[llvm-bugs] Issue 14161 in oss-fuzz: llvm/llvm-isel-fuzzer--aarch64-gisel: Null-dereference READ in llvm::EVT::isExtendedVector

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #2 on issue 14161 by ClusterFuzz-External:  
llvm/llvm-isel-fuzzer--aarch64-gisel: Null-dereference READ in  
llvm::EVT::isExtendedVector
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14161#c2

ClusterFuzz has detected this issue as fixed in range  
201904121821:201904130302.

Detailed report: https://oss-fuzz.com/testcase?key=5725948613230592

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-isel-fuzzer--aarch64-gisel
Fuzz target binary: llvm-isel-fuzzer--aarch64-gisel
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
   llvm::EVT::isExtendedVector
   llvm::TargetLoweringBase::getRegisterType
   llvm::CallLowering::handleAssignments

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201904080300:201904100010
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201904121821:201904130302

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5725948613230592

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

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

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