- 20 Apr, 2020 10 commits
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Leszek Swirski authored
Space::AllocationStep already allocates a filler object at the given address, so there's no need to do another filler object allocation in the sampling profiler. In addition, this breaks allocation stepping over areas that have already been initialized, such as off-thread pages being merged. Instead, we replace it with a DCHECK that there is a map at the start of the allocated chunk, which serves as a proxy for "this area is iteratable" Change-Id: Ia0a1375ac83b944cf5631e6bef341805d27b6e96 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2122029 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67230}
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Michael Achenbach authored
NOTRY=true Bug: v8:10249 Change-Id: I349d877688c6ea86db9974f28c32b02014b58ba2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154791Reviewed-by:
Georg Neis <neis@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#67229}
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Ulan Degenbaev authored
The flag is true by default and passing --noincremental-marking-on-allocation disables starting of incremental marking on allocation and incremental marking steps on allocation. Change-Id: I4537e0eeaaf93fb713fcacd3860e29b98df441fc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154194Reviewed-by:
Hannes Payer <hpayer@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67228}
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Ulan Degenbaev authored
These GC events will not be visualized in DevTools UI. The intention is to have these events in JSON trace file for manual inspection during offline/postmortem investigation of GC performance issues. Bug: chromium:1072352 Change-Id: I3b05a0b2e5299f9d00d4c940eaf598a48f746aa2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154796Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67227}
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Mythri A authored
The fast store handlers create elements and if we have a typed array on the prototype chain it is not easy to check when it is OK to create new elements. The TypedArrays swallow all OOB stores, and there is no easy way to check if the current store is OOB for JSObjects. So use slow stub when there are typed arrays on the prorotype chain of JSObjects. Bug: chromium:1068492 Change-Id: I9eea9cf00e3eb84931c5545d18ba53c4ec39f353 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2134138 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#67226}
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Sathya Gunasekaran authored
Previously, one single retained maps list was used across all contexts. When one context was disposed, this entire list of retained maps was disposed as well. This caused maps that were still alive to be disposed leading to deopts when such maps were embedded in code objects. This patch makes the list of retained maps be per context so we can dispose only the dead maps. Bug: v8:9684, v8:10431 Change-Id: I0a50f4f49c9f6d72367c62e950828a039220fdfc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2122016Reviewed-by:
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Marja Hölttä authored
Spec: https://github.com/tc39/proposal-promise-any Bug: v8:9808 Change-Id: I568b2444df9f00f615f2cda1268e4ecc5b36667e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2139571 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
Shu-yu Guo <syg@chromium.org> Reviewed-by:
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Ulan Degenbaev authored
Deserializer can trigger OOB read in the marking bitmap inside the RegisterDeserializedObjectsForBlackAllocation function. This happens for example if an internalized string is deserialized as the last object on a page and is the turned into a thin-string leaving a one-word filler at the end of the page. In such a case IsBlack(filler) will try to fetch a cell outside the marking bitmap. The fix is to increase the size of the marking bitmap by one cell, so that it is always safe to query markbits of any object on a page. Bug: chromium:978156 Change-Id: If3c74e4f97d2caeb3c3f37a4147f38dea5f0e5a8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2152838 Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Cr-Commit-Position: refs/heads/master@{#67223}
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Georg Neis authored
... against potential typer bugs. Instead of simply eliminating the operation, insert an aborting bounds check instead. Also move this transformation out of SimplifiedLowering, which is already complex enough without doing these kinds of optimizations. Unfortunately this will result in some missed optimization opportunities because we may have more precise types during SimplifiedLowering. Let's see if this makes a visible performance difference. Change-Id: I9c16ad33104c29fdba39bf729d69ee03fc9797d6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2129633 Commit-Queue: Georg Neis <neis@chromium.org> Reviewed-by:
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Zhao Jiazhong authored
