Fix: https://crrev.com/c/758772

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ClusterFuzz testcase 5016944603561984 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

ClusterFuzz has detected this issue as fixed in range 514773:514780.

Detailed report: https://clusterfuzz.com/testcase?key=5906530846375936

Fuzzer: libFuzzer_v8_wasm_compile_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  interpreter != liftoff (ec35c0be vs ebeNUMBER); WasmCodeFuzzerHash=ee207cda in w
  v8::internal::wasm::fuzzer::WasmExecutionFuzzer::FuzzWasmModule
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=514357:514376
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=514773:514780

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5906530846375936

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

 Issue 782779  has been merged into this issue.

Signature changed because of a change in the fuzzer. The original issue is not fixed yet.
CL is ready, see #12.

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The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/6c6132880adf636960f47662570766ab424be534

commit 6c6132880adf636960f47662570766ab424be534
Author: Clemens Hammacher <clemensh@chromium.org>
Date: Fri Nov 10 09:47:32 2017

[Liftoff] Implement parallel register moves

This was not implemented so far, leading to lots of clusterfuzz issues.
Testing this feature would require complicating the interface a lot and
exposing more implementation details in the header file, hence we just
go with regression tests for now.

R=ahaas@chromium.org, titzer@chromium.org

Bug: v8:6600,  chromium:782280 
Change-Id: I12863f3eb59a8dffdcc7d3bfb8e1f0ae0eec15ee
Reviewed-on: https://chromium-review.googlesource.com/758772
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49286}
[modify] https://crrev.com/6c6132880adf636960f47662570766ab424be534/src/wasm/baseline/liftoff-assembler.cc
[add] https://crrev.com/6c6132880adf636960f47662570766ab424be534/test/mjsunit/regress/wasm/regress-782280.js

Reverted, have to reland after fix.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/5a6cc315f843a3a6fc37e54069f19aa7164c78a4

commit 5a6cc315f843a3a6fc37e54069f19aa7164c78a4
Author: Clemens Hammacher <clemensh@chromium.org>
Date: Fri Nov 10 10:04:35 2017

Revert "[Liftoff] Implement parallel register moves"

This reverts commit 6c6132880adf636960f47662570766ab424be534.

Reason for revert: breaks compilation on win64 bot: https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20msvc/builds/69

Original change's description:
> [Liftoff] Implement parallel register moves
> 
> This was not implemented so far, leading to lots of clusterfuzz issues.
> Testing this feature would require complicating the interface a lot and
> exposing more implementation details in the header file, hence we just
> go with regression tests for now.
> 
> R=​ahaas@chromium.org, titzer@chromium.org
> 
> Bug: v8:6600,  chromium:782280 
> Change-Id: I12863f3eb59a8dffdcc7d3bfb8e1f0ae0eec15ee
> Reviewed-on: https://chromium-review.googlesource.com/758772
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49286}

TBR=titzer@chromium.org,ahaas@chromium.org,clemensh@chromium.org

Change-Id: I386983da7f9f03d54cef2190b01fd2cc5785966e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6600,  chromium:782280 
Reviewed-on: https://chromium-review.googlesource.com/763367
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49289}
[modify] https://crrev.com/5a6cc315f843a3a6fc37e54069f19aa7164c78a4/src/wasm/baseline/liftoff-assembler.cc
[delete] https://crrev.com/9eaf163d6f3a0b744de1a45047674fea7004af63/test/mjsunit/regress/wasm/regress-782280.js

 Issue 783664  has been merged into this issue.

 Issue 783712  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/359e69e183f495f160cde9206761ada3634a7e55

commit 359e69e183f495f160cde9206761ada3634a7e55
Author: Clemens Hammacher <clemensh@chromium.org>
Date: Fri Nov 10 12:18:08 2017

Reland "[Liftoff] Implement parallel register moves"

This is a reland of 6c6132880adf636960f47662570766ab424be534
Original change's description:
> [Liftoff] Implement parallel register moves
> 
> This was not implemented so far, leading to lots of clusterfuzz issues.
> Testing this feature would require complicating the interface a lot and
> exposing more implementation details in the header file, hence we just
> go with regression tests for now.
> 
> R=ahaas@chromium.org, titzer@chromium.org
> 
> Bug: v8:6600,  chromium:782280 
> Change-Id: I12863f3eb59a8dffdcc7d3bfb8e1f0ae0eec15ee
> Reviewed-on: https://chromium-review.googlesource.com/758772
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49286}

Bug: v8:6600,  chromium:782280 
Change-Id: I82a75bfeaf83dc63a2917da3ccdc4721c5d689e7
Reviewed-on: https://chromium-review.googlesource.com/763387
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49292}
[modify] https://crrev.com/359e69e183f495f160cde9206761ada3634a7e55/src/wasm/baseline/liftoff-assembler.cc
[add] https://crrev.com/359e69e183f495f160cde9206761ada3634a7e55/test/mjsunit/regress/wasm/regress-782280.js

\

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