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Issue 841117 link

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Issue metadata

Status: Verified
Owner:
Closed: May 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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V8 correctness failure in configs: x64,ignition:x64,trusted

Project Member Reported by ClusterFuzz, May 9 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6313917731831808

Fuzzer: foozzie_js_mutation
Job Type: v8_foozzie
Platform Id: linux

Crash Type: V8 correctness failure
Crash Address: 
Crash State:
  configs: x64,ignition:x64,trusted
  sources: 621
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=v8_foozzie&range=53047:53048

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6313917731831808

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, May 9 2018

Labels: Test-Predator-Auto-Owner
Owner: jarin@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/3fe7d698b8516f102a62fdc4132a78c8986361be ([turbofan] Optimize array destructuring).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Simple repro:
var v = -1073741825;
function foo() { return Math.floor(-v / 125); }
foo();
%OptimizeFunctionOnNextCall(foo);
print(foo());

Comment 3 by jarin@chromium.org, May 9 2018

Status: Started (was: Assigned)
My CL just flushed an older bug in Math.floor typing. Fix is coming soon.
Project Member

Comment 4 by bugdroid1@chromium.org, May 9 2018

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/d520ebb9a85b73b2a6505e133a7cc940c7d2adbd

commit d520ebb9a85b73b2a6505e133a7cc940c7d2adbd
Author: Jaroslav Sevcik <jarin@chromium.org>
Date: Wed May 09 07:32:46 2018

[turbofan] Fix NumberFloor typing.

Bug:  chromium:841117 
Change-Id: I1e83dfc82f87d0b49d3cca96290ae1d738e37d20
Reviewed-on: https://chromium-review.googlesource.com/1051228
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53083}
[modify] https://crrev.com/d520ebb9a85b73b2a6505e133a7cc940c7d2adbd/src/compiler/typed-optimization.cc
[add] https://crrev.com/d520ebb9a85b73b2a6505e133a7cc940c7d2adbd/test/mjsunit/compiler/regress-841117.js

Comment 5 by jarin@chromium.org, May 9 2018

Status: Fixed (was: Started)
Project Member

Comment 6 by ClusterFuzz, May 10 2018

ClusterFuzz has detected this issue as fixed in range 53082:53083.

Detailed report: https://clusterfuzz.com/testcase?key=6313917731831808

Fuzzer: foozzie_js_mutation
Job Type: v8_foozzie
Platform Id: linux

Crash Type: V8 correctness failure
Crash Address: 
Crash State:
  configs: x64,ignition:x64,trusted
  sources: 621
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=v8_foozzie&range=53047:53048
Fixed: https://clusterfuzz.com/revisions?job=v8_foozzie&range=53082:53083

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6313917731831808

See https://github.com/google/clusterfuzz-tools for more information.

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

Comment 7 by ClusterFuzz, May 10 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 6313917731831808 is verified as fixed, so closing issue as verified.

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

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