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  1. 14 Jun, 2019 1 commit
  3. 30 Nov, 2018 1 commit
    • Peter Marshall's avatar
      Revert "[runtime] Reduce spread/apply call max arguments" · ff0cf00c
      Peter Marshall authored 
      This reverts commit 4e3a17d0.

Reason for revert: Web compact issues, see crbug.com/910252

Original change's description:
> [runtime] Reduce spread/apply call max arguments
> 
> Bug: chromium:906043
> Change-Id: I308b29af0644c318d73926b27e65a94913c760c7
> Reviewed-on: https://chromium-review.googlesource.com/c/1346115
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57731}

TBR=jarin@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,bmeurer@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: chromium:906043
Change-Id: I240c1b55c10fd3e108e3c49f93ce1d9ca9c61780
Reviewed-on: https://chromium-review.googlesource.com/c/1356502Reviewed-by: 's avatarPeter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57956}
      ff0cf00c
  5. 22 Nov, 2018 1 commit
  7. 02 Jun, 2017 1 commit
  9. 07 Feb, 2017 1 commit
  11. 26 Jan, 2017 1 commit
  13. 20 Dec, 2016 1 commit
  15. 16 Dec, 2016 1 commit
  17. 04 Sep, 2015 3 commits
    • karl's avatar
      Reland: Speedup stringsearch for two byte strings · 24d48116
      karl authored 
      Uses the lower byte with memchr which is
significantly faster than a naive compare

Performance difference with bench (http://hastebin.com/xuxexataso.js):

old                             new

single character                single character
Κ found at 922                  Κ found at 922
3324                            616
㎡ found at 13217               ㎡ found at 13217
42366                           4931
က found at 4096                 က found at 4096
13369                           9836
＀ found at 65280                ＀ found at 65280
207472                          36149
ﾥ found at 65445                ﾥ found at 65445
209344                          36666
  found at 8197                   found at 8197
26731                           11757
倂 found at 20482               倂 found at 20482
66071                           17193

linear search                   linear search
ΚΛ found at 922                 ΚΛ found at 922
4112                            504
㎡㎢ found at 13217             ㎡㎢ found at 13217
55105                           5119
ﾥﾦ found at 65445               ﾥﾦ found at 65445
268016                          35496

linear + bmh search             linear + bmh search
ΚΛΜΝΞΟΠΡ found at 922           ΚΛΜΝΞΟΠΡ found at 922
2897                            522
ﾥﾦﾧﾨﾩﾪﾫﾬ found at 65445         ﾥﾦﾧﾨﾩﾪﾫﾬ found at 65445
167687                          35283

BUG=

Review URL: https://codereview.chromium.org/1324453007

Cr-Commit-Position: refs/heads/master@{#30597}
      24d48116
    • machenbach's avatar
      Revert of Speedup stringsearch for two byte strings (patchset #3 id:40001 of... · df966cd2
      machenbach authored 
      Revert of Speedup stringsearch for two byte strings (patchset #3 id:40001 of https://codereview.chromium.org/1303033012/ )

Reason for revert:
[Sheriff] Breaks fuzzer and msan:
http://build.chromium.org/p/client.v8/builders/V8%20Fuzzer/builds/4773

Repro with:
tools/fuzz-harness.sh out/Debug/d8
(in a ninja Debug build)

Msan:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/4097

Original issue's description:
> Speedup stringsearch for two byte strings
>
> Uses the lower byte with memchr which is
> significantly faster than a naive compare
>
> Performance difference with bench (http://hastebin.com/xuxexataso.js):
>
> old                             new
>
> single character                single character
> Κ found at 922                  Κ found at 922
> 3324                            616
> ㎡ found at 13217               ㎡ found at 13217
> 42366                           4931
> က found at 4096                 က found at 4096
> 13369                           9836
> ＀ found at 65280                ＀ found at 65280
> 207472                          36149
> ﾥ found at 65445                ﾥ found at 65445
> 209344                          36666
>   found at 8197                   found at 8197
> 26731                           11757
> 倂 found at 20482               倂 found at 20482
> 66071                           17193
>
> linear search                   linear search
> ΚΛ found at 922                 ΚΛ found at 922
> 4112                            504
> ㎡㎢ found at 13217             ㎡㎢ found at 13217
> 55105                           5119
> ﾥﾦ found at 65445               ﾥﾦ found at 65445
> 268016                          35496
>
> linear + bmh search             linear + bmh search
> ΚΛΜΝΞΟΠΡ found at 922           ΚΛΜΝΞΟΠΡ found at 922
> 2897                            522
> ﾥﾦﾧﾨﾩﾪﾫﾬ found at 65445         ﾥﾦﾧﾨﾩﾪﾫﾬ found at 65445
> 167687                          158465
>
> Committed: https://crrev.com/fced280f37588f8a232a414201276e053117e9ea
> Cr-Commit-Position: refs/heads/master@{#30587}

