- 21 Oct, 2019 1 commit
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Jakob Gruber authored
.. similar to how it is applied in the interpreter. We reserve a stack slot for the backtrack count, increment it on each backtrack, and fail if the limit is hit. Bug: v8:9695 Change-Id: I835888c612d6c8bfa2f34e73ab8c8241dcabc6ed Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864938Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#64426}
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- 19 Sep, 2019 1 commit
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Jakob Gruber authored
This CL allows us to distinguish between the host- and target OS. The host OS is defined by V8_OS_ macros (e.g. V8_OS_WIN). The target OS is defined by V8_TARGET_OS_ macros (e.g. V8_TARGET_OS_WIN). V8_TARGET_OS_ macros are defined by gn, based on the `target_os` gn variable. If a V8_TARGET_OS_ is set, we also define V8_HAVE_TARGET_OS (this determines fall-back behavior in V8; if it is not defined, we set V8_TARGET_OS_ to equal the equivalent V8_OS_ define). Besides adding the defines, this CL also adds logic to consider the target OS in codegen. Specifically, x64 builds now look at the V8_TARGET_OS_WIN define instead of V8_OS_WIN or _WIN64. This effectively makes cross-compilation to x64 Windows in mksnapshot possible. In future work, we could add similar support for cross-compiling to other platforms such as ia32 Windows. Bug: v8:9736,chromium:803591 Change-Id: I689f3de8c206b743c4bef703f5ade0bba32ce995 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809374Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#63892}
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- 29 Aug, 2019 1 commit
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Jakob Gruber authored
Similar to CheckNotAtStart, one can now apply an offset to the CheckAtStart operation. Due to a recent change, all callsites of CheckNotAtStart now need to pass an offset, whereas previously the offset was just assumed to be zero. Bug: chromium:996391 Change-Id: Ia59a584e93e5384479f05abddef7859b420b023a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1773272 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#63444}
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- 25 Jul, 2019 1 commit
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Seth Brenith authored
The motivating example is JetStream 2's UniPoker test, which tests whether a sorted string of Unicode playing cards contains a five-card straight using a regular expression. In the top-level generated loop for this RegExp, we see this loop exit condition: 00000350000C2067 27 83fffe cmpl rdi,0xfe 00000350000C206A 2a 0f8da8e40000 jge 00000350000D0518 <+0xe4d8> Meaning if the current position is pointing at the very last (16-bit) character, then we exit the loop. Otherwise we go on and try to find various matches starting at the current position. However, we can see in the original expression that any possible match is at least 10 characters (5 astral-plane Unicode values), so we're wasting a lot of time attempting to find matches in cases where we're too close to the end of the string for any match to succeed. This example might be a bit contrived, but I expect that an improvement in this bounds check would help a larger family of regular expressions, where the minimum match length is large relative to the string being matched and we don't meet the other necessary criteria for fast Boyer- Moore lookahead. To get the desired bounds check in this case, this patch does the following: 1. Compute accurate EatsAtLeast values for every node during the analysis phase. This could end up doing more work than the current implementation, but analysis already has to touch every node, so it seems like a cache-friendly time to compute these values. In some cases, this might be less total work than the current implementation, because the current implementation might recompute the same node multiple times. 2. When emitting a quick check, use the EatsAtLeast value from the predecessor ChoiceNode for the bounds check. This improves the UniPoker score on my machine by about 4%, because it cuts the time spent checking for straights roughly in half, and checking for straights originally accounted for about 8% of the total time. Bug: v8:9305 Change-Id: I110b190c2578f73b2263259d5aa5750e921b01be Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1702125 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#62919}
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- 28 May, 2019 1 commit
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Yang Guo authored
Bug: v8:9247 Change-Id: I2f999ed3a8cc0931e5092f2ac6e709b8ff3f9e42 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630678 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#61896}
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- 21 May, 2019 1 commit
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Yang Guo authored
Bug: v8:9247 TBR=bmeurer@chromium.org,neis@chromium.org NOPRESUBMIT=true Change-Id: Ia1e49d1aac09c4ff9e05d58fab9d08dd71198878 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621931Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#61682}
