- 04 May, 2021 1 commit
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Benedikt Meurer authored
The algorithm used to compute the textual differences uses requires quadratic space (in the size of the input scripts). Previously the implementation was naively allocating a single matrix, which is commonly very sparse, since the expectation for LiveEdit is that only a small portion of the script is actually altered. So we can use a std::map here instead to reduce the cost. We can also significantly reduce the cost (especially of the stack grow due to the recursion) by precomputing the common prefix, and pre-filling the table for the common suffix, both of which are also assumed to make up for the majority of the script in case of LiveEdit. This is still only ducktape, but should mitigate the crashes in the wild significantly. Ideally we'd eventually replace this with an implementation of the Myers algorithm that runs in linear space. Fixed: chromium:1199807 Change-Id: Ib5fa0b1aa63c67631f919dc3b6641dfc0b20ae74 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2867470Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#74344}
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- 30 Apr, 2021 1 commit
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Clemens Backes authored
cpplint rules change over time, and we change the exact rules we enable for v8. This CL removes NOLINT annotations which are not needed according to the currently enabled rules. R=szuend@chromium.org Bug: v8:11717 Change-Id: Icce08a55509b06bacfc75276a2ae69c59e8b021d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2859951Reviewed-by: Simon Zünd <szuend@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#74298}
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- 29 Apr, 2021 1 commit
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Benedikt Meurer authored
The "Restart frame" feature was implemented as part of LiveEdit and primarily used to support LiveEdit of active functions, but that was previously disabled as part of https://crrev.com/c/2846892 because it's too brittle and causes crashes when using seemingly unrelated features. The "Restart frame" feature was also available as a context menu item separately in the DevTools front-end, but that was also already removed as part of https://crrev.com/c/2854681 earlier. So all uses are gone now. This change works by marking Debugger.restartFrame as deprecated and having it respond with a ServerError all the time. It thus allows us to remove a whole bunch of machinery that was essentially just put in various places to support the restart_fp_ magic. In particular the debugger no longer needs any machine specific builtins now. Bug: chromium:1195927 Change-Id: I1153ba6b00e979620af57dd9f58aa1c035ec4484 Fixed: chromium:1203606 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2854750Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#74276}
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- 28 Apr, 2021 1 commit
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Benedikt Meurer authored
Previously we'd allow to replace the source of functions that are on the current execution stack under certain conditions, but this has resulted in an endless stream of bugs due to weird edge cases, and so we're now limiting LiveEdit to functions that don't have any activation (including not a suspended generator / async function activation). We might eventually add the ability to LiveEdit functions with activations and have them "upgrade upon next invocation", but that doesn't seem to be an extremely important use case right now. Fixed: chromium:1195927 Change-Id: I87a45ba4d0ddcfbf867bd4e73738d76b2d789e04 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2846892 Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#74249}
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- 22 Mar, 2021 1 commit
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Ross McIlroy authored
If liveedit patches a script there might be a mismatch between the bytecode on a stackframe and the bytecode on the JSFunction for that same frame. This allows the patched bytecode on the JSFunction to be flushed which breaks the invariant that all JSFunctions with live stack activations are compiled. To prevent this disable bytecode flushing when liveedit patches a script. BUG=v8:11445 Change-Id: I79e7403dfb6dfc317d4313f8cab5118b12c67ed9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2775577 Auto-Submit: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#73559}
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- 19 Feb, 2021 1 commit
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Mike Stanton authored
Code objects are exposed through JSFunction and SharedFunctionInfo. If they are builtins, we don't have to worry about background threads seeing partially initialized code objects. If they are optimized code objects, we may. Background threads read the code fields with AcquireLoad semantics. The fields are set on the main thread with ReleaseStore semantics when appropriate. Special care is taken when setting an optimized code object in a closure in the interpreter entry stub. Since the MacroAssembler doesn't support ReleaseStore semantics, this CL ensures that the optimized code object is stored with those semantics in the feedback vector, where the interpreter entry stub finds it. Bug: v8:7790 Change-Id: I41ecedfe0e9d1ad5091cbe9a97f66c66ca9e07dd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2676633 Commit-Queue: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#72869}
