Sintendo cb70d5ee4f Jit64: srawix - Handle constant input register
Much like we did for srawx. This was already implemented on JitArm64.

Before:
B8 00 00 00 00       mov         eax,0
8B F0                mov         esi,eax
C1 E8 1F             shr         eax,1Fh
23 C6                and         eax,esi
D1 FE                sar         esi,1
88 45 58             mov         byte ptr [rbp+58h],al

After:
C6 45 58 00          mov         byte ptr [rbp+58h],0
2020-12-25 19:30:51 +01:00
..
2020-09-21 17:27:10 +02:00
2020-05-13 20:53:10 +02:00