- 05 Sep, 2017 15 commits
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Michael Achenbach authored
The repo url changed recently in Chromium, which breaks the V8 DEPS roller. This uses the same url like Chromium again. TBR=yangguo@chromium.org Change-Id: Iffb9daa8380d111e77ebcef1da58082e346c1e4a Reviewed-on: https://chromium-review.googlesource.com/650348Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#47821}
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Maya Lekova authored
Bug: v8:6560, chromium:761639 Change-Id: Idf546f53b20387670e42187692e702ba5e9eab73 Reviewed-on: https://chromium-review.googlesource.com/647550Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Maya Lekova <mslekova@google.com> Cr-Commit-Position: refs/heads/master@{#47820}
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Leszek Swirski authored
Now that FCG is gone, we don't need to have a code-size multiplier to distinguish Ignition and FCG code sizes. Bug: v8:6409 Change-Id: I05e5fa2483bfc17e91de22736b66ad27a5aab49b Reviewed-on: https://chromium-review.googlesource.com/649149 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#47819}
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jgruber authored
This adds support for lazy deserialization of JS-linkage (TFJ) builtins, still gated behind the --lazy-deserialization flag. If enabled, we proceed as follows: During isolate initialization, only eager builtins are deserialized. All references to lazy builtins are replaced by the DeserializeLazy builtin. In particular, this happens in the builtin table (Builtins::builtins_) and in SharedFunctionInfo objects. When calling into a not-yet deserialized function (i.e. the JSFunction's code object is the DeserializeLazy builtin), the DeserializeLazy builtin takes over. It checks the builtin table to see if the target builtin (determined by looking at the builtin id stored on the SharedFunctionInfo) has already been deserialized. If so, it simply copies the builtin code object to the JSFunction and SharedFunctionInfo. Otherwise, we enter Runtime::kDeserializeLazy to deserialize the builtin. With --lazy-deserialization, isolate deserialization is 11% faster (1.5ms vs. 1.7ms), and code_space->Size() is 33% lower (984K vs. 1475K). Moving relocation infos & handler tables out of the partial snapshot cache would additionally let us save up to 30K per isolate. Adding code stubs to that list increases further potential savings to 262K. Bug: v8:6624 Change-Id: I0ac7d05d165d2466998269bd431ac076a311cbeb Reviewed-on: https://chromium-review.googlesource.com/649166 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#47818}
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Andreas Haas authored
R=titzer@chromium.org Change-Id: I0be772d52b561e8664e128a9fb2c291256b2e9c2 Reviewed-on: https://chromium-review.googlesource.com/650287Reviewed-by:
Ben Titzer <titzer@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#47817}
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Mythri authored
This cl: https://chromium-review.googlesource.com/c/538614/ changes the number of ticks required for tiering up based on the size of function. An earlier cl: https://chromium-review.googlesource.com/c/529165/ also resets ticks when type feedback changes. So, it is reasonable to assume that a function which has necessary number of ticks has the required type feedback for optimizing. Hence, removing the check for type feedback from the tierinup decision. Bug: Change-Id: Ia350ad4dfba5f93f1a17bdc0c309bf6b41b0c1c9 Reviewed-on: https://chromium-review.googlesource.com/647851Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#47816}
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Ben L. Titzer authored
R=petermarshall@chromium.org Bug: Change-Id: Id7187d9e323951e66655d1c6df4676a8e94787dd Reviewed-on: https://chromium-review.googlesource.com/649247Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Commit-Queue: Ben Titzer <titzer@chromium.org> Cr-Commit-Position: refs/heads/master@{#47815}
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Yang Guo authored
R=jgruber@chromium.org Bug: v8:6422 Change-Id: Ib1075259325627451060b3a0a41cad5c917dc30e Reviewed-on: https://chromium-review.googlesource.com/650246Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#47814}
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Daniel Bevenius authored
I could not find any usage of this struct and it is in the internal namespace so I though it might be safe to remove it. Bug: Change-Id: I85d605712ab1ab3218eb03ed4d3b5fc0e541e21a Reviewed-on: https://chromium-review.googlesource.com/641270Reviewed-by:
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Jaroslav Sevcik authored
[turbofan] Reland^2 "Polymorphic inlining - try merge map check dispatch with function call dispatch." This reverts commit e26e6d88. Bug: chromium:758096 Change-Id: I1d8ecda995c93c84a9a3c24da041fdb730dbd3b2 Reviewed-on: https://chromium-review.googlesource.com/628169Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#47812}
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Yang Guo authored