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- 17 Dec, 2020 1 commit
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Nico Hartmann authored
This CL changes SharedFunctionInfo::GetBytecodeArray to a function template, which is specialized for Isolate and LocalIsolate arguments. This allows main thread only uses to avoid taking a lock. Bug: v8:7790, chromium:1154603 Change-Id: I3462c4e36b66073e09393c01c765dd8a018a98f0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2595307 Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#71833}
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- 20 Nov, 2020 1 commit
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Leszek Swirski authored
Because of LocalHeap safepoints, our existing assert scopes don't necessarily maintain the same guarantees as desired. In particular, DisallowHeapAllocation no longer guarantees that objects don't move. This patch transitions DisallowHeapAllocation to DisallowGarbageCollection, to ensure that code using this scope is also protected against safepoints. Change-Id: I0411425884f6849982611205fb17bb072881c722 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2540547 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#71319}
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- 05 Oct, 2020 1 commit
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Santiago Aboy Solanes authored
We can use tag dispatching to distinguish between the synchronized and non-synchronized accessors. Also eliminated the need of adding explicit "synchronized" in the name when using the macros. As a note, we currently have one case of using both relaxed and synchronized accessors (Map::instance_descriptors). Cleaned up: * BytecodeArray::source_position_table * Code::code_data_container * Code::source_position_table * FunctionTemplateInfo::call_code * Map::instance_descriptors * Map::layout_descriptor * SharedFunctionInfo::function_data Bug: v8:7790 Change-Id: I5a502f4b2df6addb6c45056e77061271012c7d90 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2424130 Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#70306}
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- 08 Sep, 2020 1 commit
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Santiago Aboy Solanes authored
Original CL by neis@: http://crrev.com/c/v8/v8/+/2362693/1 Bug: v8:7790, v8:10853 Fixed: v8:10853 Change-Id: If0bd45e9dfb00f8ef1a358953dab1f5e1c9ae29e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2387960Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Cr-Commit-Position: refs/heads/master@{#69742}
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- 06 Jul, 2020 1 commit
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Leszek Swirski authored
This will allow it to take an OffThreadIsolate in the future, without requiring GetIsolate on SharedFunctionInfo. Change-Id: I7db56d5f0587585f829b26e60683c133760d8ff1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2282534Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#68696}
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- 10 Jun, 2020 1 commit
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Leszek Swirski authored
Remove error reporting from parsing::Parse*, since in most cases we didn't actually want them (clear errors afterward), and there was an issue where Compiler::Compile would try to report errors already reported in ParseAny, which ended up triggering unreachable code. As a drive-by, move some one-off parse exception handling in test-parsing into a CHECKED_PARSE_PROGRAM macro which replaces all the "necessarily positive" calls to parsing::ParseProgram. Bug: chromium:1091656 Change-Id: I4d463ec363312aea36ab92f1322cf66a416b9888 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2237134Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#68281}
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- 03 Jun, 2020 1 commit
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Mythri A authored
This is a followup of the cl [1] that fixes a bug where bytecode was getting flushed when allocating feedback vector. The fix added IsCompiledScope before allocating a new feedback vector. We now pass IsCompiledScope to JSFunction::EnsureFeedbackVector. This makes it explicit that EnsureFeedbackVector expects a function that is compiled and the bytecode shouldn't be flushed during the allocation.Also adds a test. [1] https://chromium-review.googlesource.com/c/v8/v8/+/2218066 Bug: v8:10560 Change-Id: I552c449a57555dffa625b2e4efa04c2c276fc0b4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2222347 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#68142}
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- 02 Jun, 2020 1 commit
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Clemens Backes authored
The SourcePositionTableBuilder unconditionally allocates heap memory for every Liftoff compilation. This shows up with 1-2% of compilation time in profiles. Hence move the vector contained in the SourcePositionTableBuilder into the compilation zone. Such a zone already exists for both Liftoff and TurboFan, so we can easily save allocations this way. R=thibaudm@chromium.org Bug: v8:10576 Change-Id: Ia83d05cc8c36c775ebff6ec2064e9c3f8cc4d384 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2224221 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#68112}
