Status: New
Owner: ----
CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com,
igm...@gmail.com, mit...@google.com, bigchees...@gmail.com,
eney...@google.com, llvm-b...@lists.llvm.org, j...@chromium.org,
v...@apple.com, mitchphi...@outlook.com, xpl...@gmail.com,
akils...@apple.com
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible
Engine-libfuzzer Proj-llvm Reported-2019-03-09
Type: Bug
New issue 13630 by ClusterFuzz-External: llvm/llvm-isel-fuzzer--x86_64-O2:
ASSERT: MRI->getVRegDef(Reg) && "Machine instr not mapped for this vreg?!"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13630
Detailed report: https://oss-fuzz.com/testcase?key=5647237177147392
Project: llvm
Fuzzer: libFuzzer_llvm_llvm-isel-fuzzer--x86_64-O2
Fuzz target binary: llvm-isel-fuzzer--x86_64-O2
Job Type: libfuzzer_asan_llvm
Platform Id: linux
Crash Type: ASSERT
Crash Address:
Crash State:
MRI->getVRegDef(Reg) && "Machine instr not mapped for this vreg?!"
MachineLICMBase::IsLoopInvariantInst
MachineLICMBase::runOnMachineFunction
Sanitizer: address (ASAN)
Regressed:
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201903050442:201903070433
Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=5647237177147392
Issue filed automatically.
See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for
instructions to reproduce this bug locally.
When you fix this bug, please
* mention the fix revision(s).
* state whether the bug was a short-lived regression or an old bug in any
stable releases.
* add any other useful information.
This information can help downstream consumers.
If you need to contact the OSS-Fuzz team with a question, concern, or any
other feedback, please file an issue at
https://github.com/google/oss-fuzz/issues.
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