- 24 Aug, 2018 18 commits
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Toon Verwaest authored
This embeds LiteralBuffers in the TokenDesc directly so that we do not need to figure out which one is free; as well as newline tracking. Instead of copying around TokenDesc we now just update the pointer to keep track of the state. Based on this architecture we'll be able to precompute more tokens at once. Change-Id: Ie2e1a95f91713f7ab619fc8632f1eb644884a51f Reviewed-on: https://chromium-review.googlesource.com/1184911 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#55385}
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Simon Zünd authored
Instead of using the slow-path for COW arrays, we now properly copy them and use the fast-path. R=jgruber@chromium.org Change-Id: Iebbad5f761d97c5400c457877571c7930269d52f Reviewed-on: https://chromium-review.googlesource.com/1188130 Commit-Queue: Simon Zünd <szuend@google.com> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#55384}
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Igor Sheludko authored
Bug: v8:7703, chromium:876696 Change-Id: Ida3243414215b2ef75a9875ca31cf5a68274f7e0 Reviewed-on: https://chromium-review.googlesource.com/1185186Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#55383}
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Creddy authored
Change type elements kind in empty array boilerplate desc from PACKED_ELEMENTS to PACKED_SMI_ELEMENTS The default array elements kind should be PACKED_SMI_ELEMENTS (top of type lattice) to allow type transitions to other types. Change-Id: Icda969d0553628ef75d6c26bf6f32fef46512f0f Reviewed-on: https://chromium-review.googlesource.com/1188133Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Chandan Reddy <chandanreddy@google.com> Cr-Commit-Position: refs/heads/master@{#55382}
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Lei Zhang authored
In LiftoffCompiler::EmitTypeConversion() there is a DCHECK_EQ() where one argument is implicitly converted to bool. This confuses MSVC, which causes it to think the two arguments to DCHECK_EQ() do not have the same type. Fix this with an explicit bool conversion!! This does not affect the "v8_win64_msvc_compile_rel" bot, presumably because it is a release bot with DCHECKs turned off. Change-Id: I602ddae7a970e17388730e895eafd4ec78de7602 Reviewed-on: https://chromium-review.googlesource.com/1187702Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org> Cr-Commit-Position: refs/heads/master@{#55381}
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jgruber authored
Prior to this, it was possible to explicitly specify machine types for stack arguments, but these were simply ignored and treated as tagged-by-default when creating the actual CallDescriptor. This verifies that all stack args specified in the descriptor are actually given tagged types, and fails early if that is not the case. Bug: v8:6666 Change-Id: Idb543a11c976d0260fea60d31e30c21b15b32256 Reviewed-on: https://chromium-review.googlesource.com/1186642Reviewed-by:
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Bret Sepulveda authored
Builtin functions were being logged via both LogCodeObjects and LogCompiledFunctions. The latter assumes the code in question has a Name and so would end up logging an unattributable entry. This patch stops logging that entry. Bug: v8:8061 Change-Id: Iebc9bfa9618986afdbf8b1b71b64bf17a1f4196a Reviewed-on: https://chromium-review.googlesource.com/1184923Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Commit-Queue: Bret Sepulveda <bsep@chromium.org> Cr-Commit-Position: refs/heads/master@{#55379}
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Florian Sattler authored
This reduces the enum size to only take up one byte, hence decreasing class size. Bug: v8:7926 Change-Id: Ie50cfcd48541e44394814f375fd72f2b65722fdf Reviewed-on: https://chromium-review.googlesource.com/1186582 Commit-Queue: Florian Sattler <sattlerf@google.com> Reviewed-by:
Marja Hölttä <marja@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#55378}
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Michaël Zasso authored
Introduced in https://chromium-review.googlesource.com/1183431. The namespace was missing making compilation of Node.js with GCC fail. Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I55c1117ab347db17fd8acfa92c653e8cf737586f Reviewed-on: https://chromium-review.googlesource.com/1188126Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Michaël Zasso <mic.besace@gmail.com> Cr-Commit-Position: refs/heads/master@{#55377}