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- 06 May, 2020 1 commit
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Leszek Swirski authored
Move rewriting, scope analysis, and internalization, to be unconditional operations done after parsing rather than a separate compile phase. This removes some of the complexity about rememberering when to call Compiler::Analyze, and makes these paths a bit more uniform. Also, forbid allocating any more AST strings after AstValueFactory internalization, by nulling out the Zone. Add an InternalizePartial method which doesn't null out the zone for those cases where we do want to be able to allocate after internalizing (e.g. internalization before scope analysis). Change-Id: Id444246d8362a1d169baf664fc37657d9576fd96 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2182458Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67608}
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- 23 Apr, 2020 1 commit
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Leszek Swirski authored
Move the persistent compilation state and Isolate inputs (such as the allocator, shared AST constants, hash seed, logger, etc.) which survives across both parse and compile, out of ParseInfo and into a new UnoptimizedCompileState class. Also add UnoptimizedCompilePerThreadState for per-thread state such as stack limit and RCS. In particular, this new state survives the ParseInfo being destructed, which means it is available after off-thread finalization. This allows a followup to access the PendingCompilationErrorHandler after finalization and report errors on merge. Bug: v8:10314 Change-Id: Ia186bc0f267c704efd771aa1895f50a4525a8364 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2105636 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#67329}
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- 22 Apr, 2020 1 commit
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Leszek Swirski authored
This is a reland of e1b93a4f which was a reland of 313d4844 which was a reland of 0a59e0cb which was a reland of 146f5375 which was a reland of d91679bf Give up on using C++ bitfields, go back to having base::BitField and getters/setters. Original change's description: > [parser] Introduce UnoptimizedCompileFlags > > UnoptimizedCompileFlags defines the input flags shared between parse and > compile (currently parse-only). It is set initially with some values, and > is immutable after being passed to ParseInfo (ParseInfo still has getters > for the fields, but no setters). > > Since a few of the existing flags were output flags, ParseInfo now has a > new output_flags field, which will eventually migrate to a ParseOutputs > structure. > > Bug: v8:10314 > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#66782} TBR=ulan@chromium.org,szuend@chromium.org Bug: v8:10314 Change-Id: I54bcd107a0e85cf1a2ddeef0759100547eb65652 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157378Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67309}
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- 21 Apr, 2020 4 commits
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Leszek Swirski authored
This reverts commit e1b93a4f. Reason for revert: MSVC failing https://ci.chromium.org/p/v8/builders/ci/V8%20Win64%20-%20msvc/13274 Original change's description: > Reland^4 "[parser] Introduce UnoptimizedCompileFlags" > > This is a reland of 313d4844 > which was a reland of 0a59e0cb > which was a reland of 146f5375 > which was a reland of d91679bf > > Manually zero out flags with memset, since GCC appears not to initialize > the bitfield values to zero even with a default constructor. > > Original change's description: > > [parser] Introduce UnoptimizedCompileFlags > > > > UnoptimizedCompileFlags defines the input flags shared between parse and > > compile (currently parse-only). It is set initially with some values, and > > is immutable after being passed to ParseInfo (ParseInfo still has getters > > for the fields, but no setters). > > > > Since a few of the existing flags were output flags, ParseInfo now has a > > new output_flags field, which will eventually migrate to a ParseOutputs > > structure. > > > > Bug: v8:10314 > > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Simon Zünd <szuend@chromium.org> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#66782} > > TBR=ulan@chromium.org,szuend@chromium.org,rmcilroy@chromium.org > > Bug: v8:10314 > Change-Id: I23bd6f9f14e9d0bbdde91aad46be1a646fd9647d > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157372 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67271} TBR=ulan@chromium.org,rmcilroy@chromium.org,leszeks@chromium.org,szuend@chromium.org Change-Id: I0f41e847d4edae67e131cc6d0f782137ab73bac2 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10314 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157377Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67275}
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Leszek Swirski authored
