[llvm-bugs] Issue 5787 in oss-fuzz: llvm/llvm-isel-fuzzer--x86_64-O2: ASSERT: N2.getValueSizeInBits() >= Log2_32_Ceil(N1.getValueSizeInBits()) && "Invalid use

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #2 on issue 5787 by ClusterFuzz-External:  
llvm/llvm-isel-fuzzer--x86_64-O2: ASSERT: N2.getValueSizeInBits() >=  
Log2_32_Ceil(N1.getValueSizeInBits()) && "Invalid use
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5787#c2

ClusterFuzz has detected this issue as fixed in range  
201802200626:201802210603.

Detailed report: https://oss-fuzz.com/testcase?key=4817034052370432

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:
   N2.getValueSizeInBits() >= Log2_32_Ceil(N1.getValueSizeInBits())  
&& "Invalid use
   llvm::SelectionDAG::getNode
   llvm::TargetLowering::SimplifySetCC

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201710160455:201710190451
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201802200626:201802210603

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=4817034052370432

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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