This is a reland of c0e4e79b Original change's description: > [d8] implement setTimeout. > > R=ahaas@chromium.org, jarin@chromium.org > > Bug: v8:6770 > Change-Id: Iebf4dc9f2dd75079c5362e02d859c48e2113cf20 > Reviewed-on: https://chromium-review.googlesource.com/643067 > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Commit-Queue: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47780} Bug: v8:6770 Change-Id: I765b64cc597aa48871c6b2dca95dec9de94a8511 Reviewed-on: https://chromium-review.googlesource.com/647754Reviewed-by:
Jaroslav Sevcik <jarin@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#47811}
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Marja Hölttä authored
For such a simple predicate, calling a(n inline) function that checks against the values is faster (*) than maintaining the cache. (*) When scanning a file that contains only comments, we're basically calling IsLineTerminator in a loop. Parsing such files is now 7-18% faster in local experiments. BUG=v8:6092 Change-Id: I6a8f2aba9669a76152292f4e6c7853638d15aae3 Reviewed-on: https://chromium-review.googlesource.com/645633 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by:
Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#47810}
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Jaroslav Sevcik authored
Bug: v8:5267 Change-Id: If2a36a53016f683b9eddb6cba76e3328cd69f98b Reviewed-on: https://chromium-review.googlesource.com/649847Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#47809}
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Juliana Franco authored
This CL removes the weak-list of JS functions from the context and all the code that iterares over it. This list was being used mainly during deoptimization (for code unlinking) and during garbage collection. Removing it will improve performance of programs that create many closures and trigger many scavenge GC cycles. No extra work is required during garbage collection. However, given that we no longer unlink code from JS functions during deoptimization, we leave it as it is, and on its next activation we check whether the mark_for_deoptimization bit of that code is set, and if it is, than we unlink it and jump to lazy compiled code. This check happens in the prologue of every code object. We needed to change/remove the cctests that used to check something on this list. Working in x64, ia32, arm64, arm, mips64 and mips. Bug: v8:6637 Change-Id: Ica99a12fd0351ae985e9a287918bf28caf6d2e24 TBR: mstarzinger@chromium.org Reviewed-on: https://chromium-review.googlesource.com/647596 Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> Reviewed-by:
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Juliana Franco authored
Removed one function that was needed for code patching during deoptimization, and one function needed for full code gen. Bug: v8:6563 Change-Id: Iea0c8a3d374cf315ac4903f4e84a7a2f11563b70 Reviewed-on: https://chromium-review.googlesource.com/649747 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
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- 04 Sep, 2017 25 commits
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Enrico Bacis authored
The perf tests results are used by tools/perf-to-html.py to generate html pages. Since the results are used as divisors to compute percentages, when the one of them happens to be zero, the script crashes. This CL prevent the crash and uses the text "NaN" instead of the percentage. R=machenbach@chromium.org CC=ahaas@chromium.org,clemensh@chromium.org Bug: chromium:761816 Change-Id: I482a85150c8323a7a837e6d589feee88279831cd Reviewed-on: https://chromium-review.googlesource.com/649626 Commit-Queue: Enrico Bacis <enricobacis@google.com> Reviewed-by:
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Leszek Swirski authored
Since ignition bakes the interrupt budget into the snapshot (the bytecode handlers reset the current function's interrupt budget to a constant value), we should remove the interrupt budget flag, which won't actually change anything if used. Change-Id: I9672b73fea7abb6c9b575d3963f107e2397f8e49 Reviewed-on: https://chromium-review.googlesource.com/649148Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#47805}
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Camillo Bruni authored
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I7d34ccddeea08f5935e360e8c36791365f27f89e Reviewed-on: https://chromium-review.googlesource.com/647706Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#47804}
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Marja Hölttä authored
... mainly to get more canary coverage. BUG=v8:5516 Change-Id: I323e7ee867ff2340d28e55ff249298d8a91fbde1 Reviewed-on: https://chromium-review.googlesource.com/649207Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#47803}
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Clemens Hammacher authored
R=mstarzinger@chromium.org Bug: chromium:746958 Change-Id: Id0afb27e88944a64bf301533fa164668294f8446 Reviewed-on: https://chromium-review.googlesource.com/648978 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by:
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Marja Hölttä authored
Evalling multiple long strings makes compilation cache the bottleneck: See https://bugs.chromium.org/p/v8/issues/detail?id=6779 for more information. BUG=v8:6779 Change-Id: I0014b1aca1258a643cbeb441a82707b163f8166d Reviewed-on: https://chromium-review.googlesource.com/649146Reviewed-by:
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Michael Starzinger authored
