Regression range points to b8229ec446b80fd3ff9a08362fe1cef36e9d8346 ...

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/5e0cd389bff2833c0b13179977b11ec216330bb3

commit 5e0cd389bff2833c0b13179977b11ec216330bb3
Author: bmeurer <bmeurer@chromium.org>
Date: Tue Jun 21 10:38:50 2016

[turbofan] MemoryOptimizer cannot deal with dead nodes in use lists.

We need to trim the graph before we execute the MemoryOptimizer, because
that just walks the effect chain from Start to End and cannot deal with
dead nodes in the use lists.

R=jarin@chromium.org
BUG= chromium:614292 

Review-Url: https://codereview.chromium.org/2080703003
Cr-Commit-Position: refs/heads/master@{#37133}

[modify] https://crrev.com/5e0cd389bff2833c0b13179977b11ec216330bb3/src/compiler/pipeline.cc
[add] https://crrev.com/5e0cd389bff2833c0b13179977b11ec216330bb3/test/mjsunit/regress/regress-crbug-614292.js

ClusterFuzz has detected this issue as fixed in range 37129:37138.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6442029500596224

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_v8_arm_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  IrOpcode::kMerge == control->opcode() in memory-optimizer.cc
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_d8_v8_arm_dbg&range=36127:36128
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_d8_v8_arm_dbg&range=37129:37138

Minimized Testcase (6.57 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95wHcPDJ9ouOAN49CDXePFacFlav87FC0EV9K6x6zRfrKG5Hefl3ACycl1o6n18lhnMJHsfQa0oyerICu8UsQqmXAOeAgwuDZIeex285lKmlhQ2o0wVslu-L4xhcTvckOymzkwXFzyk964UBAd-6RlfUrFToQ?testcase_id=6442029500596224

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

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

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