Port 1d8f1376 https://crrev.com/c/2154048 Change-Id: I7237e784d86cd78e936741a47887c2efe731cbbb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2156165Reviewed-by:
Clemens Backes <clemensb@chromium.org> Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Cr-Commit-Position: refs/heads/master@{#67221}
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- 19 Apr, 2020 1 commit
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Michael Achenbach authored
Bug: chromium:1063568 Change-Id: I69ae644cc02549eb6c8c3b6169e9b1db2ee4e27e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2144067 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Reviewed-by:
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- 18 Apr, 2020 2 commits
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Shu-yu Guo authored
Both features shipped in M80. Bug: v8:9547, v8:9553 Change-Id: I7a34db05796f22bcc112c36a42826e7c926a7364 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154768 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Auto-Submit: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#67219}
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Kong, Fanchen authored
Bug: v8:9909 Change-Id: I95262d0ab550d41b7c5e2ce4eb9ec8164c53e892 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154048Reviewed-by:
Zhi An Ng <zhin@chromium.org> Commit-Queue: Fanchen Kong <fanchen.kong@intel.com> Cr-Commit-Position: refs/heads/master@{#67218}
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- 17 Apr, 2020 27 commits
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Sami Kyostila authored
This patch replaces V8's tracing implementation (i.e., the TRACE_EVENT macros) with the track event base implementation from Perfetto. The advantages of doing this are: 1) This allows us to remove most tracing-related backend code from V8. 2) V8 can start writing strongly typed trace event arguments, which are more compact, easier to process and more extensible than legacy JSON-based trace arguments. For the time being, we still support the old trace macros when V8 is embedded into Chrome and other embedders. Design doc: https://docs.google.com/document/d/1f7tt4cb-JcA5bQFR1oXk60ncJPpkL02_Hi_Bc6MfTQk/edit#heading=h.398p6b4eaen2 Bug: chromium:1006766 Change-Id: Ie71474fbe065821772b13d851487ebbca680c4ae Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1947688 Commit-Queue: Sami Kyöstilä <skyostil@chromium.org> Auto-Submit: Sami Kyöstilä <skyostil@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#67217}
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Ng Zhi An authored
Bug: chromium:1071711 Bug: v8:10258 Change-Id: Id19add0c7e77ee3b834ff47274b9986cc2aa1f69 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154767Reviewed-by:
Deepti Gandluri <gdeepti@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#67216}
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Jakob Kummerow authored
And a new flag --experimental-wasm-gc, which doesn't do anything yet. Bug: v8:7748 Change-Id: I927d1d90559249db3ee9f8d240775d45098e52a6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154197 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#67215}
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Milad Farazmand authored
Port 3c809e0d Original Commit Message: .type directive is required on arm to enable ARM/Thumb interworking. R=mlippautz@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: I5aa258033fc89dbb1165b926c3351abc45ed9d85 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154836Reviewed-by:
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Clemens Backes authored
{StaticCharVector}, according to its name, should return a {Vector<const char>}. For getting a {Vector<const uint8_t>}, the method should be called {StaticOneByteVector}, analog to the {OneByteVector} methods that already exist. Also, {StaticCharVector} is constexpr, but {StaticOneByteVector} cannot be, since it contains a {reinterpret_cast}. The same holds for {Vector::cast} in general. This CL - changes the return type of {StaticCharVector} to be {Vector<const char>}, - introduces a new {StaticOneByteVector} which returns {Vector<const uint8_t>}, - fixes constexpr annotations at various methods returning {Vector}s, - refactors users of {StaticCharVector} to either use {StaticOneByteVector} instead, or work on {char} if that makes more sense. R=leszeks@chromium.org Bug: v8:10426 Change-Id: I71e336097e41ad30f982aa6344ca3d67b3a01fe3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154196 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#67213}
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Seth Brenith authored
Currently it's possible to hit an internal compiler error by declaring a non-extern class that doesn't extend anything. It's not very meanigful for a class to not extend from anything, so the parser should enforce this requirement. Change-Id: I38064f87345d28ce84521261bbfd33d9b1c71334 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153847 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by:
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Milad Farazmand authored