This adds support for the backing store of mapped arguments objects to escape analysis. It also unifies two simplified operators representing allocations of these backing stores into a single {NewArgumentsElements} operator and threads through the "mapped count" to the deoptimizer. R=tebbi@chromium.org Change-Id: I1864e29a5703348597b7b2e41deaf5fab73e2c93 Reviewed-on: https://chromium-review.googlesource.com/643208 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: -
Ben L. Titzer authored
R=mstarzinger@chromium.org Bug: v8:6756 Change-Id: Ic748a4848f66dfcd9b8577d615669b61670e5431 Reviewed-on: https://chromium-review.googlesource.com/647757Reviewed-by:
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Franziska Hinkelmann authored
When setting a typed array from an array like object, the length of the source can only be converted to a unit32 if it is not too large. Bug: v8:6704, chromium:761654 Change-Id: I8f89aa348093d8bd4d54aa16d6b5f255d3cb7adc Reviewed-on: https://chromium-review.googlesource.com/648976 Commit-Queue: Franziska Hinkelmann <franzih@chromium.org> Reviewed-by:
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Albert Mingkun Yang authored
In kArchSaveCallerRegisters, PushCallerSaved alone alters stack pointer without informing `frame_access_state`. This commit compensate the inconsistency by manually increasing the delta after pushing registers. This affects systems (currently only ARM64) using stack pointer for accessing variables stored on stack. Bug: chromium:749486 Change-Id: Ic6da3826323d4fb1c545ade3d4d2cd4d1fed1843 Reviewed-on: https://chromium-review.googlesource.com/633606 Commit-Queue: Albert Mingkun Yang <albertnetymk@google.com> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#47797}
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Clemens Hammacher authored
This is a reland of 6daf3c77 Original change's description: > [presubmit] Include test/common and test/fuzzer in cpplint > > These directories probably just did not exist when the cpplint paths > were defined. > > R=machenbach@chromium.org > CC=mstarzinger@chromium.org > > Change-Id: Ia6b641b3c106d86ceafb0c70b44ca241b4c80642 > Reviewed-on: https://chromium-review.googlesource.com/647807 > Reviewed-by: Michael Achenbach <machenbach@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Commit-Queue: Clemens Hammacher <clemensh@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47786} Change-Id: I15cd1b508cd3c6f5cd58cd5c5129174d8ced40d0 Reviewed-on: https://chromium-review.googlesource.com/649006Reviewed-by:
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Jaroslav Sevcik authored
We encode the reachability/liveness in the placement. After we prepare use counts, the kUnknown placement means that the noe is unreachable. Bug: v8:5267 Change-Id: Iad27159508f0aefb812b6394a257055f789fbe13 Reviewed-on: https://chromium-review.googlesource.com/646247 Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> Reviewed-by:
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Clemens Hammacher authored
Rename Managed::New to Managed::From (since it takes ownership of an existing object), and re-introduce Managed::Allocate, which allocates a new object and stores it in a Managed. R=titzer@chromium.org Change-Id: I20b0750697fbe7d56d3816b19919c31e389278b3 Reviewed-on: https://chromium-review.googlesource.com/645806Reviewed-by:
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Michael Starzinger authored
R=clemensh@chromium.org Change-Id: I42241713b7d14dd1cb321df0570566b0873c10a4 Reviewed-on: https://chromium-review.googlesource.com/647888Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#47793}
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Michael Achenbach authored
This reverts commit 84c2dfce. Reason for revert: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/14876 Original change's description: > Remove weak-list of optimized JS functions. > > This CL removes the weak-list of JS functions from the context > and all the code that iterares over it. This list was being used > mainly during deoptimization (for code unlinking) and during > garbage collection. Removing it will improve performance of > programs that create many closures and trigger many scavenge GC > cycles. > > No extra work is required during garbage collection. However, > given that we no longer unlink code from JS functions during > deoptimization, we leave it as it is, and on its next activation > we check whether the mark_for_deoptimization bit of that code is > set, and if it is, than we unlink it and jump to lazy compiled > code. This check happens in the prologue of every code object. > > We needed to change/remove the cctests that used to check > something on this list. > > Working in x64, ia32, arm64, arm, mips64 and mips. > > Bug: v8:6637 > Change-Id: I7f192652c8034b16a9ea71303fa8e78cda3c48f3 > Reviewed-on: https://chromium-review.googlesource.com/600427 > Commit-Queue: Juliana Patricia Vicente Franco <jupvfranco@google.com> > Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47790} TBR=mstarzinger@chromium.org,jarin@chromium.org,leszeks@chromium.org,bmeurer@chromium.org,jupvfranco@google.com Change-Id: Ia4f1a8acf6ca5cd5c74266437a03d854b3739af2 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:6637 Reviewed-on: https://chromium-review.googlesource.com/647540Reviewed-by:
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Clemens Hammacher authored
