- 09 Jun, 2020 1 commit
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Manos Koukoutos authored
The reference types wasm proposal dropped all subtyping. Subsequently, the 'anyref' type was renamed to externref. This changes all references of the *type* anyref to externref. Additionally, the flag that permits this extension is renamed to "reftypes" to mirror the proposal name. Bug: v8:7748 Change-Id: Icf323f13b9660fd10540e65125af053fca3a03f9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232941 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by:
Kim-Anh Tran <kimanh@chromium.org> Reviewed-by:
Clemens Backes <clemensb@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#68270}
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- 05 Jun, 2020 1 commit
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Andreas Haas authored
Due to recent spec changes, We do not have to check if ref.func instructions in global declarations only refer to declared functions. Additionally functions referenced in exports and globals are now considered declared. R=ecmziegler@chromium.org Bug: v8:10556 Change-Id: I79856c7d68155a04eb36769ceed8a58fe62a9f9f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2228653 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Emanuel Ziegler <ecmziegler@chromium.org> Cr-Commit-Position: refs/heads/master@{#68190}
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- 03 Jun, 2020 3 commits
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Andreas Haas authored
All subtyping has been removed from the reference-types proposal. This CL implements this proposal change now in V8. R=manoskouk@chromium.org Bug: v8:10556 Change-Id: I08ef064952278e03ea655461fa9f0c96426157c7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2222345 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#68152}
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Andreas Haas authored
Even in unreachable code, the targets of br_table have to have matching types. R=thibaudm@chromium.org Bug: v8:10556 Change-Id: I2e85df3cb92f7910a6bcb5ac03927c424194660d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2218062 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#68148}
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Andreas Haas authored
With recent changes to the anyref proposal, null refs now have a type immediate which declares the type of a null ref constant. Likewise, the RefIsNull instruction is type aware now. This CL addresses these proposal changes now. R=jkummerow@chromium.org Bug: v8:10556 Change-Id: I810dfa3a4ab4389afc9639f897cee5d43e9b62cb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2215172 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#68141}
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- 25 May, 2020 1 commit
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Andreas Haas authored
This CL also fixes a small bug in the update-wasm-spec-tests.sh script, as it was not able to handle proposals without additional core spec tests. It also disables a lot of tests. R=jkummerow@chromium.org bug:v8:10556 Change-Id: Ibd885350478de935dc67edb664715cfa64f1d8e1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2210248 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#67949}
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- 06 May, 2020 1 commit
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Jakob Gruber authored
The serializer currently cannot handle a heap state containing arbitrary compiled Code objects. As a quick fix for the --stress-snapshot d8 flag, we clear compiled data from the isolate prior to the serialize-deserialize-verify pass. With this change, mjsunit tests pass on x64. The %SerializeDeserializeNow() runtime function would require more work, since it is not possible to mutate the heap to this extent while still preserving a runnable host context and isolate. We will need another solution there. Drive-by: Skip the stress_snapshot variant except for the mjsunit suite. Tbr: machenbach@chromium.org Bug: v8:10493,v8:10416 Change-Id: Ie110da8b51613fcd69c7f391d3cf8589d6b04dd8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2182429Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#67585}
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- 22 Apr, 2020 2 commits
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Thibaud Michaud authored
The multi-value repository was removed from the list of repositories we pull in update-wasm-spec-tests.sh. But the tarball still contains some multi-value tests which should be removed. R=ahaas@chromium.org Change-Id: Ifb96a105c95d09f202a0f23ba50cddaa7ced494b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2161074Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#67323}
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Thibaud Michaud authored
The multi-value proposal is now merged in the main spec repository, so: - Remove everything that references the multi-value spec repository - Add --experimental-wasm-mv to the default flags R=ahaas@chromium.org Change-Id: I9f809c21404bb5c1d21eb330748ea51a15688546 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2153219 Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#67313}
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- 27 Mar, 2020 1 commit
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Andreas Haas authored
