- 25 May, 2018 7 commits
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jgruber authored
At runtime, calls to embedded builtins do not need to take the indirection through the off-heap trampoline. We can simply inline the trampoline instead. Bug: v8:6666 Change-Id: Idb7d504fdfee173a0b134fbc74bd5dc6d09629cb Reviewed-on: https://chromium-review.googlesource.com/1068742Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#53354}
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Tobias Tebbi authored
Bug: v8:7754 Change-Id: I4664a86ca0daccdd977f6a1b89c0f33294f084a1 Reviewed-on: https://chromium-review.googlesource.com/1073149Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#53353}
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Michael Starzinger authored
This loads references to {null} values from the instance object instead of embedding them into the generated code. It is one step towards making the {WasmCode} objects independent of the Isolate. Note that this also fixes an issue with the serializer/deserializer that failed to properly serialize {null} values and accidentally collapsed them to {undefined} values instead. R=ahaas@chromium.org TEST=mjsunit/regress/wasm/regress-7785 BUG=v8:7424,v8:7785 Change-Id: Ie436c2d96890e7c8c89ffe2bd4189a759254775b Reviewed-on: https://chromium-review.googlesource.com/1070981 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#53352}
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Stephan Herhut authored
This adds basic support to emit IA disassembly to the json files digested by turbolizer. Change-Id: I8964c2f44565e8242e09c9be879c7db2654b65b6 Reviewed-on: https://chromium-review.googlesource.com/1071669Reviewed-by:
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Marja Hölttä authored
BUG=v8:7308 Change-Id: Ia74e5696133ec183ff550da011452b0c12a06e40 Reviewed-on: https://chromium-review.googlesource.com/1068883 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#53350}
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jgruber authored
This addresses one of the major remaining slowdowns with embedded builtins on x64. When generating code for a call to a builtin callee from a builtin caller, we'd look up the Code target object from the builtins constant list, calculate the location of the first instruction, and jump to it. Note that for embedded builtin callees, the Code object is itself only a trampoline to the off-heap code and thus an additional indirection. An example of the call sequence in pseudo-asm: // Load from the constants list. mov reg, [kRootPointer, kBuiltinsConstantListOffset] mov reg, [reg, offset_of_the_code_constant] // Calculate first instruction and call it. add reg, Code::kHeaderOffset call reg // The trampoline forwards to the off-heap area. mov kOffHeapTrampolineRegister, <off-heap instruction_start> jmp kOffHeapTrampolineRegister This CL changes calls to embedded builtin targets to use pc-relative addressing. This reduces the above instruction sequence to: call <pc-relative offset to target instruction_start> Embedded-to-embedded calls jump directly to the embedded instruction stream, bypassing the trampoline. Heap-to-embedded calls (and all calls to heap-builtins) use pc-relative addressing targeting the on-heap Code object. Other relevant platforms (arm,arm64,mips,mips64) do not use pc-relative calls. For these, we'll need a different solution, e.g. a table of embedded builtin addresses reachable from the root pointer, similar to the external reference table. Bug: v8:6666 Change-Id: Ic0317d454e2da37d74eaecebcdfcbc0d5f5041ad Reviewed-on: https://chromium-review.googlesource.com/1068732 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
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Junliang Yan authored
Port ea7499f5 Original Commit Message: Currently, we context allocate all parameters for generators. With this CL, we keep arguments on stack (unless they escape to inner closure) and copy them between the stack and the generator's register file on suspend/resume. This will save context allocation in most cases. - Suspend copies arguments and registers to the generator. - Resume copies only the registers from the generator, the arguments are copied by the ResumeGenerator trampoline. R=jarin@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: I4a22024ce4e29a4e0217697a3b53b1c7bba0ddf1 Reviewed-on: https://chromium-review.googlesource.com/1072309Reviewed-by:
Joran Siu <joransiu@ca.ibm.com> Commit-Queue: Junliang Yan <jyan@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#53348}
