Assertion failed '(unsigned)reg < ArrLen(regMasks)' in jitStressRegs #37059
Description
These two tests fail on x64 Linux platforms with COMPlus_JitStressRegs=8, see this test run:
- JIT/Methodical/structs/systemvbringup/structinregs/structinregs.sh
- JIT/Directed/StructABI/StructABI/StructABI.sh
The failures are presumably related to the MultiReg IR changes.