[llvm-bugs] Issue 12846 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-instcombine: ASSERT: EltTy && "Can't get a pointer to <null> type!"

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #5 on issue 12846 by ClusterFuzz-External:  
llvm/llvm-opt-fuzzer--x86_64-instcombine: ASSERT: EltTy && "Can't get a  
pointer to <null> type!"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12846#c5

ClusterFuzz has detected this issue as fixed in range  
201904290301:201905070306.

Detailed report: https://oss-fuzz.com/testcase?key=5641756073263104

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

Crash Type: ASSERT
Crash Address:
Crash State:
   EltTy && "Can't get a pointer to <null> type!"
   llvm::PointerType::get
   SimplifyGEPInst

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201901220414:201902020421
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201904290301:201905070306

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5641756073263104

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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