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- 24 May, 2018 31 commits
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Andreas Haas authored
At the moment, WebAssembly.instantiate(bytes) is implemented by desugaring it to WebAssembly.compile(bytes).then(WebAssembly.instantiate). The problem is that the {then} in this snippet is observable. With this CL I introduce a CompilationResultResolver which allows to do the desugaring internally and thereby make the {then} unobservable. Unfortunately the result of WebAssembly.instantiate(bytes) is different than the result of WebAssembly.instantiate(module). Therefore I also introduced an InstantiationResultResolver for symmetry with WebAssembly.compile. R=mstarzinger@chromium.org Bug: chromium:837417 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I2d98e03d65f2ada19041d5a9e2df5da91b24ccca Reviewed-on: https://chromium-review.googlesource.com/1059783 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by: -
Aseem Garg authored
R=gdeepti@chromium.org,bbudge@chromium.org,clemensh@chromium.org,titzer@chromium.org BUG=v8:6020 Change-Id: Ibc4e45df65ad8fc649e42b2166545cbc5fcb4296 Reviewed-on: https://chromium-review.googlesource.com/1070933Reviewed-by:
Ben Titzer <titzer@chromium.org> Commit-Queue: Aseem Garg <aseemgarg@chromium.org> Cr-Commit-Position: refs/heads/master@{#53346}
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Hannes Payer authored
Bug: chromium:846360 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I5376d4f6f9c8df768d60c63e0a767bf41b51b8b3 Reviewed-on: https://chromium-review.googlesource.com/1071531Reviewed-by:
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Michael Achenbach authored
TBR=sigurds@chromium.org NOTRY=true Bug: chromium:820416 Change-Id: Ibd6fec04a9ea610c83c9347b4971f5ffea1fa80d Reviewed-on: https://chromium-review.googlesource.com/1071521 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#53344}
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Sreten Kovacevic authored
Implement lowering for simd operations I32x4ConvertI16x8 and I16x8ConvertI8x16. Also, remove skip tests from status files that were overriden when tests were renamed. TEST=cctest/test-run-wasm-simd/RunWasm_I16x8ConvertI8x16_turbofan Change-Id: If428f5039a32995c8ee64294c936419173a87aa7 Reviewed-on: https://chromium-review.googlesource.com/1069007Reviewed-by:
Aseem Garg <aseemgarg@chromium.org> Reviewed-by:
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Andreas Haas authored
Aseem is the main auther of simd-scalar-lowering and should therefore be able to lgtm changes to that file. No-Try: true No-Tree-Checks: true R=titzer@chromium.org CC=aseemgarg@chromium.org Change-Id: If62d895fb18e8fd59735fec63faa38ca7a6598c5 Reviewed-on: https://chromium-review.googlesource.com/1070984Reviewed-by:
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Tobias Tebbi authored
Change-Id: Ie8bdbcdea8006d3105c419113f9adb2c1d6f162c Reviewed-on: https://chromium-review.googlesource.com/1070203 Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Reviewed-by:
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Michael Starzinger authored
The RelocInfo::RUNTIME_ENTRY relocation mode is only used for deopt points in JavaScript code and should never appear in WebAssembly code. R=titzer@chromium.org Change-Id: Ied1d61e2b1eb886565d13448442dd6a6ed35d3f0 Reviewed-on: https://chromium-review.googlesource.com/1070197Reviewed-by:
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Théotime Grohens authored
This CL completely removes the C++ builtin implementation of the DataView.prototype.buffer, DataView.prototype.byteLength, and DataView.prototype.byteOffset getters, and moves them to a Torque implementation (that still relies on a bit of CSA). Change-Id: Id46678ae709c3787b7b93d0f78bd2a6e16e00f7b Reviewed-on: https://chromium-review.googlesource.com/1070369 Commit-Queue: Théotime Grohens <theotime@google.com> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#53339}
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Sigurd Schneider authored
Bug: chromium:846000 Change-Id: If74749f11c7e1e112090a18f79ebed1819535d24 Reviewed-on: https://chromium-review.googlesource.com/1071671Reviewed-by:
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Sigurd Schneider authored
Bug: v8:7783 Change-Id: If351c07735b583816389b77d4077b3494571626f Reviewed-on: https://chromium-review.googlesource.com/1071441 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Sigurd Schneider authored
