- 29 Aug, 2018 9 commits
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Maya Lekova authored
The new node is introduced for literal string addition and calling String.prototype.concat in the typed lowering phase. It later might get optimized away during redundancy elimination, keeping the performance of already existing benchmarks with string addition. In case the operation is about to throw (due to too long string being constructed) we just deoptimize, reusing the interpreter logic for creating the error. Modify relevant mjsunit and unit tests for string concatenation. Bug: v8:7902 Change-Id: Ie97d39534df4480fa8d4fe3ba276d02ed5e750e3 Reviewed-on: https://chromium-review.googlesource.com/1193342 Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by:
Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#55482}
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Frank Tang authored
Bug: v8:8066 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I5511b6b9272804ebbb61bf2127a2ad51bfc70e28 Reviewed-on: https://chromium-review.googlesource.com/1179319Reviewed-by:
Georg Neis <neis@chromium.org> Reviewed-by:
Adam Klein <adamk@chromium.org> Commit-Queue: Frank Tang <ftang@chromium.org> Cr-Commit-Position: refs/heads/master@{#55481}
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Rodrigo Bruno authored
Bug: v8:8108 Change-Id: Iaa388e53f99c827c4bcf5177f1a9e26097f07f11 Reviewed-on: https://chromium-review.googlesource.com/1195362Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Rodrigo Bruno <rfbpb@google.com> Cr-Commit-Position: refs/heads/master@{#55480}
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Ben L. Titzer authored
This CL makes the names of tracing flags related to WASM consistent with the rest of V8 tracing flags. R=ahaas@chromium.org Change-Id: I871fb7b5e27ff7b8f587e08507d15c0719881990 Reviewed-on: https://chromium-review.googlesource.com/1193182 Commit-Queue: Ben Titzer <titzer@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#55479}
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Toon Verwaest authored
Using a circular buffer regresses performance unfortunately. Change-Id: Id5b68cae798d21f46376141f86d5707794bf08d6 Reviewed-on: https://chromium-review.googlesource.com/1194064Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#55478}
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Sigurd Schneider authored
This CL removed the 2nd scratch register from StackOverflowCheck on ia32 and lower register pressure at use sites. This will make it easier to preserve the kRootRegister (ebx) in future CLs. Bug: v8:6666 Change-Id: I225ffdf155a4547fcec02a033638da094995f181 Reviewed-on: https://chromium-review.googlesource.com/1194122 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#55477}
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Jaroslav Sevcik authored
Bug: v8:7790 Change-Id: I1e49ae883456d0a13bd19042d2649fb603612d04 Reviewed-on: https://chromium-review.googlesource.com/1189622 Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> Reviewed-by:
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Jaroslav Sevcik authored
Adds recursive serialization of boilerplate JSObjects. It also hooks up serialization of FixedArrays (shallow copy of all elements). Bug: v8:7790 Change-Id: I458133961918617ab7bdae8d14712a4e5a7d9cb5 Reviewed-on: https://chromium-review.googlesource.com/1188903Reviewed-by:
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Ulan Degenbaev authored
Bug: chromium:875041 Change-Id: I4008fa2f7d92a0f2005c7566eb2945a800a9d284 Reviewed-on: https://chromium-review.googlesource.com/1190862 Commit-Queue: Alexei Filippov <alph@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Cr-Commit-Position: refs/heads/master@{#55474}
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- 28 Aug, 2018 31 commits
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Wez authored
The VMAR syscall signatures are being updated, so migrate to the temporarily-provided *_old() variants, in advance of the Fuchsia SDK roll that updates the real APIs. TBR: hpayer Change-Id: I10da4df97b122262de04a2417bd91b921f3a63d5 Reviewed-on: https://chromium-review.googlesource.com/1194429 Commit-Queue: Wez <wez@chromium.org> Reviewed-by:
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Sathya Gunasekaran authored
Bug: v8:7834 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: Ieab3529ce40a2c01c18f7fade10ec8b437173aa9 Reviewed-on: https://chromium-review.googlesource.com/1194424 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
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Ujjwal Sharma authored
