[llvm-bugs] Issue 9240 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-instcombine: ASSERT: *C2 != 0 && "udiv 0, X should have been simplified already."

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #3 on issue 9240 by ClusterFuzz-External:  
llvm/llvm-opt-fuzzer--x86_64-instcombine: ASSERT: *C2 != 0 && "udiv 0, X  
should have been simplified already."
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9240#c3

ClusterFuzz has detected this issue as fixed in range  
201807050807:201807060759.

Detailed report: https://oss-fuzz.com/testcase?key=5978732861849600

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:
   *C2 != 0 && "udiv 0, X should have been simplified already."
   llvm::InstCombiner::foldICmpUDivConstant
   llvm::InstCombiner::foldICmpInstWithConstant

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201807020801:201807030756
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201807050807:201807060759

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5978732861849600

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
more information.

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

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