Assertion failed 'genCountBits(availableSet) == 1' #95025
Description
arm64
DOTNET_TieredCompilation=0
DOTNET_JitStress=2
DOTNET_JitStressRegs=8
18:56:26.028 Running test: _AdvSimd_r::JIT.HardwareIntrinsics.Arm._AdvSimd.Program.StoreSelectedScalar_Vector64_Byte_7()
Beginning scenario: RunBasicScenario_UnsafeRead
Beginning scenario: RunBasicScenario_Load
Beginning scenario: RunReflectionScenario_UnsafeRead
Assert failure(PID 22 [0x00000016], Thread: 22 [0x0016]): Assertion failed 'genCountBits(availableSet) == 1' in 'System.Runtime.Intrinsics.Arm.AdvSimd:StoreSelectedScalar(ulong,System.Runtime.Intrinsics.Vector64`1[ubyte],ubyte)' during 'Generate code' (IL size 9; hash 0x2253e0a5; FullOpts)
File: /__w/1/s/src/coreclr/jit/gentree.cpp Line: 26535
Image: /root/helix/work/correlation/corerun
[createdump] Gathering state for process 22 corerun
[createdump] Crashing thread 0016 signal 6 (0006)
apply_reg_state: ip and cfa unchanged; stopping here (ip=0xff68144f7228)
apply_reg_state: ip and cfa unchanged; stopping here (ip=0xff68144f7228)
apply_reg_state: ip and cfa unchanged; stopping here (ip=0xff68144f7228)
[createdump] Writing crash report to file /home/helixbot/dotnetbuild/dumps/coredump.22.dmp.crashreport.json
[createdump] Crash report successfully written
[createdump] Writing minidump with heap to file /home/helixbot/dotnetbuild/dumps/coredump.22.dmp
[createdump] Written 241860608 bytes (59048 pages) to core file
[createdump] Target process is alive
[createdump] Dump successfully written in 412ms
waitpid() returned successfully (wstatus 00000000) WEXITSTATUS 0 WTERMSIG 0
App Exit Code: 22
Expected: 100
Actual: 22
END EXECUTION - FAILED
@kunalspathak
cc @dotnet/jit-contrib