Bug: v8:7783 Change-Id: I49a6d1a4b22dcfdda206b1c00cfff16310a0458c Reviewed-on: https://chromium-review.googlesource.com/1071609 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
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Sigurd Schneider authored
Bug: v8:7783 Change-Id: I69e3744a40eeebb5fb4592a4ae56efbb7cb762a8 Reviewed-on: https://chromium-review.googlesource.com/1069354 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#53335}
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Jaroslav Sevcik authored
Change-Id: I485e6ef79fb641ca1db0784433b0866c91a382b8 Reviewed-on: https://chromium-review.googlesource.com/1071442Reviewed-by:
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Sigurd Schneider authored
The slow test tests SmiLexicographicCompare on a large number of Smi comparisons; we can disable this test for some debug/noopt builds without losing much coverage. Bug: v8:7783 Change-Id: Iab40e596604bb957b4d3312073ad85dbac08c6a0 Reviewed-on: https://chromium-review.googlesource.com/1068190 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Simon Zünd authored
R=petermarshall@chromium.org Change-Id: Id27cae79dcd82b6dd7790736169c76e89ae8881d Reviewed-on: https://chromium-review.googlesource.com/1071428 Commit-Queue: Simon Zünd <szuend@google.com> Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#53332}
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Simon Zünd authored
R=tebbi@chromium.org Change-Id: Id524c8239f99fc26ac5cd19cbdea39dba62f2c3f Reviewed-on: https://chromium-review.googlesource.com/1071650Reviewed-by:
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Peter Marshall authored
We store deopt inline frames for all functions when we receive the code creation event. We only ever use this information for code which is deoptimized. Given that we receive code deopt events, we can just store this information when the code is deoptimized. At the time of the code deopt event, we also know the associated deopt_id. That means we don't need to store a map of deopt_ids to vectors of frames, because we will only ever access the frames for the deopt_id that is already set. This means we store way less data, particularly for long-running processes which see fewer deopts. This saves 10MiB peak memory on the node server example. Bug: v8:7719 Change-Id: If6cf5ec413848e4c9f3c1e2106366ae2adae6fb1 Reviewed-on: https://chromium-review.googlesource.com/1050289 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Cr-Commit-Position: refs/heads/master@{#53330}
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Peter Marshall authored
This distinction doesn't matter, they aren't treated any differently to other strings. Change-Id: I524a0a1c4089284af97aa507afc5bd5985fe6631 Reviewed-on: https://chromium-review.googlesource.com/1071628Reviewed-by:
Camillo Bruni <cbruni@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#53329}
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Marja Hölttä authored
Moving them away was a mistake. Fixing this enables getting rid of a bunch of includes. BUG=v8:5402 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I5482eab4281c7450350f058fe0a04a6f375ea082 Reviewed-on: https://chromium-review.googlesource.com/1070188Reviewed-by:
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Jaroslav Sevcik authored
Currently, we context allocate all parameters for generators. With this CL, we keep arguments on stack (unless they escape to inner closure) and copy them between the stack and the generator's register file on suspend/resume. This will save context allocation in most cases. Note: There is an asymmetry between suspend and resume. - Suspend copies arguments and registers to the generator. - Resume copies only the registers from the generator, the arguments are copied by the ResumeGenerator trampoline. Bug: v8:5164 Change-Id: I6333898c60abf461b1ab1b5c6d3dc7188fa95649 Reviewed-on: https://chromium-review.googlesource.com/1063712 Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#53327}
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Miran.Karic authored
The timeout in the test is close to execution time in debug mode so it fails occasionally. The test is measuring array slice algorithm performance but changes unrelated to it affect the test result in debug mode, therefore it should be skipped. BUG=v8:7726 TEST=regress/regress-165637 Change-Id: Ib330d8e3c0d3f6a1150ccb59b60d17a41b87df87 Reviewed-on: https://chromium-review.googlesource.com/1071576 Commit-Queue: Miran Karić <miran.karic@mips.com> Reviewed-by:
