- 01 Mar, 2018 29 commits
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Caitlin Potter authored
Avoid generating ADDs when concatenating the empty string with other template parts. This prevents the creation of useless feedback slots, and reduces the number of extra dispatches. The impact on performance is negligible. BUG=v8:7415 Change-Id: I7ef3806b53f7252f3a86f7007ae7050ac697c1e3 Reviewed-on: https://chromium-review.googlesource.com/938145Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Adam Klein <adamk@chromium.org> Commit-Queue: Caitlin Potter <caitp@igalia.com> Cr-Commit-Position: refs/heads/master@{#51669}
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Adam Klein authored
The memory gains were significant, so despite the bluebird-doxbee regression, we think it's better to have this patch than not. See the attached Chromium bug for more discussion. This is a reland of 20e346bd. Original change's description: > [parser] Remove pretenuring of closures assigned to properties > > This pretenuring was added in https://codereview.chromium.org/5220007, > back when it was necessary in order to allow use of the closure > as a "constant function" property. This should no longer be the case, > and the pretenuring causes some unfortunate downstream effects. > > This patch removes the parser's setting of this bit. If it doesn't > cause regressions on the perf bots, followup CLs will remove the > rest of the support for this feature. > > Bug: v8:7442 > Change-Id: I27c43dd4293ce5de921be6c78571e712778d138a > Reviewed-on: https://chromium-review.googlesource.com/914610 > Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> > Commit-Queue: Adam Klein <adamk@chromium.org> > Cr-Commit-Position: refs/heads/master@{#51254} Bug: v8:7442, chromium:814182 Change-Id: I228c59dccef3844803f115749e72ae6c5f286eda Reviewed-on: https://chromium-review.googlesource.com/938241Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#51668}
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Brad Nelson authored
R=titzer@chromium.org Change-Id: Ib855271457ffd737abe7fa37ebf7a03a5bda9ee4 Reviewed-on: https://chromium-review.googlesource.com/940170Reviewed-by:
Ben Titzer <titzer@chromium.org> Commit-Queue: Brad Nelson <bradnelson@chromium.org> Cr-Commit-Position: refs/heads/master@{#51667}
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Jakob Kummerow authored
Bug: v8:6791, v8:7506 Change-Id: I8ff41cb5fab03ab2ced8f21016a0744582a3fcee Reviewed-on: https://chromium-review.googlesource.com/942387 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#51666}
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Michael Starzinger authored
This makes sure that the object can be identified by a unique instance type and hence is not accidentally confused with other FixedArrays on the heap. R=clemensh@chromium.org BUG=v8:7509 Change-Id: I66e3d779ff9a323b64f5464bdd5fe02aefe468c6 Reviewed-on: https://chromium-review.googlesource.com/943442 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#51665}
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Jakob Kummerow authored
Bug: v8:6791, v8:7486 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I733d0fb886c42928816fe570712ed23f41c8e751 Reviewed-on: https://chromium-review.googlesource.com/938945Reviewed-by:
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Igor Sheludko authored
This is a first step towards using Maps as store transition handlers. It is expected for this CL to noticeably regress memory consumption but most of it should be recovered by the next CL. Bug: v8:5988 Change-Id: Ic2e301f9ccebc36e699383ded8c8cd284a906ce1 Reviewed-on: https://chromium-review.googlesource.com/928646 Commit-Queue: Igor Sheludko <ishell@chromium.org> Reviewed-by:
Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51663}
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Gabriel Charette authored
Follow-up to https://chromium-review.googlesource.com/c/v8/v8/+/941442. "background" refers to a priority and is inappropriate to refer to worker threads as many tasks posted to worker threads by v8 are in fact high priority. Also took advantage of this rename to make NumberOfWorkerThreads() return an int instead of size_t. While it is never negative, int is simpler and Google C++ style guide states to avoid unsigned integers in such cases (ref. "On Unsigned Integers" @ https://google.github.io/styleguide/cppguide.html#Integer_Types). The Chromium embedder for that call provided an int which was converted to size_t for this override and most often casted back down to int on the v8 side, adding churn, and readability overhead. R=ahaas@chromium.org Bug: v8:7310 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: Ib5280df73d2846b111d985be65a10b049995ea6a Reviewed-on: https://chromium-review.googlesource.com/941944 Commit-Queue: Gabriel Charette <gab@chromium.org> Reviewed-by:
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Igor Sheludko authored
Bug: chromium:808845 Change-Id: I406ca472e74b8fce5f79bc389bd40aec7dcebb84 Reviewed-on: https://chromium-review.googlesource.com/943261Reviewed-by:
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Mathias Bynens authored
This patch removes the StringConstructor_ConstructStub builtin, merging its functionality into the refactored StringConstructor TurboFan builtin. This brings us closer to our goal of deprecating the `construct_stub` field in `SharedFunctionInfo`. Bug: v8:7503 Change-Id: Ie98520c652f49dda91eff2fc51263611f29e0ebe Reviewed-on: https://chromium-review.googlesource.com/942882 Commit-Queue: Mathias Bynens <mathias@chromium.org> Reviewed-by:
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v8-autoroll authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b1d6c28..df4bee0 TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org Change-Id: Ic81a2974eb31627ae07630bcfad7346cdd7f1dd6 Reviewed-on: https://chromium-review.googlesource.com/936671Reviewed-by:
v8 autoroll <v8-autoroll@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#51659}
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Junliang Yan authored
Port 66870070 Original Commit Message: Replace bitwise arithmetic with conditional move / select instructions on ia32, x64, Arm and Arm64. In local tests this improves --noopt Ignition performance by between 2-5%. R=rmcilroy@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com BUG=chromium:798964 LOG=N Change-Id: I3cb65bdf2cf48df30e97b8a12966636fa6aca5ec Reviewed-on: https://chromium-review.googlesource.com/939852 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Joran Siu <joransiu@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#51658}
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Benedikt Meurer authored
This is a purely mechanical change. Bug: v8:7250, v8:7510 Change-Id: I9f450ca86fadd96f7c941e1adf7091a8ef97e8b2 Reviewed-on: https://chromium-review.googlesource.com/943065Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#51657}
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Gabriel Charette authored
Follow-up to https://chromium-review.googlesource.com/c/v8/v8/+/941442#message-bc46157bdd4667cb44c2533bfd3201b45c32fe75 TBR=rmcilroy@chromium.org Bug: v8:7310 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: If3afbdca1393e7f3bb264abadd99f83f5a2b554a Reviewed-on: https://chromium-review.googlesource.com/942823 Commit-Queue: Gabriel Charette <gab@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Gabriel Charette <gab@chromium.org> Cr-Commit-Position: refs/heads/master@{#51656}
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Clemens Hammacher authored
This is a reland of 01db326c. Original change's description: > [Assembler][x64] Make immediates immutable > > On x64, we already pass immediates by value. This CL ensures that this > is indeed cheap, and it makes immediates immutable. > > R=mstarzinger@chromium.org > > Bug: v8:7310 > Change-Id: I53a0666d53b9de69d390621298798c03b5190497 > Reviewed-on: https://chromium-review.googlesource.com/934341 > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Commit-Queue: Clemens Hammacher <clemensh@chromium.org> > Cr-Commit-Position: refs/heads/master@{#51613} Bug: v8:7310 Change-Id: I37f1bd1528c742e8df11b7f524316935dd289f00 Reviewed-on: https://chromium-review.googlesource.com/941621Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#51655}
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Sigurd Schneider authored
This CL adds a regression benchmark for a fast-path of String.p.charCodeAt, which is important for node.js. Bug: v8:7326 Change-Id: I54efaa2988c595dd40e6a55a3464b3ee7de6f07b Reviewed-on: https://chromium-review.googlesource.com/942885Reviewed-by:
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Michael Hablich authored
TBR=machenbach@chromium.org Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I4b5675a02364631f88f203b5c60edc14314a4617 Reviewed-on: https://chromium-review.googlesource.com/942904 Commit-Queue: Michael Hablich <hablich@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Michael Hablich <hablich@chromium.org> Cr-Commit-Position: refs/heads/master@{#51653}
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Clemens Hammacher authored
R=ahaas@chromium.org Bug: v8:7508, v8:6600 Change-Id: I9eb04171eb489383bb746e2d04c6ffff304b7918 Reviewed-on: https://chromium-review.googlesource.com/942821Reviewed-by:
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Clemens Hammacher authored
MSVC 2015 and 2017 implement std::is_trivially_copyable, but not correctly. Hence, reimplement it using more low-level primitives. For stdlibc++ versions below 5.0, we already have a workaround for the missing support of std::is_trivially_copyable, but this is an unsound approximation, because it is ignoring move constructor, move assignment and copy assignment. Therefore, do not use this approximation for asserting trivial copyability of a type. Finally, add unittests for the new is_trivially_copyable implementations. R=mstarzinger@chromium.org CC=loorongjie@gmail.com Change-Id: I9ee56a65882e8c94b72c9a2d484edd27963a5d89 Reviewed-on: https://chromium-review.googlesource.com/941521Reviewed-by:
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Gabriel Charette authored
and use it for parallel GC as it blocks the main thread. On Chromium this will result in a TaskPriority::USER_BLOCKING task, allowing TaskScheduler to prioritize them above all other async work. R=ahaas@chromium.org Bug: chromium:817421 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I8c782eb045035ce2899214528deae5a45f0e6600 Reviewed-on: https://chromium-review.googlesource.com/941946 Commit-Queue: Gabriel Charette <gab@chromium.org> Reviewed-by:
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Ivica Bogosavljevic authored
Some macros in test-assembler-mips have the same name as newly introduced macros in sid sysroot. We rename them in order to prevent compilation problems Change-Id: I84d9562f39c1aca8ac20e979466862228f438425 Reviewed-on: https://chromium-review.googlesource.com/942322Reviewed-by:
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Georg Neis authored
Bug: v8:7446 Change-Id: Ic4eaeeb1e4852cffde679b359e562a48e5ba39e9 Reviewed-on: https://chromium-review.googlesource.com/942922 Commit-Queue: Georg Neis <neis@chromium.org> Reviewed-by:
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Ilija Pavlovic authored
Introducing a new status-file variable: mips_arch_variant. With this variable, in status files will be possible to define selections which are based on MIPS architecture revisions/variants. TEST= BUG= Change-Id: Ifd682552db2f26be4e56dc94ad50bed063ff14c5 Reviewed-on: https://chromium-review.googlesource.com/941212Reviewed-by:
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jgruber authored
External references are process-specific and thus need to be accessed through an indirection (or reloc'd by the linker). This CL moves all used external references to the builtins constants table and rewrites accesses to load from there. In the future, this could be made more efficient by removing levels of indirection or using the native linker. Bug: v8:6666 Change-Id: I63491670549654edeb59c60bb833acfdc5a48495 Reviewed-on: https://chromium-review.googlesource.com/939783Reviewed-by:
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Gabriel Charette authored
With a temporary intermediate step to allow adapting embedders before getting rid of the ExpectedRuntime method altogether. The method is being renamed to CallOnWorkerThread() as an effort to go away from "background" nomenclature for worker threads ("background" usually refers to a priority but worker threads are commonly used for high priority tasks in v8). Other CLs will follow to rename other "background" APIs. Bug: v8:7310 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I2fd4eac7458708d4eacb0f4871c982a567a3865e Reviewed-on: https://chromium-review.googlesource.com/941442 Commit-Queue: Gabriel Charette <gab@chromium.org> Reviewed-by: -
Kim-Anh Tran authored
Bug: v8:7310 Change-Id: I87bdb640a3c006a268974b34808f184307badeb2 Reviewed-on: https://chromium-review.googlesource.com/934243 Commit-Queue: Kim-Anh Tran <kimanh@google.com> Reviewed-by:
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Camillo Bruni authored
Bug: v8:7310 Change-Id: I328fd1b9ebff405f827f7ef810ab1e8459582fca Reviewed-on: https://chromium-review.googlesource.com/941203Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#51643}
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jing.bao authored
Also Add vhaddps to x64 Fix haddps for SSE3 scope and disassembler on ia32/x64 Change-Id: If511e6428fa1ce034b4281943dfee1405c9d4ffc Reviewed-on: https://chromium-review.googlesource.com/939265Reviewed-by:
Deepti Gandluri <gdeepti@chromium.org> Commit-Queue: Jing Bao <jing.bao@intel.com> Cr-Commit-Position: refs/heads/master@{#51642}
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Kanghua Yu authored
kind = BYTECODE_HANDLER name = Wide compiler = turbofan Body (size = 64) Instructions (size = 56) -- Prologue: generate speculation poison -- 0x3f54d38b5c0 0 488d1df9ffffff REX.W leaq rbx,[rip+0xfffffff9] 0x3f54d38b5c7 7 49c7c100000000 REX.W movq r9,0x0 => ... Body (size = 60) Instructions (size = 52) -- Prologue: generate speculation poison -- 0x3f54d38b5c0 0 488d1df9ffffff REX.W leaq rbx,[rip+0xfffffff9] 0x3f54d38b5c7 7 4533c9 xorl r9,r9 Change-Id: I2e3926a01423a979fd77cfc0c0081f049bb01eb8 Reviewed-on: https://chromium-review.googlesource.com/940778Reviewed-by:
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- 28 Feb, 2018 11 commits
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Erik Luo authored
Bug: chromium:810176 Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I16e4148434f5cbf44058e1aa5f01693bcba82d0a Reviewed-on: https://chromium-review.googlesource.com/932943 Commit-Queue: Erik Luo <luoe@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Dmitry Gozman <dgozman@chromium.org> Cr-Commit-Position: refs/heads/master@{#51640}
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Georg Neis authored
R=jkummerow@chromium.org Bug: v8:7505, v8:6791 Change-Id: I11b0031dfafa499a813e3e52080ee5542224799a Reviewed-on: https://chromium-review.googlesource.com/941130Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#51639}
