008}
... and TypeFeedbackMetadata to FeedbackMetadata.
BUG=
Change-Id: I2556d1c2a8f37b8cf3d532cc98d973b6dc7e9e6c
Reviewed-on: https://chromium-review.googlesource.com/439244
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#42999}
Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
in preperation for enabling background compilation jobs for inner functions
share the AST in the outer-function's parse zone memory (read-only), with the
and zone being released when all compilation jobs have completed.
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2632123006
Cr-Original-Commit-Position: refs/heads/master@{#42993}
Committed: 14fb337200
Review-Url: https://codereview.chromium.org/2632123006
Cr-Commit-Position: refs/heads/master@{#42996}
Reason for revert:
doesn't compile on ToT
Original issue's description:
> Reland: [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203,v8:5215
>
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42993}
> Committed: 14fb337200TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2685543003
Cr-Commit-Position: refs/heads/master@{#42994}
Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
in preperation for enabling background compilation jobs for inner functions
share the AST in the outer-function's parse zone memory (read-only), with the
and zone being released when all compilation jobs have completed.
BUG=v8:5203,v8:5215
Review-Url: https://codereview.chromium.org/2632123006
Cr-Commit-Position: refs/heads/master@{#42993}
Due to hoisting, the value of a 'var'-declared variable may actually change even
if the code contains only the "initial" assignment, namely when that assignment
occurs inside a loop. For example:
let i = 10;
do { var x = i } while (i--):
As a simple and very conservative approximation of this, we explicitly mark
as maybe-assigned any non-lexical variable whose "declaration" does not
syntactically occur in the function scope. (In the example above, it
occurs in a block scope.)
BUG=v8:5636
Review-Url: https://codereview.chromium.org/2673403003
Cr-Commit-Position: refs/heads/master@{#42989}
The existing unit test explicitly checked for this case, but was - under
the right circumstances - defeated by the optimization to not re-run the
whole position search if we were close enough.
BUG=chromium:685618
Review-Url: https://codereview.chromium.org/2663883002
Cr-Commit-Position: refs/heads/master@{#42794}
Downside: this adds all kinds of weird includes in the .cc files.
(See design doc linked in the bug.)
BUG=v8:5402
Review-Url: https://codereview.chromium.org/2622503002
Cr-Commit-Position: refs/heads/master@{#42140}
Reason for revert:
LiveEdit is broken in some cases.
Original issue's description:
> Store SharedFunctionInfos of a Script in a FixedArray indexed by their ID
>
> Now that SharedFunctionInfos have a unique ID (and the IDs are dense),
> we can use them as an index into an array, instead of using a
> WeakFixedArray where we have to do a linear scan.
>
> Hooking up liveedit is a bit more involved, see
> https://docs.google.com/presentation/d/1FtNa3U7WsF5bPhY9uGoJG5Y9hnz5VBDabfOWpb4unWI/edit
> for an overview
>
> BUG=v8:5589
> R=verwaest@chromium.org,jgruber@chromium.org
>
> Committed: https://crrev.com/6595e7405769dc9d49e9568d61485efc6d468baf
> Cr-Commit-Position: refs/heads/master@{#41600}
TBR=jgruber@chromium.org,verwaest@chromium.org,yangguo@chromium.org,jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:5589,chromium:673950
NOPRESUBMIT=true
Review-Url: https://codereview.chromium.org/2578433002
Cr-Commit-Position: refs/heads/master@{#41684}
Some minifiers use the pattern !function ... () for JS code that should
be immediately executed. This change recognizes that pattern and treats
it equally to parenthesized functions.
A bit more background info is in the referenced bug.
R=verwaest@chromium.org
BUG=v8:5643
Review-Url: https://codereview.chromium.org/2509143003
Cr-Commit-Position: refs/heads/master@{#41114}
Removed a wrong condition test in TwoByteExternalBufferedStream. This changed fixes errors that may occur under some conditions.
Review-Url: https://codereview.chromium.org/2469723002
Cr-Commit-Position: refs/heads/master@{#40722}
- Eliminates *all* copies in the process.
- Moves (nearly) all functionality into Scanner::BookmarkScope.
- Significant code reduction.
[Needs to be rebased once crrev.com/2347883002 lands. All changes in *parser* are from that CL.]
R=marja@chromium.org
BUG=v8:4947
Review-Url: https://codereview.chromium.org/2341323002
Cr-Commit-Position: refs/heads/master@{#39554}
This is in preparation for upcmoming scanner + bookmarking cleanups.
Also, drive-by fix for setting a bookmark close to the end of the stream,
when the look-ahead character (c0_) is kEndOfInput, which the bookmarking
logic also used as kNoBookmark.
R=marja@chomium.org
BUG=v8:4947
Review-Url: https://codereview.chromium.org/2345053003
Cr-Commit-Position: refs/heads/master@{#39507}
- Smaller, more consistent streams API (Advance, Back, pos, Seek)
- Remove implementations from the header, in favor of creation functions.
Observe:
- Performance:
- All Utf16CharacterStream methods have an inlinable V8_LIKELY w/ a
body of only a few instructions. I expect most calls to end up there.
- There used to be performance problems w/ bookmarking, particularly
with copying too much data on SetBookmark w/ UTF-8 streaming streams.
All those copies are gone.
- The old streaming streams implementation used to copy data even for
2-byte input. It no longer does.
- The only remaining 'slow' method is the Seek(.) slow case for utf-8
streaming streams. I don't expect this to be called a lot; and even if,
I expect it to be offset by the gains in the (vastly more frequent)
calls to the other methods or the 'fast path'.
- If it still bothers us, there are several ways to speed it up.
- API & code cleanliness:
- I want to remove the 'old' API in a follow-up CL, which should mostly
delete code, or replace it 1:1.
- In a 2nd follow-up I want to delete much of the UTF-8 handling in Blink
for streaming streams.
- The "bookmark" is now always implemented (and mostly very fast), so we
should be able to use it for more things.
- Testing & correctness:
- The unit tests now cover all stream implementations,
and are pretty good and triggering all the edge cases.
- Vastly more DCHECKs of the invariants.
BUG=v8:4947
Review-Url: https://codereview.chromium.org/2314663002
Cr-Commit-Position: refs/heads/master@{#39464}