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- 02 Apr, 2019 1 commit
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Sigurd Schneider authored
Bug: v8:9020 Change-Id: I405d27541f76d1347ae91e5ab426ede72edb1f32 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1541045 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#60573}
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- 31 Jan, 2019 1 commit
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Igor Sheludko authored
Bug: v8:8621, v8:8562 Change-Id: I79014f92ba95d21b31ff28cb615a01aa00d0d5d6 Reviewed-on: https://chromium-review.googlesource.com/c/1448271 Commit-Queue: Igor Sheludko <ishell@chromium.org> Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#59245}
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- 23 Jan, 2019 1 commit
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Jakob Gruber authored
For jitless mode, we must be able to switch between the native regexp engine and interpreted regexps at runtime since --jitless is itself a runtime flag. This CL unconditionally compiles in the regexp interpreter in all builds. It can be toggled through the --regexp-interpret-all flag. Bug: v8:7777, v8:8678 Change-Id: Iadd21a152de7c07586d5af32bee5fdf9931f1a01 Reviewed-on: https://chromium-review.googlesource.com/c/1408929 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#59041}
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- 17 Jan, 2019 1 commit
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Clemens Hammacher authored
and TurboAssembler. Instead of listing all the different combinations of arguments (which is one more now, temporarily), just forward all arguments down via MacroAssembler and TurboAssembler to TurboAssemblerBase. Interestingly, this requires more specific types sometimes (int instead of size_t), since further down the forwarding chain, the compiler does not recognize any more that the value is a constant, and emits a warning about a possibly truncating implicit conversion. R=mstarzinger@chromium.org Bug: v8:8689, v8:8562 Change-Id: Ifd13d2210ee64251c0075c0d9b68cacd5107d9ab Reviewed-on: https://chromium-review.googlesource.com/c/1414913Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#58869}
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- 21 Dec, 2018 1 commit
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Igor Sheludko authored
Bug: v8:8477, v8:8562 Change-Id: I28a8244ef22035db85b520d86aa6d5578c7c7f5d Reviewed-on: https://chromium-review.googlesource.com/c/1384309 Commit-Queue: Igor Sheludko <ishell@chromium.org> Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#58426}
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- 12 Nov, 2018 1 commit
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Jakob Kummerow authored
Bug: v8:3770 Change-Id: I413ce57f7fa91cef2445995ca22650477f92b0df Reviewed-on: https://chromium-review.googlesource.com/c/1321892Reviewed-by:
Dan Elphick <delphick@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#57445}
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- 18 Sep, 2018 1 commit
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Florian Sattler authored
Fixing clang-tidy warning. Bug: v8:8015 Change-Id: I46b96899f0a5973f2fbf8af94eb43d14955a3f45 Reviewed-on: https://chromium-review.googlesource.com/1227072Reviewed-by:
Yang Guo <yangguo@chromium.org> Commit-Queue: Florian Sattler <sattlerf@google.com> Cr-Commit-Position: refs/heads/master@{#55978}
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- 20 Jul, 2018 1 commit
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Simon Zünd authored
R=jgruber@chromium.org Bug: v8:7754 Change-Id: Iec5f0a3f4f948a5f55c112324f4db68c69df2dbd Reviewed-on: https://chromium-review.googlesource.com/1145061Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Simon Zünd <szuend@google.com> Cr-Commit-Position: refs/heads/master@{#54580}
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- 26 Apr, 2018 3 commits
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jgruber authored
This is a reland of f5d30851 Original change's description: > [builtins] Introduce further constant & external reference indirections > > This introduces further indirections for embedded constants and > external references for builtins generated by the macro-assembler. > The used mechanisms (LookupConstant and LookupExternalReference) are > identical to what we already use in CSA. > > Almost all builtins are now isolate-independent in both release and > debug modes. snapshot_blob.bin is roughly 670K smaller in embedded > builds vs. non-embedded builds, while libv8.so is roughly 280K larger. > > Bug: v8:6666 > Change-Id: I7a6c2193ef5a763e6cf7543dd51597d6fff6c110 > Reviewed-on: https://chromium-review.googlesource.com/1006581 > Commit-Queue: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Cr-Commit-Position: refs/heads/master@{#52810} TBR=mstarzinger@chromium.org Bug: v8:6666 Change-Id: I73dfe207f2c5f79a9a06c165c75f5619e88a5a17 Reviewed-on: https://chromium-review.googlesource.com/1030550Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#52819}