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Georg Neis authored
For namespace objects, [[GetOwnProperty]] on an uninitialized property throws a ReferenceError. This was not implemented everywhere. This CL fixes all such issues I'm aware of. Bug: v8:7470 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I5f024450005c4f4dcb3f41c844ef055f67a9a869 Reviewed-on: https://chromium-review.googlesource.com/937341Reviewed-by:
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Jakob Kummerow authored
The assert-guarded comment claiming that ToNumber could not possibly neuter the target array unfortunately turns out to have been wishful thinking. Bug: chromium:816961 Change-Id: Ib98f96f4cd7f33414c0b5a6037bfb881938cc15e Reviewed-on: https://chromium-review.googlesource.com/939767 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
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Nico Weber authored
gcc and clang (and the standard) don't allow implicit conversion of function pointers to object pointers. MSVC does allow that, and since system headers require this to work, clang-cl allows it too -- but it emits a -Wmicrosoft-cast warning (which we currently suppress in the Chromium build, but which we want to enable.) As a side effect, when printing a function pointer to a stream, MSVC (and clang-cl) will pick the operator<<(void*) overload, while gcc and clang will pick operator<<(bool) since the best allowed conversion they find is from function pointer to bool. To prevent the clang-cl warning, we need to make sure that we never directly print a function pointer to a stream. In v8, this requires two changes: 1. Give PrintCheckOperand() an explicit specialization for function pointers and explicitly cast to void* there. This ports https://codereview.chromium.org/2515283002/ to V8, and also fixes a bug on non-Windows where DCHECK() of function pointers would print "(1 vs 1)" instead of the function's addresses. (The bug remains with member function pointers, where it's not clear what to print instead of the 1.) 2. has_output_operator<T> must not use operator<< on its argument in an evaluated context if T is a function pointer. This patch modifies has_output_operator<> to use an unevaluated context instead, which is simpler than the current approach (and matches what Chromium's base does), but changes behavior in minor (boring) ways (see template-utils-unittest.cc), since operator<<() is now called with a temporary and only operator<<() implementations callable with a temporary are considered. A more complicated but behavior-preserving alternative would be to add an explicit specialization for function pointers. You can see this variant in patch set 1 on gerrit. Bug: chromium:550065 Change-Id: Idc2854d6c258b7fc0b959604006d8952a79eca3d Reviewed-on: https://chromium-review.googlesource.com/940004 Commit-Queue: Nico Weber <thakis@chromium.org> Reviewed-by:
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Andreas Haas authored
Due to a recent refactoring the function EnsureEventLoopInitialized on the default platform became obsolete. It does not contain a single line of code. With this CL we prepare the removal of this function from the V8 platform API. R=rmcilroy@chromium.org Bug: v8:7310 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: If4d54cd989f8df2f40b322be3b67bb8a482398d0 Reviewed-on: https://chromium-review.googlesource.com/934221 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
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Mathias Bynens authored
This brings us closer to our goal of deprecating the `construct_stub` field in `SharedFunctionInfo`. Bug: v8:7503 Change-Id: I9502246f5e463e487a989ab7f8c96c008f0fa9d9 Reviewed-on: https://chromium-review.googlesource.com/941143 Commit-Queue: Mathias Bynens <mathias@chromium.org> Reviewed-by:
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Mathias Bynens authored
This brings us closer to our goal of deprecating the `construct_stub` field in `SharedFunctionInfo`. Bug: v8:7503 Change-Id: Id7bee0d61830f7bcf2cad4f6e50ff9f24b58a51b Reviewed-on: https://chromium-review.googlesource.com/939790Reviewed-by:
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Andreas Haas authored
R=clemensh@chromium.org Change-Id: Ib6f0c0de813049192ea99b194d5ef4b17d44cd72 Reviewed-on: https://chromium-review.googlesource.com/939784Reviewed-by:
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Sigurd Schneider authored
This CL also reorganizes the Strings test suite Bug: v8:7340 Change-Id: I54d4d76a16c362e38ebfc9719ac8cb1a490ef3cc Reviewed-on: https://chromium-review.googlesource.com/941122Reviewed-by:
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Benedikt Meurer authored
Next step on deprecating the construct_stub field in the SharedFunctionInfo. Bug: v8:7503 Change-Id: Ibcbf9dc0dbcbcf0e26c103167e8a30074cbdd888 Reviewed-on: https://chromium-review.googlesource.com/940942Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#51630}
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