[llvm-bugs] Issue 14330 in oss-fuzz: llvm/llvm-isel-fuzzer--aarch64-gisel: ASSERT: DstTy.getSizeInBits() > SrcTy.getSizeInBits() && "invalid narrowing extend"

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #2 on issue 14330 by ClusterFuzz-External:  
llvm/llvm-isel-fuzzer--aarch64-gisel: ASSERT: DstTy.getSizeInBits() >  
SrcTy.getSizeInBits() && "invalid narrowing extend"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14330#c2

ClusterFuzz has detected this issue as fixed in range  
201904200302:201904210259.

Detailed report: https://oss-fuzz.com/testcase?key=5670292782841856

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: ASSERT
Crash Address:
Crash State:
   DstTy.getSizeInBits() > SrcTy.getSizeInBits() && "invalid narrowing  
extend"
   llvm::MachineIRBuilder::validateTruncExt
   llvm::MachineIRBuilder::buildInstr

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201904160252:201904180259
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201904200302:201904210259

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5670292782841856

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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