Re: [BUG FIX] RISC-V: Disallow COSNT_VECTOR for DI on RV32

[Robin Dapp]

Hi Juzhe,

> This bug is exposed when testing on zvl512b RV32 system.
> 
> The rootcause is RA reload DI CONST_VECTOR into vmv.v.x then it ICE.
> 
> So disallow DI CONST_VECTOR on RV32.

OK. 

Regards
 Robin