This is a reland of 313d4844 which was a reland of 0a59e0cb which was a reland of 146f5375 which was a reland of d91679bf Manually zero out flags with memset, since GCC appears not to initialize the bitfield values to zero even with a default constructor. Original change's description: > [parser] Introduce UnoptimizedCompileFlags > > UnoptimizedCompileFlags defines the input flags shared between parse and > compile (currently parse-only). It is set initially with some values, and > is immutable after being passed to ParseInfo (ParseInfo still has getters > for the fields, but no setters). > > Since a few of the existing flags were output flags, ParseInfo now has a > new output_flags field, which will eventually migrate to a ParseOutputs > structure. > > Bug: v8:10314 > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#66782} TBR=ulan@chromium.org,szuend@chromium.org,rmcilroy@chromium.org Bug: v8:10314 Change-Id: I23bd6f9f14e9d0bbdde91aad46be1a646fd9647d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157372Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67271}
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Sathya Gunasekaran authored
This reverts commit 313d4844. Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20gcc/6354 Original change's description: > Reland^3 "[parser] Introduce UnoptimizedCompileFlags" > > This is a reland of 0a59e0cb > which was a reland of 146f5375 > which was a reland of d91679bf > > Initializes the BackgroundCompileTasks's language_mode in the > constructor (previously only initialized after successful parse) in case > the parse failed. We still need to reset it after parse in case the > language mode changed (because we encountered "use strict"). > > Original change's description: > > [parser] Introduce UnoptimizedCompileFlags > > > > UnoptimizedCompileFlags defines the input flags shared between parse and > > compile (currently parse-only). It is set initially with some values, and > > is immutable after being passed to ParseInfo (ParseInfo still has getters > > for the fields, but no setters). > > > > Since a few of the existing flags were output flags, ParseInfo now has a > > new output_flags field, which will eventually migrate to a ParseOutputs > > structure. > > > > Bug: v8:10314 > > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Simon Zünd <szuend@chromium.org> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#66782} > > TBR=ulan@chromium.org,szuend@chromium.org,rmcilroy@chromium.org > > Bug: v8:10314 > Change-Id: Ieee0bbfade4fe0b56de03bff47a7364959608d6a > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157367 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67265} TBR=leszeks@chromium.org Change-Id: I90ac035caa76d4c4baf5ce207247d1ce5169fb2f No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10314 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157370Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#67266}
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Leszek Swirski authored
This is a reland of 0a59e0cb which was a reland of 146f5375 which was a reland of d91679bf Initializes the BackgroundCompileTasks's language_mode in the constructor (previously only initialized after successful parse) in case the parse failed. We still need to reset it after parse in case the language mode changed (because we encountered "use strict"). Original change's description: > [parser] Introduce UnoptimizedCompileFlags > > UnoptimizedCompileFlags defines the input flags shared between parse and > compile (currently parse-only). It is set initially with some values, and > is immutable after being passed to ParseInfo (ParseInfo still has getters > for the fields, but no setters). > > Since a few of the existing flags were output flags, ParseInfo now has a > new output_flags field, which will eventually migrate to a ParseOutputs > structure. > > Bug: v8:10314 > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#66782} TBR=ulan@chromium.org,szuend@chromium.org,rmcilroy@chromium.org Bug: v8:10314 Change-Id: Ieee0bbfade4fe0b56de03bff47a7364959608d6a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157367Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67265}
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- 20 Apr, 2020 4 commits
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Francis McCabe authored
This reverts commit 0a59e0cb. Reason for revert: Still causing UBSAN issues: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/10729 Original change's description: > Reland^2 "[parser] Introduce UnoptimizedCompileFlags" > > This is a reland of d91679bf > which was a reland of d91679bf > > Fixes missing initialization of ParserBase::allow_eval_cache_ > > Original change's description: > > [parser] Introduce UnoptimizedCompileFlags > > > > UnoptimizedCompileFlags defines the input flags shared between parse and > > compile (currently parse-only). It is set initially with some values, and > > is immutable after being passed to ParseInfo (ParseInfo still has getters > > for the fields, but no setters). > > > > Since a few of the existing flags were output flags, ParseInfo now has a > > new output_flags field, which will eventually migrate to a ParseOutputs > > structure. > > > > Bug: v8:10314 > > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Simon Zünd <szuend@chromium.org> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#66782} > > TBR=rmcilroy@chromium.org,ulan@chromium.org,szuend@chromium.org > > Bug: v8:10314 > Change-Id: I470de963bdedad31fe7dd149c610f9a89bffa162 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157030 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67245} TBR=rmcilroy@chromium.org,leszeks@chromium.org Change-Id: I1c5f58cc5608217a149b04aa6f50bb3d7606c26d No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10314 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157657Reviewed-by: Francis McCabe <fgm@chromium.org> Commit-Queue: Francis McCabe <fgm@chromium.org> Cr-Commit-Position: refs/heads/master@{#67250}