This CL fixes a spec violation that new spec tests uncovered. R=thibaudm@chromium.org CC=ecmziegler@chromium.org Change-Id: Ie8ae455117f1c719815bad78f14c3b2c5e404e79 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2122023 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#66885}
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- 26 Mar, 2020 1 commit
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Andreas Haas authored
R=thibaudm@chromium.org Change-Id: Idb20e87e6a27a816ac1898b9e4345e5aaafaf334 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2122018Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#66873}
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- 26 Feb, 2020 1 commit
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Emanuel Ziegler authored
Added a type field to elements to distinguish anyref, funcref and nullref elements and do a proper type checking at compile time as the spec requires. R=ahaas@chromium.org Change-Id: I31be7aa1170439859ca7ec5e20aabb2720c290b3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2069330 Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#66448}
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- 18 Feb, 2020 1 commit
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Andreas Haas authored
R=jkummerow@chromium.org Change-Id: If8978ab9cac24cd650553013ac7d41f501ea243d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2061554 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#66309}
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- 17 Feb, 2020 1 commit
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Emanuel Ziegler authored
Implement the latest spec changes: - Allow declarative segments to behave like passive & dropped segments. - Enforce that only declared functions may be returned or used in globals as funcref. - Ensure that table fill does not modify any entries if OOB. Spec tests for select and br_table are still failing due to proposal issue Bug: v8:10156 R=ahaas@chromium.org Change-Id: I5b95be36a67bc7482a84b848908cc4cbdf94af03 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2027458Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org> Cr-Commit-Position: refs/heads/master@{#66297}
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- 05 Feb, 2020 1 commit
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Andreas Haas authored
R=thibaudm@chromium.org Change-Id: I68688e9613a9af4091963175b041df82410bddc4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2037446Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#66139}
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- 24 Jan, 2020 1 commit
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Andreas Haas authored
R=thibaudm@chromium.org CC=ecmziegler@chromium.org Change-Id: I3f34dc69e5ec7e4a5872c740788812367ae56a5f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2019166Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#65981}
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- 15 Jan, 2020 1 commit
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Emanuel Ziegler authored
Add decoding of ref.null as a valid argument for references in TurboFan, LiftOff and the interpreter. R=ahaas@chromium.org R=jkummerow@chromium.org Bug: chromium:10063 Change-Id: I1e2d9c76f616dacb3aa06f8b535543bdcdcf0783 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1991485 Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#65788}
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- 08 Jan, 2020 1 commit
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Jakob Kummerow authored
Add jkummerow, thibaudm, zhin; drop titzer. Also make src/wasm/OWNERS the source of truth and let test-specific OWNERS files refer to that. No-Try: true Change-Id: I9862ae452970e20b7842269721ad6a7953f275fc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1989827 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Auto-Submit: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#65636}
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- 17 Dec, 2019 1 commit
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Zhao Jiazhong authored
port 0f8769df https://crrev.com/c/1967379 Change-Id: If756f5ea84657151a807d02a7407dadc959f06e9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1970975 Auto-Submit: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Reviewed-by:
Clemens Backes <clemensb@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#65473}
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- 16 Dec, 2019 2 commits
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Milad Farazmand authored
Port 0f8769df R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: Ica16f208f429d637faef14942d31ed66527b3dab Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1969064Reviewed-by:
Andreas Haas <ahaas@chromium.org> Reviewed-by:
Junliang Yan <jyan@ca.ibm.com> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#65466}
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Andreas Haas authored
R=ecmziegler@chromium.org Bug: v8:10063 Change-Id: I2c962e4c91578dd82ff40df1b2b69aeee7dbbf18 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1967379Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#65459}
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- 13 Dec, 2019 1 commit
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Michael Starzinger authored
R=clemensb@chromium.org Change-Id: Ibd6790a222590fd4dce9f918219a19f01c2e1e0f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1960293Reviewed-by:
Clemens Backes <clemensb@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#65439}
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- 03 Dec, 2019 1 commit
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Emanuel Ziegler authored
The following changes were introduced with the recent proposal update: - OOB access with 0 length traps - Double drop of segments is allowed - Dropped segments are treated like having size 0 (OOB error) - Active segments are dropped right after initialization R=ahaas@chromium.org Change-Id: I4e9fc4d9212841c7d858585c672143f99287520d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1946355Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org> Cr-Commit-Position: refs/heads/master@{#65305}
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- 28 Nov, 2019 1 commit
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Andreas Haas authored
The bulk-memory tests changed with recent proposal changes: OOB accesses of size 0 cause traps now. R=thibaudm@chromium.org CC=emcziegler@chromium.org Change-Id: Id3f74373839434a61d3bf346a12146aa77894a8a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1940159Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#65245}
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- 21 Nov, 2019 1 commit
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Emanuel Ziegler authored
InstanceBuilder::LoadTableSegments - Throw RuntimeError instead of LinkError WasmGraphBuilder::TableInit & WasmGraphBuilder::MemoryInit - Do not check for active/dropped status if size == 0 WasmGraphBuilder::MemoryFill - Throw out-of-bounds error BEFORE attempting any memory operations if necessary R=ahaas@chromium.org Bug: v8:9865 Change-Id: I6a67779dc99fdc1c6bda6a2526d0e9ee5385f3ed Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924442Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org> Cr-Commit-Position: refs/heads/master@{#65098}
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- 20 Nov, 2019 1 commit
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Andreas Haas authored
This is necessary because the spec changed. R=mstarzinger@chromium.org Bug: v8:9865 Change-Id: Id8b4d85eafcf368d591666907036e6aa54664e63 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1921794 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#65072}
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- 18 Nov, 2019 1 commit
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Andreas Haas authored
R=mstarzinger@chromium.org Change-Id: I1eefd4cbb2a00535a8d6a9c830aadf3620011ea9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1921788Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#65006}
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- 11 Nov, 2019 1 commit
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Andreas Haas authored
I changed the verification algorithm of switch nodes from a quadratic algorithm to a linear one. On my machine this speeds up the test from 17 seconds to 2 seconds in the x64.optdebug build. R=mslekova@chromium.org Bug: v8:9810 Change-Id: I952d3fcc641b4e269b8ebac8f65fe545c6062587 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1905768 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#64877}
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- 31 Oct, 2019 1 commit
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Andreas Haas authored
Update the WebAssembly spec tests. Additional changes: * Enable tests that pass now: some proposals had out-dated tests. With the proposals being rebased, these tests pass now. * Run the multi-value proposal tests with --no-experimental-wasm-bulk-memory. We already enabled bulk-memory by default, but it includes some breaking changes. R=thibaudm@chromium.org Bug: v8:9673 Change-Id: Ic6de44fc01cee640c741d825dc70b1bdfb1297f4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1890096Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#64672}
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- 22 Oct, 2019 2 commits
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Thibaud Michaud authored
R=mstarzinger@chromium.org Bug: v8:6672 Change-Id: Id8a53f6f74fa05150469c35ceba9470e75363637 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1847156Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#64472}
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Simon Zünd authored
Embedded builtins are now unconditionally enabled, which removes the need to differentiate between enabled/disabled embedded builtins. This Cl removes the 'embedded_builtins' variant and related *.status entries. R=machenbach@chromium.org Bug: v8:8519 Change-Id: I55d0dd54735b7cc437832af6fa2836fd6c14a317 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864936 Commit-Queue: Simon Zünd <szuend@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#64464}
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- 26 Sep, 2019 1 commit
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Clemens Backes authored
R=adamk@chromium.org No-Try: true Change-Id: Idedb3d80382c876f09c545cf0f1cc7387b9ad805 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1825242 Auto-Submit: Clemens Backes [né Hammacher] <clemensb@chromium.org> Reviewed-by:
Adam Klein <adamk@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#63979}
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- 17 Sep, 2019 1 commit