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jgruber authored
This reverts commit f5d30851. Breakages: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20noi18n%20-%20debug/builds/20370 https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20custom%20snapshot%20-%20debug/builds/21174 TBR=yangguo@chromium.org No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:6666 Change-Id: Ic4d28fccf647aadcac0a60430b7fb66d22ce4577 Reviewed-on: https://chromium-review.googlesource.com/1030431Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#52813}
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jgruber authored
This introduces further indirections for embedded constants and external references for builtins generated by the macro-assembler. The used mechanisms (LookupConstant and LookupExternalReference) are identical to what we already use in CSA. Almost all builtins are now isolate-independent in both release and debug modes. snapshot_blob.bin is roughly 670K smaller in embedded builds vs. non-embedded builds, while libv8.so is roughly 280K larger. Bug: v8:6666 Change-Id: I7a6c2193ef5a763e6cf7543dd51597d6fff6c110 Reviewed-on: https://chromium-review.googlesource.com/1006581 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#52810}
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- 13 Oct, 2017 1 commit
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Mathias Bynens authored
New code should use nullptr instead of NULL. This patch updates existing use of NULL to nullptr where applicable, making the code base more consistent. BUG=v8:6928,v8:6921 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng;master.tryserver.v8:v8_linux_noi18n_rel_ng Change-Id: I4687f5b96fcfd88b41fa970a2b937b4f6538777c Reviewed-on: https://chromium-review.googlesource.com/718338 Commit-Queue: Mathias Bynens <mathias@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#48557}
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- 27 Jan, 2016 1 commit
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yangguo authored
BUG=v8:2952 LOG=N Review URL: https://codereview.chromium.org/1599303002 Cr-Commit-Position: refs/heads/master@{#33538}
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- 17 Nov, 2015 3 commits
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yangguo authored
R=erikcorry@chromium.org, littledan@chromium.org BUG=v8:4545 LOG=N Committed: https://crrev.com/37632606bbce1418238b13fd90cb6ef6705871cd Cr-Commit-Position: refs/heads/master@{#32029} Review URL: https://codereview.chromium.org/1418963009 Cr-Commit-Position: refs/heads/master@{#32043}
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yangguo authored
Revert of Experimental support for RegExp lookbehind. (patchset #18 id:340001 of https://codereview.chromium.org/1418963009/ ) Reason for revert: gc stress breaks due to string_start_minus_one not being set correctly. Original issue's description: > Experimental support for RegExp lookbehind. > > R=erikcorry@chromium.org, littledan@chromium.org > BUG=v8:4545 > LOG=N > > Committed: https://crrev.com/37632606bbce1418238b13fd90cb6ef6705871cd > Cr-Commit-Position: refs/heads/master@{#32029} TBR=littledan@chromium.org,erikcorry@chromium.org,erikcorry@google.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=v8:4545 Review URL: https://codereview.chromium.org/1451373003 Cr-Commit-Position: refs/heads/master@{#32032}
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yangguo authored
R=erikcorry@chromium.org, littledan@chromium.org BUG=v8:4545 LOG=N Review URL: https://codereview.chromium.org/1418963009 Cr-Commit-Position: refs/heads/master@{#32029}
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- 30 Sep, 2015 1 commit
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mstarzinger authored
This enables linter checking for "readability/namespace" violations during presubmit and instead marks the few known exceptions that we allow explicitly. R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/1371083003 Cr-Commit-Position: refs/heads/master@{#31019}
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- 13 Aug, 2015 1 commit
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yangguo authored
Review URL: https://codereview.chromium.org/1285163003 Cr-Commit-Position: refs/heads/master@{#30144}
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- 12 Aug, 2015 1 commit
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mstarzinger authored
This tries to remove includes of "-inl.h" headers from normal ".h" headers, thereby reducing the chance of any cyclic dependencies and decreasing the average size of our compilation units. Note that this change still leaves 7 violations of that rule in the code. However there now is the "tools/check-inline-includes.sh" tool detecting such violations. R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/1283033003 Cr-Commit-Position: refs/heads/master@{#30125}
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- 23 Jan, 2015 1 commit
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danno authored