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Leszek Swirski authored
This is a reland of d91679bf which was a reland of d91679bf Fixes missing initialization of ParserBase::allow_eval_cache_ Original change's description: > [parser] Introduce UnoptimizedCompileFlags > > UnoptimizedCompileFlags defines the input flags shared between parse and > compile (currently parse-only). It is set initially with some values, and > is immutable after being passed to ParseInfo (ParseInfo still has getters > for the fields, but no setters). > > Since a few of the existing flags were output flags, ParseInfo now has a > new output_flags field, which will eventually migrate to a ParseOutputs > structure. > > Bug: v8:10314 > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#66782} TBR=rmcilroy@chromium.org,ulan@chromium.org,szuend@chromium.org Bug: v8:10314 Change-Id: I470de963bdedad31fe7dd149c610f9a89bffa162 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157030Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67245}
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Leszek Swirski authored
This reverts commit 146f5375. Reason for revert: UBSan (https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/10726?) Original change's description: > Reland "[parser] Introduce UnoptimizedCompileFlags" > > This is a reland of d91679bf > > This reland adds initializers for the output flags. > > Original change's description: > > [parser] Introduce UnoptimizedCompileFlags > > > > UnoptimizedCompileFlags defines the input flags shared between parse and > > compile (currently parse-only). It is set initially with some values, and > > is immutable after being passed to ParseInfo (ParseInfo still has getters > > for the fields, but no setters). > > > > Since a few of the existing flags were output flags, ParseInfo now has a > > new output_flags field, which will eventually migrate to a ParseOutputs > > structure. > > > > Bug: v8:10314 > > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Simon Zünd <szuend@chromium.org> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#66782} > > Bug: v8:10314 > Change-Id: Ibade9658d99fa928709b3d56762c4c002ffff0dc > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2111213 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67241} TBR=ulan@chromium.org,rmcilroy@chromium.org,leszeks@chromium.org,szuend@chromium.org Change-Id: I204eb9e4d0a5bfaeeefeb6b0f1c82856b57cb175 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10314 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157029Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67242}
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Leszek Swirski authored
This is a reland of d91679bf This reland adds initializers for the output flags. Original change's description: > [parser] Introduce UnoptimizedCompileFlags > > UnoptimizedCompileFlags defines the input flags shared between parse and > compile (currently parse-only). It is set initially with some values, and > is immutable after being passed to ParseInfo (ParseInfo still has getters > for the fields, but no setters). > > Since a few of the existing flags were output flags, ParseInfo now has a > new output_flags field, which will eventually migrate to a ParseOutputs > structure. > > Bug: v8:10314 > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#66782} Bug: v8:10314 Change-Id: Ibade9658d99fa928709b3d56762c4c002ffff0dc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2111213 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Simon Zünd <szuend@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67241}
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- 19 Mar, 2020 2 commits
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Leszek Swirski authored
This reverts commit d91679bf. Reason for revert: Seems to cause UBSan errors Original change's description: > [parser] Introduce UnoptimizedCompileFlags > > UnoptimizedCompileFlags defines the input flags shared between parse and > compile (currently parse-only). It is set initially with some values, and > is immutable after being passed to ParseInfo (ParseInfo still has getters > for the fields, but no setters). > > Since a few of the existing flags were output flags, ParseInfo now has a > new output_flags field, which will eventually migrate to a ParseOutputs > structure. > > Bug: v8:10314 > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#66782} TBR=ulan@chromium.org,rmcilroy@chromium.org,leszeks@chromium.org,szuend@chromium.org Change-Id: Ica139e8862e00cd0560638a0236bbaccd7b2188c No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10314 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2108548Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#66783}
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Leszek Swirski authored