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Michael Lippautz authored
Bug: chromium:843903 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: Ie959e443fdf5dce92c4cd42ef62ec914a13b867e Reviewed-on: https://chromium-review.googlesource.com/1187151 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Cr-Commit-Position: refs/heads/master@{#55376}
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Florian Sattler authored
This is a reland of d16bce9d Original change's description: > [parser] Removed unnecessary copies > > Bug: v8:8015 > Change-Id: I2ee074559484b9865dc1a27e6ea697ca311ee7ee > Reviewed-on: https://chromium-review.googlesource.com/1185198 > Reviewed-by: Marja Hölttä <marja@chromium.org> > Commit-Queue: Florian Sattler <sattlerf@google.com> > Cr-Commit-Position: refs/heads/master@{#55327} Bug: v8:8015 Change-Id: I63cf34898f4bbdba84f44e3769301d028ea49965 Reviewed-on: https://chromium-review.googlesource.com/1188142Reviewed-by:
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Benedikt Meurer authored
The LoadElimination must be able to print Maps, so we need to allow handle dereferencing here. Change-Id: Id39a6db5a4f40ec6212404b3aa30a36fdd1ba57e Reviewed-on: https://chromium-review.googlesource.com/1188127 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#55374}
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Benedikt Meurer authored
In LoadElimination leverage the fact that initializing stores (i.e. stores to freshly allocated objects) cannot touch existing objects, since the object can only escape once it's fully initialized and then all accesses will happen on the FinishRegion node instead of the naked Allocate node. This helps to eliminate the redundant map checks and "length" accesses to arrays, since TurboFan now knows that the iterated array cannot alias with neither the freshly allocated ArrayIterator nor the freshly allocated IterResultObject instances. This improves the times on the benchmark in the tracking bug from console.timeEnd: forOf, 188.111000 console.timeEnd: traditional, 116.380000 console.timeEnd: forOf, 170.721000 console.timeEnd: traditional, 108.209000 console.timeEnd: forOf, 168.491000 console.timeEnd: traditional, 108.839000 to console.timeEnd: forOf, 192.501000 console.timeEnd: traditional, 106.909000 console.timeEnd: forOf, 138.364000 console.timeEnd: traditional, 103.232000 console.timeEnd: forOf, 138.755000 console.timeEnd: traditional, 102.928000 when running with untrusted code mitigations turned off, and thus corresponds to a ~18% performance improvement, roughly cutting the performance difference between the traditional for loop and the for..of loop in half. Besides for..of loops this will also help with array destructuring patterns where TurboFan also emitted redundant map checks on the array and didn't eliminate the redundant "length" accesses. Bug: v8:8070 Change-Id: Iab283247f6d304d1e3c7c147f32ab957577aad21 Reviewed-on: https://chromium-review.googlesource.com/1188124Reviewed-by:
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Kanghua Yu authored
This also refactors CodeAssembler::Branch(condition,true_label,false_label) to support constant folding, and adds Branch(condition,true_label,false_body) variants for special cases. Change-Id: Ifc04442657295124a95c60f76efde5c46de6f1b5 Reviewed-on: https://chromium-review.googlesource.com/1186136 Commit-Queue: Kanghua Yu <kanghua.yu@intel.com> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#55372}
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Simon Zünd authored
This CL fixes the "sort-lengths" benchmark so the ElementsKind of the array to sort is PACKED_SMI again. This was somehow broken. R=jgruber@chromium.org Change-Id: I129e001eae4c88e9f99174b3494193232d933c3f Reviewed-on: https://chromium-review.googlesource.com/1188122Reviewed-by:
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Maya Lekova authored
