[llvm-bugs] Issue 15948 in oss-fuzz: llvm/llvm-isel-fuzzer--aarch64-gisel: ASSERT: (ResTy == Op0Ty && ResTy == Op1Ty) && "type mismatch"

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-07-18
Type: Bug

New issue 15948 by ClusterFuzz-External:  
llvm/llvm-isel-fuzzer--aarch64-gisel: ASSERT: (ResTy == Op0Ty && ResTy ==  
Op1Ty) && "type mismatch"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15948

Detailed report: https://oss-fuzz.com/testcase?key=5682819033989120

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:
   (ResTy == Op0Ty && ResTy == Op1Ty) && "type mismatch"
   llvm::MachineIRBuilder::validateSelectOp
   llvm::MachineIRBuilder::buildInstr

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201907170319:201907180312

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5682819033989120

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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