UnoptimizedCompileFlags defines the input flags shared between parse and compile (currently parse-only). It is set initially with some values, and is immutable after being passed to ParseInfo (ParseInfo still has getters for the fields, but no setters). Since a few of the existing flags were output flags, ParseInfo now has a new output_flags field, which will eventually migrate to a ParseOutputs structure. Bug: v8:10314 Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Simon Zünd <szuend@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#66782}
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- 02 Mar, 2020 1 commit
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Leszek Swirski authored
Remove OffThreadHandle, HandleOrOffThreadHandle, and HandleFor, and make the OffThreadIsolate allocate "real" Handles. Rather than using the main-thread Isolate's handle scopes, these off-thread Handles are backed by a Zone, which is tied to the lifetime of the nearest OffThreadHandleScope. Eventually, we'll likely want to merge the implementation of OffThreadHandleScope and HandleScope, but currently the latter is too tightly coupled to the main thread to do so. Bug: chromium:1011762 Change-Id: I2a6361931fe3f90a7bef4cc28ee42155fa8d062f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2071865Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#66516}
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- 10 Feb, 2020 1 commit
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Leszek Swirski authored
Make Scope allocation and ScopeInfo creation Isolate-templated. This includes making SourceTextModuleInfo allocation templated -- modules aren't currently streamed off-thread, but will hopefully be in the future, so this future-proofs them against that. Bug: chromium:1011762 Change-Id: I8954e08e8e81489eb821b5f62ec35a5be31fce09 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2043790Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#66197}
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- 04 Feb, 2020 1 commit
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Leszek Swirski authored
The Factory/OffThreadFactory allows us to cleanly separate object construction behaviour between main-thread and off-thread in a syntactically consistent way (so that methods templated on the factory type can be made to work on both). However, there are cases where we also have to access the Isolate, for handle creation or exception throwing. So far we have been pushing more and more "customization points" into the factories to allow these factory-templated methods to dispatch on this isolate behaviour via these factory methods. Unfortunately, this is an increasing layering violation between Factory and Isolate, particularly around exception handling. Now, we introduce an OffThreadIsolate, analogous to Isolate in the same way as OffThreadFactory is analogous to Factory. All methods which were templated on Factory are now templated on Isolate, and methods which used to take an Isolate, and which were recently changed to take a templated Factory, are changed/reverted to take a templated Isolate. OffThreadFactory gets an isolate() method to match Factory's. Notably, FactoryHandle is changed to "HandleFor", where the template argument can be either of the Isolate type or the Factory type (allowing us to dispatch on both depending on what is available). Bug: chromium:1011762 Change-Id: Id144176f7da534dd76f3d535ab2ade008b6845e3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2030909 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#66101}
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- 16 Jan, 2020 1 commit
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Leszek Swirski authored
Add support for internalizing an AstValueFactory using the off-thread factory. Includes adding ConsString support to OffThreadFactory. This introduces a Handle union wrapper, which is used in locations that can store a Handle or an OffThreadHandle. This is used in this patch for the internalized "string" field of AST strings, and will be able to be used for other similar fields in other classes (e.g. the ScopeInfo handle in Scope, object boilerplate descriptor handles, the inferred name handle on FunctionLiterals, etc.). It has a Factory-templated getter which returns the appropriate handle for the factory, and a debug-only tag to make sure the right getter is used at runtime. This union wrapper currently decomposes implicitly to a Handle if the getter is not called, to minimise code changes, but this implicit conversion will likely be removed for clarity. Bug: chromium:1011762 Change-Id: I5dd3a7bbdc483b66f5ff687e0079c545b636dc13 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1993971 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#65816}
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- 08 Jan, 2020 1 commit
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Leszek Swirski authored
Remove the explicit script handle from ParseInfo, and make it either a Handle that is passed around where needed, or one inferred from the SharedFunctionInfo. This will be useful for compilation finalization using the off-thread factory, which will not generate real Handles since it has no access to the Isolate. Bug: chromium:1011762 Change-Id: I5d9564009ec83bb9fc74191b4aa69735d132c2f7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1977861Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65629}
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- 12 Jul, 2019 1 commit
