[llvm-bugs] Issue 16194 in oss-fuzz: llvm/llvm-isel-fuzzer--aarch64-gisel: ASSERT: DstTy.getSizeInBits() > SrcTy.getSizeInBits() && "invalid narrowing extend"
ClusterFuzz-External via monorail via llvm-bugs
llvm-bugs at lists.llvm.org
Sat Aug 3 07:01:48 PDT 2019
Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-08-03
Type: Bug
New issue 16194 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=16194
Detailed report: https://oss-fuzz.com/testcase?key=5633846246113280
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=201908020315:201908030321
Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=5633846246113280
Issue filed automatically.
See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for
instructions to reproduce this bug locally.
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