After this CL, we will enable cpplint checks for this directory on presubmit: https://chromium-review.googlesource.com/647807 R=mstarzinger@chromium.org Change-Id: Ie85e876a7245cc5c8d5bf9348c8841040a8edbe9 Reviewed-on: https://chromium-review.googlesource.com/647552Reviewed-by:
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Juliana Franco authored
This CL removes the weak-list of JS functions from the context and all the code that iterares over it. This list was being used mainly during deoptimization (for code unlinking) and during garbage collection. Removing it will improve performance of programs that create many closures and trigger many scavenge GC cycles. No extra work is required during garbage collection. However, given that we no longer unlink code from JS functions during deoptimization, we leave it as it is, and on its next activation we check whether the mark_for_deoptimization bit of that code is set, and if it is, than we unlink it and jump to lazy compiled code. This check happens in the prologue of every code object. We needed to change/remove the cctests that used to check something on this list. Working in x64, ia32, arm64, arm, mips64 and mips. Bug: v8:6637 Change-Id: I7f192652c8034b16a9ea71303fa8e78cda3c48f3 Reviewed-on: https://chromium-review.googlesource.com/600427 Commit-Queue: Juliana Patricia Vicente Franco <jupvfranco@google.com> Reviewed-by:
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jgruber authored
Our current deserializers (startup & partial) use a system of static memory reservations: required memory is determined at serialization time, which we then request before deserialization and dole out as-needed during deserialization. Lazy builtin deserialization needs a bit more flexibility. On the one hand, the amount of required memory varies since --lazy-deserialization can be switched on and off at runtime. On the other, builtin deserialization has been made order-independent, and we can encounter references to builtins before they have been deserialized. Both problems are solved by dynamically allocating required memory and initializing the builtins table with the (yet uninitialized) builtin Code objects. Bug: v8:6624 Change-Id: Iee90992e91adb4ab45dae1acc81f64a108d12584 Reviewed-on: https://chromium-review.googlesource.com/647748 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
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Marja Hölttä authored
These will tight-loop scanning primitives. BUG=v8:6092 Change-Id: I9bf0f1952755bbede3c545c45fe2c4a210548171 Reviewed-on: https://chromium-review.googlesource.com/647526Reviewed-by:
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Clemens Hammacher authored
This reverts commit 6daf3c77. Reason for revert: Need to fix violations in test/fuzzer first. Original change's description: > [presubmit] Include test/common and test/fuzzer in cpplint > > These directories probably just did not exist when the cpplint paths > were defined. > > R=machenbach@chromium.org > CC=mstarzinger@chromium.org > > Change-Id: Ia6b641b3c106d86ceafb0c70b44ca241b4c80642 > Reviewed-on: https://chromium-review.googlesource.com/647807 > Reviewed-by: Michael Achenbach <machenbach@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Commit-Queue: Clemens Hammacher <clemensh@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47786} TBR=machenbach@chromium.org,mstarzinger@chromium.org,clemensh@chromium.org Change-Id: Ie20f0e9ef521c8da0c928bee241427fad694a440 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/647593Reviewed-by:
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Clemens Hammacher authored
These directories probably just did not exist when the cpplint paths were defined. R=machenbach@chromium.org CC=mstarzinger@chromium.org Change-Id: Ia6b641b3c106d86ceafb0c70b44ca241b4c80642 Reviewed-on: https://chromium-review.googlesource.com/647807Reviewed-by:
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Clemens Hammacher authored
For readability. Also make them constexpr, which allows to use them in other constexpr contexts. R=mstarzinger@chromium.org Change-Id: Ia9ea9b4fb044bd1a011da887409bfbcbf6298fec Reviewed-on: https://chromium-review.googlesource.com/647627Reviewed-by:
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Clemens Hammacher authored
This allows to reuse this logic in the wasm baseline compiler to determine the location of our parameters. R=mstarzinger@chromium.org CC=titzer@chromium.org Bug: v8:6600 Change-Id: I86e4d425d1c8aa35f0f722d311a2bd830b951d0a Reviewed-on: https://chromium-review.googlesource.com/647628Reviewed-by:
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Jakob Gruber authored
DeserializeLazy must be deserialized eagerly since it implements the lazy deserialization mechanism. Wasm currently requires their builtins to be immovable; and since we can only efficiently allocate immovable code objects at deserialization time, wasm builtins must be eager-loaded for now. Bug: v8:6624 Change-Id: I9aae60385d4b08a34a52e12711ee1a492476f7cf Reviewed-on: https://chromium-review.googlesource.com/647707Reviewed-by:
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Mostyn Bramley-Moore authored
Bug: chromium:746958 Change-Id: I5df144055d1918bf26acba648e07646150249d94 Reviewed-on: https://chromium-review.googlesource.com/647549Reviewed-by:
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