This reverts commit 8093b4f3. Reason for revert: Breaks the following layout & non-layout bots in "fast/js/date-proto-generic-invocation.html" test https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8-Blink%20Win/14570 https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8-Blink%20Linux%2064/25795 https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8-Blink%20Linux%2064%20(dbg)/13317 https://ci.chromium.org/p/v8/builders/luci.v8.ci/Linux%20Tests%20(dbg)(1)/6565 Original change's description: > Reland "[Intl] move Date.prototype.toLocale{,Date,Time}String to C++" > > This is a reland of 8e57cd51 > > Original change's description: > > [Intl] move Date.prototype.toLocale{,Date,Time}String to C++ > > > > Bug: v8:7961 > > Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng > > Change-Id: Ie75eb443fc0907a4e1e4cafd4f5c06c23794f5a9 > > Reviewed-on: https://chromium-review.googlesource.com/1156123 > > Commit-Queue: Frank Tang <ftang@chromium.org> > > Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#55239} > > Bug: v8:7961 > Change-Id: Ib7dd3b7b3d363b7b8cb2dcd89a5d591fab592c81 > Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng > Reviewed-on: https://chromium-review.googlesource.com/1185763 > Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> > Commit-Queue: Frank Tang <ftang@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55368} TBR=jshin@chromium.org,gsathya@chromium.org,ftang@chromium.org Change-Id: I9ba94daecaca38e86a1f07b649931079ca88b28d No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:7961 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Reviewed-on: https://chromium-review.googlesource.com/1188143Reviewed-by:
Maya Lekova <mslekova@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#55370}
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Simon Zünd authored
This CL adds a baseline implementation for Array.p.reverse in Torque, as well as fastpaths for PACKED elements kinds. Support for sparse JSArrays was removed. R=jgruber@chromium.org, petermarshall@chromium.org Bug: v8:7624 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I12900fbbb44746f1c5d36b78be826e14b88b4f69 Reviewed-on: https://chromium-review.googlesource.com/1185600 Commit-Queue: Simon Zünd <szuend@google.com> Reviewed-by:
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Frank Tang authored
This is a reland of 8e57cd51 Original change's description: > [Intl] move Date.prototype.toLocale{,Date,Time}String to C++ > > Bug: v8:7961 > Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng > Change-Id: Ie75eb443fc0907a4e1e4cafd4f5c06c23794f5a9 > Reviewed-on: https://chromium-review.googlesource.com/1156123 > Commit-Queue: Frank Tang <ftang@chromium.org> > Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55239} Bug: v8:7961 Change-Id: Ib7dd3b7b3d363b7b8cb2dcd89a5d591fab592c81 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Reviewed-on: https://chromium-review.googlesource.com/1185763Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Frank Tang <ftang@chromium.org> Cr-Commit-Position: refs/heads/master@{#55368}
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- 23 Aug, 2018 22 commits
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Michael Achenbach authored
This reverts commit adea021b. Reason for revert: https://crbug.com/v8/8087 Original change's description: > [heap] Reuse object evacuation information for slot recording in Scavenger. > > Bug: chromium:852420 > Change-Id: If092b5c8b093b313807687a27bc29bebd1c4ee5f > Reviewed-on: https://chromium-review.googlesource.com/1187143 > Commit-Queue: Hannes Payer <hpayer@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55364} TBR=ulan@chromium.org,hpayer@chromium.org Change-Id: I480328e852c09f460a38e141eb7d2960c5001d35 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:852420 Reviewed-on: https://chromium-review.googlesource.com/1187301Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#55367}
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Michael Achenbach authored
This reverts commit 524215be. Reason for revert: Breaks cfi: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux64%20-%20cfi/16422 Original change's description: > Use new arraybuffer deleter interface in d8 > > With this cl we start using the custom deleter to free externalized > array buffers. This also allows us to keep wasm memories registered > with the wasm memory tracker and thereby to propagate that a memory > is wasm allocated over postMessage calls. > > Bug: v8:8073, chromium:836800 > Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng > Change-Id: I57e3ea44d9c6633ada7996677dd1de4da810ab64 > Reviewed-on: https://chromium-review.googlesource.com/1186681 > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Commit-Queue: Stephan Herhut <herhut@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55361} TBR=mstarzinger@chromium.org,herhut@chromium.org Change-Id: I64c4e76d8d68bad8df4ba3297c099b9b44eabc7c No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:8073, chromium:836800 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/1187241Reviewed-by:
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Bruce Dawson authored
PAGE_TARGETS_INVALID tells CFG (Control Flow Guard) to mark all addresses as invalid indirect branch targets. This makes exploits more difficult. The benefit is minor because most of the code in the Chrome process doesn't use the CFG checks, but this will close off a few weaknesses and is the direction we will want to go in eventually anyway (with specific targets or call sites opted-in to allowing calls, using SetProcessValidCallTargets). PAGE_TARGETS_INVALID may ultimately cause CFG to not allocate memory - that is implied by Windows Internals 7th Edition - and if that is implemented then this change will save some modest amount of memory. PAGE_TARGETS_INVALID was introduced in Windows 10 - according to Windows Internals Part 1 7th Edition - prior to that it will cause VirtualAlloc to fail. Bug: chromium:870054 Change-Id: Ib1784fba37cc0ecb5fe5df595f1519531b3b3a20 Reviewed-on: https://chromium-review.googlesource.com/1186025 Commit-Queue: Bruce Dawson <brucedawson@chromium.org> Reviewed-by:
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Hannes Payer authored
Bug: chromium:852420 Change-Id: If092b5c8b093b313807687a27bc29bebd1c4ee5f Reviewed-on: https://chromium-review.googlesource.com/1187143 Commit-Queue: Hannes Payer <hpayer@chromium.org> Reviewed-by:
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Ben L. Titzer authored
This is a reland of b10a967f Original change's description: > [wasm] Add feature counter for threads and shared memory > > This adds a feature counter for WASM shared memory (i.e. the presence > of the "shared" bit in a WASM module's memory section) and the usage > of WASM threads opcodes (i.e. wake/wait and atomics). > > This CL also plumbs the WasmFeatures through the compilation pipeline > to detect features as functions are being compiled. > > R=ahaas@chromium.org, ulan@chromium.org > BUG=chromium:868844 > > Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng > Change-Id: I854f932d3adb16e4fd87196fe2a193950295b856 > Reviewed-on: https://chromium-review.googlesource.com/1186329 > Reviewed-by: Andreas Haas <ahaas@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Commit-Queue: Ben Titzer <titzer@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55337} Bug: chromium:868844 Change-Id: Iac3a38d80fa71aadd7147704669a8fd671ecfae8 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/1186343 Commit-Queue: Ben Titzer <titzer@chromium.org> Reviewed-by:
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Michael Starzinger authored
R=herhut@chromium.org Change-Id: I572a240f0d8f4598e3b4357d50329bcdafd7c60c Reviewed-on: https://chromium-review.googlesource.com/1186585Reviewed-by:
Stephan Herhut <herhut@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#55362}
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Stephan Herhut authored
With this cl we start using the custom deleter to free externalized array buffers. This also allows us to keep wasm memories registered with the wasm memory tracker and thereby to propagate that a memory is wasm allocated over postMessage calls. Bug: v8:8073, chromium:836800 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I57e3ea44d9c6633ada7996677dd1de4da810ab64 Reviewed-on: https://chromium-review.googlesource.com/1186681Reviewed-by:
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Simon Zünd authored
