- 06 Sep, 2017 14 commits
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peterwmwong authored
- Convert S.p.{trim, trimLeft, trimRight} to TFJ - Fast paths for one/two byte strings - Added StringTrimAssembler - Added helper kStringTrim runtime to handle slow paths Quick measurements show >2.7x improvement: https://github.com/peterwmwong/v8-perf/tree/master/string-trim Bug: v8:6680 Change-Id: I79929129aa3d5dea20f094d648afe46adbf61a49 Reviewed-on: https://chromium-review.googlesource.com/647647Reviewed-by:Jakob Gruber <jgruber@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#47853}
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Michael Starzinger authored
R=clemensh@chromium.org TEST=mjsunit/regress/regress-crbug-762472 BUG=chromium:762472 Change-Id: I8977fb9c9330f03641291b08cf803d0117b7a96a Reviewed-on: https://chromium-review.googlesource.com/652478Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#47852}
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Benedikt Meurer authored
Bug: v8:6702 Change-Id: I6e2fc1a56035b9841ad5c71504b74a89d7259ad1 Reviewed-on: https://chromium-review.googlesource.com/651366Reviewed-by:
Jaroslav Sevcik <jarin@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#47851}
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Mike Stanton authored
JSTests.json had some poor/wrong settings. Bug: Change-Id: Id30589ba2392d2561037fd55d9e77a31ca6c7ad9 Reviewed-on: https://chromium-review.googlesource.com/649534Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Stanton <mvstanton@chromium.org> Cr-Commit-Position: refs/heads/master@{#47850}
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Caitlin Potter authored
The stack value is unused and does not need to be pushed or popped on return from JSEntryTrampoline Bug: Change-Id: I0e1920fc48b63cb0eea66454e5b74d9b3c2d5956 Reviewed-on: https://chromium-review.googlesource.com/650810 Commit-Queue: Caitlin Potter <caitp@igalia.com> Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#47849}
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Yang Guo authored
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng Change-Id: I1a9561adc44ee1d8a6b68c36604992261c490043 Reviewed-on: https://chromium-review.googlesource.com/651414Reviewed-by:
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Clemens Hammacher authored
Up to now, each architecture defined all Register types as structs, with lots of redundancy. An often found comment noted that they cannot be classes due to initialization order problems. As these problems are gone with C++11 constexpr constants, I now tried making Registers classes again. All register types now inherit from RegisterBase, which provides a default set of methods and named constructors (like ::from_code, code(), bit(), is_valid(), ...). This design allows to guarantee an interesting property: Each register is either valid, or it's the no_reg register. There are no other invalid registers. This is guaranteed statically by the constexpr constructor, and dynamically by ::from_code. I decided to disallow the default constructor completely, so instead of "Register reg;" you now need "Register reg = no_reg;". This makes explicit how the Register is initialized. I did this change to the x64, ia32, arm, arm64, mips and mips64 ports. Overall, code got much more compact and more safe. In theory, it should also increase performance (since the is_valid() check is simpler), but this is probably not measurable. R=mstarzinger@chromium.org Change-Id: I5ccfa4050daf4e146a557970e9d37fd3d2788d4a Reviewed-on: https://chromium-review.googlesource.com/650927Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#47847}
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sreten.kovacevic authored
MIPS[64]: Port: `[Atomics] Make Atomics.exchange a builtin using TF` and `[Atomics] Make Atomics.compareExchange a builtin using TF` Port 301c1237 and 82b5c8c9 Implemented exchange and compareExchange atomics. Bug: Change-Id: I11a0d3d608ecf809c7947dd560884c6451dcdb3c Reviewed-on: https://chromium-review.googlesource.com/649186Reviewed-by:
Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com> Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com> Cr-Commit-Position: refs/heads/master@{#47846}
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Jaroslav Sevcik authored
Revert "[turbofan] Reland^2 "Polymorphic inlining - try merge map check dispatch with function call dispatch."" This reverts commit 8cf4aafc. Reason for revert: Likely crashes Canary. https://crash.corp.google.com/browse?q=product.name%3D%27Chrome_Mac%27%20AND%20product.version%3D%2763.0.3207.0%27%20AND%20custom_data.ChromeCrashProto.channel%3D%27canary%27%20AND%20custom_data.ChromeCrashProto.ptype%3D%27renderer%27%20AND%20custom_data.ChromeCrashProto.magic_signature_1.name%3D%27v8%3A%3Ainternal%3A%3Acompiler%3A%3AGraphTrimmer%3A%3ATrimGraph%27&sql_dialect=dremelsql&ignore_case=false&enable_rewrite=true&omit_field_name=&omit_field_value=&omit_field_opt=%3D&unnest= Original change's description: > [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/628169 > Reviewed-by: Tobias Tebbi <tebbi@chromium.org> > Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47812} TBR=jarin@chromium.org,tebbi@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: chromium:758096 Change-Id: I96b62d08efa25ac1ead30e08401919d42a20ca1b Reviewed-on: https://chromium-review.googlesource.com/652370Reviewed-by:
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jing.bao authored