TBR=danno@chromium.org,mstarzinger@chromium.org,jkummerow@chromium.org,karl@skomski.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1331433002

Cr-Commit-Position: refs/heads/master@{#30588}
      df966cd2
    • karl's avatar
      Speedup stringsearch for two byte strings · fced280f
      karl authored 
      Uses the lower byte with memchr which is
significantly faster than a naive compare

Performance difference with bench (http://hastebin.com/xuxexataso.js):

old                             new

single character                single character
Κ found at 922                  Κ found at 922
3324                            616
㎡ found at 13217               ㎡ found at 13217
42366                           4931
က found at 4096                 က found at 4096
13369                           9836
＀ found at 65280                ＀ found at 65280
207472                          36149
ﾥ found at 65445                ﾥ found at 65445
209344                          36666
  found at 8197                   found at 8197
26731                           11757
倂 found at 20482               倂 found at 20482
66071                           17193

linear search                   linear search
ΚΛ found at 922                 ΚΛ found at 922
4112                            504
㎡㎢ found at 13217             ㎡㎢ found at 13217
55105                           5119
ﾥﾦ found at 65445               ﾥﾦ found at 65445
268016                          35496

linear + bmh search             linear + bmh search
ΚΛΜΝΞΟΠΡ found at 922           ΚΛΜΝΞΟΠΡ found at 922
2897                            522
ﾥﾦﾧﾨﾩﾪﾫﾬ found at 65445         ﾥﾦﾧﾨﾩﾪﾫﾬ found at 65445
167687                          158465

Review URL: https://codereview.chromium.org/1303033012

Cr-Commit-Position: refs/heads/master@{#30587}
      fced280f
  19. 01 Sep, 2011 1 commit
  21. 01 Oct, 2010 1 commit
  23. 11 Nov, 2009 1 commit
  25. 14 Oct, 2008 2 commits
  27. 09 Sep, 2008 1 commit
  29. 22 Aug, 2008 1 commit
    • christian.plesner.hansen's avatar
      Included mjsunit JavaScript test suite and C++ unit tests. · c42f5829
      christian.plesner.hansen authored 
      In the shell sample don't print the result of executing a script, only
evaluating expressions.

Fixed issue when building samples on Windows using a shared V8
library.  Added visibility option on Linux build which makes the
generated library 18% smaller.

Changed build system to accept multiple build modes in one build and
generate seperate objects, libraries and executables for each mode.

Removed deferred negation optimization (a * -b => -(a * b)) since this
visibly changes operand conversion order.

Improved parsing performance by introducing stack guard in preparsing.
Without a stack guard preparsing always bails out with stack overflow.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
      c42f5829
  31. 30 Jul, 2008 1 commit
    • kasper.lund's avatar
      Changed all text files to have native svn:eol-style. · 7276f14c
      kasper.lund authored 
      Added a few samples and support for building them. The samples include a simple shell that can be used to benchmark and test V8.

Changed V8::GetVersion to return the version as a string.

Added source for lazily loaded scripts to snapshots and made serialization non-destructive.

Improved ARM support by fixing the write barrier code to use aligned loads and stores and by removing premature locals optimization that relied on broken support for callee-saved registers (removed).

Refactored the code for marking live objects during garbage collection and the code for allocating objects in paged spaces. Introduced an abstraction for the map word of a heap-allocated object and changed the memory allocator to allocate executable memory only for spaces that may contain code objects.

Moved StringBuilder to utils.h and ScopedLock to platform.h, where they can be used by debugging and logging modules. Added thread-safe message queues for dealing with debugger events.

Fixed the source code reported by toString for certain builtin empty functions and made sure that the prototype property of a function is enumerable.

Improved performance of converting values to condition flags in generated code.

Merged disassembler-{arch} files.


git-svn-id: http://v8.googlecode.com/svn/trunk@8 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
      7276f14c
  33. 03 Jul, 2008 1 commit