Change-Id: I436c779613e7ddf4b5c830807414dbc8787b89f5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2151103Reviewed-by:
Junliang Yan <jyan@ca.ibm.com> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#67211}
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Clemens Backes authored
Test some constexpr factories. StaticCharVector is not actually constexpr, this will be fixed in a follow-up CL. R=leszeks@chromium.org Bug: v8:10426 Change-Id: I16fdf79cd7d4b3f54d7cf73e15bdff2306810f06 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154192 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
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Milad Farazmand authored
Port fc29c453 Port 8ef2f799 R=zhiguo.zhou@intel.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: If84d63be9864ab2ff10b522018ecbac0c56b2bea Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154765Reviewed-by:
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Jakob Kummerow authored
These opcodes are not officially specified yet, they are defined in the "prototype implementation spec" at https://bit.ly/3cWcm6Q. Drive-by: drop a unit test whose entire coverage can be provided by a compile-time check. Bug: v8:7748 Change-Id: Icefa6dd321802c8a01c4561178b9d21eca1fbaa3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2152841Reviewed-by:
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Clemens Backes authored
Even though {Factory::InternalizeString} was declared as a template, only two instantiations exists: uint8_t and uint16_t. Using any other type leads to link-time errors, which is inconvenient. This CL implements the two instantiations explicitly, and provides a third implementation taking a {Vector<const char>}. This will be used after the next CL, which changes {StaticCharVector} to actually return a {Vector<const char>}. This also avoid the cumbersome template exports. R=leszeks@chromium.org Bug: v8:10426 Change-Id: I3f669fae2c711ade6f5a087e59210ad457423a66 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2152837 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: -
Clemens Backes authored
Use proper gtest macros for testing expected values. R=leszeks@chromium.org Bug: v8:10426 Change-Id: Ibdbbf4d05b0a8914f52a270d21a9087c019396b0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2152836Reviewed-by:
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Clemens Backes authored
This adds another enum value in the {ForDebugging} enum for stepping code. By not adding the code to the code table and jump table, we will never execute this code via a wasm function call. The code will only be used for the one frame where we want to step through. This speeds up stepping over recursive calls enormously, since the recursive calls don't run into the flooded breakpoints any more. It also fixes issues with non-local control flow, i.e. catching a trap and reentering the same wasm function. R=thibaudm@chromium.org Bug: v8:10235 Change-Id: Idb304dd465418f842016a20c21d68989bb78cf1d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153205 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#67205}
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Yang Guo authored
Fixed: chromium:986051 Change-Id: I01ef94fe43ac5c8734890706a6dccd01e008bfec Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153215Reviewed-by:
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Michael Lippautz authored
Supported HW architectures: ia32, x64, arm, arm64, ppc64, s390, mips, mips64 Compiler support: - clang/gcc: all - msvc tools: ia32, x64, arm64 Thanks all for porting! Bug: chromium:1056170 Change-Id: I26ea7d727dc6d90929941668b8f115bdbaf226ab Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153210 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Anton Bikineev <bikineev@chromium.org> Reviewed-by:
Omer Katz <omerkatz@chromium.org> Cr-Commit-Position: refs/heads/master@{#67203}
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Clemens Backes authored
Stepping only happens in one frame at a time, so we don't need to rewrite the whole stack. This allows us to remove the {flooded_function_index_}, since no function is globally flooded any more. A follow-up CL will ensure that the code will also not be installed in the code table and jump table any more, to fix issues with non-local control flow (i.e. catching a trap and reentering wasm), where we could currently accidentally execute flooded code. It will also speed up stepping over recursive calls enormously, since the recursive calls don't run into the flooded breakpoints any more. R=thibaudm@chromium.org Bug: v8:10235 Change-Id: Ifae5e35c3242c95e1fe1a89a169ce874b818a288 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2152646Reviewed-by: -
Adam Kallai authored
NEONFormatDecoder::Substitute function utilizes snprintf() to substitute arrangement specifier into a format string. Some instruction format strings (e.i. ld4r) are specified with '%n$' positional parameter fields, but on Windows snprintf function doesn't support these parameters. NEONFormatDecoder logic is extended to handle four parameters in order to avoid using positional parameters. Bug: v8:10365 Change-Id: I79d4014c6b45d698ca47090a74c30e4eae856334 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2148776Reviewed-by:
Martyn Capewell <martyn.capewell@arm.com> Reviewed-by:
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Paolo Severini authored
This changelist adds to the GDB stub (in class wasm::gdb_server::Target) the logic to decode and execute GDB-remote commands and to format response packets to be sent back to the debugger. Here most of the commands still act as a NOOP; the actual implementation requires interactions with the Wasm engine and will be implemented in the next CL of this series. Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Bug: chromium:1010467 Change-Id: Icfa63be9e1eaa657c05876d0d4e86927e0885b90 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1938466 Commit-Queue: Paolo Severini <paolosev@microsoft.com> Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
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Zhao Jiazhong authored
Port 8ef2f799 https://crrev.com/c/2150157 Change-Id: I70ffb8e0c669398339eb6e794bef2b7920b58cd3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153194Reviewed-by:
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Jiaxun Yang authored
GAS have a auto-align function which will align all the directive data into it's nature boundary. And we're using .octa to present data in embedded.S, which will be auto-aligned into 128-bit boundary. It can break relatve offset in generated binary. So we workaround it by forcing generate .long DataDirective on MIPS. Also I rewoked WriteByteChunk so it can accept any kind of directive now. Further more, implementation of HexLiteral is indentical on generic, aix and mac so I merged them into base. Bug: v8:10420 Change-Id: I0ff791412360769510735659f909524c5f96d3e0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153187Reviewed-by:
Dan Elphick <delphick@chromium.org> Commit-Queue: Dan Elphick <delphick@chromium.org> Cr-Commit-Position: refs/heads/master@{#67198}
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Liviu Rau authored
No-Tree-Checks: true No-Try: true Bug: v8:10302 Change-Id: Ic6cf0fdf2151e0ea3cb6d42789f5499b5b70bd4a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2150591Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#67197}
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Paolo Severini authored
This changelist adds the logic to format, decode, sends and receive packets in the format specified by the GDB-remote protocol (https://sourceware.org/gdb/onlinedocs/gdb/Overview.html#Overview). Build with: v8_enable_wasm_gdb_remote_debugging = true Run with: --wasm-gdb-remote Bug: chromium:1010467 Change-Id: Ibc9c6713c561d06847b472fab591c208c193199f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1929409 Commit-Queue: Paolo Severini <paolosev@microsoft.com> Reviewed-by:
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Mythri A authored
Check that the argument passed to %OptimizeOsr is smi before accessing it. If it isn't an Smi we crash unless we are fuzzing. When fuzzing, this returns early (turns into a Nop) if the argument isn't an Smi. Bug: chromium:1071045 Change-Id: Iff1ee3e368dfffdbbbab4107dc355d5460b996e9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2150602 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by:
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Liviu Rau authored
This reverts commit 128368c3. Reason for revert: Just to trigger builders Original change's description: > Whitespace to trigger builders > > TBR: machecnbach@chromium.org > No-Presubmit: true > No-Tree-Checks: true > No-Try: true > Change-Id: I208d974b1da1983a8fa5996e6819779bd35d8710 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153216 > Commit-Queue: Liviu Rau <liviurau@chromium.org> > Reviewed-by: Liviu Rau <liviurau@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67193} TBR=machenbach@chromium.org,liviurau@chromium.org Change-Id: I87aa28cd4c50d2c63f17e7ccc50425bf05faa39f No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153218Reviewed-by:
Liviu Rau <liviurau@chromium.org> Commit-Queue: Liviu Rau <liviurau@chromium.org> Cr-Commit-Position: refs/heads/master@{#67194}
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Liviu Rau authored
TBR: machecnbach@chromium.org No-Presubmit: true No-Tree-Checks: true No-Try: true Change-Id: I208d974b1da1983a8fa5996e6819779bd35d8710 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153216 Commit-Queue: Liviu Rau <liviurau@chromium.org> Reviewed-by:
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Zhao Jiazhong authored
Port fc29c453 https://crrev.com/c/2148640 Change-Id: I75092072ac6961c26559bd69d6a8413d2e9d2689 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153189Reviewed-by:
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Kong, Fanchen authored
Bug: v8:9909 Change-Id: Ic71a2a012cbd538d65afb047fe73e98be6454aed Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2150157 Commit-Queue: Fanchen Kong <fanchen.kong@intel.com> Reviewed-by:
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