This increases the size of a V8BreakIterator instance by a word to store the current function. The instance to be bound is stored on the context of this builtin function. Bug: v8:5751 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I1bdf3d3cd9db5ab16abb644b33b44705ca58684e Reviewed-on: https://chromium-review.googlesource.com/1194802 Commit-Queue: Ujjwal Sharma <usharma1998@gmail.com> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#55471}
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Hannes Payer authored
This reverts commit d6de4af5. Bug: chromium:852420 Change-Id: Ife02a0e47ddb4a136c552965d9e01c6a0ef18e02 Reviewed-on: https://chromium-review.googlesource.com/1194363Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Hannes Payer <hpayer@chromium.org> Cr-Commit-Position: refs/heads/master@{#55470}
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Junliang Yan authored
Change-Id: I2df302a4bed3775dfdf15cc3d1797c50229cc997 Reviewed-on: https://chromium-review.googlesource.com/1194582Reviewed-by:
Joran Siu <joransiu@ca.ibm.com> Commit-Queue: Junliang Yan <jyan@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#55469}
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Michael Achenbach authored
This reverts commit 0d66b4d8. Reason for revert: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux64%20TSAN/22200 Original change's description: > [heap] Reland: Reuse object evacuation information for slot recording in Scavenger. > > This reverts commit 136ecbb9. > > Bug: chromium:852420 > Change-Id: I4fab9d6ed7b18085352fa7488c2849b90588deaf > Reviewed-on: https://chromium-review.googlesource.com/1189802 > Commit-Queue: Hannes Payer <hpayer@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55467} TBR=ulan@chromium.org,hpayer@chromium.org,mlippautz@chromium.org Change-Id: I03991a02eb5e06e7db91f88462232dde4bd97f49 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:852420 Reviewed-on: https://chromium-review.googlesource.com/1194005Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#55468}
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Hannes Payer authored
This reverts commit 136ecbb9. Bug: chromium:852420 Change-Id: I4fab9d6ed7b18085352fa7488c2849b90588deaf Reviewed-on: https://chromium-review.googlesource.com/1189802 Commit-Queue: Hannes Payer <hpayer@chromium.org> Reviewed-by:
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Toon Verwaest authored
To avoid recursion cost we now more aggressively inline. The many added branches for this shortcut to work can easily hurt performance as well. Let's try to remove and see what performance looks like nowadays. Change-Id: I93e2d57ebebd6adde836f54ac629cc67dd82f143 Reviewed-on: https://chromium-review.googlesource.com/1194062 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by:
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Michael Starzinger authored
This fixes a race with the aforementioned runtime function where the global map from Isolate to WasmCompileControls was accessed without proper synchronization. These are reported by "TSAN isolates". R=sigurds@chromium.org TEST=mjsunit/wasm/compilation-limits Change-Id: Iaeea7f54cbb5051ca0ca97d75543e38ab9f9addc Reviewed-on: https://chromium-review.googlesource.com/1193243Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#55465}
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Peter Marshall authored
Very large allocations can cause timeouts or crashes on TSAN bots. This test checks the handling of arrays with length > MaxSmi, so allocates a very large array. It's unlikely that TSAN will find anything interesting here that other bots won't catch, so disabling the test. Bug: v8:8103 Change-Id: I8ea01d418ff088a2b9bd1b1ef938d4f69be1155d Reviewed-on: https://chromium-review.googlesource.com/1193423Reviewed-by:
Maya Lekova <mslekova@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#55464}
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Ujjwal Sharma authored
This increases the size of a V8BreakIterator instance by a word to store the next function. The instance to be bound is stored on the context of this builtin function. Bug: v8:5751 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: Ibdfabe53c7d0790c1ba44d5de8d1c8fc8de517c9 Reviewed-on: https://chromium-review.googlesource.com/1193502Reviewed-by:
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Toon Verwaest authored
Change-Id: I6fe237d4aec3745e993a65ddf31f5fafc3ce175d Reviewed-on: https://chromium-review.googlesource.com/1193368Reviewed-by:
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jgruber authored
In preparation for kRootRegister support on ia32. Updated: CallWithSpread, CallWithArrayLike, ConstructWithSpread. Bug: v8:6666 Change-Id: I41c166aebee99356efa5c175739b2124d5557d58 Reviewed-on: https://chromium-review.googlesource.com/1188563Reviewed-by:
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Ross McIlroy authored
With FLAG_preparser_scope_analysis enabled we now always track unresolved variables in the preparser. Fix the logic for deciding on the correct RCS tracing category to be based on what the preparser does. Change-Id: If691d51e6a2c09e554e4d96c10c37060cc7cca96 Reviewed-on: https://chromium-review.googlesource.com/1193303Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#55460}
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Ujjwal Sharma authored
This increases the size of a V8BreakIterator instance by a word to store the first function. The instance to be bound is stored on the context of this builtin function. Bug: v8:5751 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: Ib1e8cb8353d0885e0d9bcfdc5fe558c1de0a0738 Reviewed-on: https://chromium-review.googlesource.com/1192823 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
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jgruber authored
These two builtins are a special case in that their calling convention must be kept in-sync since they are both generated from Generate_CallOrConstructVarargs. ConstructVarargs in particular used all available registers. In order to free ebx, the calling convention is changed to pass the last argument on the stack. As part of this change, the order of the last two arguments is swapped since the stack parameter must be tagged. Bug: v8:6666 Change-Id: If1ad14fc09693c36dd63ffebb6f34fcd3f012896 Reviewed-on: https://chromium-review.googlesource.com/1193444Reviewed-by:
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Michael Starzinger authored
This fixes a crash with a predicate used during stack unwinding of WebAssembly frames during exception handling. The predicate caused an observable side-effect in JavaScript during unwinding, code that is inherently unhandlified and is not allowed to be observable. The fix actually just removes the entire predicate. This is because the updated proposal causes all JavaScript exceptions to participate in WebAssembly exception handling, allowing modelling of "finally" language constructs to perform cleanup independent of the embedders exception details. R=ahaas@chromium.org TEST=mjsunit/regress/wasm/regress-8095 BUG=v8:8095 Change-Id: Ic03bc45e7b7f4562a431ccf910ee9ddcf558aa48 Reviewed-on: https://chromium-review.googlesource.com/1193445Reviewed-by:
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Ross McIlroy authored
This is a reland of 1e5b6d99 Original change's description: > [RCS] Create thread local runtime call stats tables for worker threads > > Creating a runtime call stats table for each worker thread task is expensive. > Instead we create a single table per thread, and use TLS to get the correct one > when starting a worker thread task. > > In order to correctly initialize the parser, scanner and parse-info's runtime > call stats fields, we move creation of the scanner and parser onto the > background tasks for BackgroundCompileTask and UnoptimizedCompilationJob. > > Change-Id: I36064c7fb43290968620b1985cc02637b16f4232 > Reviewed-on: https://chromium-review.googlesource.com/1187522 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55448} TBR=verwaest@chromium.org Change-Id: I7c2f48280651d7632d99ee22d86260c72bc16185 Reviewed-on: https://chromium-review.googlesource.com/1193463 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#55456}
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Creddy authored
There was preformance regression with one-shot optimizations ( https://bugs.chromium.org/p/chromium/issues/detail?id=876839#c4). Disable the one shot optimizations by default until the regrssion is fixed. Change-Id: I031ac2e0151e06fb2116f417ad3d9a3d04da16ac Reviewed-on: https://chromium-review.googlesource.com/1189823Reviewed-by:
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Rodrigo Bruno authored
Reland "[heap] Attempt to incorporate backing store counters into heap sizing and GC trigger stragery." This is a reland of ba735dde Original change's description: > [heap] Attempt to incorporate backing store counters into heap sizing and GC trigger stragery. > > Bug: chromium:845409 > Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng > Change-Id: Ic62a4339110e3dd2a6b1961a246e2bee0c07c03b > Reviewed-on: https://chromium-review.googlesource.com/1160162 > Commit-Queue: Rodrigo Bruno <rfbpb@google.com> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55128} Bug: chromium:845409 Change-Id: Iaff177f7bebbc073460fab0ae4e5cd9e632e1921 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/1177301Reviewed-by:
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Michael Starzinger authored
R=ahaas@chromium.org TEST=mjsunit/wasm/exceptions Change-Id: I6301cf9bcb94e972f4e7eb3d096c650a5afc55ca Reviewed-on: https://chromium-review.googlesource.com/1190343 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
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Hai Dang authored
The SharedFeedbackSlot helper class allow bytecodes to share one feedback slot. The helper will only create the slot on-demand, at the first-use. This does not encapsulate the use-case of FeedbackSlotCache. Change-Id: I22aec19d59e52e7395898fa2a59c5c1ec95abbe8 Reviewed-on: https://chromium-review.googlesource.com/1189904 Commit-Queue: Hai Dang <dhai@google.com> Reviewed-by:
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Simon Zünd authored
This CL re-implements Array.p.lastIndexOf in Torque. The implementation consists of a generic baseline path and a fast-path for JSArrays with fast ElementsKinds. Sparse support for JSArrays was removed. Bug: v8:7624 Change-Id: I6ae877aaf99fa97a91763b3d60a0ee05623ab085 Reviewed-on: https://chromium-review.googlesource.com/1190345 Commit-Queue: Simon Zünd <szuend@google.com> Reviewed-by:
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Toon Verwaest authored
Instead of using explicit current_, next_, and next_next_ pointers we now use a range from token_start_ to token_end_. Upon scan we "precrement" token_end_ to update the scan_target(). This will allow us to increase the buffer size later. Change-Id: I816d208eafc33c29a9888e7040696b56b1409fb8 Reviewed-on: https://chromium-review.googlesource.com/1189984Reviewed-by:
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Maya Lekova authored
This reverts commit 1e5b6d99. Reason for revert: Breaks an arm64 MSAN bot - https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/22601 Original change's description: > [RCS] Create thread local runtime call stats tables for worker threads > > Creating a runtime call stats table for each worker thread task is expensive. > Instead we create a single table per thread, and use TLS to get the correct one > when starting a worker thread task. > > In order to correctly initialize the parser, scanner and parse-info's runtime > call stats fields, we move creation of the scanner and parser onto the > background tasks for BackgroundCompileTask and UnoptimizedCompilationJob. > > Change-Id: I36064c7fb43290968620b1985cc02637b16f4232 > Reviewed-on: https://chromium-review.googlesource.com/1187522 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55448} TBR=rmcilroy@chromium.org,verwaest@chromium.org Change-Id: If3f28e65667816b7ae05c5efcb2f463379bc582b No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/1193224Reviewed-by:
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Ross McIlroy authored
Creating a runtime call stats table for each worker thread task is expensive. Instead we create a single table per thread, and use TLS to get the correct one when starting a worker thread task. In order to correctly initialize the parser, scanner and parse-info's runtime call stats fields, we move creation of the scanner and parser onto the background tasks for BackgroundCompileTask and UnoptimizedCompilationJob. Change-Id: I36064c7fb43290968620b1985cc02637b16f4232 Reviewed-on: https://chromium-review.googlesource.com/1187522Reviewed-by:
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Hai Dang authored
This fixes the wrong JSON data that was not updated by CL 1188572. Change-Id: I8cf1a040fa7faa95b967f8dc995b8222304f5514 Reviewed-on: https://chromium-review.googlesource.com/1193244Reviewed-by:
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Michael Achenbach authored
TBR=delphick@chromium.org NOTRY=true Bug: v8:8058 Change-Id: I7ae59067672a295fb61195ac65226c8cd138d7b9 Reviewed-on: https://chromium-review.googlesource.com/1193284Reviewed-by:
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Toon Verwaest authored
Change-Id: I331ff09ee06db39e2ca051db0a91823f5b8fb402 Reviewed-on: https://chromium-review.googlesource.com/1193262Reviewed-by:
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Ross McIlroy authored
Currently chunked and streaming character streams don't have cloning support as this requires additional changes on the Blink side. BUG=v8:8041 Change-Id: I167b3b1cd5ae1ac4038f3715b6a679d3e65d9a85 Reviewed-on: https://chromium-review.googlesource.com/1183429Reviewed-by:
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Georg Neis authored
Change-Id: Ib967337b140594e70307348e6989b1324a62d71e Reviewed-on: https://chromium-review.googlesource.com/1186641Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
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