[llvm-bugs] Issue 15839 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-loop_vectorize: ASSERT: Index < Length && "Invalid index!"

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-07-15
Type: Bug

New issue 15839 by ClusterFuzz-External:  
llvm/llvm-opt-fuzzer--x86_64-loop_vectorize: ASSERT: Index < Length  
&& "Invalid index!"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15839

Detailed report: https://oss-fuzz.com/testcase?key=6201290255761408

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-opt-fuzzer--x86_64-loop_vectorize
Fuzz target binary: llvm-opt-fuzzer--x86_64-loop_vectorize
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   Index < Length && "Invalid index!"
   llvm::X86TTIImpl::getIntrinsicInstrCost
   llvm::TargetTransformInfo::getIntrinsicInstrCost

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201907140313:201907150311

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=6201290255761408

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
instructions to reproduce this bug locally.

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