This is a reland of 9e48a24f Original change's description: > Reland "[array] Move Array.p.sort to Torque and use TimSort instead of QuickSort" > > The CL was reverted because it broke some tests in ChromeOS. > > > [array] Move Array.p.sort to Torque and use TimSort instead of QuickSort > > > > This CL changes the sorting algorithm used in Array.p.sort from > > QuickSort to TimSort (implemented in Torque). > > > > Detailed performance results can be found here: https://goo.gl/4E733J > > > > To save on code space, fast-paths are implemented as sets of > > function pointers instead of specializing generics. > > > > R=cbruni@chromium.org, jgruber@chromium.org > > > > Bug: v8:7382, v8:7624 > > Change-Id: I7cd4287e4562d84ab7c79c58ae30780630f976de > > Reviewed-on: https://chromium-review.googlesource.com/1151199 > > Commit-Queue: Simon Zünd <szuend@google.com> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Camillo Bruni <cbruni@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#55003} > > Bug: v8:7382, v8:7624 > Change-Id: Ic7a3230f3708177774b0760f08b7659d83ec5505 > Reviewed-on: https://chromium-review.googlesource.com/1184901 > Commit-Queue: Simon Zünd <szuend@google.com> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55325} Bug: v8:7382, v8:7624 Change-Id: I297611f45c09967e0f6961156b0c9ebdebc7053f Reviewed-on: https://chromium-review.googlesource.com/1186801 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
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Bill Budge authored
Change-Id: I0870a13fd257e014a3b6dca8ee7ccb3aa5485066 Reviewed-on: https://chromium-review.googlesource.com/1183525Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
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Ben L. Titzer authored
The WasmCompilationData was a struct that served as an input/output mechanism for communicating with the code generator. In particular, it contained a flag for enabling runtime exception for WASM in the code generator and it also gathered the protected instruction info from the code generator to be communicated to the WasmCodeManager. This CL inlines the exception support flag into OptimizedCompilationInfo and the protected instruction information into the code generator, along the lines of other flags and data structures created by the code generator. R=mstarzinger@chromium.org Change-Id: If436636067f1a829a095310a73045fe3301cb694 Reviewed-on: https://chromium-review.googlesource.com/1186409 Commit-Queue: Ben Titzer <titzer@chromium.org> Reviewed-by:
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Ben L. Titzer authored
Note that this splits off counters added in https://chromium-review.googlesource.com/c/v8/v8/+/1186343 R=ahaas@chromium.org Bug: chromium:868844 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I263c63a51d8ce3418eacabb6beb11fa1b3dfaa96 Reviewed-on: https://chromium-review.googlesource.com/1186721Reviewed-by:
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Sigurd Schneider authored
This CL removed padding from Abort on ARM, which is no longer needed. Bug: v8:8054 Change-Id: I7ff0b88ba90e10d15b67b5ae8ca80f2cf7460498 Reviewed-on: https://chromium-review.googlesource.com/1183664 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Maya Lekova authored
This reverts commit 9e48a24f. Reason for revert: Possibly breaking the V8-Blink Mac bot - https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8-Blink%20Mac/15097 Original change's description: > Reland "[array] Move Array.p.sort to Torque and use TimSort instead of QuickSort" > > The CL was reverted because it broke some tests in ChromeOS. > > > [array] Move Array.p.sort to Torque and use TimSort instead of QuickSort > > > > This CL changes the sorting algorithm used in Array.p.sort from > > QuickSort to TimSort (implemented in Torque). > > > > Detailed performance results can be found here: https://goo.gl/4E733J > > > > To save on code space, fast-paths are implemented as sets of > > function pointers instead of specializing generics. > > > > R=cbruni@chromium.org, jgruber@chromium.org > > > > Bug: v8:7382, v8:7624 > > Change-Id: I7cd4287e4562d84ab7c79c58ae30780630f976de > > Reviewed-on: https://chromium-review.googlesource.com/1151199 > > Commit-Queue: Simon Zünd <szuend@google.com> > > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > > Reviewed-by: Camillo Bruni <cbruni@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#55003} > > Bug: v8:7382, v8:7624 > Change-Id: Ic7a3230f3708177774b0760f08b7659d83ec5505 > Reviewed-on: https://chromium-review.googlesource.com/1184901 > Commit-Queue: Simon Zünd <szuend@google.com> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55325} TBR=jgruber@chromium.org,szuend@google.com Change-Id: Ie7e2af57a6480aa0504ba21ec98ee825d7ac74fe No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:7382, v8:7624 Reviewed-on: https://chromium-review.googlesource.com/1186601Reviewed-by:
