[llvm-bugs] Issue 18028 in oss-fuzz: llvm:llvm-isel-fuzzer--aarch64-O2: ASSERT: TRI.getRegSizeInBits(*getRegClass(DstReg)) == TRI.getRegSizeInBits(*getRegClass(

[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-2019-10-05
Type: Bug

New issue 18028 by ClusterFuzz-External: llvm:llvm-isel-fuzzer--aarch64-O2:  
ASSERT: TRI.getRegSizeInBits(*getRegClass(DstReg)) ==  
TRI.getRegSizeInBits(*getRegClass(
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18028

Detailed Report: https://oss-fuzz.com/testcase?key=5638047374245888

Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: llvm-isel-fuzzer--aarch64-O2
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   TRI.getRegSizeInBits(*getRegClass(DstReg)) ==  
TRI.getRegSizeInBits(*getRegClass(
   llvm::AArch64InstrInfo::foldMemoryOperandImpl
   llvm::TargetInstrInfo::foldMemoryOperand

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201908160326:201908170326

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5638047374245888

Issue filed automatically.

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