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Assertion failed 'varTypeIsInt(type)' in 'System.Tests.UInt128Tests_GenericMath:TrailingZeroCountTest()' during 'Do value numbering' (IL size 111; hash 0x36fbe8ed; FullOpts) #81366
Description
From runtime-coreclr jitstress-random
;; linux arm64 (also fails on windows and with other config settings)
export DOTNET_TieredCompilation=0
export DOTNET_DbgEnableMiniDump=1
export DOTNET_EnableCrashReport=1
export DOTNET_DbgMiniDumpName=$HELIX_DUMP_FOLDER/coredump.%d.dmp
export DOTNET_JitStress=ba
Assert failure(PID 27 [0x0000001b], Thread: 41 [0x0029]): Assertion failed 'varTypeIsInt(type)' in 'System.Tests.Int128Tests_GenericMath:TrailingZeroCountTest()' during 'Do value numbering' (IL size 111; hash 0xcc847a78; FullOpts)
File: /__w/1/s/src/coreclr/jit/valuenum.cpp Line: 6039
Image: /root/helix/work/correlation/do
Activity
tannergooding commentedon Jan 30, 2023
Hmmm, I wonder what's causing this.
The actual hardware intrinsic returns
intand the special import we do forUInt64.LeadingZeroCounthardcodes the type toTYP_INTas well.JIT: Fix import of TrailingZeroCount on ARM64
JIT: Fix import of TrailingZeroCount on ARM64 (#81419)