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Maya Lekova authored
The test is timing out on the Arm simulator when TimSort is disabled. NOTRY=true TBR=sigurds@chromium.org Bug: v8:7783 Change-Id: I51e159822d0010253a458f0c380c52f27f7fe972 Reviewed-on: https://chromium-review.googlesource.com/1186583 Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by:
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Sigurd Schneider authored
This change writes a magic number into the root register, and checks that we have the number still in at StackChecks. Change-Id: Ib00d2a7ede651997ae9459cf4bdcc6be3952353b Bug: v8:6666 Reviewed-on: https://chromium-review.googlesource.com/1186402 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Florian Sattler authored
Removing bitfields because they regressed code-load performance on arm. Bug: v8:7926 Change-Id: Id7f8b26b76203c6a45ba408945abb1a2d1ad9d5b Reviewed-on: https://chromium-review.googlesource.com/1186419Reviewed-by:
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Michael Starzinger authored
R=sigurds@chromium.org Change-Id: Ib024d099946d4351bfce9de8eb61be1dba5e1ce5 Reviewed-on: https://chromium-review.googlesource.com/1186415 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#55351}
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Michael Starzinger authored
R=titzer@chromium.org BUG=v8:6408 Change-Id: I277beafaace334883ddbe63b9615e3f18085ce5e Reviewed-on: https://chromium-review.googlesource.com/1186411 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Ben Titzer <titzer@chromium.org> Cr-Commit-Position: refs/heads/master@{#55350}
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Creddy authored
No need to create allocation site for array literals in oneshot code since they are executed only once. The interpreter emits a runtime call to CreateArrayLiteralWithoutAllocationSite for creating literals in oneshot code instead. Change-Id: I285879c84759ff9e2ce281e9548112f52ce5e7d1 Reviewed-on: https://chromium-review.googlesource.com/1167843Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Camillo Bruni <cbruni@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Commit-Queue: Chandan Reddy <chandanreddy@google.com> Cr-Commit-Position: refs/heads/master@{#55349}
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Peter Marshall authored
The constructor that accepts a size for vector default initializes the elements. Using reserve() instead avoids this but still ensures the capacity. Change-Id: I8effb62ba1f9598a0081c2c959b2f7a5d6c587e6 Reviewed-on: https://chromium-review.googlesource.com/1186407Reviewed-by:
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Stephan Herhut authored
Currently, we use an AllocationKind to signal to the embedder how v8 has allocated the backingstore of an array buffer. The embedder then has to implement matching logic to free an exernalized buffer. By Using custom deleters v8 can communicate how to free an externalized array buffer without requiring all embedders to implement corresponding freeing logic. Bug: v8:8073 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I553dec31ba167d6a7b342ded50d685be7dffd1c5 Reviewed-on: https://chromium-review.googlesource.com/1183484 Commit-Queue: Stephan Herhut <herhut@chromium.org> Reviewed-by:
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Benedikt Meurer authored
Use CheckBounds and reduce the number of checks required to sanitize the indices for DataView accesses in optimized code. Also constant-fold the [[ByteLength]] if the DataView is a known compile-time constant (similar to what we do for TypedArrays already). This further improves performance of DataViews by 2-7% depending on the exact test case. With this change DataView and TypedArray accesses themselves are mostly on par performance wise. Since this CL introduces proper CheckBounds for the DataViews, instead of the hand-craftet bounds checks, it is expected to regress performance when untrusted code mitigations are on, since DataViews are also guarded in optimized now. Without untrusted code mitigations, there's no negative performance impact. Tbr: sigurds@chromium.org Bug: chromium:225811, chromium:876005 Change-Id: I4a69f81124635c9ba2c7e4c2dc912e2fd601061a Reviewed-on: https://chromium-review.googlesource.com/1186408Reviewed-by:
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