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Andreas Haas authored
The element segment encoding in the bulk memory proposal changed recently. With this CL the V8 implementation gets up to date again. R=thibaudm@chromium.org Bug: v8:9658 Change-Id: I4f45d04369400356a6f3aaed9570c7870f5f97bd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1778022Reviewed-by:
Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#63836}
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- 05 Sep, 2019 2 commits
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Andreas Haas authored
There was no problem with the original CL. I just had a problem with my local git branches. Original message: The implementation on wasm-bigint has been done, as far as I can tell. There are no spec tests yet, only an out-dated copy of the original spec tests which don't pass anymore. Therefore I disabled all the tests for now and created a tracking bug at https://crbug.com/v8/9673. TBR=adamk@chromium.org Bug: v8:7741, v8:9673 Change-Id: Ida7ccda4547cf3fdcdff151d8b02946b7aa534ca Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1787420Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#63575}
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Mu Tao authored
On mips, NaN bit patterns is not same as WASM's definitions. Port e101dfb7 R=clemensh@chromium.org Change-Id: I134cd6289b7cf5d1a366345fe0a79cbecc9a6f73 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782234 Auto-Submit: Mu Tao <pamilty@gmail.com> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#63565}
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- 29 Aug, 2019 1 commit
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Milad Farazmand authored
Port e101dfb7 R=mstarzinger@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG=v8:7742 LOG=N Change-Id: I013d461bce61deae032aee08b2b1d9dac591d66a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1774960Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#63447}
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- 28 Aug, 2019 2 commits
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Michael Starzinger authored
R=ahaas@chromium.org BUG=v8:7742 Change-Id: Ifaab43b3ca25eb3e03b7f02a2a3864ecc3f41d61 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1771791Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#63425}
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Andreas Haas authored
At the moment we only run the js-api spec tests of the core API on our try bots. With the new staging process we want to introduce for WebAssembly language features, see https://docs.google.com/document/d/1hB8mpWmzmtaxZ8PuJEkAWLwFqXTjrw7mJ3Ge9W1dB4E, we also want to run the js-api spec tests of proposals for which we already staged the implementation. With this CL I do the following changes: 1) The tools/wasm/update-wasm-spec-tests.sh now copies the js-api spec tests of the main spec and of the proposals to test/wasm-js/tests, and then uploads this directory to google cloud storage. The main spec tests are in test/wasm-js/tests, the proposal tests are in test/wasm-js/tests/proposals/PROPOSAL_NAME/. 2) Adjust the test-runner in test/wasm-js to run tests in tests/* instead of data/test/js-api/*. Thereby it also runs the proposal tests in test/wasm-js/tests/proposals/PROPOSAL_NAME/. For the proposal tests, the test runner now also adds d8 flags. 3) Remove the dependency to https://github.com/WebAssembly/spec from DEPS. 4) Cleanup .gitignore and wasm-js.status 5) Disable spec tests we don't pass with the new proposal. R=tmrts@chromium.org Bug: v8:9653 Change-Id: Ib3420871f17cb146d6cc7868f5613942a7f79d84 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1768372 Commit-Queue: Tamer Tas <tmrts@chromium.org> Reviewed-by:
Tamer Tas <tmrts@chromium.org> Cr-Commit-Position: refs/heads/master@{#63419}
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- 02 Aug, 2019 1 commit
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Yu Yin authored
MIPS64 has a user space of 2^40 bytes on most processors, address space limits needs to be smaller. 256G is ok, but it will cause many wasm tests get a OOM error. This patch also skip some tests which need correct IEEE-745 2008 NaN bit patterns on mips. Change-Id: I52968df3934e8748b2c42a0abf19db1540441d2b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1712929Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Yu Yin <xwafish@gmail.com> Cr-Commit-Position: refs/heads/master@{#63050}
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- 30 Jul, 2019 1 commit
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Andreas Haas authored
On Windows, the FP stack registers are used with less precision. This causes rounding errors in the uint64 to float32 conversion. This CL replaces the implementation based on FP stack registers with an implementation based on bit operations. This implementation is 2x slower than the original implementation. An alternative would be to change the precision of the FP stack registers just for the uint64 to float32 conversion. However, in a micro-benchmark this is 5-6x slower than the original implementation. It is also not clear if changing the precision could cause side effects. R=clemensh@chromium.org Change-Id: Iaab6b6f258ff01e0c6e93f3632daf516fae3e74b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1708486 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#62986}
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