Along the way: - Thread isolate parameter explicitly through code that used to rely on getting it from the zone. - Canonicalize the parameter position of isolate and zone for affected code - Change Hydrogen New<> instruction templates to automatically pass isolate R=mstarzinger@chromium.org LOG=N Review URL: https://codereview.chromium.org/868883002 Cr-Commit-Position: refs/heads/master@{#26252}
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- 10 Sep, 2014 1 commit
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yangguo@chromium.org authored
R=dcarney@chromium.org, marja@chromium.org Review URL: https://codereview.chromium.org/559913002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 20 Jun, 2014 1 commit
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mstarzinger@chromium.org authored
R=rossberg@chromium.org Review URL: https://codereview.chromium.org/333013002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 03 Jun, 2014 1 commit
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jochen@chromium.org authored
- this avoids using relative include paths which are forbidden by the style guide - makes the code more readable since it's clear which header is meant - allows for starting to use checkdeps BUG=none R=jkummerow@chromium.org, danno@chromium.org LOG=n Review URL: https://codereview.chromium.org/304153016 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 29 Apr, 2014 1 commit
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bmeurer@chromium.org authored
R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/259183002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21035 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 02 Apr, 2014 1 commit
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haitao.feng@intel.com authored
R=verwaest@chromium.org Review URL: https://codereview.chromium.org/220453008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 28 Mar, 2014 1 commit
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haitao.feng@intel.com authored
R=verwaest@chromium.org Review URL: https://codereview.chromium.org/213413010 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20317 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 06 Jun, 2013 1 commit
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rodolph.perfetta@gmail.com authored
Removes never called methods and fix a bug on ARM. BUG=none TEST=none Review URL: https://chromiumcodereview.appspot.com/16280005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14967 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 24 Apr, 2013 1 commit
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yangguo@chromium.org authored
R=svenpanne@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/14429003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14400 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 11 Jun, 2012 1 commit
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sanjoy@chromium.org authored
By passing around a Zone object explicitly we no longer need to do a TLS access at the sites that allocate memory from the current Zone. BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10534006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11761 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 06 Jun, 2012 1 commit
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erik.corry@gmail.com authored
Remove CheckNotRegistersEqual regexp-masm function from all architectures. This is a commit of http://codereview.chromium.org/10066009/ for Daniel Kalmar git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 23 May, 2012 1 commit
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yangguo@chromium.org authored
R=erik.corry@gmail.com BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10417049 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11631 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 22 May, 2012 1 commit
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yangguo@chromium.org authored
BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10386090 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11623 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 30 Mar, 2012 1 commit
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erik.corry@gmail.com authored
code generation. This is performance neutral for all our tests, but a factor 6 faster for the Unicode based regexp in the new test (and much more compact code). Review URL: https://chromiumcodereview.appspot.com/9854020 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11189 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 11 Jul, 2011 1 commit
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svenpanne@chromium.org authored
architecture-independent. jsregexp.h is itself included transitively quite a lot, and by getting rid of 19 of its dependencies (which even included things like src/cpu.h, the various assemblers, etc.), the recompilation behaviour is a bit less funny than it was. Review URL: http://codereview.chromium.org/7331014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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