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Dan Elphick authored
Removes uses of HeapObject::GetIsolate()/GetHeap() from VerifyPointersVisitor by adding it to the visitor at construction time. Bug: v8:7786 Change-Id: I28388f2eadbaf9947eafe0c62492c9a4781be250 Reviewed-on: https://chromium-review.googlesource.com/1071575Reviewed-by:
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Michael Hablich authored
TBR=machenbach@chromium.org NOTRY=true Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I045123269afe02302d6b7823ba431fa735312000 Reviewed-on: https://chromium-review.googlesource.com/1070978 Commit-Queue: Michael Hablich <hablich@chromium.org> Reviewed-by:
Michael Hablich <hablich@chromium.org> Cr-Commit-Position: refs/heads/master@{#53324}
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Stephan Herhut authored
This adds basic support to emit wasm disassembly to the json files digested by turbolizer. Change-Id: Icd8fc92e9539dc336879ef6da76e31890b95e40e Reviewed-on: https://chromium-review.googlesource.com/1069275 Commit-Queue: Stephan Herhut <herhut@chromium.org> Reviewed-by:
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Simon Zünd authored
This CL uses the new function pointers and generic features of Torque to improve the performance of TypedArray.p.sort. Instead of one Load/Store builtin that dispatches at runtime based on the element kind, there are now many small builtins (one for each element kind). The sorting algorithm then uses function pointers to those small builtins, which get set once. Changes in the relevant benchmarks: Benchmark Original (JS) Current This CL IntTypes 83.9 202.3 240.7 BigIntTypes 32.1 47.2 53.3 FloatTypes 99.3 109.3 129.3 Bug: v8:7382 Change-Id: I8684410524d546615b19f6edcbfdc615068196aa Reviewed-on: https://chromium-review.googlesource.com/1070069 Commit-Queue: Simon Zünd <szuend@google.com> Reviewed-by:
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Sigurd Schneider authored
Bug: v8:7754 Change-Id: Ifa329efa1ccbae3d4cf6251f43b11b697ddf76f8 Reviewed-on: https://chromium-review.googlesource.com/1068678 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Georg Neis authored
Instead use the canonical empty fixed array. Some code assumes that this is the only fixed array of length 0. Bug: chromium:843062 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: If780acf50147c061a81f2ff2b31779fbd1c78559 Reviewed-on: https://chromium-review.googlesource.com/1064052Reviewed-by:
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Sigurd Schneider authored
Bug: v8:7779 Change-Id: I79471ecb038b710d21e938efd3f9207da30e6622 NOTRY=true Change-Id: I79471ecb038b710d21e938efd3f9207da30e6622 Reviewed-on: https://chromium-review.googlesource.com/1071508 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Michael Lippautz authored
Bug: v8:7760 Change-Id: I5589b873845d614a4751b12319c61c91aae04a84 Reviewed-on: https://chromium-review.googlesource.com/1070829Reviewed-by:
Marja Hölttä <marja@chromium.org> Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#53318}
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v8-autoroll authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/4389c9c..1e1a86d Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/12f7d6b..1986f5a TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org Change-Id: I70e535a4ac787454f82d8d3f4ef57c2bcb57e564 Reviewed-on: https://chromium-review.googlesource.com/1071187Reviewed-by:
v8 autoroll <v8-autoroll@chromium.org> Commit-Queue: v8 autoroll <v8-autoroll@chromium.org> Cr-Commit-Position: refs/heads/master@{#53317}
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- 23 May, 2018 2 commits
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Aseem Garg authored
R=gdeepti@chromium.org,bbudge@chromium.org,clemensh@chromium.org,titzer@chromium.org BUG=v8:6020 Change-Id: I671d74b49206a3612764c7b9cb63591e7e81e857 Reviewed-on: https://chromium-review.googlesource.com/1069933 Commit-Queue: Aseem Garg <aseemgarg@chromium.org> Reviewed-by:
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Mathias Bynens authored
Bug: v8:7220 Change-Id: I9fef685f19cadbe87cd6451fe887f4c9c7d23b19 Reviewed-on: https://chromium-review.googlesource.com/1070337 Commit-Queue: Mathias Bynens <mathias@chromium.org> Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#53315}
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