[llvm-bugs] Issue 16588 in oss-fuzz: llvm:llvm-opt-fuzzer--x86_64-simplifycfg: ASSERT: PN->use_empty() && "There shouldn't be any uses here!"

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
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Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-08-21
Type: Bug

New issue 16588 by ClusterFuzz-External:  
llvm:llvm-opt-fuzzer--x86_64-simplifycfg: ASSERT: PN->use_empty() && "There  
shouldn't be any uses here!"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16588

Detailed Report: https://oss-fuzz.com/testcase?key=5758087142572032

Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-opt-fuzzer--x86_64-simplifycfg
Job Type: libfuzzer_msan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   PN->use_empty() && "There shouldn't be any uses here!"
   llvm::TryToSimplifyUncondBranchFromEmptyBlock
   SimplifyCFGOpt::simplifyOnce

Sanitizer: memory (MSAN)

Crash Revision:  
https://oss-fuzz.com/revisions?job=libfuzzer_msan_llvm&revision=201906300300

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5758087142572032

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for  
instructions to reproduce this bug locally.

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