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Peter Marshall authored
Everyone was getting a copy of this through debug.h. Bug: v8:9396 Change-Id: I5189cb4bf27a3381768b0be479d7b3d60dec20bb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1695472 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#62670}
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- 08 Jul, 2019 1 commit
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Clemens Hammacher authored
Cpplint usually checks for non-const reference arguments. They are forbidden in the style guide, and v8 does not explicitly make an exception here. This CL re-enables that warning, and fixes all current violations by adding an explicit "NOLINT(runtime/references)" comment. In follow-up CLs, we should aim to remove as many of them as possible. TBR=mlippautz@chromium.org Bug: v8:9429 Change-Id: If7054d0b366138b731972ed5d4e304b5ac8423bb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687891Reviewed-by: Clemens Hammacher <clemensh@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#62551}
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- 21 Jun, 2019 1 commit
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Ross McIlroy authored
Calling FindIndexInScript performs a linear search on the script functions and can take considerable time. With Bytecode flushing we will lose the function_literal_id and have to call FindIndexInScript if we ever recompile the flushed function. This can take a significant proportion of the recompilation time and has caused regressions in rendering times for some web applications (e.g, 395ms in FindIndexInScript for 132ms spent lazily re-compiling code). To avoid this, add function_literal_id back into the SFI and remove it from UnoptimizedCompileInfo. This will slightly regress memory usage (particularly in cases where many of the SFIs are compiled), however it means we can remove the FindIndexInScript function and avoid these long-tail regressions when bytecode is flushed. BUG=chromium:965833 Change-Id: Ia31e82eb6c871a6d698a518326a8555822a7a1d8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1669700Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#62319}
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- 17 Jun, 2019 1 commit
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Maciej Goszczycki authored
Rename LargeObjectIterator to LargeObjectSpaceObjectIterator. Rename SemiSpaceIterator to SemiSpaceObjectIterator. Rename CombinedHeapIterator to CombinedHeapObjectIterator. Rename ReadOnlyHeapIterator to ReadOnlyHeapObjectIterator. Rename HeapIterator to HeapObjectIterator. Rename HeapObjectIterator to PagedSpaceObjectIterator. Rename PagedSpaces to PagedSpaceIterator. Bug: v8:9183 Change-Id: If4bd65d81e50bb45d207a897baaca8b723e4f10b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1645914Reviewed-by: Hannes Payer <hpayer@chromium.org> Reviewed-by: Dan Elphick <delphick@chromium.org> Commit-Queue: Maciej Goszczycki <goszczycki@google.com> Cr-Commit-Position: refs/heads/master@{#62217}
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- 04 Jun, 2019 1 commit
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Leszek Swirski authored
Avoid the linear lookup of function literal id when getting the shared function info TraceID, by optionally passing through a FunctionLiteral. Additionally, use the FunctionLiteralId helper when a FunctionLiteral is not available, since it can also fast-path in some cases. As a drive-by, allow using a ScriptIterator without an Isolate pointer (e.g. manually creating a handle) to allow calling FunctionLiteralId without an Isolate pointer. Bug: v8:9325 Change-Id: Ibfa053f300d6d5005485c67174a848264a5d1372 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1643429 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#61983}
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- 31 May, 2019 1 commit
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Maciej Goszczycki authored
This makes the API more consistent and reduces the cognitive load of switching between 'next' and 'Next'. Bug: v8:9183 Change-Id: Ia81b874374626887d6af8c90f8ac185812f0573f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1635689Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Dan Elphick <delphick@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Maciej Goszczycki <goszczycki@google.com> Cr-Commit-Position: refs/heads/master@{#61946}
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- 24 May, 2019 1 commit
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Yang Guo authored
TBR=mvstanton@chromium.org,neis@chromium.org,ahaas@chromium.org Bug: v8:9247 Change-Id: I5433c863a54f3412d73df0d38aba3fdbcfac7ebe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627973 Commit-Queue: Yang Guo <yangguo@chromium.org> Auto-Submit: Yang Guo <yangguo@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#61830}
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- 23 May, 2019 1 commit
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Yang Guo authored
TBR=bmeurer@chromium.org,leszeks@chromium.org Bug: v8:9247 Change-Id: I8d14d0192ea8c705f8274e8e61a162531826edb6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624220Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Hannes Payer <hpayer@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#61769}
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