I see new warnings when I build on AVX2 machine (no AVX512) with JDK-8326135 changes:
```
Warning: unused operand (immI_32)
Warning: unused operand (immI_64)
Warning: unused operand (immL10)
Warning: unused operand (immL_127)
Warning: unused operand (kReg_K1)
Warning: unused operand (kReg_K2)
Warning: unused operand (kReg_K3)
Warning: unused operand (kReg_K4)
Warning: unused operand (kReg_K5)
Warning: unused operand (kReg_K6)
Warning: unused operand (kReg_K7)
Warning: unused operand (no_rax_rbx_RegP)
```
I did not check which are not used and which are used only with AVX512.
We need to remove unused operators or add them to exceptions.