Do conditional jump based on the second instruction rather than generate similar assembly code twice. Bug: Change-Id: I8c10f3415f213f88d8222a92671e7104c65befdc Reviewed-on: https://chromium-review.googlesource.com/634631 Commit-Queue: Jing Bao <jing.bao@intel.com> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#47844}
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Franziska Hinkelmann authored
args.Call() sets a return value on args. Do not reuse the same args object, otherwise the return value might be from the previous Call(). Bug: v8:6627 Change-Id: I05fb2d8036f94908a492d46cc5d746bc145e419e Reviewed-on: https://chromium-review.googlesource.com/651407Reviewed-by:
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Michael Starzinger authored
R=jarin@chromium.org BUG=v8:6409 Change-Id: Ia0a04ad920b7b5c87e175ba0bcd604ef1e855f0c Reviewed-on: https://chromium-review.googlesource.com/649727Reviewed-by:
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Mircea Trofin authored
We weren't deleting them correctly - the intention was to delete them when an instance is finalized; the code was deleting them only for the last instance in a chain of instances. Bug: Change-Id: I177a64ac9f10a4993927d9654c032cb3f22eca51 Reviewed-on: https://chromium-review.googlesource.com/651238Reviewed-by:
Brad Nelson <bradnelson@chromium.org> Commit-Queue: Mircea Trofin <mtrofin@chromium.org> Cr-Commit-Position: refs/heads/master@{#47841}
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Anisha Rohra authored
Port f0acede9 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. R=bjaideep@ca.ibm.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: I8007a837d43b6a339789cfd727e81ad7f4ac3ae1 Reviewed-on: https://chromium-review.googlesource.com/651891Reviewed-by:
Jaideep Bajwa <bjaideep@ca.ibm.com> Commit-Queue: Jaideep Bajwa <bjaideep@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#47840}
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- 05 Sep, 2017 26 commits
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Jakob Kummerow authored
Bug: v8:1569 Change-Id: I84317ce1ac145b69caa26452721f71aac88f219e Reviewed-on: https://chromium-review.googlesource.com/636699 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#47839}
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Franziska Hinkelmann authored
This is a reland of 56772de7 Original change's description: > [api] Add test for EnumeratorCallback and for...in. > > If a QueryCallback is present, it is used to > filter the result from the EnumeratorCallback for > enumerable properties. This tests assures that > for...in loops work correctly with these interceptors. > > Bug: v8:6627 > Change-Id: I1e568beac1e138a330034492b87bd49c22e0c804 > Reviewed-on: https://chromium-review.googlesource.com/609982 > Commit-Queue: Franziska Hinkelmann <franzih@chromium.org> > Reviewed-by: Adam Klein <adamk@chromium.org> > Cr-Commit-Position: refs/heads/master@{#47445} TBR=adamk@chromium.org Bug: v8:6627 Change-Id: I509016a879d175b01f7cc7918758354fe0df8ebf Reviewed-on: https://chromium-review.googlesource.com/650906Reviewed-by:
Franziska Hinkelmann <franzih@chromium.org> Commit-Queue: Franziska Hinkelmann <franzih@chromium.org> Cr-Commit-Position: refs/heads/master@{#47838}
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Deepti Gandluri authored
BUG=v8:6749 R=titzer@chromium.org Change-Id: I4ac2ac8d8ca98d71dbc5a86c3cca268cd836997c Reviewed-on: https://chromium-review.googlesource.com/645146 Commit-Queue: Deepti Gandluri <gdeepti@chromium.org> Reviewed-by:
Ben Titzer <titzer@chromium.org> Cr-Commit-Position: refs/heads/master@{#47837}
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Jakob Kummerow authored
Only the error cases of overwriting readonly properties need the language_mode to decide whether to throw or be silent. Reading it from the feedback vector's metadata (just like the C++ code in ic.cc does) removes the need to duplicate each stub for each language_mode ("StoreIC" + "StoreICStrict" etc.). Change-Id: Ic0c67f9d40ca36c65e41b4f162b2ab70d155e549 Reviewed-on: https://chromium-review.googlesource.com/647373Reviewed-by:Leszek Swirski <leszeks@chromium.org> Reviewed-by:
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Jakob Kummerow authored
AFAICT this doesn't currently change observable behavior, but should be fixed nonetheless. Change-Id: I1dce90ae5bcad39d7d54dddd2559bd7f7ccbb095 Reviewed-on: https://chromium-review.googlesource.com/648354Reviewed-by:
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Clemens Hammacher authored
The current usage pattern is always to allocate a {ModuleCompiler}, then call {CompileToModuleObject}, then deallocate the {ModuleCompiler}. Hence, the method can be made static and allocate the {ModuleCompiler} internally. This also gives back a reason for the existence of {CompileToModuleObjectInternal}. R=ahaas@chromium.org Change-Id: Iac1ba28421ade6728046c0b9a6e9fc249a349491 Reviewed-on: https://chromium-review.googlesource.com/650386Reviewed-by:Andreas Haas <ahaas@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#47834}
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Adam Klein authored
Also further tighten-up that calling DCHECK in BytecodeGraphBuilder, and narrow the other caller to IsValidReferenceExpression. Bug: v8:6092 Change-Id: I432a3d6f5991f2d1adf4f4f86e80d6ed8be5a0e8 Reviewed-on: https://chromium-review.googlesource.com/648196Reviewed-by:
Mythri Alle <mythria@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#47833}
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Jaideep Bajwa authored
Fix register corruption and save constant pool register. R=joransiu@ca.ibm.com, jyan@ca.ibm.com BUG= LOG=N Change-Id: I278b7f9a60e10c5347cdfba52432837f68c82836 Reviewed-on: https://chromium-review.googlesource.com/649812 Commit-Queue: Junliang Yan <jyan@ca.ibm.com> Reviewed-by:
Junliang Yan <jyan@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#47832}
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Franziska Hinkelmann authored
The V8 API provides interceptors. They are not part of the EcmaScript specification. But their behavior should be consistent. For example, when an EnumeratorInterceptor is defined, Object.keys(), Object.entries(), and Object.values() should all have the same number of entries. This CL creates consistent behavior among these functions. If a QueryCallback is present, it is used to filter the result from the EnumeratorCallback for enumerable properties. Bug: v8:6627 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I4f4271ddeb99a5e85918148c5033923c149b9468 Reviewed-on: https://chromium-review.googlesource.com/649786Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Franziska Hinkelmann <franzih@chromium.org> Cr-Commit-Position: refs/heads/master@{#47831}
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Adam Klein authored
Change-Id: I891ff57b7a3a47e3371269b123705cdf6391499b Reviewed-on: https://chromium-review.googlesource.com/648513Reviewed-by:
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Jakob Kummerow authored
And add the helpfully suggested flag to the GDB re-run of mksnapshot. NOTRY=true Change-Id: I52011aa580c8d3e557f869b8306b9b978c73b946 Reviewed-on: https://chromium-review.googlesource.com/647693Reviewed-by:
Adam Klein <adamk@chromium.org> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#47829}
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Leszek Swirski authored
Add a flag which traces which interrupts are being handled by the StackGuard's HandleInterrupts function. Change-Id: I18fcf58b03cf6c255d7457d8a55b0a0dadb00931 Reviewed-on: https://chromium-review.googlesource.com/649530 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#47828}
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Mircea Trofin authored
The renames capture what the item being unwrapped is - it's always a js-to-wasm wrapper, which is more closely captured by "export" rather than "import". Bug: Change-Id: Iffc3d8cb9037afc2d32885301fd13fc12b8277ce Reviewed-on: https://chromium-review.googlesource.com/648005Reviewed-by:
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Ross McIlroy authored
Always return to the InterpreterEntryTrampoline rather than calling the InterpreterExitTrampoline from the Return bytecode handler. This fixes a regression which occured if we upset the call/return stack by skipping the return to the InterpreterEntryTrampoline from the return bytecode handler. BUG=chromium:759390,chromium:753705 Change-Id: Ib625654a4a5072ac6c8d8e9611d1b9c0bbced4ca Reviewed-on: https://chromium-review.googlesource.com/649517 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
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Mostyn Bramley-Moore authored
Bug: chromium:746958 Change-Id: I4e23608995952efd0f0bd73d9bf4f9a3fc84d478 Reviewed-on: https://chromium-review.googlesource.com/650256Reviewed-by:
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Jaroslav Sevcik authored
Checked number is not automatically truncating to float64. Bug: chromium:761892 Change-Id: I34bd5d7867cd38b2be18cd39a810605603f515e2 Reviewed-on: https://chromium-review.googlesource.com/649513 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
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jgruber authored
Using the Builtins::Name type doesn't give use any range safety benefits over simply using int id's, and it complicates use sites by always forcing a static_cast<Builtins::Name>(id). Bug: v8:6624 Change-Id: Id5fcf6800c781c637145ab1d00d821f9ad473321 Reviewed-on: https://chromium-review.googlesource.com/650247 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#47823}
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Jaroslav Sevcik authored
Bug: Change-Id: Iedd273d517e2ee2e548a5e9732689114800e6128 Reviewed-on: https://chromium-review.googlesource.com/649749Reviewed-by:
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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:
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Maya Lekova authored
Bug: v8:6560, chromium:761639 Change-Id: Idf546f53b20387670e42187692e702ba5e9eab73 Reviewed-on: https://chromium-review.googlesource.com/647550Reviewed-by:
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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:
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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:
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Andreas Haas authored
R=titzer@chromium.org Change-Id: I0be772d52b561e8664e128a9fb2c291256b2e9c2 Reviewed-on: https://chromium-review.googlesource.com/650287Reviewed-by:
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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:
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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:
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